Results 11 to 20 of about 827 (170)

The relationship between the annual catch of bigeye tuna and climate factors and its prediction

Frontiers in Marine Science
IntroductionIn order to explore the impact of climate factors on bigeye tuna catch, monthly data of nine climate factors, including El Niño-related indices (Niño1 + 2, Niño3, Niño4, and Niño3.4), Southern Oscillation Index (SOI), North Atlantic ...
Xiaorong Zou
exaly   +3 more sources

Management Implications of Mesopelagic Forage Fisheries for Bigeye Tuna Stocks

Fisheries Management and Ecology
ABSTRACT Many large marine predators forage on mesopelagic fish stocks, including commercially valuable tunas. The mesopelagic is under increasing interest for commercial exploitation, given its large biomass with potential to supply fishmeal for aquaculture feed or fish oil.
Willis, Ciara, Jin, Di, Kourantidou, Melina, Thorrold, Simon   +3 more
openaire   +3 more sources

Comparative analysis of three bait types in deep-set pelagic longline gear in the Equatorial Atlantic Ocean

Boletim do Instituto de Pesca, 2022
The choice of bait is one of the fisheries tactics used to increase selectivity for particular target species. The performance of three bait types (mackerel, sardine, squid) was evaluated with a commercial vessel operating in the Equatorial Atlantic ...
Tiago Hilário Pedrosa Campello, Lucas Eduardo Comassetto, Humberto Gomes Hazin, Jose Carlos Pacheco dos Santos, David Kerstetter, Fábio Hissa Vieira Hazin (in memorian)   +5 more
doaj   +3 more sources

Pacific bluefin tuna (Thunnus orientalis) bycatch in the Atlantic Ocean. [PDF]

J Fish Biol
Abstract A large tuna was hooked by a Japanese longline fishery in the high seas near the Republic of Namibia. This fishing ground is mainly utilized for Thunnus albacares, Thunnus obesus and Thunnus alalunga by Japanese tuna longliners. Because the tuna was larger than the common size of these species, the specimen was sampled for genetic species ...
Tsukahara Y, Tawa A, Sekino M, Nohara K, Suzuki N.   +4 more
europepmc   +2 more sources

Listening to tuna: Acoustic characterization of captive juvenile yellowfin tuna (Thunnus albacares). [PDF]

J Fish Biol
Abstract The effectiveness of passive acoustic monitoring (PAM) for studying marine biodiversity highly relies on comprehensive libraries of species‐specific sounds. While sound production is well‐documented in reef and freshwater fishes, the acoustic behaviour of ecologically and economically vital pelagic species like tunas still remains largely ...
Anggawangsa RF, Bertucci F, Hargiyatno IT, Hutapea JH, Setiadi A, Gunawan G, Wudianto W, Satria F, Soria M, Dagorn L, Capello M.   +10 more
europepmc   +2 more sources

Larval Genomics as a Viable, Fisheries-Independent Tool for Investigating Population Structure in Tropical Pacific Tunas. [PDF]

Mol Ecol
ABSTRACT Understanding how dispersal, life history, and environmental variability shape genetic connectivity in the open ocean remains a central challenge in evolutionary biology. Highly migratory marine predators like tunas have traditionally been considered genetically homogeneous across ocean basins, yet emerging genomic evidence suggests that ...
Jaskiel JE, Aichelman HE, Anderson G, Claassens L, Fifer JE, Hernandez CM, Huzar AK, Llopiz JK, Witting JW, Mullen SP, Rotjan RD.   +10 more
europepmc   +2 more sources

SIZE TREND ANALYSIS OF BIGEYE TUNA (Thunnus obesus) AND YELLOWFIN TUNA (Thunnus albacares) AT PALABUHANRATU ARCHIPELAGO FISHING PORT

JFMR-Journal of Fisheries and Marine Research, 2021
Bigeye tuna (Thunnus obesus) and Yellowfin tuna (Thunnus albacares) are a marine commodity that has high nutritional content and economic value in the market.
Dita Agustian, Erri Noviar Megantara, Yudi Nurul Ihsan, Martha Fani Cahyandito   +3 more
doaj   +1 more source

Length-frequency compositions and weight–length relations for bigeye tuna, yellowfin tuna, and albacore (Perciformes: Scombrinae) in the Atlantic, Indian, and eastern Pacific oceans [PDF]

Acta Ichthyologica et Piscatoria, 2008
Background. Bigeye tuna, Thunnus obesus (Lowe, 1839); yellowfin tuna, Thunnus albacares (Bonnaterre, 1788); and albacore, Thunnus alalunga (Bonnaterre, 1788), are very important species for world fisheries.
G. Zhu, L. Xu, Y. Zhou, X. Dai
doaj   +3 more sources

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, Paulo Catry, Margarida Hermida, Verónica Neves, Bárbara Cavaleiro, Lídia Gouveia, José Pedro Granadeiro   +6 more
openaire   +2 more sources

Assessing trophic interactions among three tuna species in the Solomon Islands based on stomach contents and stable isotopes

Frontiers in Marine Science, 2022
Trophic research is essential to the conservation and management of fishery resources. This study analyzed the feeding habits and nutritional interactions among three tuna species in the waters of the Solomon Islands (5°12′S–15°20′S, 157°31′E–172°19′E ...
Ri Jin Jiang, Ri Jin Jiang, Ri Jin Jiang, Fan Yang, Fan Yang, Fan Yang, Fan Yang, Feng Chen, Feng Chen, Feng Chen, Rui Yin, Rui Yin, Rui Yin, Ming Zhi Liu, Ming Zhi Liu, Ming Zhi Liu, Ming Zhi Liu, Wen Bin Zhu, Wen Bin Zhu, Wen Bin Zhu, Ai Guo, Ai Guo, Ai Guo, Lian Wei Liu, Lian Wei Liu, Lian Wei Liu   +25 more
doaj   +1 more source