Auswahl der wissenschaftlichen Literatur zum Thema „Drifting Fish Aggregating Devices“
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Zeitschriftenartikel zum Thema "Drifting Fish Aggregating Devices"
Hanich, Quentin, Ruth Davis, Glen Holmes, Elizabeth-Rose Amidjogbe und Brooke Campbell. „Drifting Fish Aggregating Devices (FADs)“. International Journal of Marine and Coastal Law 34, Nr. 4 (04.11.2019): 731–54. http://dx.doi.org/10.1163/15718085-23441103.
Der volle Inhalt der QuelleTrygonis, Vasilis, Stratis Georgakarakos, Laurent Dagorn und Patrice Brehmer. „Spatiotemporal distribution of fish schools around drifting fish aggregating devices“. Fisheries Research 177 (Mai 2016): 39–49. http://dx.doi.org/10.1016/j.fishres.2016.01.013.
Der volle Inhalt der QuelleZhang, Tongzheng, Zhiqiang Liu, Junbo Zhang, Xing Su, Junlin Chen und Rong Wan. „Numerical Study of the Hydrodynamic Response of Biodegradable Drifting Fish Aggregating Devices in Regular Waves“. Fishes 9, Nr. 4 (22.03.2024): 112. http://dx.doi.org/10.3390/fishes9040112.
Der volle Inhalt der QuelleZudaire, Iker, Gala Moreno, Jefferson Murua, Paul Hamer, Hilario Murua, Mariana T. Tolotti, Marlon Roman et al. „Biodegradable drifting fish aggregating devices: Current status and future prospects“. Marine Policy 153 (Juli 2023): 105659. http://dx.doi.org/10.1016/j.marpol.2023.105659.
Der volle Inhalt der QuelleMoreno, Gala, Erwan Josse, Patrice Brehmer und Leif Nøttestad. „Echotrace classification and spatial distribution of pelagic fish aggregations around drifting fish aggregating devices (DFAD)“. Aquatic Living Resources 20, Nr. 4 (Oktober 2007): 343–56. http://dx.doi.org/10.1051/alr:2008015.
Der volle Inhalt der QuelleMoreno, Gala, Laurent Dagorn, Gorka Sancho und David Itano. „Fish behaviour from fishers’ knowledge: the case study of tropical tuna around drifting fish aggregating devices (DFADs)“. Canadian Journal of Fisheries and Aquatic Sciences 64, Nr. 11 (01.11.2007): 1517–28. http://dx.doi.org/10.1139/f07-113.
Der volle Inhalt der QuelleCapello, Manuela, Gorka Merino, Mariana Tolotti, Hilario Murua und Laurent Dagorn. „Developing a science-based framework for the management of drifting Fish Aggregating Devices“. Marine Policy 153 (Juli 2023): 105657. http://dx.doi.org/10.1016/j.marpol.2023.105657.
Der volle Inhalt der QuelleBrehmer, Patrice, Erwan Josse und Leif Nøttestad. „Evidence that whales (Balaenoptera borealis) visit drifting fish aggregating devices: do their presence affect the processes underlying fish aggregation?“ Marine Ecology 33, Nr. 2 (05.08.2011): 176–82. http://dx.doi.org/10.1111/j.1439-0485.2011.00478.x.
Der volle Inhalt der QuelleBaidai, Yannick, Jon Uranga, Maitane Grande, Hilario Murua, Josu Santiago, Iñaki Quincoces, Guillermo Boyra, Blanca Orue, Laurent Floch und Manuela Capello. „A standard processing framework for the location data of satellite-linked buoys on drifting fish aggregating devices“. Aquatic Living Resources 35 (2022): 13. http://dx.doi.org/10.1051/alr/2022013.
Der volle Inhalt der QuelleBaidai, Y., L. Dagorn, M. J. Amande, D. Gaertner und M. Capello. „Machine learning for characterizing tropical tuna aggregations under Drifting Fish Aggregating Devices (DFADs) from commercial echosounder buoys data“. Fisheries Research 229 (September 2020): 105613. http://dx.doi.org/10.1016/j.fishres.2020.105613.
