Relevant bibliographies by topics / Migrating fish

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
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Academic literature on the topic 'Migrating fish'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Migrating fish"

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Hannesson, Rögnvaldur. "Sharing a Migrating Fish Stock." Marine Resource Economics 28, no. 1 (January 2013): 1–17. http://dx.doi.org/10.5950/0738-1360-28.1.1.

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Shroff, Siddharth A., Mohammad Humaam Ansari, and Naman Agarwal. "Migrating fish bone in neck." International Journal of Otorhinolaryngology and Head and Neck Surgery 5, no. 4 (June 27, 2019): 1104. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20192739.

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<p>Foreign body ingestion is very common in Asian population among which most common ingested foreign body is fish bone (FB). It usually presents with foreign body sensation, odynophagia or pricking sensation during deglutition. Usually diagnosis is achieved on basis of lateral radiograph of neck, videolaryngoscopy and oesophagoscopy. Sometimes FB migrates extraluminally and causes deep neck abscess, vascular complications including vascular esophageal fistula, puncture of carotid artery, thromboembolism, thyroid gland retention. Here we report a case where fish bone migrated extraluminally into neck piercing the carotid sheath and jarred between external carotid artery and internal carotid artery. Initial laryngoscopy and oesophagoscopy were both negative. Urgent Surgical exploration was planned due to severe pain and discomfort to patient and 4 cm fish bone was retrieved. Fish bone ingestion is the most common ingested foreign body encountered in otorhinolaryngology practice. Fish bones are most commonly impacted at base of tongue, palatine tonsil or vallecula. Sometimes fish bone extraluminally and causes various complications. Extraluminal migration of fish bone is very rare and very few cases have been reported and the only case reported from our region. </p>
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Johnson, Scott W., and Jonathan Heifetz. "Osmoregulatory Ability of Wild Coho Salmon (Oncorhynchus kisutch) and Dolly Varden Char (Salvelinus malma) Smolts." Canadian Journal of Fisheries and Aquatic Sciences 45, no. 8 (August 1, 1988): 1487–90. http://dx.doi.org/10.1139/f88-174.

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Osmoregulatory ability of wild coho salmon (Oncorhynchus kisutch) and Dolly Varden char (Salvelinus malma) smolts migrating from a small stream in southeastern Alaska was assessed by plasma Na+ levels after a 24-h seawater challenge. Osmoregulatory ability of coho salmon was unaffected by time of out-migration, water temperature, and fish size. Osmoregulatory ability of Dolly Varden char was apparently affected by time of out-migration or water temperature but not by fish size. Char migrating in the first half of the migration period, when water temperature was usually < 8.0 °C, had lower plasma Na+ levels than did char migrating in the second half when temperatures were [Formula: see text]. A plasma Na+ threshold of 170 mmol∙L−1, used by others to separate smolts from silvery parr, indicated that 70% of the coho salmon and 80% of the Dolly Varden char we sampled were physiologically prepared to enter seawater. The remaining fish may have suffered some level of osmoregulatory stress.
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Irvine, J. R., and B. R. Ward. "Patterns of Timing and Size of Wild Coho Salmon (Oncorhynchus kisutch) Smolts Migrating from the Keogh River Watershed on Northern Vancouver Island." Canadian Journal of Fisheries and Aquatic Sciences 46, no. 7 (July 1, 1989): 1086–94. http://dx.doi.org/10.1139/f89-140.

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Coho salmon (Oncorhynchus kisutch) smolts leaving the Keogh River and its tributaries demonstrated consistent patterns in their timing and size. An initial early peak in the mean size of migrating smolts occurred several weeks before the peak in their timing, and in several years when smolt migration was monitored until July, a late peak in size occurred near the end of the smolt migration. Changes in the mean size of smolts were not related to their origin within the watershed, and varying age compositions were only partially responsible for the two peaks in mean size. Fish overwintering in tributary lakes grew faster than fish overwintering in tributary streams. A greater proportion of lake-origin smolts migrated to sea after only 1 yr in freshwater than stream-origin smolts. It appears that fish that wait until their second spring to smoltify are among the first to emigrate that spring. These relatively large 2 + smolts, combined with fast growing 1 + smolts that leave early during their first spring, cause the first peak in size. The small numbers of large smolts leaving the Keogh River at the ends of several of the smolt runs apparently left then because of minor flow increases in the river. As has been found with releases of coho smolts from nearby hatcheries, fish that left the Keogh River early in the smolt run generally had a more northerly marine catch distribution than later migrating smolts. A greater proportion of fish migrating to sea late in the smolt run were caught in the fishery than fish migrating early. Additional work examining the marine survival of early and late migrating wild smolts is recommended to enable detailed comparisons to be made between the optimal timing and size of wild and hatchery smolts.
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Kulbachnyi, S. E., N. V. Kolpakov, and O. A. Kudrevskyi. "First results of acoustic tags using for studies of migrations of siberian taimen Huho taimen (Salmonidae) in the Tugur River basin (northwestern Okhotsk Sea)." Izvestiya TINRO 200, no. 3 (October 3, 2020): 671–87. http://dx.doi.org/10.26428/1606-9919-2020-200-671-687.

