Study of The Composition of Shrimp Gillnet Catches (Trammel Net) in Tanjung Tengah Waters, North Penajam Paser Regency

Abstract

The people of Central Tanjung sub-district have a livelihood as fishermen. The type of fishing gear used by fisherman in Central Tanjung is Trammel net. Trammel net fishing gear used by fisherman is yellow fishing gear. The purpose of this study was to determine the composition of the catches of shrimp gillnets in Central Tanjung sub-district. This research was conducted from February to March 2023. Determination of fishing locations was determined based on the fishing point of the fisherman, using a survey method. Data analysis used catch composition, diversity index, uniformity index, dominance index. The construction of the shrimp nets generally consists of upper and lower ropes, buoys, sinker, float, outer and inner layers of netting, ballast ropes and selvedge. The catches obtained has a totally 14,7 kg, include shrimp, fish, crab and shell fish. The types of fish and shrimp obtained were red shrimp (Metapenaeus rosea), Mantis shrimp (Harpiosquilla raphidea), tiger shrimp (Penaeus monodon), kurisi fish (Nemipterus nematophorus), petek fish (Leiognathidae sp.), swanggi fish (Priachanthus macracanthus), Scallops (Pectinidae sp.), Blue crab (Portunidae sp.). The highest percentage value for fish is 61%, shrimp is 33% and the lowest is for clams and crabs by 5% and 1% where shell fish and crab are not the main targets for catching shrimp gillnets.