Der volle Inhalt der QuelleDissertationen zum Thema "Drifting Fish Aggregating Devices"
Maufroy, Alexandra. „Drifting Fish Aggregating Devices of the Atlantic and Indian Oceans : modalities of use, fishing efficiency and potential management“. Thesis, Montpellier, 2016. http://www.theses.fr/2016MONTT150/document.
Der volle Inhalt der QuelleSince the mid 1990s, the use of drifting Fish Aggregating Devices (dFADs) by purse seiners, artificial objects specifically designed to aggregate fish, has become an important mean of catching tropical tunas. In recent years, the massive deployments of dFADs, as well as the massive use of tracking devices on dFADs and natural floating objects, such as GPS buoys, have raised serious concerns for tropical tuna stocks, bycatch species and pelagic ecosystem functioning. Despite these concerns, relatively little is known about the modalities of GPS buoy tracked objects use, making it difficult to assess and manage of the impacts of this fishing practice. To fill these knowledge gaps, we have analyzed GPS buoy tracks provided by the three French fishing companies operating in the Atlantic and the Indian Oceans, representing a large proportion of the floating objects monitored by the French fleet. These data were combined with multiple sources of information: logbook data, Vessel Monitoring System (VMS) tracks of French purse seiners, information on support vessels and Local Ecological Knowledge (LEK) of purse seine skippers to describe GPS buoy deployment strategies, estimate the total number of GPS buoy equipped dFADs used in the Atlantic and Indian Oceans, measure the contribution of strategies with FOBs and support vessels to the fishing efficiency of tropical tuna purse seiners, identify potential damages caused by lost dFADs and finally to propose management options for tropical tuna purse seine FOB fisheries. Results indicate clear seasonal patterns of GPS buoy deployment in the two oceans, a rapid expansion in the use of dFADs over the last 7 years with an increase of 4.2 times in the Indian Ocean and 7.0 times in the Atlantic Ocean, possible damages to fragile coastal ecosystems with 10% of GPS buoy tracks ending with a beaching event and an increased efficiency of tropical tuna purse seine fleets from 3.9% to 18.8% in the Atlantic Ocean over 2003-2014 and from 10.7% to 26.3% in the Indian Ocean. Interviews with purse seine skippers underlined the need for a more efficient management of the fishery, including the implementation of catch quotas, a limitation of the capacity of purse seine fleets and a regulation of the use of support vessels. These results represent a first step towards better assessment and management of purse seine FOB fisheries
Snouck-Hurgronje, Julia. „The Effects of Drifting Fish Aggregating Devices on Bycatch in the Tropical Tuna Purse Seine Fisheries in the Atlantic and Indian Oceans“. W&M ScholarWorks, 2016. https://scholarworks.wm.edu/etd/1499449678.
Der volle Inhalt der QuelleDupaix, Amaël. „Impacts des modifications de l'habitat pélagique sur le comportement et la condition physiologique des thons tropicaux“. Electronic Thesis or Diss., Université de Montpellier (2022-....), 2023. http://www.theses.fr/2023UMONG027.