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Method of acoustic tagging of large-sized fish in a medium river is successfully tested for the case of siberian taimen Hucho taimen in the Tugur River. Algorithm of fish anesthesia and acoustic tag input into its body cavity is developed. For successful tagging, total duration of the process, including anesthesia, should not exceed 5 minutes. The best results of tagging are obtained for fish with a body length of 110–130 cm, which tolerate anesthesia easily. In 2017–2019, 25 out of 29 tagged fish were registered by acoustic equipment that indicates high efficiency of the method (86.2 %). Distance from the release point to the point of tag registration varied from 0.2 to 39.8 km. Some fish crossed almost completely the buoy-controlled section of the river that indicates a rather high migration potential of siberian taimen. On the background of high individual diversity of migration activity, two principally different behavioral strategies are distinguished — «residents» staying in one place up to 2 months and «nomads» migrating to a distance up to 30 km per day. The radius of taimen migration increases usually in May and September and decreases in August. The seasonal increasing is associated with feeding migrations: taimen feed on downstream juveniles of chum salmon Oncorhynchus keta and prespawning minnows Rhynchocypris lagowskii in May and on chum adults migrating to spawning grounds in September. During twilight and at night, the migrations are usually more active, but they are less visible and shorter in the morning and afternoon. Correspondingly, the main feeding of taimen is assumed in the twilight and dark time, whereas a supporting feeding in the daytime.
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Kennedy, Benjamen M., William L. Gale, and Kenneth G. Ostrand. "Relationship between smolt gill Na+, K+ ATPase activity and migration timing to avian predation risk of steelhead trout (Oncorhynchus mykiss) in a large estuary." Canadian Journal of Fisheries and Aquatic Sciences 64, no. 11 (November 1, 2007): 1506–16. http://dx.doi.org/10.1139/f07-117.

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We examined avian predation risk of juvenile steelhead trout (Oncorhynchus mykiss) migrating through the Columbia River Estuary in relation to their osmoregulatory physiology, body length, rearing conditions (hatchery or wild), migration timing, and migration year. From 2003 to 2006, mean gill Na+, K+ ATPase activity of migrating wild steelhead was greater than hatchery steelhead. Hatchery steelhead were always longer than wild steelhead. Wild steelhead never had higher plasma [Na+] or osmolality levels than hatchery fish after seawater challenge trials conducted in 2004, 2005, and 2006. More passive integrated transponder (PIT) tags from hatchery fish (19%; 126 of 678 fish) were detected on East Sand Island among bird nesting colonies than PIT tags of wild fish (14%; 70 of 509 fish), presumably consumed by birds. As gill Na+, K+ ATPase activity and migration date within a year increased, the probability of an individual fish being eaten by an avian predator decreased. Length, rear type, and year were not related to predation risk. These results show that physiology and migration timing of juvenile steelhead play an important role in a migrant’s risk to avian predation within an estuary.
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Kotecha, Jay Kantilal. "Fish Bone Migrating into the Thyroid Gland." International Journal of Head and Neck Surgery 5, no. 1 (2014): 42–44. http://dx.doi.org/10.5005/jp-journals-10001-1179.

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ABSTRACT Many cases have been reported in the literature about foreign bodies lodged in the hypopharynx. A foreign body penetrating the esophagus and migrating into the soft tissue of neck is a rare phenomenon. We report a case of 35 years male who ingested a fish bone which then migrated into left lobe of thyroid and the role of imaging in its detection and management. How to cite this article Kotecha JK. Fish Bone migrating into the Thyroid Gland. Int J Head Neck Surg 2014;5(1):42-44.
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Manhard, Christopher V., John E. Joyce, and Anthony J. Gharrett. "Evolution of phenology in a salmonid population: a potential adaptive response to climate change." Canadian Journal of Fisheries and Aquatic Sciences 74, no. 10 (October 2017): 1519–27. http://dx.doi.org/10.1139/cjfas-2017-0028.

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Accumulating evidence has indicated that many fish populations are responding to climate change through shifts in migration time, but genetic data identifying the role of evolution in these shifts are rare. One of the first demonstrations of evolution of migration time was produced by monitoring allozyme alleles that were experimentally manipulated to genetically mark late-migrating pink salmon (Oncorhynchus gorbuscha). Here, we extend that research by using observations of the marker alleles in fry to demonstrate that these changes in migration time were caused by directional selection against the late-migrating phenotype during the oceanic phase of the salmonid life cycle. The selective event, which appeared to be driven by early vernal warming of the nearshore marine environment and consequent decreased survival of late-migrating fry relative to early-migrating fry, decreased the late-migrating phenotype from more than 50% to approximately 10% of the total fry abundance in only one generation. These demographic changes have persisted over the subsequent 13 generations and suggest that a larger trend toward earlier migration time in this population may reflect adaptation to warming sea-surface temperatures.
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Twardek, W. M., A. Ekström, E. J. Eliason, R. J. Lennox, E. Tuononen, A. E. I. Abrams, A. L. Jeanson, and S. J. Cooke. "Field assessments of heart rate dynamics during spawning migration of wild and hatchery-reared Chinook salmon." Philosophical Transactions of the Royal Society B: Biological Sciences 376, no. 1830 (June 14, 2021): 20200214. http://dx.doi.org/10.1098/rstb.2020.0214.

