Abstract
Ornate spiny lobster (Panulirus ornatus) in Sebatik Island is a commercial fisheries commodity that has the highest price if we compare it with another lobster caught by the fisherman in Sebatik Island Waters. That causes the effort to catch this lobster to increase continuously. The availability of biological aspects data of ornate spiny lobster is needed as a basis for sustainable lobster resource management in Sebatik Island. This research aims to analyze the biological performance of ornate spiny lobster in Sebatik Waters, coverage from study carapace length-frequency distribution and carapace length-weight correlation of ornate spiny lobster. This research is expected to provide benefits as basic information in lobster management. Information related to the biological condition of lobsters can be used as a consideration in strategies for the utilization and management of lobster resources. Measurement of carapace length, weight, and sex of ornate spiny lobster was carried out from April to August 2016 at lobster landing base in Sebatik Island, North Borneo, Indonesia. The results showed that the sex ratio shows an unstable ratio. The distribution catch size of ornate spiny lobsters ranged from 64.5–114.5 mmCL. The growth pattern of female and male ornate spiny lobsters was negative allometric with r and R2values of both female and male >0.95. Carapace length at first ornate spiny lobster catch was 71.28 mmCL.
Highlights
Indonesia has a high level of endemicity and diversity of lobster species with 19 species of lobster known genus of Panulirus which have high commercial value among other crustacean or fisheries commodities[1,2,3,4,5,6]
Various lobster commodities that catch in Sebatik Island waters are mud spiny lobster (Panulirus polyphagus) known by local people as lobster pakistan, painted green/bamboo lobster (Panulirus versicolor) known as lobster bambu, scalloped spiny lobster (Panulirus homarus) known as lobster pasir, pronghor lobster (Panulirus penicillatus) known as lobster batu, and white-whiskered coral crayfish (Panulirus longipes femoristriga) known as lobster batik merah, and ornate spiny lobster (Panulirus ornatus) known as lobster mutiara
The class mode of carapace length is found at the class median of 74.5 mm
Summary
Indonesia has a high level of endemicity and diversity of lobster species with 19 species of lobster known genus of Panulirus which have high commercial value among other crustacean or fisheries commodities[1,2,3,4,5,6]. Lobster (Panulirus spp) is known by local communities in Sebatik Island as udang karang or udang barong, because there find and catch this commodity in coral areas. The importance of ornate spiny lobster resource is not followed by data availability on biological aspects such as sex ratio, carapace length-frequency distribution, and carapace length-weight correlation of ornate spiny lobster. It is all needed as a basis for sustainable lobster resource management on Sebatik Island waters. Analysis of study carapace length-frequency distribution and carapace length-weight correlations of ornate spiny lobster in Sebatik Island waters, Indonesia. Information related to the biological condition of lobsters can be used as a consideration in strategies for the utilization and management of lobster resources in a sustainable manner
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