Der volle Inhalt der QuelleTropical tunas, as many pelagic fish species are known to associate with floating objects (FOBs). If this associative behavior has been known for almost 2 millennia, the reasons underlying it are still largely unknown. Fishers exploit this associative behavior to facilitate the search and catch of fish. In particular, in the 1980s, industrial fishers began to build and deploy their own man-made floating objects, drifting fish aggregating devices (DFADs). Since then, the deployment of DFADs has increased massively, which has several ecological impacts, on the environment and directly on marine species. This thesis focuses on DFADs ecological impacts on tropical tuna. DFADs impact tropical tuna directly by increasing purse seine fleets’ efficiency, yield and by expanding their fishing grounds. They also change species catch composition and increase the catch of small yellowfin (Thunnus albacares) and bigeye (Thunnus obesus) tunas. Besides these direct impacts (related with fishing mortality), DFADs could impact tropical tunas indirectly by their sole presence in the ocean. This thesis aims at (1) reviewing the indirect impacts of DFADs in tropical tuna, (2) quantifying the modifications induced by DFADs and other anthropic activities on tropical tuna surface habitat, and (3) characterizing the direct and indirect impacts of these modifications, considering tropical tuna behavior and condition.Based on a literature review, Chapter 2 outlines that DFADs do modify tropical tuna habitat, but quantitative characterizations are missing. There is a lack of clear converging scientific evidence on the indirect impacts of DFADs on the behavior and biology of tropical tuna. In the Western Indian Ocean, DFADs strongly increased FOB density, representing around 85 % of the encountered FOBs by observers onboard purse seine vessels (Chapter 3). Other human activities, like deforestation or climate change, did not induce any clear trend of natural floating objects density, suggesting that DFADs are the main driver of tropical tuna surface habitat modifications in the Indian Ocean (Chapter 4). The increase of DFAD density impacts the associative behavior of tropical tuna. A model of tuna behavior shows that this change strongly increased the percentage of their time individual tuna spend associated with FOBs, from 20 % to 68 % in the Western Indian Ocean (Chapter 5). DFADs also impact the associative behavior of tuna aggregations, which is also driven by biophysical characteristics of the environment (Chapter 6). Hence DFADs have a direct impact, through an increase of the time tropical tuna spend associated with FOBS, and consequently their catchability. The analysis of a 20-year dataset on size and weight of yellowfin tuna shows that the increase of FOB density induced by DFADs does not translate into a long-term impact on their condition in the Western Indian Ocean (Chapter 7). This calls for further investigation into the causal link between tuna association with DFADs and their low condition, which can be tested using the mathematical framework developed in Chapter 8.Finally, the work developed in this thesis allowed to improve our understanding of the impacts of DFADs on tropical tuna, which has several implications in terms of management. Further experimental and field work are needed to explore these potential impacts and long-term time series of indicators should be monitored to assess them. As DFADs indirect impacts can act as worsening factors on tuna populations, characterizing them is urgent. Also, this thesis brings new evidence on the reasons underlying tuna associative behavior with FOBs and on the resulting impacts of DFADs. In the Indian Ocean, the situation of tropical tuna stock is alarming, with both yellowfin and bigeye tunas being overexploited. The results of this thesis can help to better determine the impacts of DFADs on tropical tuna and thus contribute to improving the management of this common resource
Silva, Guelson Batista da. „Tuna fisheries and populational dinamic in aggregated schools in the western equatorial Atlantic“. reponame:Repositório Institucional da UFC, 2013. http://www.repositorio.ufc.br/handle/riufc/18714.
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The present study aims to characterize the technolo gical features and the catch composition, complemented with studies on the age a nd growth and feeding of the target species in the fishery for tunas in associated schools in the western equatorial Atlantic. For this purpose, a total of 109 landings by the fleet based on Areia Branca, RN, were observed in the period from June 2010 to M ay 2013, as well as on board in nine fishing cruises in the period from February 2011 to December 2012. The age and growth study was performed based on readings of age rings of the dorsal spines and daily microincrements present in the otolith of Thunnus albacares, adjusted to von Bertalanffy , Gompertz and Logistic growth models, which were selected based on their AIC (Akaike 's Information Criterion) valu es. The feeding study was developed through the identification and assessment of food items present in the stomach contents from T. obesus and T. albacares . The fleet consisted of 9 boats, with an average length overall of 13.4 m, which use various fishing techniques such as handline, rod and line and trolling, combined with natural baits or lures. Landings amounted 691,533 kg, from which, the target species were bigeye and yellowfin tunas, as well as bycatch, species such as dolphinfish, blue marlin, skipjack, wahoo, rainbow runner and, even occasionally, species such as swordfish and triggerfish. The values of L were estimated at 175.13 and 171.6 cm for the obser ved and backcalculated data from the dorsal spines and 166.6, 171.14 and 155.38 cm, respectively for the pooled data, males and females based on otolith daily microstructure. The main food items observed in the diet of both predators were the following fish families: Myctophidae, Exocoetidae, Bramidae and Nomeidae. Cephalopods and crustaceans were occasionally observed. We can conclude that results provide essential information that will ass ist in the understanding of fishing activities as well as expand the knowledge on the biology of the target species.