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During spawning, adult Pacific salmonids ( Oncorhynchus spp . ) complete challenging upriver migrations during which energy and oxygen delivery must be partitioned into activities such as locomotion, maturation and spawning behaviours under the constraints of an individual's cardiac capacity. To advance our understanding of cardiac function in free-swimming fishes, we implanted migrating adult Chinook salmon ( Oncorhynchus tshawytscha ) collected near the mouth of the Sydenham River, Ontario, with heart rate ( f H ) biologgers that recorded f H every 3 min until these semelparous fish expired on spawning grounds several days later. Fundamental aspects of cardiac function were quantified, including resting, routine and maximum f H , as well as scope for f H (maximum−resting f H ). Predictors of f H were explored using generalized least-squares regression, including water temperature, discharge, fish size and fish origin (wild versus hatchery). Heart rate was positively correlated with water temperature, which aligned closely with daily and seasonal shifts. Wild fish had slower resting heart rates than hatchery fish, which led to significantly higher scope for f H . Our findings suggest that wild salmon may have better cardiac capacity during migration than hatchery fish, potentially promoting migration success in wild fish. This article is part of the theme issue ‘Measuring physiology in free-living animals (Part I)’.
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Jonsson, B., M. Jonsson, and N. Jonsson. "Influences of migration phenology on survival are size-dependent in juvenile Atlantic salmon (Salmo salar)." Canadian Journal of Zoology 95, no. 8 (August 2017): 581–87. http://dx.doi.org/10.1139/cjz-2016-0136.

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Long-distance migratory species can reduce mortality risks by synchronizing the migration event and create confusion by swamping predators with high densities. To reduce confusion, predators are known to primarily select aberrant prey. We hypothesized that at the start of their sea sojourn, particularly small and large Atlantic salmon (Salmo salar L., 1758) would spread the risk by also migrating at other times of the year. Based on data from the Norwegian river Imsa between 1976 and 2015, we found that juveniles, 14–19 cm in total length, started their sea sojourn during a short period between late April and early June. However, more than 20% of fish 13 cm or shorter migrated downstream between October and March, whereas 55% of fish 20 cm or longer migrated downstream between July and September. The regular-sized, spring-migrating juveniles had 2–3 times higher survival at sea than similar-sized conspecifics migrating to sea at other times of the year. The survival at sea for smaller juveniles was not improved by migration in spring relative to winter, and the survival of the largest juveniles was similar in spring and summer. Thus, the migration phenology appears adapted to survival in a high-risk environment by changing the timing according to their sizes.
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Dissertations / Theses on the topic "Migrating fish"

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Lindmark, Elianne M. "Flow design for migrating fish /." Luleå : Division of Fluid Mechanics, Department of Applied Physics and Mechanical Engineering, Luleå University of Technology, 2008. http://epubl.luth.se/1402-1544/2008/55.

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Lindmark, Elianne. "Flow design for migrating fish." Doctoral thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-25698.

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The utilization of rivers for hydropower production leads to problems for migrating fish, such as Atlantic salmon (Salmo salar) and sea trout (Salmo trutta). Both salmon and trout reproduce in fresh water, but spend their adult years at sea. To overcome man-made obstructions to and from the spawning grounds the fish needs help. Fishways for upstream migrating fish is an old technique; however the efficiency is often low due to inefficient attraction water. The upstream migrating fish are attracted to high water velocities and often approach the dominating flow from the turbine outlet instead of entering the fishway. For the downstream migrating smolt (young fish) the only way to pass a power plant is often via the turbines, with a high mortality as a result. The smolt follow the main flow in the river on the way downstream avoiding high accelerations or retardations. This thesis covers investigations on both an attraction channel to increase the water velocity at the inlet of a fishway for upstream migraters and a smolt guidance device to guide the smolt away from the turbine inlet to a safer passage route. To investigate the properties of the attraction channel both model and field experiments have been carried out, as well as numerical studies. The velocity in the channel has been examined with Laser-Doppler-Velocimetry and the flow field in the channel was studied using Particle-Imaging- Velovimetry. The results show that the water can be accelerated 38 % compared with the surrounding velocity. How far the increase in velocity is present depends on the depth of the attraction channel. The field tests carried out at Sikfors hydropower plant in Piteå River (Sweden) show that the fish do swim through the channel, providing that the channel is black. The flow around a smolt guidance device has been studied using numerical simulations. The aim of the device is to redirect the surface flow from the turbines to the spillway. By doing this, the shallow swimming smolt will also be guided towards the spillway and a much safer route. The results show that the guidance device successfully redirects the surface flow without creating any strong acceleration that may scare the fish.
Godkänd; 2008; 20081113 (ysko)
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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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Bin, Asad S. M. Sayeed. "Laser-based Measurements connected to Fish Migration." Licentiate thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-59663.

