The differences of depth on the species composition of Spiny Lobster Puerulus on South Pacitan Regency, East Java

A Setyanto,K A Pambudi,W A Saputra,A Tumulyadi,B Semedi

doi:10.1051/e3sconf/202015301008

Abstract

Lobster resources is the one of renewable resources but if catches are increasing without any control will cause a depleted resource. Catching lobsters is not only for adult phase but for all phases are captured. The purpose of this study to determine composition of lobster seeds between depths which has a high value of lobster seeds collection so that it can be used as a reference for lobster protection in nature. This research was conducted in January – February 2019, located in Wawaran beach waters, Pacitan. The statistical method used in this research are Chi-Square and Kruskall-Wallis analysis. Based on the results of atractror puerulus lobster in two different depths (14 and 20 meter) in Wawaran beach waters found that there are 4 species puerulus, i.e. Panulirus homarus, Panulirus penicillatus, Panulirus ornatus and Panulirus versicolor. It was found that different depths did not affect the composition of the collected puerulus species. Then the Kruskal-Wallis test at 14 meters and 20 meters depth found a significant difference in the value of each type of lobster. The type of puerulus from Panulirus homarus has the dominant results compared than the other three species.

Highlights

Asia Region have a high potential of fisheries sector
The survey was conducted from January to February 2019 in Wawaran beach, Kebonagung, Pacitan of East Java, Indonesia
Puerulus lobster species were caught and recorded during the research process can be seen below : 1. Ornate Lobster (Panulirus ornatus) It has the characteristics of an antenna that has a bulb lit in the dark and there is a black ring in the middle of the antenna

Summary

Introduction

Asia Region have a high potential of fisheries sector. Around 70 percent of Asia’s fisheries production comes from the South East Asia countries[1]. The most valuable fisheries group is lobsters. Lobsters have high economic value in local and international market. Most of them inhabits coral reef, sometime on muddy substrat, sandy bottom, or sandy and muddy along shallow waters. Indonesia oceans located in a tropical territory made the diversity and organism variability is high. Lobster is nocturnal which have more activity in night than day and prefer be hidden at substrat layer[3]

Methods

Results

Conclusion