O presente trabalho tem por objetivo a caracterização dos aspectos tecnológicos e da composição das capturas, complementados com estudos sobre o crescimento e a alimentação das principais espécies na pesca de atuns e afins em cardumes associados no Atlântico Oeste Equatorial. Para tanto, foram acompanhados 109 desembarques em Areia Branca, RN, no período entre jun/2010 e mai/2013, assim como o embarque em nove cruzeiros de pesca no período entre fev/2011 e dez/2012. O estudo de idade e crescimento, foi realizado com base nas leituras de anéis etários nos espinhos dorsais e microincrementos diários de otólitos de Thunnus albacares ajustados aos modelos de crescimento de von Bertalanffy, Gompertz e Logístico, os quais foram selecionados a partir dos valores de AIC (Akaike’s Criterion Information). O estudo de alimentação foi desenvolvido por meio da identificação e avaliação dos itens alimentares presentes no conteúdo estomacal de T. obesus e T. albacares. Foram observadas 9 embarcações, com comprimento total médio de 13,4 m, as quais utilizam diversas técnicas de captura como a linha de mão, vara e linha, corrico e corso, com o uso de iscas artificiais e naturais. Os desembarques totalizaram 691.533 kg de pescado, dentre os quais, as espécies alvo foram a albacora bandolim e a albacora laje, sendo retidas tambem espécies como o dourado, agulhão negro, bonito-listrado, cavala empinge, peixe rei e ainda, ocasionalmente, espécies como espadarte e cangulo. Os valores de L ̅_∞ foram estimados em 175,13 e 171,6 cm para os dados observados e retrocalculados a partir dos espinhos dorsais e em 166,6; 171,14; e 155,38 cm respectivamente para os dados agrupados, para machos e fêmeas a partir dos microincrementos diários de otólitos. Os principais itens alimentares observados na dieta de ambos os predadores foram os peixes das famílias Myctophidae, Exocoetidae, Bramidae e Nomeidae, sendo observadas com menor frequência os cefalópodes e os crustáceos. Podemos concluir que os resultados obtidos fornecem informações essênciais que ajudarão a compreender as atividades de pesca, bem como ampliarão os conhecimentos sobre a biologia das principais espécies capturadas.
Robert, Marianne. „Le comportement des thons tropicaux autour des objets flottants : de l’étude des comportements individuels et collectifs à l’étude du piège écologique“. Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20118/document.