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Hydropower is one of the main sources for Sweden’s energy, which is clean and renewable. It is a clean energy source because no fuels are burned which does not pollute the air and it is a renewable energy source as it only uses natural water cycle for generating energy. However, hydropower has some consequences in nature, such as creating dams in rivers and changing water flow directions, which lead to some problems for migrating fishes. These fish migration problems are mostly studied from a biological point of view but more detailed studies are required from a fundamental fluid mechanics point of view. Fish migrates when ecological imbalance is created and one of the reasons for this imbalance is having dams for hydropower. Some dams have fishways or fish ladders to allow fish to migrate past the dam and during swimming or passing this fishway or fish ladder, fish has to tackle some sort of flow obstructions like, turbine intakes, stones and concrete structures etc. Fluid flow characteristics in fish ladders or fishways during fish migration is crucial for designing effective fishways to migrate fishes effectively. Flow characteristic measurements can provide quantitative information of the velocity distribution in fish ladders, which has strong correlation with the attraction of of fish. Recent research suggests that turbulence also has a large effect on fish migration. This is why obtaining flow information from well-defined turbulent flows, such as flow past cylindrical objects is the prime aim of these measurements. Particle Image Velocimetry (PIV) and Laser Doppler Velocimetry (LDV) have become the most popular and promising techniques for these types of non-contact measurements. PIV techniques are used to visualize and measure the flow characteristic in a selected area while LDV techniques are suited for point-based measurement. The works included in this thesis are reviewing PIV techniques previously used in fish movement related studies, LDV measurements both at upstream (bow wake) and downstream wake of cylindrical obstructions and finally Computational Fluid Dynamics (CFD) for validation of experimental measurements. The results find relatively acceptable agreement between CFD and experiments with some disparities.
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Nyqvist, Daniel. "Atlantic salmon in regulated rivers : Migration, dam passage, and fish behavior." Doctoral thesis, Karlstads universitet, Institutionen för miljö- och livsvetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-46903.

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Hydropower dams block migration routes and disrupt longitudinal connectivity in rivers, thereby posing a threat to migratory fish species. Various fish passage solutions have been implemented to improve connectivity with varying success. A well-functioning passage solution must ensure safe and timely passage routes that are used by a substantial portion of the migrating fish. In this thesis, I report the results from telemetry studies where the behavior and survival of migrating Atlantic salmon spawners, post-spawners and smolts have been evaluated in relation to hydropower dam passage. I evaluate downstream passage performance at dams with no passage solutions in the River Klarälven, and with simple passage solutions in in the Winooski River. In the River Ätran, I study both upstream- and downstream passage performance at a dam with sophisticated passage solutions based on the best available technology. In addition, I have studied the survival and behavior of post-spawners and hatchery-released smolts. A substantial portion of the spawners survived spawning and initiated downstream migration. Most males migrated downstream in autumn following spawning, whereas females tended to stay in the river until spring. For hatchery-reared smolts, early release was associated with faster initiation of migration and higher survival compared to late release. Multiple dam passage resulted in high mortality for both smolts and kelts. For smolts, dam passage, even with simple passage solutions, was associated with substantial delay and mortality. High spill levels were linked to high survival and short delay for downstream migrating salmon. The best available passage solution, which consisted of a nature-like fishway and a low sloping intake rack to guide fish to a bypass, resulted in rapid passage of a large portion of the adult migrants.
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Jesuthasan, Suresh. "Two modes of cell movement in the zebrafish embryo : neural crest cell migration and epiboly." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240465.

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Ordeix, Rigo Marc. "Fish migration in Mediterranean rivers: a case study of the fish pass assessment in Catalonia (NE Iberian Peninsula)." Doctoral thesis, Universitat de Lleida, 2016. http://hdl.handle.net/10803/396363.

