Aggregative behavior of blackfin tuna (Thunnus atlanticus) following a fishing boat in the southwestern tropical Atlantic Ocean
The blackfin tuna (Thunnus atlanticus) is a small epipelagic species restricted to the western and central Atlantic Ocean that has aggregative behavior, living in large schools usually associated with other tunas and commonly caught near moored Fish Aggregating Devices (FAD) or natural floating obj...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Instituto Oceanográfico da Universidade de São Paulo
2024-12-01
|
| Series: | Ocean and Coastal Research |
| Subjects: | |
| Online Access: | https://www.revistas.usp.br/ocr/article/view/232046 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850171126119923712 |
|---|---|
| author | Guelson Batista da Silva Paulo Victor do Nascimento Araújo |
| author_facet | Guelson Batista da Silva Paulo Victor do Nascimento Araújo |
| author_sort | Guelson Batista da Silva |
| collection | DOAJ |
| description |
The blackfin tuna (Thunnus atlanticus) is a small epipelagic species restricted to the western and central Atlantic
Ocean that has aggregative behavior, living in large schools usually associated with other tunas and commonly
caught near moored Fish Aggregating Devices (FAD) or natural floating objects. This work offers the first report
of a blackfin tuna school following a fishing boat serving as a drifting FAD in the southwestern tropical Atlantic
Ocean, which occurred during the tagging campaign for the Atlantic Ocean Tropical Tuna Tagging Program
(AOTTP) in May 2019. The blackfin tuna school followed the boat for approximately 190 nautical miles during
almost 60 hours. The school remained close to surface when the boat was in motion but moved to deeper
waters (60 m) in those few moments when the boat remained drifting. Along with the tagging activities, which
occurred mainly in the morning, we caught 17 blackfin tunas with size ranging from 46 to 58 cm fork length (FL)
(mean ± SD: 52.47 ± 3.35 cm FL) and weight ranged from 2.3 to 4.04 kg (3.2 ± 0.5 kg).
|
| format | Article |
| id | doaj-art-9012e2098f4a45759983f72f8e9c612b |
| institution | OA Journals |
| issn | 2675-2824 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Instituto Oceanográfico da Universidade de São Paulo |
| record_format | Article |
| series | Ocean and Coastal Research |
| spelling | doaj-art-9012e2098f4a45759983f72f8e9c612b2025-08-20T02:20:20ZengInstituto Oceanográfico da Universidade de São PauloOcean and Coastal Research2675-28242024-12-017210.1590/2675-2824072.23158Aggregative behavior of blackfin tuna (Thunnus atlanticus) following a fishing boat in the southwestern tropical Atlantic OceanGuelson Batista da SilvaPaulo Victor do Nascimento Araújo The blackfin tuna (Thunnus atlanticus) is a small epipelagic species restricted to the western and central Atlantic Ocean that has aggregative behavior, living in large schools usually associated with other tunas and commonly caught near moored Fish Aggregating Devices (FAD) or natural floating objects. This work offers the first report of a blackfin tuna school following a fishing boat serving as a drifting FAD in the southwestern tropical Atlantic Ocean, which occurred during the tagging campaign for the Atlantic Ocean Tropical Tuna Tagging Program (AOTTP) in May 2019. The blackfin tuna school followed the boat for approximately 190 nautical miles during almost 60 hours. The school remained close to surface when the boat was in motion but moved to deeper waters (60 m) in those few moments when the boat remained drifting. Along with the tagging activities, which occurred mainly in the morning, we caught 17 blackfin tunas with size ranging from 46 to 58 cm fork length (FL) (mean ± SD: 52.47 ± 3.35 cm FL) and weight ranged from 2.3 to 4.04 kg (3.2 ± 0.5 kg). https://www.revistas.usp.br/ocr/article/view/232046Tuna behaviorAssociated schoolsFishing boatsFADs |
| spellingShingle | Guelson Batista da Silva Paulo Victor do Nascimento Araújo Aggregative behavior of blackfin tuna (Thunnus atlanticus) following a fishing boat in the southwestern tropical Atlantic Ocean Ocean and Coastal Research Tuna behavior Associated schools Fishing boats FADs |
| title | Aggregative behavior of blackfin tuna (Thunnus atlanticus) following a fishing boat in the southwestern tropical Atlantic Ocean |
| title_full | Aggregative behavior of blackfin tuna (Thunnus atlanticus) following a fishing boat in the southwestern tropical Atlantic Ocean |
| title_fullStr | Aggregative behavior of blackfin tuna (Thunnus atlanticus) following a fishing boat in the southwestern tropical Atlantic Ocean |
| title_full_unstemmed | Aggregative behavior of blackfin tuna (Thunnus atlanticus) following a fishing boat in the southwestern tropical Atlantic Ocean |
| title_short | Aggregative behavior of blackfin tuna (Thunnus atlanticus) following a fishing boat in the southwestern tropical Atlantic Ocean |
| title_sort | aggregative behavior of blackfin tuna thunnus atlanticus following a fishing boat in the southwestern tropical atlantic ocean |
| topic | Tuna behavior Associated schools Fishing boats FADs |
| url | https://www.revistas.usp.br/ocr/article/view/232046 |
| work_keys_str_mv | AT guelsonbatistadasilva aggregativebehaviorofblackfintunathunnusatlanticusfollowingafishingboatinthesouthwesterntropicalatlanticocean AT paulovictordonascimentoaraujo aggregativebehaviorofblackfintunathunnusatlanticusfollowingafishingboatinthesouthwesterntropicalatlanticocean |