Der volle Inhalt der QuelleResearch in fisheries science aims at investigating the functioning of fish population with the objective of using this knowledge to propose sustainable management measures. This PhD thesis relies on a collection of experiments and modelling designed to further our knowledge on the aggregative behaviour of large pelagic fish with floating structures at the surface of the ocean. The overall objective is to test whether the thousands of man-made floating structures deployed by fishermen (also referred as Fish Aggregating Device –FAD) act as ecological traps for tropical tunas. To archive this main objective, it was first necessary to characterize the individual behaviour of tuna in a network of FAD. In the first chapter, the analysis of 96 acoustically tagged yellowfin tuna (Thunnus albacares) between 30-96 cm FL in the array of anchored FADs around Oahu (Hawaii, US) shows that individuals tuna exhibited behavioural plasticity while in the array and that behaviour around FAD is size dependent. In order to assess the impact of the increasing density of FAD, the major habitat modification, it is essential to understand the factors that influence the residence time at FADs. In the second chapter, binary choice experiments suggest that the aggregated biomass under the FAD play a role in the aggregative process. Nonetheless, quantification of arrival and departure dynamics of fish to FAD are required to validate the assumptions we proposed on the underlying social mechanism. Such model would, then, allow testing the effect of FAD density and environmental conditions on individual residence time and spatial distribution of population. In the third chapter, the comparison of skipjack tuna (Katsuwonus pelamis) condition between individual associated with logs and in free swimming schools in the Mozambique Channel, an area known to be naturally enriched with logs with few FADs, highlights the need for estimating reference points prior to assessing the impacts of anthropogenic modifications to habitats on animals.Combining the different chapters, our results tend to favour a social rather than a trophic role of floating objects in the ecology of tunas. More generally, we discuss what novel insight our results bring up on the ecological trap hypothesis. Tropical tunas represent an interesting model species on which we focused. However, the theoretical framework of the questions we addressed, the observation and analytical tools we developed are generic enough to be applied to the others species that are encountered around floating structures. In a broader extent, this work meets the general topic of studying behavioural strategies and distribution of population in multi-patch environment
Baidai, Yannick Diby Armel. „Dérivation d'un indice d'abondance direct pour les thons tropicaux basé sur leur comportement associatif avec les objets flottants“. Thesis, Montpellier, 2020. http://www.theses.fr/2020MONTG031.
Der volle Inhalt der QuelleRepresenting the majority of the world’s tuna catches, tropical tuna species are of critical importance due to their essential role as food and economic resource. The sustainable management of this valuable resource depends on an accurate estimate of the abundance of the exploited populations and the impact of fishing pressure on them. The present thesis provides a new direct abundance index for tropical tuna populations that account for their free-swimming and associated components. Indeed, tropical tuna species are characterized by a singular behavioral trait that causes them to associate with floating objects drifting at sea. This characteristic has led to the development of a specific fishing mode widely used in tuna purse seine fishery, consisting in the capture of schools associated to floating objects. Recent decades have thus seen the massive deployment of thousands of floating objects known as fish aggregating devices (FADs), specifically designed to attract and concentrate tuna schools. The drifting FADs are equipped with satellite-linked echosounder buoys, which ensure their continuous monitoring, providing fishers with near-real time information on their location and associated tuna biomasses. This thesis presents a standard methodological framework for processing the information from echosounder buoys for scientific use, including a new approach based on supervised learning for processing the acoustic data they provide. The analysis of these data has allowed improving the general knowledge on the associative dynamics of tuna aggregations. Ocean-specific differences were evidenced, with notably longer periods of absence of tuna under FADs in the Indian Ocean than in the Atlantic Ocean. The novel index for estimating tuna abundances proposed by this thesis also exploit this associative behavior. It relies on a modelling approach combining data on the dynamics of the occupancy of floating objects from echosounder buoys with data on the associative dynamics of tuna individuals from electronic tagging. An initial application to skipjack populations in the Western Indian Ocean has made it possible to provide time series of absolute and relative abundances, used for stock assessments of this species. This new index addresses the current critical need for complementary methods for estimating tropical tuna abundances, expressed by all regional fisheries management organizations
Imzilen, Taha. „Analyse et modélisation des trajectoires des dispositifs à concentration de poissons dérivants (DCP) dans les zones océaniques tropicales et estimation des risques associés à leur déploiement“. Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS266.
