



U.S. fisheries are classified under the Marine Mammal Protection Act according to the level of incidental mortality or serious injury of marine mammals.
Gear Type |
Purse seine |
Category |
II |
Estimated Number of Participants |
Purse seine - 34; Troll - 0 |
Target Species |
Albacore tuna |
Applicable Take Reduction Plans |
N/A |
Observer Coverage |
Under the SPTT, observers are recruited from the Pacific Island Countries and then trained and deployed by the Forum Fisheries Agency (FFA) in Honiara in the Solomon Islands. Many of the FFA deployed observers serve in and have experience from domestic observer programs active in each observer’s respective country. The target observer level coverage is 20% of U.S. purse seine vessels, the full costs of which are the responsibility of the U.S. purse seine vessel owners. |
Marine Mammal Species/Stocks Killed or Injured |
Bottlenose dolphin, unknown; Blue whale, unknown; Bryde’s whale, unknown; False killer whale, unknown; Fin whale, unknown; Indo-Pacific dolphin; Long-beaked common dolphin, unknown; Melon-headed whale, unknown; Minke whale, unknown; Pantropical spotted dolphin, unknown; Pygmy killer whale, unknown; Risso’s dolphin, unknown; Rough-toothed dolphin, unknown; Sei whale, unknown; Short-finned pilot whale, unknown; Sperm whale, unknown; Spinner dolphin, unknown; |
1 Indicates the stock or species is driving the classification of the fishery.
While there is a formal observer program for fishing in the South Pacific Tuna Treaty (SPTT) area, information on marine mammal stock abundance in the area is scarce and observer reports of interactions between marine mammals and fisheries are not yet specific enough to determine the level of marine mammal mortality and serious injury.
The SPTT manages access of U.S. purse seine vessels targeting tuna (skipjack and yellowfin) within the Exclusive Economic Zones (EEZ) of 16 Pacific Island Countries in the Western and Central Pacific Ocean that are party to the Treaty. The SPTT Area includes the waters from north of 60° S. lat. and east of 90° E. long. subject to the fishing jurisdiction of Pacific Island parties, and all waters within rhumb lines connecting multiple geographic coordinates, and north along the 152° E. long. out to the border of the Australian EEZ. The Treaty Area includes portions of waters in the EEZs of most of the Pacific Island Countries included in the Treaty.
The SPTT was intended to apply only to U.S. purse seine vessels; however, provisions have been made to accommodate high seas fishing by U.S. albacore tuna troll and U.S. longline vessels within the Treaty Area.
Both a SPTT and a High Seas Fishing Compliance Act (HSFCA) permit are required to fish in SPTT waters.
Original Category (Year added to the LOF) |
Category II - all gear types (2009) |
Original Number of Participants |
Purse seine- 23; Longline- 2; Troll- 1 |
Basis for Original Classification |
While there was a formal observer program for fishing in the SPTT area, information on marine mammal stock abundance in the area was scarce and observer reports of fishery interactions were not specific enough to determine the level of marine mammal serious injury and mortality. Therefore, all gear types were listed as Category II, the appropriate classification for new fisheries on the LOF for which there is little information on which to base a classification. |
Past Names |
South Pacific tuna purse seine |
Species/stocks historically documented as killed or injured (but not currently on the list) |
Humpback whale, unknown |
2023 |
Purse Seine:
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2022 |
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2021 |
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2020 |
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2019 |
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2018 |
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2017 |
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2016 |
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2015 |
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2014 |
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2013 |
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2012 |
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2011 |
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2010 |
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