Academic literature on the topic 'Fish movements'

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Journal articles on the topic "Fish movements"

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Enders, Eva C., Colin Charles, Douglas A. Watkinson, Colin Kovachik, Douglas R. Leroux, Henry Hansen, and Mark A. Pegg. "Analysing Habitat Connectivity and Home Ranges of Bigmouth Buffalo and Channel Catfish Using a Large-Scale Acoustic Receiver Network." Sustainability 11, no. 11 (May 30, 2019): 3051. http://dx.doi.org/10.3390/su11113051.

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The determination if fish movement of potadromous species is impeded in a river system is often difficult, particularly when timing and extent of movements are unknown. Furthermore, evaluating river connectivity poses additional challenges. Here, we used large-scale, long-term fish movement to study and identify anthropogenic barriers to movements in the Lake Winnipeg basin including the Red, Winnipeg, and Assiniboine rivers. In the frame of the project, 80 Bigmouth Buffalo (Ictiobus cyprinellus) and 161 Channel Catfish (Ictalurus punctatus) were tagged with acoustic transmitters. Individual fish were detected with an acoustic telemetry network. Movements were subsequently analyzed using a continuous-time Markov model (CTMM). The study demonstrated large home ranges in the Lake Winnipeg basin and evidence of frequent transborder movements between Canada and the United States. The study also highlighted successful downstream fish passage at some barriers, whereas some barriers limited or completely blocked upstream movement. This biological knowledge on fish movements in the Lake Winnipeg basin highlights the need for fish passage solutions at different obstructions.
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Mauguit, Q., D. Olivier, N. Vandewalle, and P. Vandewalle. "Ontogeny of swimming movements in bronze corydoras (Corydoras aeneus)." Canadian Journal of Zoology 88, no. 4 (April 2010): 378–89. http://dx.doi.org/10.1139/z10-012.

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Fish larvae experience fundamental morphological, physiological, and physical changes from hatching to adulthood. All of these changes have an effect on the locomotor movements observed in the larvae. We describe the development of swimming movements in larval bronze corydoras ( Corydoras aeneus (Gill, 1858); Ostariophysi, Siluriformes) during their ontogeny. Swimming movements of adults and larvae, aged 0–512 h posthatching, were recorded at 500 frames/s. Movements were analyzed by digitizing points along the fish midline. Movements are described by direct (swimming speed and amplitude of landmarks) and indirect (r2mean and CV of r2 as movement coordination indices; Strouhal number as an efficiency index) parameters. The increase in swimming speed correlated with improvement of movement coordination in both larvae and adults, as well as with an increase in swimming efficiency in larvae. Directly after hatching, swimming movements were coordinated but were not efficient. Efficiency increased rapidly with fish growth up to 8 mm total fish length and disappearance of the yolk sac. These events were coupled with reduction of the maximal lateral amplitude observed along the whole body during swimming. The anguilliform swimming mode was used at hatching, but a transition to the carangiform mode was observed at approximately 17 mm total fish length.
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Schrank, Amy J., and Frank J. Rahel. "Movement patterns in inland cutthroat trout (Oncorhynchus clarki utah): management and conservation implications." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 8 (August 1, 2004): 1528–37. http://dx.doi.org/10.1139/f04-097.

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Knowledge of movement patterns is critical to the management and conservation of inland salmonids. We studied the movements of Bonneville cutthroat trout (Oncorhynchus clarki utah) in a drainage in western Wyoming, USA. Our objectives were to (i) characterize the postspawning movement patterns of adult Bonneville cutthroat trout, (ii) contrast postspawning and summer movement patterns, and (iii) identify factors that disrupt the movements of Bonneville cutthroat trout. Our data showed that postspawning movements of Bonneville cutthroat trout formed a continuum, with fish moving from 0.5 to 82.0 km. Postspawning distance was positively related to fish length. Despite the wide range of movement observed during the spring, fish did not move more than 0.5 km during the summer. A road culvert and an irrigation diversion dam did not seem to pose barriers to the upstream movement of Bonneville cutthroat trout to headwater spawning areas in the spring. However, 23% of radio-tagged fish in 2000 moved into the irrigation diversion ditch as they moved downstream after spawning and subsequently died there. Maintaining drainage connectivity is an important conservation concern for trout populations such as this one, where fish move between complementary spawning and summer habitats.
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Chateau, Olivier, and Laurent Wantiez. "Movement patterns of four coral reef fish species in a fragmented habitat in New Caledonia: implications for the design of marine protected area networks." ICES Journal of Marine Science 66, no. 1 (October 9, 2008): 50–55. http://dx.doi.org/10.1093/icesjms/fsn165.

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Abstract Chateau, O., and Wantiez, L. 2009. Movement patterns of four coral reef fish species in a fragmented habitat in New Caledonia: implications for the design of marine protected area networks. – ICES Journal of Marine Science, 66: 50–55. Acoustic telemetry was used to examine the patterns of fish movements between a marine reserve and two unprotected reefs separated by large areas of lagoon soft bottoms (900–2000 m) in the South Lagoon Marine Park of New Caledonia. Four commercial fish species (Epinephelus maculatus, Plectropomus leopardus, Chlorurus microrhinos, and Scarus ghobban) were studied for 17 months (45 fish). Nine fish (20%) were detected on reefs other than the reef onto which they were released. Four patterns of inter-reef movement were identified during the survey, including home range relocations, movements larger than the scale of the study, many inter-reef movements within the study area, and punctual excursions outside the daily home range. The information gathered in this study demonstrates the ability of the fish to carry out medium-scale movements in a fragmented habitat. Consequently, the effectiveness of the reserve to protect the entire population is probably limited for these species. Because all the identified patterns implied at least one movement across the reserve boundaries, our results support the hypothesis that the Larégnère Marine Reserve, part of the South Lagoon Marine Park, could benefit the adjacent fished area through spillover.
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Eiler, John H., Thomas M. Grothues, Joseph A. Dobarro, and Rahul Shome. "Tracking the Movements of Juvenile Chinook Salmon using an Autonomous Underwater Vehicle under Payload Control." Applied Sciences 9, no. 12 (June 20, 2019): 2516. http://dx.doi.org/10.3390/app9122516.

