scholarly journals Reproductive potential of Yellowfin Tuna (Thunnus albacares) in the western Indian Ocean

2013 ◽  
Vol 111 (3) ◽  
pp. 252-264 ◽  
Author(s):  
Iker Zudaire ◽  
Hilario Murua ◽  
Maitane Grande ◽  
Nathalie Bodin
Keyword(s):  
Indian Ocean ◽  
Reproductive Potential ◽  
Western Indian Ocean ◽  
Yellowfin Tuna ◽  
Thunnus Albacares

scholarly journals Accumulation and mobilization of lipids in relation to reproduction of yellowfin tuna (Thunnus albacares) in the Western Indian Ocean

2014 ◽  
Vol 160 ◽  
pp. 50-59 ◽  
Author(s):  
Iker Zudaire ◽  
Hilario Murua ◽  
Maitane Grande ◽  
Fabrice Pernet ◽  
Nathalie Bodin
Keyword(s):  
Indian Ocean ◽  
Western Indian Ocean ◽  
Yellowfin Tuna ◽  
Thunnus Albacares

Fecundity regulation strategy of the yellowfin tuna (Thunnus albacares) in the Western Indian Ocean

2013 ◽  
Vol 138 ◽  
pp. 80-88 ◽  
Author(s):  
Iker Zudaire ◽  
Hilario Murua ◽  
Maitane Grande ◽  
Maria Korta ◽  
Haritz Arrizabalaga ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Western Indian Ocean ◽  
Yellowfin Tuna ◽  
Thunnus Albacares

scholarly journals REPRODUCTION ASPECTS OF THE YELLOWFIN TUNA (Thunnus albacares)

2012 ◽  
Vol 4 (1) ◽  
Author(s):  
Retno Andamari ◽  
Jhon Haryanto Hutapea ◽  
Budi Iskandar Prisantoso
Keyword(s):  
Indian Ocean ◽  
Early Development ◽  
Histological Analysis ◽  
Yellowfin Tuna ◽  
Oocyte Development ◽  
Female Gonad ◽  
Thunnus Albacares ◽  
Multiple Spawner ◽  
Development Level ◽  
Biological Reproduction

<p>Tuna is one of the important fishery commodities in Indonesia, including tuna caught by longliners in Indian Ocean. The most popular of tuna is yellowfin tuna (Thunnus albacares). Currently, the production of tuna based on the capture fisheries, therefore, in order to preserve its sustainability, the understanding of the biological and reproduction aspect is required. Research on the biological reproduction of this species was conducted at Gondol Research Institute for Mariculture. Samples of female gonad were collected from Indian Ocean tuna longliners during April to July 2009 from the processing companies within Benoa Port. Result of the histological analysis on 128 female gonads showed that majority of gonads were at the early development level and the only 16 gonads have reached at the mature level. The analysis of the oocyte development showed the asynchronous, indicating that yellowfin tuna is a multiple spawner.</p><p>Keywords: yellowfin tuna, gonad, asynchronous</p>

scholarly journals Genomic analysis reveals multiple mismatches between biological and management units in yellowfin tuna (Thunnus albacares)

2018 ◽  
Vol 75 (6) ◽  
pp. 2145-2152 ◽  
Author(s):  
Rachel B Mullins ◽  
Niall J McKeown ◽  
Warwick H H Sauer ◽  
Paul W Shaw
Keyword(s):  
Indian Ocean ◽  
Genomic Analysis ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Management Units ◽  
Spawning Site ◽  
Asymmetric Dispersal ◽  
Outlier Loci ◽  
The Indian Ocean ◽  
Mixed Stock

Abstract The South African (SAF) yellowfin tuna (Thunnus albacares) fishery represents a potential example of misalignment between management units and biological processes. The SAF fishery spans an operational stock with a boundary at 20°E, either side of which fish are considered part of Atlantic or Indian Ocean regional stocks. However, the actual recruitment of fish from Atlantic and Indian Ocean spawning populations into SAF waters is unknown. To address this knowledge gap, genomic analysis (11 101 SNPs) was performed on samples from Atlantic and Indian Ocean spawning sites, including SAF sites spanning the current stock boundary. Outlier loci conferred high discriminatory power to assignment tests and revealed that all SAF fish were assigned to the Indian Ocean population and that no Atlantic Ocean fish appeared in the SAF samples. Additionally, several Indian Ocean migrants were detected at the Atlantic spawning site demonstrating asymmetric dispersal and the occurrence of a mixed-stock fishery in Atlantic waters. This study highlights both the spatial inaccuracy of current stock designations and a misunderstanding of interactions between the underlying biological units, which must be addressed in light of local and global declines of the species. Specifically, the entire SAF fishery must be managed as part of the Indian Ocean stock.

The relationship between the temporal-spatial distribution of fishing ground of yellowfin tuna (Thunnus albacares) and themocline characteristics in the tropic Indian Ocean

2012 ◽  
Vol 32 (3) ◽  
pp. 671-679 ◽  
Author(s):  
杨胜龙 YANG Shenglong ◽  
张禹 ZHANG Yu ◽  
张衡 ZHANG Heng ◽  
王栋 WANG Dong ◽  
马军杰 Ma Junjie ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Indian Ocean ◽  
Yellowfin Tuna ◽  
Fishing Ground ◽  
Thunnus Albacares ◽  
The Relationship
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