Results 31 to 40 of about 1,213 (174)

Pacific bluefin tuna (Thunnus orientalis) bycatch in the Atlantic Ocean

open access: yesJournal of Fish Biology, EarlyView.
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 ...
Yohei Tsukahara   +4 more
wiley   +1 more source

Deep diving behavior observed in yellowfin tuna (Thunnus albacares) [PDF]

open access: yesAquatic Living Resources, 2006
Yellowfin tuna (Thunnus albacares) are known to preferentially occupy the surface mixed layer above the thermocline and it has been suggested that they are physiologically restricted to water temperatures no more than 8 ◦ C colder than surface waters. However, we here report for dive data acquired from a large yellowfin tuna which demonstrate for the ...
Dagorn, Laurent   +10 more
openaire   +2 more sources

Microencapsulation of trypsin from the intestine of yellowfin tuna (Thunnus Albacares)

open access: yesIOP Conference Series: Earth and Environmental Science, 2022
Abstract Fish viscera is one of the waste products from fisheries that have not been widely used it tends to be disposed of more. Whereas in fish innards there are some enzymes including the trypsin found in the intestines. To increase the added value of fish viscera, a study on the extraction and microencapsulation of trypsin from fish ...
Tati Nurhayati   +2 more
openaire   +1 more source

Properties of protease and lipase from whole and individual organ of viscera from three tuna species [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2008
Properties of visceral enzymes from yellowfin tuna (Thunnus albacares), skipjack tuna (Katsuwonus pelamis) and tonggol tuna (Thunnus albacares) were studied.
Thiraratana Prachumratana   +1 more
doaj  

Caracterização da pescaria industrial de espinhel-de-superfí­­cie no Rio Grande do Norte

open access: yesBoletim do Instituto de Pesca, 2017
O Rio Grande do Norte (RN) foi o principal exportador brasileiro de atuns e afins durante o perí­­odo de 2006 a 2016, gerando alimento, emprego e renda, haja vista a sua proximidade com as rotas migratórias desses peixes.
Marcelo Gomes de LIRA   +2 more
doaj   +1 more source

Discrimination of juvenile yellowfin (Thunnus albacares) and bigeye (T. obesus) Tunas using mitochondrial DNA control region and liver morphology. [PDF]

open access: yesPLoS 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

The Occurrence of Microplastic Ingestion in Commercial Marine Fish in Miri, Sarawak, Malaysia

open access: yesEnvironmental Quality Management, Volume 35, Issue 4, Summer 2026.
ABSTRACT Microplastics are polymer‐based particle compositions of various toxic chemicals with size less than 5 mm. Due to their small size, microplastics can be ingested and accumulate in body tissues of organisms. This raises concerns about their toxicity being transferred to humans via food consumption.
Sze Che Lee, Rubiyatno, Tony Hadibarata
wiley   +1 more source

Mercury, cadmium, lead, arsenic, copper and zinc concentrations in albacore, yellowfin tuna and bigeye tuna from the Atlantic Ocean

open access: yesCiencias Marinas, 2006
The concentrations of Hg, Cd, Pb, As, Cu and Zn were determined in 67 tuna samples from the Atlantic Ocean, in order to determine the concentrations present in different species and to evaluate possible risks for human health as a consequence of the ...
V Besada, JJ González, F Schultze
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]

open access: yesActa 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

Morphology and Distribution of Olfactory Receptor Neurons in Southern Bluefin Tuna, Thunnus maccoyii (Teleostei): Implications for Olfactory Hydrodynamics

open access: yesJournal of Morphology, Volume 287, Issue 5, May 2026.
The number and distribution of olfactory receptors over the olfactory lamellar surface of four juvenile southern bluefin tuna were quantified using scanning electron microscopy. The microvillous olfactory receptors (mORN) are concentrated in the rostral region of the lamellar surface, while ciliated olfactory receptors (cORN), which are dominant in ...
Myoung‐Hoon Ha   +5 more
wiley   +1 more source

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