Habitat and behaviour of adult yellowfin tuna (Thunnus albacares) in the waters off southwestern Taiwan determined by pop-up satellite archival tags
Yellowfin tuna (Thunnus albacares) is an economically important species for longline and trolling fisheries in the waters off the southwestern coast of Taiwan, yet this species' movement patterns remain poorly understood. This study provides the first information on the movement and behaviour o...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2017-01-01
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| Series: | Aquatic Living Resources |
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| Online Access: | https://www.alr-journal.org/articles/alr/full_html/2017/01/alr170057/alr170057.html |
| _version_ | 1797698169314738176 |
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| author | Weng Jinn-Shing Lee Ming-An Liu Kwang-Ming Huang Hsing-Han Wu Long-Jing |
| author_facet | Weng Jinn-Shing Lee Ming-An Liu Kwang-Ming Huang Hsing-Han Wu Long-Jing |
| author_sort | Weng Jinn-Shing |
| collection | DOAJ |
| description | Yellowfin tuna (Thunnus albacares) is an economically important species for longline and trolling fisheries in the waters off the southwestern coast of Taiwan, yet this species' movement patterns remain poorly understood. This study provides the first information on the movement and behaviour of adult yellowfin tuna using pop-up satellite archival tags in the waters off the southwestern coast of Taiwan. In total, 11 tuna (ranging from 116 to 135 cm in fork length) were tagged and released from 2011 to 2013. Seven fish were successfully tracked to provide information on depth and temperature preferences as well as horizontal movements. The majority of the vertical movements (30.3%) of yellowfin tuna occurred in the 50-m depth range in mixed layers. The mean swimming depth was 74.4 m (±50.7 m) during the daytime and 94 m (±72.5 m) at nighttime, which was a contrast to the findings in other waters. The maximum diving depth was 1000 m, where the water temperature was approximately 4 °C. This value was similar to the measurements made by a CTD near a depth of 1000 m, where the water temperature was approximately 4.2 °C and the O2 level was 3.0 mg l−1. One of the tuna travelled 190 NM (straight distance) in 37 days, with most of its horizontal movements (70.6%) occurring at temperatures that ranged from 26 to 28 °C, suggesting that yellowfin tuna have a preference for this temperature range throughout the period of PAST observation. |
| first_indexed | 2024-03-12T03:50:29Z |
| format | Article |
| id | doaj.art-5912889c066243c9a642104fe46d36c1 |
| institution | Directory Open Access Journal |
| issn | 1765-2952 |
| language | English |
| last_indexed | 2024-03-12T03:50:29Z |
| publishDate | 2017-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Aquatic Living Resources |
| spelling | doaj.art-5912889c066243c9a642104fe46d36c12023-09-03T12:22:04ZengEDP SciencesAquatic Living Resources1765-29522017-01-01303410.1051/alr/2017034alr170057Habitat and behaviour of adult yellowfin tuna (Thunnus albacares) in the waters off southwestern Taiwan determined by pop-up satellite archival tagsWeng Jinn-Shing0Lee Ming-An1Liu Kwang-Ming2Huang Hsing-Han3Wu Long-Jing4Coastal and Offshore Resources Research Center, Fisheries Research Institute Council of Agriculture, Executive YuanDepartment of Environmental Biology and Fisheries Science, National Taiwan Ocean UniversityInstitute of Marine Affairs and Resource Management, National Taiwan Ocean UniversityCoastal and Offshore Resources Research Center, Fisheries Research Institute Council of Agriculture, Executive YuanCoastal and Offshore Resources Research Center, Fisheries Research Institute Council of Agriculture, Executive YuanYellowfin tuna (Thunnus albacares) is an economically important species for longline and trolling fisheries in the waters off the southwestern coast of Taiwan, yet this species' movement patterns remain poorly understood. This study provides the first information on the movement and behaviour of adult yellowfin tuna using pop-up satellite archival tags in the waters off the southwestern coast of Taiwan. In total, 11 tuna (ranging from 116 to 135 cm in fork length) were tagged and released from 2011 to 2013. Seven fish were successfully tracked to provide information on depth and temperature preferences as well as horizontal movements. The majority of the vertical movements (30.3%) of yellowfin tuna occurred in the 50-m depth range in mixed layers. The mean swimming depth was 74.4 m (±50.7 m) during the daytime and 94 m (±72.5 m) at nighttime, which was a contrast to the findings in other waters. The maximum diving depth was 1000 m, where the water temperature was approximately 4 °C. This value was similar to the measurements made by a CTD near a depth of 1000 m, where the water temperature was approximately 4.2 °C and the O2 level was 3.0 mg l−1. One of the tuna travelled 190 NM (straight distance) in 37 days, with most of its horizontal movements (70.6%) occurring at temperatures that ranged from 26 to 28 °C, suggesting that yellowfin tuna have a preference for this temperature range throughout the period of PAST observation.https://www.alr-journal.org/articles/alr/full_html/2017/01/alr170057/alr170057.htmlpop-up satellite archival taghabitatvertical movementhorizontal movement |
| spellingShingle | Weng Jinn-Shing Lee Ming-An Liu Kwang-Ming Huang Hsing-Han Wu Long-Jing Habitat and behaviour of adult yellowfin tuna (Thunnus albacares) in the waters off southwestern Taiwan determined by pop-up satellite archival tags Aquatic Living Resources pop-up satellite archival tag habitat vertical movement horizontal movement |
| title | Habitat and behaviour of adult yellowfin tuna (Thunnus albacares) in the waters off southwestern Taiwan determined by pop-up satellite archival tags |
| title_full | Habitat and behaviour of adult yellowfin tuna (Thunnus albacares) in the waters off southwestern Taiwan determined by pop-up satellite archival tags |
| title_fullStr | Habitat and behaviour of adult yellowfin tuna (Thunnus albacares) in the waters off southwestern Taiwan determined by pop-up satellite archival tags |
| title_full_unstemmed | Habitat and behaviour of adult yellowfin tuna (Thunnus albacares) in the waters off southwestern Taiwan determined by pop-up satellite archival tags |
| title_short | Habitat and behaviour of adult yellowfin tuna (Thunnus albacares) in the waters off southwestern Taiwan determined by pop-up satellite archival tags |
| title_sort | habitat and behaviour of adult yellowfin tuna thunnus albacares in the waters off southwestern taiwan determined by pop up satellite archival tags |
| topic | pop-up satellite archival tag habitat vertical movement horizontal movement |
| url | https://www.alr-journal.org/articles/alr/full_html/2017/01/alr170057/alr170057.html |
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