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An autonomous underwater vehicle (AUV) under payload control (PC) was used to map the movements of juvenile Chinook salmon (Oncorhynchus tshawytscha) tagged with acoustic transmitters. After detecting a tag, the AUV deviated from its pre-programmed route and performed a maneuver designed to enhance the location estimate of the fish and to move closer to collect proximal environmental data. Nineteen fish were released into marine waters of southeastern Alaska. Seven missions with concurrent AUV and vessel-based surveys were conducted with two to nine fish present in the area per mission. The AUV was able to repeatedly detect and estimate the location of the fish, even when multiple individuals were present. Although less effective at detecting the fish, location estimates from the vessel-based surveys helped verify the veracity of the AUV data. All of the fish left the area within 48 h of release. Most fish exhibited localized movements (milling behavior) before leaving the area. Dispersal rates calculated for the fish suggest that error associated with the location estimates was minimal. The average movement rate was 0.62 body length per second and was comparable to marine movement rates reported for other Chinook salmon stocks. These results suggest that AUV-based payload control can provide an effective method for mapping the movements of marine fish.
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Young, Michael K. "Generation-scale movement patterns of cutthroat trout (Oncorhynchus clarkii pleuriticus) in a stream network." Canadian Journal of Fisheries and Aquatic Sciences 68, no. 5 (May 2011): 941–51. http://dx.doi.org/10.1139/f2011-023.

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Movements by stream fishes have long been the subject of study and controversy. Although much discussion has focused on what proportion of fish adopt mobility within particular life stages, a larger issue involves the lifetime movements of individuals. I evaluated movements of different sizes and ages of Colorado River cutthroat trout ( Oncorhynchus clarkii pleuriticus ) using a variety of sampling methods from 1996 to 2001 in a 40 km network of main-stem and tributary segments of the North Fork Little Snake River, Wyoming, USA. The probability of movement was related to the period of observation, initial location, and possibly individual growth rate, whereas distance moved was related to fish size and initial location. Furthermore, it appeared that movements by juveniles were mostly downstream, whereas those of older fish were largely upstream. Movement of cutthroat trout in this basin appeared to be driven by ontogenetic changes in habitat use and variation in habitat productivity. Given that this stream network exemplifies the complexity typical of many mountain watersheds, movement as a life history tactic in fishes may be more common than is sometimes recognized.
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Gagen, Charles J., William E. Sharpe, and Robert F. Carline. "Downstream Movement and Mortality of Brook Trout (Salvelinus fontinalis) Exposed to Acidic Episodes in Streams." Canadian Journal of Fisheries and Aquatic Sciences 51, no. 7 (July 1, 1994): 1620–28. http://dx.doi.org/10.1139/f94-162.

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Episodes of low pH and high Al concentration were associated with net downstream movement and increased mortality of ratio-tagged brook trout (Salvelinus fontinalis). We compared movements of 10–15 brook trout in two streams with severe acidic episodes with movements of fish in two streams with less severe acidic episodes (reference streams). Study populations moved downstream hundreds of metres in the streams with more severe acidic episodes (pH <5.0 and >200 μg Al/L). Median downstream movement in spring was 250 and 900 m after 20 d for fish in the more acidic streams; one third of the fish were found dead during this time. We found no net movement and no dead fish in the reference streams. Lower stream discharge in fall studies was associated with less severe acidic episodes, less net movement, and no mortality. Water samples collected at individual fish locations indicated that few fish avoided adverse effects of acidic episodes by remaining in microhabitats with higher pH and lower Al concentration.
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Kennedy, James, Sigurður Þ. Jónsson, Jacob M. Kasper, and Halldór G. Ólafsson. "Movements of female lumpfish (Cyclopterus lumpus) around Iceland." ICES Journal of Marine Science 72, no. 3 (October 3, 2014): 880–89. http://dx.doi.org/10.1093/icesjms/fsu170.

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Abstract Lumpfish (Cyclopterus lumpus) migrate from their offshore feeding areas to the coastal areas of Iceland during March and April where they remain for several months before spawning. Their movements during this time are poorly documented. Using the results of an extensive tag-recapture study (the largest documented for lumpfish) which took place between 2008 and 2014, the movement of female lumpfish around Iceland was investigated and the implications for fisheries management were considered. Of 9710 female fish tagged, 880 were recaptured and 82 of these were recaptured after more than 250 days at liberty (DAL). There was a negative relationship between length at tagging and recapture rate indicating that between 2008 and 2014, the fishery was selecting for smaller fish. Lumpfish showed extensive movements with fish tagged in coastal areas being recaptured up to 587 km from their tagging location and were capable of swimming up to 49 km day−1. Fish were most frequently caught in the area in which they were tagged; however, movement between areas was common. There were indications of homing behaviour with 75% of the fish, which were recaptured after 250 DAL, caught within 80 km of their tagging location. Fish which were tagged offshore before the fishing season showed no clear pattern of where they would be recaptured. These extensive movements and homing behaviour are discussed in the context of the management of the lumpfish fishery.
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Åkesson, Susanne. "Tracking fish movements in the ocean." Trends in Ecology & Evolution 17, no. 2 (February 2002): 56–57. http://dx.doi.org/10.1016/s0169-5347(01)02418-1.

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Adams, Aaron. "Tracking Fish Movements to Inform Conservation." Fisheries 42, no. 8 (August 3, 2017): 416–20. http://dx.doi.org/10.1080/03632415.2017.1342474.

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Dissertations / Theses on the topic "Fish movements"

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Farmer, Nicholas Alexander. "Reef Fish Movements and Marine Reserve Designs." Scholarly Repository, 2009. http://scholarlyrepository.miami.edu/oa_dissertations/243.