Der volle Inhalt der QuelleMarine pollution has increased over time, becoming a major source of concern. A non-negligible proportion of these waste and pollutants are from sea-based sources, especially fisheries, due to derelict fishing equipment. Tropical tuna purse seine fishing vessels contribute to this problem by deploying large numbers of drifting Fish Aggregating Devices (dFADs), as a significant portion of these floating objects eventually end up derelict, potentially contributing to marine pollution and threatening sensitive ecosystems such as coral reefs. The general objective of this thesis is to use scientific analyses of dFAD trajectory and fishing data to propose mitigation measures to reduce these problems in the Indian and Atlantic Oceans. First, it is demonstrated that prohibiting deployments in areas most likely to lead to beachings has the potential to be effective for reducing the beaching rate. Results indicate that 21% to 40% of beachings could be prevented if deployments were prohibited in high risk areas, roughly delimited by the areas south of 8°S latitude, the Somali zone in winter, and the western Maldives in summer for the Indian Ocean, and in an elongated strip of areas adjacent to the western African coast for the Atlantic Ocean. Next, the identification of areas within the fishing ground where most dFADs exit, as well as the passage of a large number of dFADs close to ports, provides support for the implementation of recovery programs to collect these dFADs at sea and reduce their loss. These two measures appear to be complementary since areas predicted to benefit less from closures are more likely to benefit from recovery programs, particularly in the northwestern Indian Ocean and the northern Gulf of Guinea. Finally, the evaluation of a Lagrangian transport tool to simulate the trajectories of dFADs shows that the efficiency of this tool at the basin scale is relatively good in the two oceans, that the accuracy to simulate the trajectories is better in the Indian Ocean than in the Atlantic Ocean, and that this accuracy depends on the depth and the spatial resolution of the forcing currents product used. This tool could be used in an operational mode in the future to anticipate the trajectories of dFADs that could lead to loss or beaching and therefore be used as a complementary mitigation program to the other two measures described above (prohibiting deployments and recovery at sea). The results obtained during these various works thus constitute a solid basis to define new recommendations to mitigate the risks of loss and beachings of dFADs and thus contribute to the preservation of our oceans and our coasts
Hung, Mine-Kune, und 洪銘昆. „Studies on the migration pattern of yellowfin tuna (Thunnus albacares) around the fish aggregating devices (FADs) off South-Western Taiwan“. Thesis, 2008. http://ndltd.ncl.edu.tw/handle/ujyt33.
Der volle Inhalt der Quelle國立中山大學
海洋事務研究所
96
The spatial movements of yellowfin tunas around the fish aggregating devices which were anchored below 40 meters water with a VEMCO VR2 receiver were investigated using ultrasonic telemetry tags V9P (VEMCO VP9-2H-S256). The experiment was conducted in the Shiao-Liu-Chiu Island of Taiwan from July to September, 2007. A pair of VEMCO VR2 receivers was separated by 400 meter distances in west of south sea ,Taiwan. A total of 9 tagged fishes with different sizes were monitored for maximum 19 days. Preliminary results showed that juvenile fish stayed longer and closer within FADs than the adult fish. Fish could move vertically to as low as 160 meters at daytime. They avoid the surface water where the temperature reach 30oC. In nighttime, juvenile fish that has fork length smaller than 55cm generally moves to the surface mixed layer. On the horizontal movement, there are three types. A) fish stays at FADs site. B) Fish move in and out FADs sites for a few hours period. C) fish moves away from FADs site for a long times (maybe 2~3 days). Sometimes juvenile fish would have B) or C) moved away from the FAD devices during dawn and dusk, and back at daytime. But this would not occurred with large fish. We estimated the attraction radius of FADs at least 1 km.
Weng, Jinn-Shing, und 翁進興. „Movements and feeding habits of juvenile yellowfin tuna (Thunnus albacares) associated with subsurface fish aggregating devices (FADs) off southwestern Taiwan“. Thesis, 2016. http://ndltd.ncl.edu.tw/handle/73258892715680505654.
