Results 21 to 30 of about 5,907 (210)
Tunas off northwest Africa: The epipelagic diet of The Bigeye and Skipjack tunas [PDF]
Fisheries Research, 2021 Abstract Tunas are among the most exploited top predators worldwide, with negative impacts on some of their stocks. Changes in their population abundance can impact marine food-webs and have the potential to alter entire ecosystems. To better understand the impacts of the exploitation of tuna stocks in the most critical habitats, basic knowledge on ...
Joana Romero +6 more
openaire +2 more sources
Discrimination of juvenile yellowfin (Thunnus albacares) and bigeye (T. obesus) Tunas using mitochondrial DNA control region and liver morphology. [PDF]
PLoS ONE, 2012 Yellowfin tuna, Thunnus albacares (Bonnaterre, 1788) and bigeye tuna, Thunnus obesus (Lowe, 1839) are two of the most economically important tuna species in the world.
Ivane R Pedrosa-Gerasmio +2 more
doaj +1 more source
Spatial variation in bigeye tuna Thunnus obesus size at sexual maturity in the eastern Pacific Ocean
Aquaculture and Fisheries, 2023 Understanding the reproductive characteristics of a species is of crucial for accurate stock assessment and management plans to ensure sustainable fisheries.
Hongji Huang +5 more
doaj +1 more source
Frontiers in Marine Science, 2020 This study analyzed the piscivorous diet of bigeye tuna (Thunnus obesus) through species identification of both fish and otolith remains in stomachs of 183 bigeye tuna collected in the western Indian Ocean.
Chien-Hsiang Lin +8 more
doaj +1 more source
Shipin gongye ke-ji, 2022 To scientifically evaluate the nutritional components and flavor substances of different muscle parts of bigeye tuna, yellowfin tuna and bluefin tuna, the differences among different species and parts of three tuna species were compared through basic ...
Ling ZHAO +4 more
doaj +1 more source
Diversity, 2023 The Tongan fisheries targeting the species of albacore (Thunnus alalunga), bigeye (Thunnus obesus), skipjack (Katsuwonus pelamis), and yellowfin tuna (Thunnus albacares), comprising the main tuna catch landed, within the EEZ of Tonga is critical to the ...
Siosaia Vaihola +2 more
doaj +1 more source
Trends of Indonesia’s bigeye tuna longline fisheries in the Eastern Indian Ocean: Catch per unit effort and length distribution [PDF]
E3S Web of Conferences, 2023 Bigeye tuna, Thunnus obesus (Lowe, 1839), is one of the primary target species for Indonesian tuna longliners operated in the eastern part of the Indian Ocean.
Hartaty Hety +3 more
doaj +1 more source
Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan, 2019 Komoditi tuna dan tuna-like merupakan hasil perikanan yang memiliki nilai ekonomis bagi Indonesia. Namun, logam berat dapat terakumulasi di biota ini karena posisinya sebagai top predator.
Tri Handayani +3 more
doaj +1 more source
Dynamic optimal foraging theory explains vertical migrations of Bigeye tuna [PDF]
Ecology, 2016 AbstractBigeye tuna are known for remarkable daytime vertical migrations between deep water, where food is abundant but the water is cold, and the surface, where water is warm but food is relatively scarce. Here we investigate if these dive patterns can be explained by dynamic optimal foraging theory, where the tuna maximizes its energy harvest rate ...
Thygesen, Uffe Høgsbro +3 more
openaire +3 more sources
Tuna longline fishing around West and Central Pacific seamounts. [PDF]
PLoS ONE, 2010 BACKGROUND: Seamounts have been identified as aggregating locations for pelagic biodiversity including tuna; however the topography and prevailing oceanography differ between seamounts and not all are important for tuna.
Telmo Morato +3 more
doaj +1 more source