Results 141 to 150 of about 683 (172)
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Polymer assisted isolation of hydroxyapatite from Thunnus obesus bone
Ceramics International, 2011Abstract The combination of micro and nanostructured hydroxyapatite (HAp) was isolated from Thunnus obesus bone via thermal calcination method in the presence of polymers such as poly ethylene glycol (PEG), poly (ethylene glycol)-block-poly (propylene glycol)-block-poly (ethylene glycol) (PEG–PPG–PEG) and poly vinyl alcohol (PVA).
Ramjee Pallela +2 more
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Operational modelling of bigeye tuna ( Thunnus obesus ) spatial dynamics in the Indonesian region
Marine Pollution Bulletin, 2018With INDESO, Indonesia has implemented a system for the monitoring and management of its tuna resources. Despite increasing catch, very few is known about the dynamics and real abundance of tuna species in the Indonesian waters and adjacent oceanic regions.
P. Lehodey +7 more
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Guanine and its retinal distribution in the tapetum of the bigeye tuna, Thunnus obesus
Ichthyological Research, 2000The eye of the bigeye tuna (Thunnus obesus) contains a retinal tapetum composed of guanine. The total amount of the guanine in one eye of the fish (SL=120 cm) was about 88.6 mg. The mean guanine content of the tapetum was approximately 1.25 mg/cm2 of the retinal surface.
Hiroaki Somiya +2 more
openaire +1 more source
International Journal of Biological Macromolecules, 2019
Fish collagen is gaining immense interest because the use of mammalian collagen is restricted due to disease transmission and religious issues. So, collagen was extracted and characterized from three different parts (skin, scale, and bone) of bigeye tuna using the acid and pepsin extraction methods.
Raju, Ahmed +2 more
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Fish collagen is gaining immense interest because the use of mammalian collagen is restricted due to disease transmission and religious issues. So, collagen was extracted and characterized from three different parts (skin, scale, and bone) of bigeye tuna using the acid and pepsin extraction methods.
Raju, Ahmed +2 more
openaire +2 more sources
Reproductive biology of female bigeye tunaThunnus obesusin the western Pacific Ocean
Journal of Fish Biology, 2013The reproductive biology of female bigeye tunaThunnus obesuswas assessed by examining 888 fish (ranging from 84·9 to 174·4 cm fork length,LF) caught by Taiwanese offshore longliners in the western Pacific Ocean from November 1997 to November 1998 and November to December 1999 and 258 gonad samples from these fish.
C L, Sun +4 more
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Age and growth of Bigeye tuna (Thunnus obesus) in the Western Indian Ocean
2004The age and growth of bigeye tuna (Thunnus obesus) from the Western Indian Ocean were investigated using otoliths and first dorsal spines. Microincrements, assumed as daily deposits, were observed on transverse sections of sagittal otoliths from 164 bigeye tuna. The increments were counted to determine age and establish a growth curve.
Stéquert, Bernard, Conand, François
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Canadian Journal of Fisheries and Aquatic Sciences, 2020
Estimates of age and growth of yellowfin (Thunnus albacares) and bigeye (Thunnus obesus) tuna remain problematic because validation of growth zone deposition (opaque and translucent) has not been properly evaluated. Otolith growth structure (zone clarity) can be poorly defined for tropical tunas, but the use of bomb radiocarbon dating has validated ...
Andrews, Allen H. +5 more
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Estimates of age and growth of yellowfin (Thunnus albacares) and bigeye (Thunnus obesus) tuna remain problematic because validation of growth zone deposition (opaque and translucent) has not been properly evaluated. Otolith growth structure (zone clarity) can be poorly defined for tropical tunas, but the use of bomb radiocarbon dating has validated ...
Andrews, Allen H. +5 more
openaire +1 more source
Fisheries Research, 2013
a b s t r a c t Bigeye tuna (Thunnus obesus) and yellowfin tuna (Thunnus albacares) support two of the most important fisheries in the Indian Ocean. However, there is little research evaluating harvest control rules (HCRs) for their management. In this study we evaluated four HCRs, 'knife-edged', 'linear', 'convex', and 'concave', for these two species.
Yuying Zhang +4 more
openaire +1 more source
a b s t r a c t Bigeye tuna (Thunnus obesus) and yellowfin tuna (Thunnus albacares) support two of the most important fisheries in the Indian Ocean. However, there is little research evaluating harvest control rules (HCRs) for their management. In this study we evaluated four HCRs, 'knife-edged', 'linear', 'convex', and 'concave', for these two species.
Yuying Zhang +4 more
openaire +1 more source
Updated growth models for bigeye tuna (Thunnus obesus) in the Atlantic Ocean
Fisheries Research, 2022Lynn Waterhouse +10 more
openaire +1 more source