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Pràcticament tots els peixos ibèrics d'aigües continentals migren clarament. La majoria són potamòdroms però també n’hi ha de diàdroms. Fan moviments migratoris extensos en el temps, més a mesura que disminueix la latitud, i varien entre els anys. Les seves migracions són molt importants al període de fresa i, gairebé tot l'any, per a alimentació i refugi. Per això, els dispositius de pas per a peixos haurien d’estar pràcticament sempre en funcionament. Entre 2005 i 2010, es va dur a terme una avaluació preliminar de la connectivitat per als peixos dels rius de Catalunya mitjançant la inspecció directa de 95 dispositius de pas per a peixos. La majoria eren safareigs successius. Només hi havia dispositius de pas a l’11% dels obstacles i molts (el 61%) eren inadequats o amb un manteniment incorrecte. Es va fer una anàlisi in situ de l'eficàcia de 10 dispositius aparentment adequats. L'estimació de les taxes de pas de moltes espècies eren, amb algunes excepcions, massa baixes i, a la majoria dels casos, aquests dispositius només facilitaven les migracions dels peixos amb més capacitat de superar obstacles o els individus de major talla. L’avaluació complementària in situ d'una rampa per a peixos considerada eficaç a priori (índex ICF de 95) va mostrar que permetia el pas de tots els ciprínids autòctons. El període de fresa va ser el principal impulsor de la migració riu amunt, que també es va veure influïda per la disminució de cabal just després de puntes de cabal, un mínim de temperatura de l'aigua i les fases lunars menys lluminoses.
Prácticamente todos los peces ibéricos de aguas continentales migran claramente. La gran mayoría son potamódromos pero también hay de diádromos. Realizan movimientos migratorios extensos en el tiempo, más a medida que disminuye la latitud, y varían entre los años. Sus migraciones son muy importantes en el periodo de freza y, casi todo el año, para alimentación y refugio. Así, los dispositivos de paso para peces deberían estar casi siempre en funcionamiento. Entre 2005 y 2010, se llevó a cabo una evaluación preliminar de la conectividad para los peces de los ríos de Cataluña mediante la inspección directa de 95 dispositivos de paso para peces. La mayoría eran estanques sucesivos. Sólo había dispositivos de paso en el 11 % de los obstáculos y muchos de ellos (el 61%) eran inadecuados o con un mantenimiento incorrecto. Se efectuó un análisis in situ de la eficacia de 10 dispositivos aparentemente adecuados. La estimación de las tasas de franqueo de muchas especies eran, con algunas excepciones, demasiado bajas y, en la mayoría de los casos, estos dispositivos sólo facilitaban las migraciones de los peces con mayor capacidad de superar obstáculos o los individuos de mayor talla. La evaluación complementaria in situ de una rampa para peces considerada eficaz a priori (índice ICF de 95) mostró que permitía el paso de todas los ciprínidos autóctonos. El periodo de freza fue el principal impulsor de la migración río arriba, que también se vio influida por la disminución de caudal justo después de puntas de caudal, un mínimo de temperatura del agua y las fases lunares menos luminosas.
Almost all Iberian freshwater fish clearly migrate. The great majority are potamodromous but there are also diadromous. Migratory movements are extensive in time, greater at lower latitudes, and vary over different years. Migrations take place particularly in the spawning period and throughout the year for feeding and refuge. Thus, fish passes would always be in operation. Between 2005 and 2010, a preliminary evaluation of river connectivity for fish in Catalonia was conducted through direct inspection of 95 devices. Most of them were pool passes. Fish passes were only present at 11% of river obstacles and many of these (61%) were inappropriate or poorly maintained. An in situ analysis of the effectiveness of 10 of these fish passes was carried out. The crossing rates estimated for many species, were, with few exceptions, too low and, in most cases, only fish with a high capacity for overcoming obstacles or the largest individuals succeeded in migrating. A complementary in situ assessment of a fish ramp considered effective a priori (ICF index of 95) showed that it allowed passage of all native cyprinids. The spawning period was a primary driver of upstream fish migration, which was also influenced by the decrease in river flow just after a peak flow, a minimum water temperature and less bright lunar phases. showed allow passage of all species. The spawning period was a primary driver of upstream fish migration, which was also influenced by a decrease in river flow just after a peak flow, a minimum water temperature and less bright lunar phases.
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Wright, Gillian Victoria. "Impact of tide gates on diadromous fish migration in the UK." Thesis, University of Southampton, 2014. https://eprints.soton.ac.uk/376995/.

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Anthropogenic structures fragment river connectivity, impeding the migration of diadromous fish between essential habitats. Tide gates are used worldwide primarily for flood protection and land reclamation by closing under hydraulic pressure during the flood tide and opening when head differential is sufficient during the ebb. Although tide gates are known to decrease fish species richness, abundance, and movement, their impacts on the migration of ecologically and socioeconomically important diadromous fish in terms of passage efficiency and delay have not been reported elsewhere. Acoustic and passive integrated transponder telemetry revealed that passage efficiencies of upstream migrating adult brown trout, Salmo trutta (92%), and downstream migrating juvenile sea trout smolts (96 - 100%) and adult European eel, Anguilla anguilla (98%), were high at top-hung tide gates in two small English streams. However, these fish experienced delay at the gates (adult brown trout, median = 6.0 h; sea trout smolts, mean = 6.5 and 23.7 h; eels, mean = 66.2 h) when compared to migration through unimpeded reaches. The percentage of time the gates were closed and mean angle of opening were positively related to delay in both species and life stages. Diel periodicity also influenced delay for smolts and eels, which were more active at night. For adult trout, water temperature was positively associated with delay. Upstream and downstream water temperature and salinity were influenced by the temporal operation of the gates. Orifices installed in the gates did not mitigate delay for adult or juvenile trout. For adult eels, delay was decreased when an orifice was operational, although this coincided with more eels first approaching the gates when open, higher tides and greater saline intrusion upstream of the gates. When gates were open, fish would not pass immediately through, indicating the potential influence of a behavioural avoidance component. To examine the effect of hydrodynamics created by top-hung tide gates with different aperture sizes, wild sea trout smolt behaviour was observed by video cameras in an experimental flume at night. Avoidance responses occurred within an average of 1.4 fish body lengths upstream of the gate. Fish were more likely to exhibit avoidance (switch in orientation from negative to positive rheotaxis, increased tail beat frequency and/or retreat upstream) in the vicinity of a model gate with a smaller angle of opening and passage aperture. Overall, top-hung tide gates delayed the migration of diadromous fish, potentially increasing energy expenditure and predation risk. Delay was not decreased by orifices. Modifying or replacing top-hung tide gates with designs that allow them to open wider and for longer could reduce migratory delay and improve the environmental conditions that cause behavioural avoidance.
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Pritt, Jeremy Joseph. "Fish Migration as an Ecosystem Linkage between Lake Erie and its Tributaries." University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1396277643.

