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Prelims level: Atlantic Bluefin Tuna
Why in the News?
The Atlantic bluefin tuna, already heavily overfished, now faces a new threat from warming seas, causing it to migrate further north.
Atlantic Bluefin Tuna (Thunnus thynnus)
| Details | |
| Scientific Classification | Family: Scombridae; Species: Thunnus thynnus. |
| Common Names | Northern bluefin tuna, Giant bluefin tuna (for individuals over 150 kg), formerly known as “tunny”. |
| Habitat and Range | Western and Eastern Atlantic Ocean, Mediterranean Sea; extinct in the Black Sea. |
| Size | Can weigh up to 680 kg; one of the largest Perciformes. |
| Commercial Importance | Highly valued in the Japanese market for sushi and sashimi; foundation of a major global fishery. |
| Conservation Status | Overfished; dramatic stock declines (72% in Eastern Atlantic, 82% in Western Atlantic);
Moved to “Least Concern” by IUCN in 2021 due to some population recovery; Proposed for CITES Appendix I. |
PYQ:[2015] With reference to the International Union for Conservation of Nature and Natural Resources (IUCN) and the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), which of the following statements is/are correct? 1. IUCN is an organ of the United Nations and CITES is an international agreement between governments 2. IUCN runs thousands of field projects around the world to better manage natural environments. 3. CITES is legally binding on the States that have joined it, but this Convention does not take the place of national laws. Select the correct answer using the codes given below: (a) 1 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3 |
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