Last updated on 19 July 2009
A comprehensive nation-wide biological stock assessment is not available for shrimp, but there are a few on a regional scale that is limited in geographic scope, and therefore not representative of the country situation. These stock assessments are mainly based on yield, mainly based on research vessels or historical harvest data of large commercial fishing vessels. In addition to that, some stock density estimates also have been made for a few Fisheries Management Areas (FMAs). These studies have raised concerns about indications of overfishing.
Last updated on 18 July 2009
In 2005, the National Commission for Fish Stocks was formed. Previously there has been no such commission, and there was no outlet for systematically offering advice to the government. The current Commission is made of government officials, academics, industry representatives and others, and has released several recommendations for the government. In general, scientific advice for TAC is set at level of 80% of MSY, estimated to be 95 thousand t for all penaeid shrimps nationally.
Last updated on 18 Jul 2009
In general, wild penaeid shrimps have a short life span. By 6 months they reach maturity, reaching the peak for commercial harvesting at age one. At 24 months, if they have not been harvested, they die. Population biological parameters are not available for all shrimp fisheries. At the sub-national level, some estimates of biomass were made, for example for the Arafura Sea, using harvest data from 1991 to 1998 provided by the association of shrimp trawlers (FAO, 2001).
Last updated on 26 October 2011
Since there are no set biological reference points, the status of Indonesian penaeid shrimp population cannot be determined against the reference points.However, some approaches to estimate population status can be done using some other available parameters, such as utilization level.Based on utilization level, it is noted that many of Indonesia’s penaeid shrimps stocks status is overfished or fully utilized. Shrimp harvests are fished beyond the maximum sustainable yield. Harvest level in 2001 was almost three-fold the MSY level.
Last updated on 26 Oct 2011
The main shrimp species harvested commercially in Indonesia are from the penaeidae family, the main ones of which are endeavor shrimps, Metapenaeus ensis and M. monoceros; banana shrimps, Penaeus merguiensis and P. indicus; and jumbo/tiger shrimps, P. monodon, P. semisulcatus, and P. esculentus. In recent years, additional categories have been included in national statistics, i.e. tiger cat/rainbow shrimp (Parapenaeopsis sculptitis) and king/blue legged prawn (Penaeus latisulcatus). Some other species are also harvested, but reported under the ‘Others’ category, which make up the largest grouping of shrimp harvest. In the latest report released in 2007, the MMAF indicate that there has been a reduction in the production of shrimp to 260 thousand tonnes, compared to the 2001 of 274 tonnes. In terms of the harvest composition, there are some changes, however nothing conclusive can be drawn about the pattern without further investigation.
Between 1992 and 2000, the number of shrimp trawlers doubled and the number of fish trawlers more than tripled, however, during that period, total recorded annual landings from the Arafura Sea only rose by little more than a third for shrimp (from around 18,000 to 25,000 tonnes) and by slightly more than half for fish (from 170,000 to 262,000 tonnes). The fact that the annual recorded landings for shrimp and fish did not increase in line with the increase in number of licensed vessels provides evidence of overfishing.