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Lindbladh, Emma, and Johanna Eriksson. "Phenotypic correlates of spawning migration behaviour for roach (Rutilus rutilus) and ide (Leuciscus idus) in the stream Oknebäcken, Sweden." Thesis, Linnéuniversitetet, Institutionen för biologi och miljö (BOM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-98343.

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Migration occurs among many animal species for the purpose of, among other things, finding food or to reproduce. Spawning migration is a form of migration that occurs among many fish species where they move to another site for reproduction. The movement can be obstructed by migration barriers like road culverts. Barriers to migration pose one of the greatest threats to biodiversity and ecosystem functions in freshwater. They impair the connectivity of watercourses and may prevent fish from improving reproductive success or completing their life histories altogether. There are both benefits and costs with migration, benefits such as increased survival for the adults and offspring, and costs such as increased energy consumption and increased mortality. The costs are often dependent on the morphological traits of the individual, like body shape and size. In this study, the spawning migration of two species of fish of the family Cyprinidae, ide (Leuciscus idus) and roach (Rutilus rutilus) was investigated. Few studies have been made on ide or on roach compared to other cyprinids and salmonids. This study might therefore enhance the overall knowledge of these two species. The overall aims of this project are to study and compare phenotypic correlates of spawning migration behaviour of ide and roach. The field studies were performed in Oknebäcken, Mönsterås (SE632310-152985), Sweden in March and April 2020. To describe the watercourse and define the location and characteristics of different potential migration barriers, a simplified biotope mapping method was used. The fish were caught in a hoop net and then measured, weighted, sexed, and injected with passive integrated transponder using the bevel down method. In order to register in stream movement of fish, reading stations with antennas were placed, at two locations upstream from the marking station and one downstream at the estuary. The sex ratio differed from the expected 1:1 with a majority of females for both species. This might be a result of fluctuations in survival of spawn coupled with different age-at-maturity between sexes. We found that individuals that arrived early to the stream were larger for both study species, as other studies also reported. Also, male ide was both larger and arrived before female ide. There might be an energy cost associated with early arrival to the stream and therefore, larger individuals arrive first. For roach, there was no difference in arrival time between the sexes although female roach were larger. There was no difference in the time spent in the stream between the species. For ide, females stayed for a longer period of time in the stream than males. However, the opposite was true for roach. This may be because male roach might benefit from more fertilization events when staying longer. There might therefore be a trade-off between the energy cost in staying in the stream and the increased fitness advantage in fertilization events. We found no correlation between any of the morphological traits and migration distance. However, since very few individuals were registered at the upstream reading stations, there might be an effect of migration barriers on the spawning migration. The mortality after spawning was higher for roach than for ide. For ide, a larger proportion of females than males died. For roach, individuals that arrived early was classified as alive to a greater extent than those who arrived late. Both similarities and differences between the species were discovered in this study which concludes that even closely related species might differ substantially from each other.
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Books on the topic "Migrating fish"

1

The control of fish migration. Berlin: Springer-Verlag, 1985.

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Smith, R. J. F. The Control of Fish Migration. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82348-0.

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Schwevers, Ulrich, and Beate Adam. Fish Protection Technologies and Fish Ways for Downstream Migration. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-19242-6.

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Aleshkovskiĭ, P. Fish: A history of one migration. Montpelier, VT: Russian Life Books, 2010.

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Fish Passage Improvement Program (Calif.). Calaveras River fish migration barriers assessment report. [Sacramento, Calif.]: State of California, the Resources Agency, Dept. of Water Resources, Division of Planning and Local Assistance, Resource Restoration and Project Support Branch, 2007.

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Cooper, Randy. Trends in steelhead (Oncorhynchus mykiss) abundance in Washington and along the Pacific Coast of North America. [Olympia, Wash.]: Washington Dept. of Wildlife, Fisheries Management Division, 1992.

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McDowall, Robert M. Diadromy in fish: Migrations between freshwater and marine environments. London: Croom Helm, 1988.

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Harmon, Jerrel R. Use of a fish transportation barge for increasing returns of steelhead imprinted for homing: Final report. Portland, Or: U.S. Dept. of Energy, Bonneville Power Administration, Division of Fish and Wildlife, 1989.

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L, Klawe W., Murphy Pat 1955-, and Inter-American Tropical Tuna Commission, eds. Tuna and billfish: Fish without a country. 4th ed. La Jolla, Calif: Inter-American Tropical Tuna Commission, 1988.