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Movement patterns and space use by mature fishes are critical in determining the effectiveness of marine reserves in conserving spawning stock biomass and/or providing biomass to adjacent fisheries through 'spillover'. Home range sizes, activity patterns, site fidelity and habitat preferences were determined for acoustically-tagged snappers and groupers using a rigorously-calibrated array of omnidirectional hydroacoustic receivers deployed in the diverse coral reef environments of a no-take marine reserve (NTMR) network in the Dry Tortugas, Florida. An individual-based localizing tendency model of reef fish movement was parameterized from fine-scale acoustic telemetry data and integrated into a Spatial Management Performance Assessment (SMPA) simulation model for reef fish populations developed to quantitatively evaluate performance of no-take marine reserves in the Dry Tortugas, Florida. Spatially-explicit SMPA models were parameterized for three overfished stocks in the lucrative snapper-grouper fishery: red grouper (Epinephelus morio), black grouper (Mycteroperca bonaci), and mutton snapper (Lutjanus analis). SMPA models were used to evaluate the impacts of a variety of life histories, movement strategies and speeds, and management regulations upon long-term stock sustainability, as measured by annual changes in spawning potential ratio (SPR), and long-term stock productivity, as measured by annual changes in fisheries yield-in-weight per recruit (Yw/R). Under assumptions of constant regional fishing pressure, constant recruitment, and 'realistic' fish movement, SMPA simulation runs from initial conditions in 2000 suggested that by 2014, the Tortugas NTMR network should function to restore red grouper populations to 30% SPR, a Federal management benchmark for sustainability. Mutton snapper were the most mobile of the species investigated; if mutton snapper movements are ignored, their population is predicted to attain 30% SPR by 2014, but given 'realistic' mobility, they may not attain this target by 2021 without additional protections. Black grouper are currently fished at over 9 times sustainable levels. SMPA simulations suggest coupling an increase in minimum size at capture of 20 - 25 cm with NTMR implementation would result in substantial short term losses in yield, but would restore both black grouper and mutton snapper populations to 30% SPR by 2021 and lead to increased long-term yields. Although marine reserve sites are often chosen opportunistically, these findings strongly suggest that reserve designs (e.g. proper sizes and configurations) must take into account the scales and patterns of movement exhibited by the exploited stocks they are intended to protect. These modeling efforts also suggested reserves are not a panacea; in order to promote sustainability for severely depleted stocks, they must be accompanied by an overall reduction in fishing capacity. Although important questions remain concerning the movements of reef fish in response to habitat and density dependent processes, our analyses of realistic reef fish behaviors suggest that the NTMRs of the Dry Tortugas promote substantial gains in SPR, promoting long-term stock sustainability and enhanced egg production. Increased rates of movement diminish these benefits, but may also mitigate short-term losses in yield associated with NTMR establishment.
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Baumgartner, Lee Jason, and n/a. "Effects of weirs on fish movements in the Murray-Darling Basin." University of Canberra. Resource, Environmental & Heritage Sciences, 2005. http://erl.canberra.edu.au./public/adt-AUC20051129.142046.

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Dams and weirs are widely implicated in large-scale declines in both the range and abundance of aquatic fauna. Although many factors are involved, such declines are commonly attributed to the prevention or reduction of migration, reductions in available habitat, alteration of natural flow regimes and changes to physicochemical characteristics. In Australia, studies into the ecological effects of these impacts are limited, and have concentrated mainly on species of recreational and commercial importance. Subsequently, the adverse effects of dams and weirs, and suitable methods of mitigation, remain largely unknown for many other taxa. Therefore, the major aim of this thesis is to investigate the ecological effects of dam and weir construction on previously unstudied migratory assemblages of fish and macroinvertebrates in the Murray-Darling Basin. It is anticipated that the results of these studies will feed back into improved management strategies that help arrest the previously observed declines of aquatic fauna. Initially, fish communities were sampled, by boat electrofishing, from both reference sites and downstream of Balranald and Redbank weirs on the lower reaches of the Murrumbidgee River, Australia. Sampling was stratified over large spatial and temporal scales to gain a comprehensive understanding of species most affected by the presence of these two barriers. In general, the weirs obstructed fish migrations during summer and autumn and many species of small-bodied fish such as Australian smelt, western carp gudgeon, fly-specked hardyhead and crimson-spotted rainbowfish accumulated downstream of Balranald Weir. In addition, downstream accumulations of juveniles of larger-bodied species such as bony herring, common carp and goldfish were also detected. Although many previous studies had either documented or hypothesised that upstream migrating fish accumulate downstream of migration barriers, none attempted to quantify the size of such populations. Therefore, a simple but efficient method to estimate the size of migratory populations was assessed at the Balranald Weir site. The application of two commonly used estimation techniques yielded relatively reliable results for seven species that accumulated downstream of the weir. Population size estimates were greatest for most species during summer and autumn, where accumulations as high as 800 fish per day were detected. The largest calculated population size estimates, in addition to the greatest temporal variation, of any individual species was observed in bony herring. Given the simplicity of the technique and the relative accuracy of population estimates, it was concluded that these methods could easily be applied to other weirs where the size of migratory populations is of particular interest. A study investigating the effects of Yanco Weir on the diets of three migratory percichthyid species, Murray cod, trout cod and golden perch was also conducted. Observed spatial variation in a number of trophic processes strongly implicated Yanco Weir as a major contributor to increased competition among percichthyid species on the Murrumbidgee River. The greater relative abundance of percichthyids from downstream samples, combined with increases in dietary overlap and a greater percentage of empty stomachs, also suggested percichthyids may be significantly affecting the relative abundance of potential prey items such as freshwater prawns and Australian smelt. These significant changes in dietary composition were likely related to migratory behaviour, as these species accumulated downstream of the weir, and could be readily expected at other sites where passage is obstructed. It was suggested that the construction of suitable fish passage facilities would effectively reduce the probability of migratory fish accumulating and, subsequently, potential effects of dams and weirs on trophic processes. Since it was established that dams and weirs of the Murrumbidgee River were significantly affecting migratory fish communities, an innovative but relatively inexpensive fishway design, the Deelder fish lock (after Deelder, 1958), was constructed and assessed for wider application throughout the Murray-Darling Basin. The Deelder lock was effective at mitigating the effects of Balranald Weir by providing passage for a wide range of size classes and species of fish; but importantly, the structure enabled the passage of most species previously observed to accumulate downstream of the structure. Most significant was the ability of the fish lock to pass substantial numbers of small-bodied fish, which were previously not considered migratory, suggesting that these species should be considered when developing options to mitigate the effects of other dams and weirs throughout the Murray-Darling Basin. A significant finding of this study was the realisation that substantially more species and size classes of Australian native fish are migratory than previously thought. Subsequently, it is recommended that, when designing facilities to mitigate the effects of a dam or weir, the structure of the entire migratory community is considered when developing operating parameters. Various options for mitigating the effects of dams and weirs are discussed, but it was concluded that the construction of effective fishways would be the most appropriate means of restoring migration pathways to Australian native fish. A strategic approach for assessing and adaptively mitigating the effects of dams and weirs is presented and discussed.
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Chapman, Matthew R. "Coral reef fish movements and the effectiveness of the Barbados Marine Reserve." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20560.

