Ecological connectivity between tropical spiny lobster and habitat typology in Gulf of Prigi, Dist

Abstract

Lobster is one of the main fishery commodities in Gulf of Prigi and Damas, distric of Trenggalek. The potential is not independent from the typology of coastal ecosystems that support them. This study aims to determine the ecological linkages between the resources of the typology lobster habitat. The study was conducted during 2015 using the method of observation. The results showed that the Gulf of Prigi and Damas dominated by coral reef ecosystems with percent coral cover in the range of 65-75%. Coral types dominated by the type of branching, encrusting, massive, foliaceous, soft coral, sponges, algae, gorgonians, algae coralin. Juvenile phase of lobster and pre-adult prefer a depth <10 m spread along the rocky coastal waters, with an abundance ranged between 0.32-0.64 ind/m3 of type Panulirus homarus, P. ornatus, P. penicillatus, P. longipes and P. versicolor. While adults lobster tend to like deeper waters (20-30 m) with the type of habitat is wall with an abundance ranges 0.32-0.48 ind/m3. P. ornatus and P. versicolor are two types with the highest abundance (0.48 ind/m3).

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