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Tallman, Ross Franklin. Migration of inconnu (Stenodus leucichthys) and burbot (Lota lota), Slave River and Great Slave Lake, June 1994 to July 1995. Edmonton, Alta: Northern River Basins Study, 1996.

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Book chapters on the topic "Migrating fish"

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Ringelberg, J., and E. Van Gool. "Migrating Daphnia Have a Memory For Fish Kairomones." In Zooplankton: sensory ecology and physiology, 389–97. London: Routledge, 2021. http://dx.doi.org/10.1201/9780203733615-29.

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Arnekleiv, Jo Vegar, Morten Kraabøl, and Jon Museth. "Efforts to aid downstream migrating brown trout (Salmo trutta L.) kelts and smolts passing a hydroelectric dam and a spillway." In Developments in Fish Telemetry, 5–15. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6237-7_2.

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Ruhlé, C. "Decline and conservation of migrating brown trout (Salmo trutta f. lacustris L.) of Lake Constance." In Conservation of Endangered Freshwater Fish in Europe, 203–11. Basel: Birkhäuser Basel, 1996. http://dx.doi.org/10.1007/978-3-0348-9014-4_20.

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Buckley, Ainsley, and Geoff Arnold. "Orientation and Swimming Speed of Plaice Migrating by Selective Tidal Stream Transport." In Reviews: Methods and Technologies in Fish Biology and Fisheries, 263–77. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-1402-0_13.

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Wootton, R. J. "Migration, Territoriality and Shoaling in Fishes." In Fish Ecology, 77–97. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-3832-1_4.

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Schwevers, Ulrich, and Beate Adam. "Fishways for Downstream Migration." In Fish Protection Technologies and Fish Ways for Downstream Migration, 167–201. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-19242-6_5.

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Schönfisch, Birgitt, and Michael Kinder. "A Fish Migration Model." In Lecture Notes in Computer Science, 210–19. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-45830-1_20.

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Lennox, R. J., J. W. Brownscombe, C. K. Elvidge, P. Harrison, K. Peiman, G. D. Raby, and S. J. Cooke. "Behaviour including fish migration." In Climate change and non-infectious fish disorders, 125–35. Wallingford: CABI, 2020. http://dx.doi.org/10.1079/9781786393982.0125.

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Righton, David, Kim Aarestrup, Don Jellyman, Phillipe Sébert, Guido van den Thillart, and Katsumi Tsukamoto. "Extreme Swimming: The Oceanic Migrations of Anguillids." In Swimming Physiology of Fish, 19–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31049-2_2.

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Shadwick, Robert E., Laurenne L. Schiller, and Douglas S. Fudge. "Physiology of Swimming and Migration in Tunas." In Swimming Physiology of Fish, 45–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31049-2_3.

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Conference papers on the topic "Migrating fish"

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Jeng-Shyang Pan, Pei-Wei Tsai, and Yu-Bin Liao. "Fish Migration Optimization Based on the Fishy Biology." In 2010 Fourth International Conference on Genetic and Evolutionary Computing (ICGEC 2010). IEEE, 2010. http://dx.doi.org/10.1109/icgec.2010.198.

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Hakuta, Keiichiro, and Shigeru Tabeta. "Development of a Fish Behaviour Model in Coastal Sea." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79334.

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The evaluation of the behaviours of fish which stand on higher levels of food-web is important from the viewpoint of the resource management or other environmental impacts. Especially for the adult fish which can swim against the currents of circumference, considering the migration effects in the model is quite significant. In the present study, a fish model is developed which considers the migration effect by modeling the preference for the environmental factors. As the target fish of modeling, Pagrus major is chosen because it is one of the representative species due to its high resource value. In the model, the direction of the fish movement is determined by the preference strength for the environmental factors such as water temperature, dissolved oxygen, prey density, and so on. The model is coupled with a hydrodynamic model and a lower-trophic ecosystem model which predict physical environment and water quality of the target area. Numerical simulations are carried out to reproduce the spatial distribution and seasonal variations of ecosystem in east Seto Inland Sea. As a result of the simulations, it is clarified that the both water temperature and prey density have large influence on migration and distribution of Pagrus major.
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van Esch, Bart. "Injury and Mortality to Fish Passing Through Pumping Stations." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-06015.

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An unwanted side effect of pumping stations is that fish suffer from injury and mortality when passing through the pumps and that fish migration is hampered. In recent years, the development of so-called “fish-friendly pumping stations” is becoming a hot topic among European governmental institutions and pump manufacturers. In the Netherlands, many field studies have been conducted over the last decade, to assess the chances of survival for fish passing through pumps. However, a clear correlation between observed injury or mortality and (for example) flow rate, shaft speed or pump type could not be established. This paper presents a new analysis of the above mentioned field studies. It makes use of American studies on the biological criteria for fish injury, the most important of which are pressure changes, shear forces, and mechanical injury. A blade strike model was adapted to fish passing through centrifugal pumps of radial, mixed-flow, and axial type. It reveals the relation between fish injury and the type of pump, its size, shaft speed, and pressure head. The results correlate well with experiments. The flow through a typical mixed-flow pump is calculated using CFD. The results show that pressure fluctuations and shear forces are not likely to add to fish mortality. The paper concludes with guidelines for the design and selection of “fish-friendly pumps” in pumping stations.
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Voicu, Razvan. "ENSURING OF FISH MIGRATION UPSTREAM THE ISALNITA DAM." In 13th SGEM GeoConference on ECOLOGY, ECONOMICS, EDUCATION AND LEGISLATION. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/be5.v1/s20.049.