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This study examined whether movements of fishes across reserve boundaries reduced the difference in density and size of fish between reserve and non-reserve areas. Visual censuses, experimental trapping, habitat measurements and tagging were performed at 10 sites on two nearly contiguous fringing coral reefs at the northern edge of the Barbados Marine Reserve and at 10 sites on the two fringing reefs closest to the boundary in the non-reserve. The visual censuses showed that overall density and size of fishes large enough to be caught in Antillean fish traps were higher on reserve reefs than on non-reserve reefs. The differences in density and size varied considerably among species and were not statistically significant for individual species. In contrast to a previous study, experimental trap catches were not higher in the reserve than in the non-reserve. Visual censuses, trap catches, and their ratio (trappability) were affected by habitat variables. Species mobility, estimated by the maximum distance between locations at which an individual was captured, corrected for the sampling effort at that distance, was highly variable among species (medians 0--116m). For the more mobile species, movements within fringing reefs and between the nearly contiguous reserve reefs was high but extremely rare among reefs separated by expanses of sand and rubble. For this discrete fringing reef system, there is no evidence that movement across the reserve boundary influences the relative density or size of fish between the reserve and non-reserve.
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Chapman, Matthew R. "Coral reef fish movements and the effectiveness of the Barbados Marine Reserve." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0002/MQ44145.pdf.

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Werkman, Marleen. "Network models of live fish movements and disease spread in Scottish aquaculture." Thesis, University of Stirling, 2012. http://hdl.handle.net/1893/6510.

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The Scottish salmon industry is facing challenges in the control of aquatic infectious disease, as is the case in other countries such as Chile and Norway. Disease outbreaks can have an enormous economic impact and possibly affect wild fish populations. Disease transmission in an aquatic environment is complex and there are several transmission routes (vertical transmission, natural reservoirs, hydrodynamic transmission and long-distance movements). Effective control methods such as vaccines are not available in all cases and therefore disease prevention remains a priority. In livestock, epidemiological network models have been proven to be a highly useful tool to investigate the role of different transmission routes on the course of epidemics and have the potential to provide the same utility for aquatic networks. Understanding the complex contact network will result in more effective disease prevention, surveillance systems and control strategies. The aim of this thesis was to investigate the Scottish live fish movement network and its consequences for pathogen transmission between farms in order to develop and optimize control strategies for epidemics. The main objective of chapter 3 was to investigate the effect of different fallowing strategies on the spread of diseases with different transmission properties. A network model was constructed that included both local transmission and long-distance transmission. The basic structure of this network was a ring model where neighbours within a management area could infect each other and non-local transmission occurred at random. The results showed that when long-distance transmission was under reasonable control in comparison with local transmission risk, synchronized fallowing at the management area level was potentially a highly effective tool in the control of infectious diseases. Chapter 4 presents a detailed description of the number of live fish movements and their timing for Atlantic salmon (Salmo salar) in Scottish aquaculture. For this, movement records from 2002 to 2004 were provided by Marine Scotland, Aberdeen. Salmon are anadromous and have a freshwater (FW) and seawater phase (SW). Scottish live fish movements can be divided in FW-FW, FW-SW, SW-SW, SW-FW and “other” movements. The latter are mainly movements from and to research sites. This study showed that the contact structure and timing of live fish movements are seasonal and differ largely between production phases. Disease control measures should take these differences into account to optimize their strategies. In chapter 4, live fish movements were shown to be seasonal; therefore in chapter 5 the main aim was to quantify the effects of seasonality of live fish movements on the course of epidemics. The results showed that the sequence of salmon movements is important for the course of an epidemic. Seasonality is important when local transmission is higher than 0.05 per contact per week and when the movements are not clustered and when movements do not occur in a specific order based on the specific assumptions made in this model. In conclusion, this thesis described the complex live fish movement structure of salmon in Scotland and showed that biosecurity in SW farms is good but could be further improved if all management areas apply synchronized fallowing. The results of this study suggest that biosecurity between freshwater sites could be improved by the application of a system similar to management areas in SW farms.
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Amaral, Susana Cristina Amador Dias. "Permeability of small weirs for upstream fish passage." Doctoral thesis, ISA, 2020. http://hdl.handle.net/10400.5/21202.

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Cathcart, Charles Nathan. "Multi-scale distributions and movements of fish communities in tributaries to the San Juan River." Thesis, Kansas State University, 2014. http://hdl.handle.net/2097/18227.

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Master of Science
Department of Biology
Keith B. Gido
Recognizing habitat needs of fishes across space and time is increasingly important for managing altered stream networks, such as in the Colorado River basin. Recent work on warm-water fishes suggest they might benefit from access to tributaries and their confluences. Fish movements or distributions within tributaries relative to distance from mainstem confluences in two streams with different network types (linear versus dendritic) were investigated in the San Juan River basin, USA. Upstream distance from the San Juan River resulted in species declines (Chaco Wash, linear network) or turnover (McElmo Creek, dendritic network). McElmo Creek movement patterns were likely attributed to spring spawning migrations of flannelmouth sucker (Catostomus latipinnis), spawning aggregations of razorback sucker (Xyrauchen texanus), foraging or refuge seeking by Colorado pikeminnow (Ptychocheilus lucius), and monsoon-related movements for channel catfish (Ictalurus punctatus) and razorback sucker. Razorback sucker and Colorado pikeminnow dominated movements at Chaco Wash, suggesting this backwater-like tributary supplied thermal or current refuge, foraging habitat, or both. Within McElmo Creek, a second study explored the importance of confluences by characterizing habitat use and movements of fishes at the junction of McElmo and Yellow Jacket creeks. Native fish dominated the confluence community composition. The reach downstream of the confluence had consistently higher abundances, species richness, and more frequent detections of tagged fishes relative to upstream reaches. Movement behaviors inferred by detection frequency of tagged fish among reaches surrounding the confluence differed among species. Small flannelmouth sucker (< 300 mm) and roundtail chub (Gila robusta) were commonly detected in Yellow Jacket Creek whereas large flannelmouth sucker (> 300 mm), bluehead sucker (C. discobolus), and channel catfish used McElmo Creek reaches. Monsoons increased McElmo Creek discharge which triggered upstream movements of channel catfish and displaced large flannelmouth sucker and bluehead sucker. Monsoons increased movements between McElmo and Yellow Jacket creeks by roundtail chub, small flannelmouth sucker, and black bullhead (Ameiurus melas). Combined, these two field studies emphasized using links between patterns and processes of tributary fish communities. Conservation, rehabilitation, and maintenance of connectivity and habitat heterogeneity at confluence zones likely can be a localized management strategy with expansive ecosystem effects.
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Titman, L. H. "The effect of exercise on the movements of body fluids in the rainbow trout (Salmo gairdneri)." Thesis, University of East Anglia, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384592.

