Berita & Publikasi

Shrimp in South Sorong is Dominated by Juvenille

Author: Mansur(Fisheries Enumerator, WWF-Indonesia), Yuslan Kelibay(Fisheries Enumerator, WWF-Indonesia) -  


The dense mangrove ecosystem with preserved sustainability makes South Sorong Regency has potential fisheries resources, one of which is shrimp. Common types caught by fisher are banana shrimp (Penaeus merguiensis), tiger shrimp (Penaeus monodon) and ende shrimp (Metapenaeus endeavouri). These three types of shrimp are excellent fishery commodities both in national and international markets so that ‘do not be surprised if this commodity becomes the target of fisher’s catch, without exception the fisher in Konda District, South Sorong Regency, West Papua Province.

To catch shrimp, fisher in Konda District use: a) 1-3 GT motorboats; and b) layered gill nets (trammel net) with specifications for mesh measuring 1.4 cm, 2 meters high, and 70 m ris rope. However, the practice of shrimp capture in Konda Subdistrict has not yet followed good fishing rules, so that it can threaten the sustainability of shrimp resources at a time.

Supporting the government in its efforts to improve fisheries (FIP), WWF-Indonesia through its USAID Sustainable Ecosystems Advanced (USAID SEA) project records fisheries resources, one of which is the catch of wild shrimp in Konda District. To find out the condition of the stock or status of wild caught shrimp, the enumerator team took data: a) shrimp catch production; b) composition of the size distribution of shrimp; and c) shrimp reproductive biology. The data was taken when the fisher landed their catches to the collectors.

The data collection results confirm that the dominant type of shrimp caught by fisher in Konda District is banana shrimp with a total production in 2018 of 120,191 kg. If viewed from the aspect of reproduction, most of the shrimp are dominated by juvenile shrimp (not yet in the productive period), especially catches from August to November 2018. The technique of observing the level of gonad maturity (TKG) refers to Motoh (1981), namely TKG 1 and 2 which means it is not ready to spawn (teenagers) and TKG 3 and 4 which means they are ready to spawn (adults).

he data collection results confirm that the dominant type of shrimp caught by fisher in Konda District is banana shrimp with a total production in 2018 of 120,191 kg. If viewed from the aspect of reproduction, most of the shrimp are dominated by juvenile shrimp (not yet in the productive period), especially catches from August to November 2018. The technique of observing the level of gonad maturity (TKG) refers to Motoh (1981), namely TKG 1 and 2 which means it is not ready to spawn (teenagers) and TKG 3 and 4 which means they are ready to spawn (adults).At least 572 samples of female banana shrimp were taken during August-November 2018. These samples were taken separately, namely as many as 143 tails every month. The total sample consisted of: a) 443 (77.4%) in the TKG 1 and 2 categories; and b) 129 tails (22.6%) in the TKG 3 and 4 categories. Meanwhile, when viewed from the composition of the size, the highest size of the distribution of shrimp carapace length is dominated by those measuring 2.7-2.8 cm.  The large number of juvenile shrimp caught by fisher indicates a high frequency of catching and a small amount of adult shrimp stock. If juvenile shrimp are captured continuously, it is less likely for shrimp resources to produce new tillers.Ideally, the shrimp used or captured is adult shrimp. Because at this level, we can give them the opportunity to produce saplings. Another important aspect is the availability of stock in the fishing area so as not to suppress shrimp resources. Using the Better Management Practice (BMP) guide: Catching Eco-Friendly Shrimp, WWF-Indonesia supports fisher to start fishing activities that are environmentally friendly and responsible. In the guide, there are steps for: a) the process of preparing sea activities; b) good fishing techniques; and c) the process of handling shrimp to produce good catch quality. It can also support the fisheries improvement program in South Sorong as well as the Inebikia Teo Waters Conservation Area which has been declared in Decree No. 523/25/1/2019 concerning the Reserve of the Thousand and One Teo Enebikia Rivers by the Governor of West Papua in February 2019.

Recent News