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Jiao, Yuanjie. "Prediction of fish migration based on LSTM model." In 2021 IEEE International Conference on Power Electronics, Computer Applications (ICPECA). IEEE, 2021. http://dx.doi.org/10.1109/icpeca51329.2021.9362612.

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Nakamura, Kenta, Shota Suzuki, and Shigeru Tabeta. "A Study on the Operation Strategies for Bottom Otter Trawling in Ise Bay." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-61142.

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In order to simulate the bottom trawl fishery in Ise Bay, a typical semi-enclosed bay in Japan, a fishery simulator has been developed that consists of a fish behavioral model and a fishing operations model. The fish behavioral models are developed for two major target species, conger eel and mantis shrimp, which consider the fish migration as well as the growth and the population change. The fish behavioral models are combined with a fishing operation model, which predicts the behavior of trawling boats based on economic conditions and resource distribution as well as the fish catch amount by each boat. The model is applied to evaluate the effects of fishery management, and it is investigated that how the control of fishing efforts or number of owned fishing boats affects the profit of the target fishery. The mesh size of the trawling net which maximizes the total catch is estimated considering both conger eel and mantis shrimp. At the target ports, reduction of boats number will increase the profit because the effect of fixed cost change exceeds the impact of fish catch decrease. However, the optimum reduction rate is different in each port and interactive effect should be also considered.
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MEISTER, JULIAN, HELGE FUCHS, ISMAIL ALBAYRAK, and ROBERT M. BOES. "HYDRAULICS OF HORIZONTAL BAR RACKS FOR FISH DOWNSTREAM MIGRATION." In 38th IAHR World Congress. The International Association for Hydro-Environment Engineering and Research (IAHR), 2019. http://dx.doi.org/10.3850/38wc092019-0369.

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Lee, Dah-Jye, Robert B. Schoenberger, Dennis Shiozawa, Xiaoqian Xu, and Pengcheng Zhan. "Contour matching for a fish recognition and migration-monitoring system." In Optics East, edited by Kevin G. Harding. SPIE, 2004. http://dx.doi.org/10.1117/12.571789.

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o, MACHIELS, ERPICUM S, PIROTTON M, ARCHAMBEAU P, and THEUNISSEN P. "Design of a Downstream Migration Fish Pass for Existing Hydropower Plants." In 38th IAHR World Congress. The International Association for Hydro-Environment Engineering and Research (IAHR), 2019. http://dx.doi.org/10.3850/38wc092019-0714.

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AN, RUIDONG, and JIA LI. "TYPICAL BIOLOGICAL BEHAVIOR OF MIGRATION AND FLOW PATTERN CREATING FOR FISH SCHOOLING." In 38th IAHR World Congress. The International Association for Hydro-Environment Engineering and Research (IAHR), 2019. http://dx.doi.org/10.3850/38wc092019-0571.

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Reports on the topic "Migrating fish"

1

Griffioen, A. B., and H. V. Winter. Fish migration river monitoring plan : Monitoring program on the effectiveness of the FMR at Kornwerderzand. IJmuiden: Wageningen Marine Research, 2017. http://dx.doi.org/10.18174/409282.

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Powers, Patrick D., and John F. Orsborn. New Concepts in Fish Ladder Design: Analysis of Barriers to Upstream Fish Migration, Volume IV of IV, Investigation of the Physical and Biological Conditions Affecting Fish Passage Success at Culverts and Waterfalls, 1982-1984 Final Report. Office of Scientific and Technical Information (OSTI), August 1985. http://dx.doi.org/10.2172/917018.

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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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Sankovich, Paul, MaryLouise Keefe, and Richard W. Carmichael. Smolt Migration Characteristics and Mainstem Snake and Columbia River Detection Rates of PIT-Tagged Grande Ronde and Imnaha River Naturally-Produced Spring Chinook Salmon, 1996 Annual Report : Fish Research Project, Oregon. Office of Scientific and Technical Information (OSTI), January 1997. http://dx.doi.org/10.2172/563831.

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Walters, Timothy R., Richard W. Carmichael, and MaryLouise Keefe. Smolt Migration Characteristics and Mainstem Snake and Columbia River Detection Rates of PIT-Tagged Grande Ronde and Imnaha River Naturally Produced Spring Chinook Salmon, Annual Reports 1993, 1994, 1995 : Fish Research Project, Oregon. Office of Scientific and Technical Information (OSTI), April 1996. http://dx.doi.org/10.2172/441715.

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Issue Backgrounder : Downstream Fish Migration : Improving the Odds of Survival. Office of Scientific and Technical Information (OSTI), May 1985. http://dx.doi.org/10.2172/5721349.

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