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Yammouni, Robert. "The circadian control of retinomotor movements in a teleost fish, the glowlight tetra (Hemigrammus erythrozonus)." Thesis, City University London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.412592.

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Turgeon, Katrine. "Home range relocation: How habitat quality, landscape connectivity and density affect movements in coral reef fish." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103631.

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Short-term immigration via home range relocation has important implications for metapopulation dynamics, sustainable harvest and pest control strategies, and conservation in populations experiencing high localized mortality. Despite its importance, no suitable theory is available to predict immigration in response to harvest near an adjacent protected area. There is also little information about the factors that influence the magnitude of immigration. I developed a compensatory immigration model to predict the effect of harvesting on immigration under different assumptions about the factors limiting immigration. The model predicts that immigration from protected areas can contribute importantly to total yield and population recovery in the harvest area and can strongly affect demography in the protected area. Immigration and total yield can show complex non-linear relationships with harvesting as the size of the protected area, initial rate of replacement, mobility and behavioral interactions vary. I carried out field experiments to validate the model and assess the relative influence of limiting factors to immigration (i.e. population size in the protected area, the relative habitat quality and functional connectivity between the harvest and protected area). I used longfin (Stegastes dienaceus) and dusky damselfish (S. adustus) as a model system. I first examined functional connectivity by translocating damselfish to investigate which habitat or social features represent a barrier to movement during homing. Small sand gaps constitute a partial barrier to movement, but the effect of sand gap width varies with reef configuration, and fish minimize travel over conspecific territories. I carried out replicated, experimental, incremental reduction of damselfish populations to examine the mechanisms behind home range relocation at the scale of the territory and to evaluate immigration at the landscape scale. At the territory scale, the probability that a territory would be recolonized decreases with local density. Territories tend to be reoccupied by individuals of the same species, sex and size as the original occupant, but territories occupied by larger individuals are more likely to be recolonized. At the landscape scale, models assuming a constant but partial replacement of removed individuals predict immigration much better than models that include either no replacement or complete replacement. In several sites, the best fitting model also included parameters describing density dependence that changed in direction and magnitude with cumulative harvest. Total yield and the proportion of removed individuals replaced by immigrants were correlated with the combined effects of relative habitat quality and connectivity of replicate sites. Overall, my thesis proposes and tests a new compensatory immigration model to predict immigration from protected to harvested areas and suggests that variation in mobility, habitat quality, functional connectivity and behavioral interactions must be considered when predicting the effects of immigration in a harvesting context on metapopulation dynamics, sustainable harvest and conservation.
Dans les populations qui sont soumises à une forte mortalité locale, l'immigration à court terme - via la relocalisation du domaine vital - a d'importantes implications pour la dynamique des métapopulations, l'exploitation soutenable des ressources, la lutte contre les espèces introduites et invasives et la conservation. Malgré son importance, il n'existe pas de théorie prédisant l'immigration dans une zone exploitée à partir d'une zone protégée adjacente. Il existe aussi très peu d'information sur les facteurs influençant l'intensité de l'immigration. J'ai développé un modèle d'immigration compensatoire afin de prédire les effets d'une réduction locale de la densité sur l'immigration en utilisant des scénarios hypothétiques variant dans l'inclusion de facteurs limitant. Le modèle prédit que l'immigration peut contribuer à la récolte totale et à la récupération des populations exploitées et peut affecter la démographie dans la zone protégée. L'immigration et la récolte totale sont reliées de façon complexe et non-linéaire avec l'exploitation cumulative en relation avec la taille de l'aire protégée, le taux initial de remplacement des individus récoltés, la mobilité et les interactions comportementales. Des expériences sur le terrain m'ont permis de valider le modèle et d'estimer l'influence relative de facteurs limitant à l'immigration (i.e. la taille de la population dans la zone protégée, la qualité de l'habitat relative et la connectivité fonctionnelle entre la zone exploitée et la zone protégée). J'ai utilisé la demoiselle noire (Stegastes dienaceus) et la demoiselle brune (S. adustus) et leur habitat comme système modèle. J'ai examiné en premier lieu la connectivité fonctionnelle en relocalisant des demoiselles afin d'investiguer quelles caractéristiques de l'habitat ou caractéristiques sociales peuvent représenter une barrière au mouvement lors du comportement de retour au territoire (ang. « homing »). Les petites étendues de sable constituent une barrière partielle au mouvement mais l'effet de la taille de l'étendue de sable varie en fonction de la configuration des récifs. Les poissons minimisent les mouvements au-dessus des territoires de leur conspécifiques. J'ai également entrepris une réduction expérimentale, incrémentée et répliquée de populations de demoiselles qui a servi à examiner les mécanismes régissant la relocalisation du domaine vital à l'échelle du territoire et l'immigration à l'échelle du paysage. À l'échelle du territoire, la probabilité qu'un territoire soit recolonisé diminue avec une réduction de la densité. Les territoires ont tendance à être recolonisés par des individus de la même espèce, du même sexe et de taille comparable à celle de l'occupant original. Les territoires occupés initialement par les individus les plus gros ont une probabilité plus forte d'être recolonisés. À l'échelle du paysage, les modèles qui assument un remplacement constant mais partiel des individus récoltés ont un meilleur support statistique que les modèles incluant soit un remplacement incomplet ou une absence de remplacement. Dans plusieurs sites où la densité à été manipulée, le modèle ayant le meilleur support statistique incluait également des paramètres modélisant de la densité dépendance (i.e. changement de direction et d'intensité en relation avec la récolte cumulative). La récolte totale et la proportion des individus récoltés qui étaient remplacés par les immigrants étaient corrélées avec l'effet combiné de la qualité de l'habitat et de la connectivité fonctionnelle. En conclusion, ma thèse propose et test un modèle d'immigration compensatoire prédisant l'immigration d'individus habitant les aires protégées vers les zones exploitées. Ce modèle considère la variation de la mobilité, la qualité de l'habitat, la connectivité fonctionnelle et les interactions comportementales afin de prédire les effets de l'immigration dans un contexte d'exploitation soutenable et de conservation à l'échelle de la métapopulation.
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Books on the topic "Fish movements"

