Swordfish, Indian Ocean, Pelagic Longline

Xiphias gladius
Content last updated
21 May 2017
Stock
Swordfish
Management
IOTC
Stock Status
1 of 5
Very low risk
Management
3 of 5
Moderate risk
Bycatch
4 of 5
High risk
Habitat
1 of 5
Very low risk

Stock status

1 of 5
Very low risk

Swordfish in the Indian Ocean has been scored a very low risk.  The ratio of the current (2013) biomass to that needed to produce the maximum sustainable yield (MSY) was 3.10, indicating the population is not overfished. Fishing mortality rates (2013) were below FMSY levels (0.34) and therefore the population is not undergoing overfishing. Current fishing mortality is not expected to reduce the population over the next decade {IOTC 2016}.

Management

3 of 5
Moderate risk

The management of swordfish in the Indian Ocean has been scored a moderate risk. Current management measures for the swordfish in the Indian Ocean is considered sufficient. However, there are concerns with regional depletion in the southwestern Indian Ocean and calls for specific management measures in that region have not been addressed.

Bycatch

4 of 5
High risk

The bycatch risk for this fishery has been assessed as high risk. This is because longline fisheries operating in the Indian Ocean incidentally capture many other species, including sea birds, sea turtles and elasmobranchs. Observer coverage and data reporting rates of bycatch interactions are poor in this region. There are some management measures in place but their success in preventing interactions for most bycatch species is unknown.

Habitat

1 of 5
Very low risk

The seabed effects of the fishery are scored a very low risk. This is because pelagic longline gears fish at the surface and do not come in contact with bottom habitats.