Skipjack Tuna, Indian Ocean, Troll/pole and line
- Content last updated
- 20 August 2019
- Indian Ocean
- Stock Status
Very low risk
Very low risk
Indian Ocean skipjack tuna has been scored a very low risk. This is because the stock biomass is well above levels necessary to produce the maximum sustainable yield and fishing mortality rates are sustainable.
The management of skipjack tuna has been scored a low risk. The IOTC has adopted formal target reference points and adopted a harvest control rule for skipjack tuna. Scientific advice indicates current management measures are sufficient.
The bycatch in the skipjack tuna Indian Ocean troll, pole and line and handline fisheries has been scored a low risk. Bycatch and discards in troll, pole and line and hand line fisheries typically makes up a small proportion of the total catch (Kellher 2005) and bycatch of vulnerable species is not reported (Ardill et al 2011). Baitfish are typically used in troll and pole fisheries. The ratio of tuna to baitfish is around 30:1 and in most cases baitfishing makes up a small proportion of the total fishing mortality for baitfish species (Gillet 2012).
The habitat impact of the skipjack tuna Indian Ocean pelagic troll, pole and line and handline fishery has been scored as very low risk. In tuna fisheries, which target fish in open waters, there is not likely to be significant interaction with seabed habitats.