1

Ridder, William P. Movements of radio-tagged Arctic grayling in the Tok River drainage. Anchorage: Alaska Dept. of Fish and Game, Division of Sport Fish, Research and Technical Services, 1995.

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Ridder, William P. Movements of radio-tagged Arctic grayling in the Tok River drainage. Anchorage: Alaska Dept. of Fish and Game, Division of Sport Fish, Research and Technical Services, 1995.

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Evenson, Matthew J. Seasonal movements of radio-implanted burbot in the Tanana River drainage. Anchorage, Alaska: Alaska Dept. of Fish and Game, Division of Sport Fish, 1993.

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Roach, Stafford M. Movements and distributions of radio-tagged northern pike in Harding Lake. Anchorage, Alaska: Alaska Dept. of Fish and Game, Division of Sport Fish, 1993.

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Barry, Morton, and Ramsay Jeff, eds. Comrade Fish: Memories of a Motswana in the ANC underground. Gaborone, Botswana: Pula Press, 1999.

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Brannon, E. L. Movements of white sturgeon in Lake Roosevelt : final report 1988-1991. Portland, OR: The Division, 1992.

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Rutz, David. Movements, food availability and stomach contents of northern pike in selected Susitna River drainages, 1996-1997. Anchorage: Alaska Dept. of Fish and Game, Division of Sport Fish, Research and Technical Services, 1999.

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Roach, Stafford M. Site fidelity, dispersal, and movements of radio-implanted northern pike in Minto Lakes, 1995-1997. Anchorage: Alaska Dept. of Fish and Game, Division of Sport Fish, Research and Technical Services, 1998.

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Rutz, David S. Seasonal movements, age and size statistics, and food habits of upper Cook Inlet northern pike during 1994 and 1995. Anchorage: Alaska Dept. of Fish and Game, Division of Sport Fish, Research and Technical Services, 1996.

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Adam, M. Shiham. Use of neural networks with advection-diffusion-reaction models to estimate large-scale movements of Skipjack tuna from tagging data. Honolulu, Hawaii: Pelagic Fisheries Research Program, University of Hawaii at Manoa, 2004.

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Book chapters on the topic "Fish movements"

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Videler, John J. "Fish kinematics: swimming movements stride by stride." In Fish Swimming, 113–37. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1580-3_6.

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Lopez, Alan Robert. "Fish Sauce and Plums: Teaching Tactics." In Buddhist Revivalist Movements, 33–57. New York: Palgrave Macmillan US, 2016. http://dx.doi.org/10.1057/978-1-137-54086-7_3.

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Næsje, Tor F., Amber-Robyn Childs, Paul D. Cowley, Warren M. Potts, Eva B. Thorstad, and Finn Økland. "Movements of undersized spotted grunter (Pomadasys commersonnii) in the Great Fish Estuary, South Africa: implications for fisheries management." In Developments in Fish Telemetry, 25–34. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6237-7_4.

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Smith, I. P., K. J. Collins, and A. C. Jensen. "Electromagnetic telemetry of lobster (Homarus gammarus (L.)) movements and activity: preliminary results." In Advances in Invertebrates and Fish Telemetry, 133–41. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5090-3_17.

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Teixeira, Amílcar, and Rui M. V. Cortes. "PIT telemetry as a method to study the habitat requirements of fish populations: application to native and stocked trout movements." In Developments in Fish Telemetry, 171–85. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6237-7_17.

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Josse, Erwan, Pascal Bach, and Laurent Dagorn. "Simultaneous observations of tuna movements and their prey by sonic tracking and acoustic surveys." In Advances in Invertebrates and Fish Telemetry, 61–69. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5090-3_8.

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Ekeberg, Örjan, and Ranu Jung. "Simulation of the Spinal Circuits Controlling Swimming Movements in Fish." In Biomechanics and Neural Control of Posture and Movement, 221–30. New York, NY: Springer New York, 2000. http://dx.doi.org/10.1007/978-1-4612-2104-3_15.

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Payne, John, Kelly Andrews, Cedar Chittenden, Glenn Crossin, Fred Goetz, Scott Hinch, Phil Levin, et al. "Tracking Fish Movements and Survival on the Northeast Pacific Shelf." In Life in the World's Oceans, 267–90. Oxford, UK: Wiley-Blackwell, 2010. http://dx.doi.org/10.1002/9781444325508.ch14.

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Lauder, George V., and James L. Tangorra. "Fish Locomotion: Biology and Robotics of Body and Fin-Based Movements." In Springer Tracts in Mechanical Engineering, 25–49. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-46870-8_2.

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Clough, Stuart, and William R. C. Beaumont. "Use of miniature radio-transmitters to track the movements of dace, Leuciscus leuciscus (L.) in the River Frome, Dorset." In Advances in Invertebrates and Fish Telemetry, 89–97. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5090-3_11.

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Conference papers on the topic "Fish movements"

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Asgeirsson, Saethor, and Runar Unnthorsson. "Fin Drive Propulsion." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-89606.