Der volle Inhalt der Quelle國立臺灣海洋大學
環境生物與漁業科學學系
104
The yellowfin tuna, Thunnus albacares, is one of the major species caught around subsurface fish aggregation devices (FADs) in the waters southwestern of Taiwan. An increase in yellowfin tuna catch by danish seine fisheries around the subsurface FADs in southwestern Taiwan waters has been a concern of local government and environmental groups. However, the attraction mechanism of aggregating tunas at the subsurface FADs and the interaction between yellowfin tuna and others organisms are still poorly known. The objectivs of this study are (1) to examine the fine-scale vertical and horizontal movements of juvenile yellowfin tunas around subsurface FAD, (2) to examine the diet and feeding habits of yellowfin tuna. In total, 53 tunas (35–81 cm fork length) were tagged with ultrasonic telemetry tags and released at a subsurface FAD in the waters off Shiao-Liu-Chiu Island, southwestern Taiwan from October 2008 to December 2009. These tunas stayed at the subsurface FAD for up to 31 days, with daytime vertical movement depths averaging 60–80 m at a maximum depth of 250 m. At night, the tuna gathered at a shallow depth of 40 m. The mean depth of vertical movement in the daytime is significantly different from that of the nighttime (p < 0.05, t- test,). The maximum detectable distance of horizontal movement was 1600 m, with 80% of the long horizontal movements occurring in the daytime. It is likely that the purpose of these vertical and horizontal movements was for feeding. Moreover, the tagged tunas did not depart from the subsurface FAD simultaneously, suggesting distinct behaviors in their movements. Stomach contents analysis based on 1477 specimens with fork lengths (FLs) ranging from 24 to 108 cm and stable isotope analysis (202 specimens) collected around subsurface FADs in the waters southwest of Taiwan. Stomach contents analysis indicated that juvenile yellowfin tuna with FL < 50 cm mainly feed on larval Sthenoteuthis oualaniensis, larval shrimps, and zooplanktonic organisms such as Amphipods. Yellowfin tuna with FL of ~50 cm switch their diet to teleost fishes such as Lestrolepis japonica, Benthosema pterotum, Exocoetidae, and Scombridae. Stable isotope analysis indicated that the δ15N values ranged between 6.2and 12.6‰, and the estimated trophic position varied from 3.2 ± 0.2for tuna with FL < 30 cm, while it reached 4.6 ± 0.5 for those with FL > 50 cm and 4.8 ± 0.1 for those with FL > 90 cm. Based on the distinct diet shift of the juvenile yellowfin tuna, demonstrated by both stomach contents and stable isotope analysis, this study concluded that tuna shift their diet at approximately 50 cm FL.
Bücher zum Thema "Drifting Fish Aggregating Devices"
Chapman, L. B. Manual on fish aggregating devices (FADs). Noumea, New Caledonia: Secretariat of the Pacific Community, 2005.
Den vollen Inhalt der Quelle findenWeerasooriya, K. T. Experiences with fish aggregating devices in Sri Lanka. Madras: Development of Small-Scale Fisheries in the Bay of Bengal, 1987.
Den vollen Inhalt der Quelle findenJames, Anderson, Gates, Paul D., d. 1994. und South Pacific Commission. Coastal Fisheries Programme. Capture Section., Hrsg. South Pacific Commission fish aggregating device (FAD) manual. Noumea, New Caledonia: Coastal Fisheries Programme, Capture Section, South Pacific Commission, 1996.
Den vollen Inhalt der Quelle findenPreston, G. L. Vertical longlining and other methods of fishing around fish aggregating devices (FADs): A manual for fishermen. Noumea, New Caledonia: Secretariat of the Pacific Community, 1998.
Den vollen Inhalt der Quelle findenBay of Bengal Programme. Small-Scale Fisherfolk Communities., Hrsg. Biosocioeconomic assessment of the effects of fish aggregating devices in the tuna fishery in the Maldives. Madras: Bay of Bengal Programme, 1994.
Den vollen Inhalt der Quelle findenPetaia, S. Capture Section report of fish aggregating device (FAD) site survey, construction, and deployment assistance to the Fisheries Department of Tuvalu: Phase I, 7-24 October 1995 and Phase II, 17 May-7 June 1996. Noumea, New Caledonia: South Pacific Commission, Coastal Fisheries Programme, 1997.
Den vollen Inhalt der Quelle findenWECAFC Ad Hoc Working Group on the Development of Sustainable Moored Fish Aggregating Device Fishing in the Lesser Antilles. Meeting. Report of the Second Meeting of the WECAFC Ad Hoc Working Group on the Development of Sustainable Moored Fish Aggregating Device Fishing in the Lesser Antilles: Le Robert, Martinique, 8-11 October 2004. Rome: Food and Agriculture Organization of the United Nations, 2007.
