Global ETD Search
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Showing 1 to 13 of 13 for “"Thunnus albacares"”.
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Comportamento da albacora laje Thunnus albacares (Bonnaterre, 1788) no Arquipélago de São Pedro e São Paulo
A albacora laje (Thunnus albacares) é uma das principais espécies de atuns capturadas no Atlântico tropical. Para a frota atuneira brasileira que opera no Atlântico oeste tropical, esta espécie é um dos principais recursos pesqueiros explorados, principalmente após o descobrimento como zona de …
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Physicochemical properties and potential utilization of side raw materials of yellowfin (Thunnus albacares) and albacore (Thunnus alalunga) tuna
… and skins from two tuna species, yellowfin (Thunnus albacares, YF) and albacore (Thunnus alalunga, AL) tuna. The analysed components from the heads were head muscle, eye muscle and eyeball, of which the latter was further separated in aqueous humour, lens, inner casing and outer casing. …
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Diet of albacore (Thunnus alalunga) and yellowfin tuna (Thunnus albacares) off the south-west coast of South Africa
Considering the magnitude of albacore and yellowfin biomass, these two economically vital tuna species apply a considerable amount of predation pressure on prey communities off the South African coast. Nevertheless, little is known about their respective diets in this upwelling region. Fish …
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Measurement of Thermal Properties of Seafood
… regalis</i>), and yellow fin tuna (<i>Thunnus albacares</i>) (Wheaton, et al. 1985). Thermal properties measured were thermal conductivity, thermal diffusivity, and specific heat from 5 to 30<sup>o</sup>C. Enthalpy was measured from -40 to 30<sup>o</sup>C. Moisture and fat content were …
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Determinação dos níveis de metais pesados em peixes epipelágicos e avaliação do risco que representam para a população, em Cabo Verde
… de peixes epipelágicos migratórios: atum (Thunnus albacares), serra (Acanthocybium solandri) e lobo (Coryphaena hippurus), capturados e comercializados em Cabo Verde, entre 2022 e 2024, para determinar a quantidade acumulada no músculo e o risco de exposição da população. Foram realizadas …
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Establishing a weight-length baseline for evaluating changes in yellowfin tuna (Thunnus albacores) body condition in the Western Indian Ocean
… equations were established for yellowfin tuna (Thunnus albacares) in the Western Indian Ocean and used as a baseline for calculating relative weight (Wr) indices. Length-weight data for yellowfin tuna were obtained from the Indian Ocean Tuna Commission (IOTC) for 1984 to 1991 and 2003 to 2013. …
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Behavioural Ecology of Large Tuna
… (Chapter 2). It then uses Atlantic bluefin tuna (Thunnus thynnus, ABT), large migratory apex predators with exceptional physiological capacity, as a model system to examine behavioural responses to stressors operating across contrasting temporal scales. Chapter 3 documents an opportunistic …
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Environmental influences on tuna movement patterns in the Indian Ocean
… exploited in the Indian Ocean: bigeye (Thunnus obesus), skipjack (Katsuwonus pelamis) and yellowfin (Thunnus albacares). The two programmes tagged 219,149 tuna and 34,294 recaptures were reported to the commission. This study focused on tuna behaviour in the Indian Ocean looking at …
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Investigating trophic interactions between parasites and their marine fish hosts using stable isotope analysis
… South African waters. These host species were; Thunnus albacares, Thunnus maccoyii, Thunnus alalunga, Thunnus obesus, Isurus oxyrinchus, Prionace glauca, Xiphius gladius, Brama brama, Thyrsites atun, Seriola lalandi, Sarda sarda, Genypterus capensis, Merluccius paradoxus, Merluccius capensis, …
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Movement and trophic ecology of large pelagic fishes connecting surface waters with the Ocean’s Twilight Zone
… Atlantic to three predators: bigeye tuna (Thunnus obesus), swordfish (Xiphias gladius), and yellowfin tuna (Thunnus albacares). I confirm the presumed high reliance of these predators on mesopelagic prey using a Bayesian mixing model approach that estimated 50-60% of their temperate carbon …
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Analysis of Multiple Degree-of-freedom Oscillatory Aquatic Propulsion
… constructed based on the yellowfin tuna (\textit{Thunnus albacares}) that is known to be both fast and efficient. This work extends the current understanding of oscillatory aquatic propulsion to a three-dimensional fish platform with full volume flow field data and propulsive performance. A …
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Movement and Trophic Ecology of Large Pelagic Fishes Connecting Surface Waters with the Ocean's Twilight Zone
… Atlantic to three predators: bigeye tuna (Thunnus obesus), swordfish (Xiphias gladius), and yellowfin tuna (Thunnus albacares). I confirm the presumed high reliance of these predators on mesopelagic prey using a Bayesian mixing model approach that estimated 50-60% of their temperate carbon …