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This paper presents the results of a study, which aimed to understand and evaluate the locomotion of Atlantic salmon and Arctic char under three different swimming conditions, slow, medium and fast swimming. A Fourier-series based numerical model that describes the swimming mode for each condition is represented. The numerical model is based on a video analysis of swimming fish. A video recording system was used to record the movement of two fish species under different swimming conditions in a swimming tunnel. The movements of eleven points on the fishes were tracked from the video recordings and logged. The movements of each point were then analyzed in Matlab and a 2nd degree Fourier model constructed to describe the motion.
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Lee, Chun Woo, Gun Ho Lee, Moo Youl Choe, Dae Ho Song, and Seyed Abbas Hosseini. "Dynamic Behavior of a Submersible Fish Cage." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79328.

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Fish cage system is influenced by various external forces from the ocean environments, and the movements and the deformation of the cage by these external forces affect the safety of the cage itself, as well as that of the cultured organisms. In this research, submersible fish cage was designed to endure less physical stress by harsh sea conditions, and to keep the organisms in safer life by reducing the stress through exposure and movement. The submersible cage system consists of netting, mooring ropes, floating collar, floats, sinkers and anchors. Mass-spring model was used to predict the dynamic response of the cage subjected to tidal currents and waves. Computer simulation was performed for fish cage at the surface and submerged positions to investigate the dynamics of the motion and to calculate mooring line tensions. As expected, the average tension value of the mooring line for the submerged cage were less, being 64% of what we got in the case of surface position under the current velocity of 0.5 m/s combined with the waves. As the waves was used in combination with the current velocity of 1.0 m/s, the average tensile load for the submerged cage showed 85% of the value for the floating cage. The simulation results provide an improved understanding of the dynamic behaviors of the structure and their capability to withstand in subject to sever environmental loadings, and also valuable information on the optimized design of the cage system exposed to the open ocean environmental factors.
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Lee, Chun-Woo, Hyung-Seok Kim, Gun-Ho Lee, and Kwi-Yeon Koo. "Dynamic Simulation for a Fish Cage System." In ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2005. http://dx.doi.org/10.1115/omae2005-67076.

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This paper presents a physically based calculation model to simulate the behavior of a cage system considered as moored flexible structures. The flexible structure described is composed of a network of mass points and springs, the behavior of which is calculated using the implicit integration method of the fundamental law of dynamics. Also, to increase the accuracy of calculations, the reduction ratio of flow speed due to shielding effects is acquired by using the flume tank experiments. By applying the reduction ratio of flow speed to the numerical calculation, the calculation accuracy was increased, and it was found that the result of the simulated cage movements was very close to that of the model cage. In addition, the dynamic behavior of an actual fish cage system under the current and waves was simulated.
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Babu, Mannam Naga Praveen, and P. Krishnankutty. "Numerical Study on Fish Tail Shaped Rudder for Improved Ship Maneuvering." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41613.

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Maneuvering is an important safety aspect in ship operations so as to avoid accident of ships in seaways and more critically in the restricted area of waterways. IMO stipulates many safety regulations on ship maneuverability in open sea conditions and the local authorities may have additional regulations in harbor, canal and other restricted waterways. The effectiveness of rudder has substantial influence on the maneuverability of a ship. It is often difficult to increase the size of the rudder, to get higher control force/moment, due to the geometrical restrictions of the aft aperture of the ship. A hydrodynamically efficient rudder section addresses this problem to some extent. Most of the fishes maneuver efficiently using their tail. The fish tail functions almost similar to that of a rudder for its movements and navigation. In general, ship with flap rudders and fish tail shaped rudders perform maneuverability better compare to a ship fitted with a conventional rudder having the same underwater surface area. In fishtail shaped rudders, the shape and movements promote good flow patterns in a wider range of rudder angles. In a fish tail, the trailing edge accelerates the flow and recovers lift over the aft section of the rudder. This results in the generation of a higher lift and thus helps in reducing the turning diameter of the vessel. The studies carried out with two rudder types — conventional rudder and fish tail shaped rudder — are presented in this paper. Numerical simulations are performed on these two rudders, both having the same surface area, for different rudder angles in free stream condition. The lift force generated by the fish tail shaped rudder is found to be higher than the conventional rudder. The flow across and the hydrodynamic forces acting on the sections are determined using a commercial CFD code. The effectiveness of the fishtail rudder is also brought out from the numerically simulated turning maneuver of a chosen ship fitted with the same rudder.
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Kudriavtsev, Vladimir, Satoyuki Kawano, T. Isoyama, H. Arai, T. Yambe, Y. Abe, K. Imachi, S. Nitta, and H. Hashimoto. "Numerical Study on Fluid-Structure Interaction in VFP Artificial Heart With Jelly-Fish Valve." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45114.

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We analyze sinusoidal pulsating flow that develops in the vibrating flow pump (VFP) artificial heart casing. In such system flow is induced by the axial movements of the vibrating pipe. Pipe is capped with the flexible thin disk that is called jelly-fish valve (JFV). Valve is opened during the downward pipe motion and is closed during the upward motion. Valve movement is very similar with the movement of falcon wings. It is due to the pipe motion and happens under the influence of fluid inertial, JFV spring, fluid shear and pressure forces. Authors utilized industrial strength CFD-ACE+/FEMSTRESS software package from CFDRC to analyze dynamic fluid-structure interaction, flow velocity field and time-dependent vorticity distribution. It was shown in the previous studies that blood hemolysis is closely correlated with the maximum values of vorticity fianction ω. In the paper we analyzed valve deformation, related flowfield and vorticity at different transient flow conditions. We can clearly conclude that dynamic formulation allows us to estimate and pinpoint with much greater accuracy the local maxima in vorticity. Vorticity peaks in two areas. First zone is at valve/pipe throat and second zone is at the casing throat. Vorticity is highest at the casing wall, thus pointing the direction for design improvements. Reduction in JFV stiffness helps to open valve wider and to reduce flow vorticity in its vicinity. These are work-in-progress results and additional studies will follow.
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Zeinoddini Meymand, S., G. R. Vosoughi, M. Farshchi, and A. Nemati. "Hardware in the Loop Simulation and Analysis of a Model of Fish Robotic System." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-24607.

