Summary
We report the preliminary analysis of migration of Atlantic bluefin tuna which was tagged and released from the area off Ireland. This individual was caught on 29 th September 2007 and released after the attachment of popup archival tag (PAT) at the location (48-16N, 11-50W). The length estimated by...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.529.496 2023-05-15T17:34:33+02:00 Summary Yasuko Semba Yukio Takeuchi The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.529.496 http://www.iccat.int/Documents/Meetings/Docs/SCRS/SCRS-08-179_Semba_Takeuchi.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.529.496 http://www.iccat.int/Documents/Meetings/Docs/SCRS/SCRS-08-179_Semba_Takeuchi.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.iccat.int/Documents/Meetings/Docs/SCRS/SCRS-08-179_Semba_Takeuchi.pdf text ftciteseerx 2016-01-08T10:30:17Z We report the preliminary analysis of migration of Atlantic bluefin tuna which was tagged and released from the area off Ireland. This individual was caught on 29 th September 2007 and released after the attachment of popup archival tag (PAT) at the location (48-16N, 11-50W). The length estimated by eye was 160cm (FL). On the 29 th March 2008, this tag was popped off 6 months after the release as programmed, and transmitted the data for past 6 months. This individual conducted trans-Atlantic movement from the eastern to the western north Atlantic. Based on the distinct temporal pattern of maximum diving depth and average temperature (both on daily basis), we identified three phases in movement pattern as follows. In the first phase (9/29-1/26), this individual stayed in the relatively limited area with shallow vertical movement in the warm water, and embarked on the long distance movement to the west with deep vertical movement in the cold water in the second phase (1/27-2/6), and it stopped the large movement and stayed in the terminal area with shallow vertical movement in the cold water in the third phase (2/7-3/29). The oceanographic feature may be associated with this change of behavior, which needs to be confirmed in the future. In this result, the link between the eastern foraging ground and the western breeding area was not confirmed but the intercommunication between east and west in the Atlantic was supported. Text North Atlantic Unknown |
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description |
We report the preliminary analysis of migration of Atlantic bluefin tuna which was tagged and released from the area off Ireland. This individual was caught on 29 th September 2007 and released after the attachment of popup archival tag (PAT) at the location (48-16N, 11-50W). The length estimated by eye was 160cm (FL). On the 29 th March 2008, this tag was popped off 6 months after the release as programmed, and transmitted the data for past 6 months. This individual conducted trans-Atlantic movement from the eastern to the western north Atlantic. Based on the distinct temporal pattern of maximum diving depth and average temperature (both on daily basis), we identified three phases in movement pattern as follows. In the first phase (9/29-1/26), this individual stayed in the relatively limited area with shallow vertical movement in the warm water, and embarked on the long distance movement to the west with deep vertical movement in the cold water in the second phase (1/27-2/6), and it stopped the large movement and stayed in the terminal area with shallow vertical movement in the cold water in the third phase (2/7-3/29). The oceanographic feature may be associated with this change of behavior, which needs to be confirmed in the future. In this result, the link between the eastern foraging ground and the western breeding area was not confirmed but the intercommunication between east and west in the Atlantic was supported. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Yasuko Semba Yukio Takeuchi |
spellingShingle |
Yasuko Semba Yukio Takeuchi Summary |
author_facet |
Yasuko Semba Yukio Takeuchi |
author_sort |
Yasuko Semba |
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url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.529.496 http://www.iccat.int/Documents/Meetings/Docs/SCRS/SCRS-08-179_Semba_Takeuchi.pdf |
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North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://www.iccat.int/Documents/Meetings/Docs/SCRS/SCRS-08-179_Semba_Takeuchi.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.529.496 http://www.iccat.int/Documents/Meetings/Docs/SCRS/SCRS-08-179_Semba_Takeuchi.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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