Discriminating among yellowfin tuna Thunnus albacares nursery areas in the Atlantic Ocean using otolith chemistry

2018 ◽  
Vol 603 ◽  
pp. 201-213 ◽  
Author(s):  
LL Kitchens ◽  
JR Rooker ◽  
L Reynal ◽  
BJ Falterman ◽  
E Saillant ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Otolith Chemistry ◽  
Nursery Areas

Relationship between the temporal-spatial distribution of longline fishing grounds of yellowfin tuna (Thunnus albacares) and the thermocline characteristics in the Central Atlantic Ocean

2013 ◽  
Vol 33 (19) ◽  
pp. 6345-6353
Author(s):  
杨胜龙 YANG Shenglong ◽  
马军杰 MA Junjie ◽  
张禹 ZHANG Yu ◽  
化成君 HUA Chengjun ◽  
戴阳 DAI Yang
Keyword(s):  
Spatial Distribution ◽  
Atlantic Ocean ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Central Atlantic

Spatial analysis of the horizontal and vertical distribution of yellowfin tuna Thunnus albacares in the tropical Atlantic Ocean

2015 ◽  
Vol 35 (15) ◽  
Author(s):  
杨胜龙 YANG Shenglong ◽  
马军杰 MA Junjie ◽  
吴晓芬 WU Xiaofeng ◽  
王晓璇 WANG Xiaoxuan ◽  
范秀梅 FAN Xiumei ◽  
...  
Keyword(s):  
Spatial Analysis ◽  
Atlantic Ocean ◽  
Vertical Distribution ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Tropical Atlantic ◽  
Tropical Atlantic Ocean ◽  
Horizontal And Vertical Distribution

scholarly journals Ocean variations associated with fishing conditions for yellowfin tuna (Thunnus albacares) in the equatorial Atlantic Ocean

2011 ◽  
Vol 68 (6) ◽  
pp. 1063-1071 ◽  
Author(s):  
Kuo-Wei Lan ◽  
Ming-An Lee ◽  
Hsueh-Jung Lu ◽  
Wei-Juan Shieh ◽  
Wei-Kuan Lin ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Net Primary Productivity ◽  
Principal Component ◽  
Yellowfin Tuna ◽  
Subsurface Water ◽  
Thunnus Albacares ◽  
Equatorial Atlantic ◽  
Catch Per Unit Effort ◽  
The North ◽  
Equatorial Atlantic Ocean

Abstract Lan, K-W., Lee, M-A., Lu, H-J., Shieh, W-J., Lin, W-K., and Kao, S-C. 2011. Ocean variations associated with fishing conditions for yellowfin tuna (Thunnus albacares) in the equatorial Atlantic Ocean. – ICES Journal of Marine Science, 68: 1063–1071. In this study, the Taiwanese longline (LL) fishery data were divided into two types: regular LL and deep LL. Furthermore, we collected environmental variables, such as sea surface temperature (SST), subsurface temperature, chlorophyll a concentration, net primary productivity, windspeed, and the north tropical Atlantic SST index (NTA) during the period 1998–2007 to investigate the relationship between LL catch data and oceanic environmental factors using principal component analysis (PCA). After the daily LL was separated into two types of LL, the results indicated that the deep LL was the major fishery catching yellowfin tuna (YFT) in the equatorial Atlantic Ocean. In 2003–2005, especially in 2005, the monthly catch by deep LL was double those of other years. The spatial distribution of the nominal catch per unit effort (cpue) by deep LL showed the maximum aggregation of YFT in waters with temperature above 24–25°C. The YFT mainly aggregated in the equatorial Atlantic, extending east in the first and second quarters of the year. In the third quarter of the year, the SST decreased off West Africa and the YFT migrated westwards to 15°W. Results of PCA indicated that higher subsurface water temperatures resulted in a deeper thermocline and caused a higher cpue of YFT, but the influence of NTA on the cpue of YFT seemed to be insignificant.

Population structure and ontogenetic habitat use of Micropogonias furnieri in the Southwestern Atlantic Ocean inferred by otolith chemistry

2021 ◽  
Vol 240 ◽  
pp. 105953
Author(s):  
Esteban Avigliano ◽  
Nadia M. Alves ◽  
M. Rita Rico ◽  
Claudio O. Ruarte ◽  
Luciana D’Atri ◽  
...  
Keyword(s):  
Population Structure ◽  
Atlantic Ocean ◽  
Habitat Use ◽  
Otolith Chemistry ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean ◽  
Micropogonias Furnieri
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