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In the present study, an adaptive sliding mode control method was employed to control a fish robotic system using hardware in the loop methodology. Up to now, few researches have focused on autonomous control of fish robot in dynamic environments which may be the result of difficulties in modeling of hydrodynamic effects on fish robot. Therefore, following the introduction of the nonlinear model for the robot, elongated body theory, suggested by Lighthill, was used to analyze fish movements. Then, kinematics control to track desired trajectories was designed for under-actuated model of robot. Adaptive sliding mode controller, capable of adapting according to changes and uncertainties, was designed and implemented. Using a fabricated stand, experimental tests were performed using hardware in the loop simulation. Computer simulations accompanied by experimental results verify that the presented adaptive controller has two main advantages: first, they make a robot versatile and capable of moving in unknown environments because of system robustness under changes and uncertainties of parameters. Second, they leave out the need for expensive and time consuming experiments to recognize system model and reduce operations for final tuning of controller.
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Nelson, Stephen T., Kevin A. Rey, David G. Tingey, John H. McBride, and Ryan Shurtliff. "A 13,000 YEAR MULTI-PROXY CLIMATE RECORD FROM THE FISH LAKE PLATEAU OF UTAH WITH EMPHASIS ON THE CONDITIONS LEADING TO LARGE MASS MOVEMENTS." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-284188.

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Kalwar, Ghulam Murtaza, Saad Hamid, Sharat Kishore, Abdulrahman A. Aljughayman, Nahr M. Abulhamayel, and Nasser F. Qahtani. "E-Line Powered Mechanical Tool Technologies Provide Efficient, Reduced Risk Solutions in Complex Intervention Operations." In International Petroleum Technology Conference. IPTC, 2021. http://dx.doi.org/10.2523/iptc-21393-ms.

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Abstract Latest developments in drilling and wellbore completion technologies lead to even more complex intervention conditions. Conventional techniques using slickline or coiled tubing are ill-suited for many of these conditions due to operational complexity, effectiveness, or efficiency. Powered mechanical intervention with e-line alleviates some of these limitations and opens lower risk intervention applications. This paper details two applications: a fishing operation that could not be performed with slickline or coiled tubing and a completion disk rupturing operation where the operator saved 1.5 days. Powered mechanical intervention is a combination of complementary technologies that enable "intelligently controlled intervention operations." Downhole tractors enable access into complex well trajectories. Surface-controlled, powered anchors coupled with a linear actuator can generate very high axial forces with precise and real-time downhole measurements of forces and displacement. Operating parameters can be monitored in real time to prevent damage to damaged completion components. Uncontrolled tool movement due to high differential pressures is prevented. Such precise control of downhole forces and movements enables complex intervention operations previously done with coiled tubing or a full workover. The first application example details a fishing operation. A retrievable plug along with its setting tool was stuck in the production tubing after prematurely setting. Multiple fishing attempts with heavy-duty slickline jars were unsuccessful. Coiled tubing was not deployed as its lack of force precision could have generated excessive downhole force and sheared the fish. An e-line-conveyed linear actuator tool was used to latch onto the fish with the help of an overshot and was released from the retrievable plugs by application of optimal, highly controlled, linear force to minimize damage. The second case involved rupturing a ceramic disk installed in completion. High differential pressure across the disk restricted the use of slickline which could have been damaged due to the high expected differential pressure. The alternative with coiled tubing milling requires a larger personnel and equipment footprint in addition to the associated HSE exposure and lack of efficiency. An innovative technique using the e-line linear actuator and a pointed chisel was devised and deployed. Real-time feedback from the tool sensors gave confirmation of the rupturing of various components of the ceramic disk, and the anchors eliminated any tool movement during pressure equalization. The operation was completed in 12 hours, resulting in time savings of almost 36 hours. An e-line intervention is a low risk, effective, and efficient solution while having an accurate depth and positioning, coupled with controlled downhole operations. With precise control of operating parameters, operations which were previously possible with coiled tubing or workover can be done on e-line more efficiently.
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Nguyen, Nhat D. M., Kien N. Huynh, Nhan N. Vo, and Tuan Van Pham. "Fish detection and movement tracking." In 2015 International Conference on Advanced Technologies for Communications (ATC). IEEE, 2015. http://dx.doi.org/10.1109/atc.2015.7388376.

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Keller, Robert. "Fish Movement and Weir Drown-Out." In World Environmental and Water Resources Congress 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41114(371)156.

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Reports on the topic "Fish movements"

1

Claisse, Jeremy T., Daniel J. Pondella, Chelsea M. Williams, Laurel A. Zahn, and Jonathan P. Williams. Impacts of electromagnetic fields associated with marine and hydrokinetic surrogate technologies on fish movements and behaviors. Office of Scientific and Technical Information (OSTI), September 2015. http://dx.doi.org/10.2172/1229779.

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Zydlewski, Gayle B., and Sean Casey. Evaluation of Fish Movements, Migration Patterns and Populations Abundance with Streamwidth PIT Tag Interrogation Systems, Final Report 2002. Office of Scientific and Technical Information (OSTI), February 2003. http://dx.doi.org/10.2172/828278.

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Zydlewski, Gayle, Christiane Winter, and Dee McClanahan. Evaluation of Fish Movements, Migration Patterns, and Population Abundance with Streamwidth PIT Tag Interrogation Systems, Final Report 2002. Office of Scientific and Technical Information (OSTI), February 2003. http://dx.doi.org/10.2172/963051.

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Neitzel, D. A., S. L. Blanton, C. Scott Abernethy, and D. S. Daly. Movement of Fall Chinook Salmon Fry Oncorhynchus Tshawytscha : A Comparison of Approach Angles for Fish Bypass in a Modular Rotary Drum Fish Screen. Office of Scientific and Technical Information (OSTI), August 1996. http://dx.doi.org/10.2172/544750.

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Fausch, Kurt D., Bruce E. Rieman, Michael Young, and Jason B. Dunham. Strategies for conserving native salmonid populations at risk from nonnative fish invasions: tradeoffs in using barriers to upstream movement. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2006. http://dx.doi.org/10.2737/rmrs-gtr-174.

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Abernethy, C. Scott, Duane A. Neitzel, and William V. Mavros. Movement and Injury Rates for Three Life Stages of Spring Chinook Salmon Oncorhynchus Tshawytscha : A Comparison of Submerged Orifices and an Overflow Weir for Fish Bypass in a Modular Rotary Drum Fish Screen : Annual Report 1995. Office of Scientific and Technical Information (OSTI), March 1996. http://dx.doi.org/10.2172/279689.

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