Den vollen Inhalt der Quelle findenBeverly, S. Capture Section report of Wallis and Futuna fish aggregating device (FAD): Technical assistance projects : 25 August to 15 September 1992, 7-11 November 1992, and 23-29 July 1995. Noumea, New Caledonia: Secretariat of the Pacific Community, 1999.
Den vollen Inhalt der Quelle findenWestern Central Atlantic Fishery Commission. Ad Hoc Working Group on the Development of Sustainable Moored Fish Aggregating Device Fishing in the Lesser Antilles. Meeting. Report of the First Meeting of the WECAFC Ad Hoc Working Group on the Development of Sustainable Moored Fish Aggregating Device Fishing in the Lesser Antilles: Le Robert, Martinique, 8-11 October 2001. Rome: Food and Agriculture Organization of the United Nations, 2002.
Den vollen Inhalt der Quelle findenSymposium on Artificial Reefs and Fish Aggregating Devices as Tools for the Management and Enhancement of Marine Fishery Resources (1990 Colombo, Sri Lanka). Report of the Symposium on Artificial Reefs and Fish Aggregating Devices as Tools for the Management and Enhancement of Marine Fishery Resources, Colombo, Sri Lanka, 14-17 May 1990. Bangkok: Regional Office for Asia and the Pacific, Food and Agriculture Organization of the United Nations, 1991.
Den vollen Inhalt der Quelle findenBuchteile zum Thema "Drifting Fish Aggregating Devices"
Marsac, Francis, und Patrice Cayré. „Telemetry applied to behaviour analysis of yellowfin tuna (Thunnus albacares, Bonnaterre, 1788) movements in a network of fish aggregating devices“. In Advances in Invertebrates and Fish Telemetry, 155–71. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5090-3_19.
Der volle Inhalt der QuelleJani, Jarina Mohd. „The Status of Artisanal Fish Aggregating Devices in Southeast Asia“. In Modern Fisheries Engineering, 57–66. CRC Press, 2020. http://dx.doi.org/10.1201/9780429328039-6.
Der volle Inhalt der QuelleKonferenzberichte zum Thema "Drifting Fish Aggregating Devices"
Sinopoli, Mauro, Fabio Badalamenti und Giovanni D'Anna. „The role of FADs (Fish Aggregating Devices) in the coastal dispersion of juvenile fish species in the North-Western Sicily“. In 2022 IEEE International Workshop on Metrology for the Sea; Learning to Measure Sea Health Parameters (MetroSea). IEEE, 2022. http://dx.doi.org/10.1109/metrosea55331.2022.9950817.
Der volle Inhalt der QuelleAabel, J. P., S. J. Cripps und G. Kjeilen. „Offshore Petroleum Installations in the North Sea used as Fish Aggregating Devices - Potential and Suggestions for Preparation, Management and Monitoring“. In SPE Health, Safety and Environment in Oil and Gas Exploration and Production Conference. Society of Petroleum Engineers, 1996. http://dx.doi.org/10.2118/35919-ms.
Der volle Inhalt der QuelleBerichte der Organisationen zum Thema "Drifting Fish Aggregating Devices"
Kramer, Sharon H., Christine D. Hamilton, Gregory C. Spencer und Heather O. Ogston. Evaluating the Potential for Marine and Hydrokinetic Devices to Act as Artificial Reefs or Fish Aggregating Devices. Based on Analysis of Surrogates in Tropical, Subtropical, and Temperate U.S. West Coast and Hawaiian Coastal Waters. Office of Scientific and Technical Information (OSTI), Mai 2015. http://dx.doi.org/10.2172/1179455.
Der volle Inhalt der QuelleEvaluation of the project "Enhancing Livelihoods and Food Security though Fisheries with Nearshore Fish Aggregating Devices in the Pacific Ocean". FAO, Juni 2024. http://dx.doi.org/10.4060/cd1019en.
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