Abstract

The objective of this research was to estimate the potency of demersal fish resource spread over three sub-districts i.e. Sangkulirang, Sandaran and Kaliorang in Kutai district, East Kalimantan province. The result showed that the highest total biomass was produced by aquatic zone of Sandaran sub-district with 1,763,713.6 ton/zone and the density stock was 13,566.5 kg/km2. It was followed by Sangkulirang sub-district with 264,653.3 ton/zone and 6,640.4 kg/km2, respectively and then by Kaliorang sub-district with 58.086,5 ton/zone and 2,768.0 kg/km2, respectively. In term of species particularly from crustaseaae family, the most economic aquatic zone was found in Sangkulirang sub-district. The export product species Penaeus sp was obtained from Penaeus monodon, Metapenaeus monoceros, Metapenaeus sp, Parapenaeopsis sculptilis, Penaeus sp, and lobster which was accounted by 3,381.6 tons/zone, 83,199 tons/zone, 14,492.7 tons/zone, 24,691.3 tons/zone, 41,331.1 tons/zone, and 1,073.5 tons/zone, respectively. It was followed by Sandaran sub-district with export product species was Penaeus merguensis 33,495.7 tons/zone and non-export products were Parapenaeopsis sculptilis 63,641.7 tons/zone, Penaeus sp 16,747.8 tons/zone, Metapenaeus sp 1.674,8 tons/zone, Caridina sp 1.562.572,2 tons/zone, and Scylla serrata 3,349.6 tons/zone. Next was Kaliorang sub-district which accounted by Penaeus merguensis 62.2 tons/zone and Metapenaeus monoceros 49.7 tons/zone. In situ measurement on seven physical-chemical quality parameters of water which compared to the standardized of sea water showed that water quality found in coastal zone of Kaliorang, Sangkulirang and Sandaran sub-district, East Kutai province was suitable and feasible for the aquatic and living of marine habitats Normal 0 false false false IN X-NONE X-NONE

Highlights

  • Coastal zone has abundant potency of fishery resource, but somehow hasn’t reached the optimum exploration (Charles, 2001)

  • The highest total biomass of demersal fish resource was found at Sandaran sub-district aquatic zone by 1,763,713.6 ton/zone and density stock by 13,566.5 kg/km[2], followed by Sangkulirang aquatic zone by 264,653.3 ton/zone and 6,640.4 kg/km[2], respectively and Kaliorang aquatic zone by 58,086.5 ton/zone and 2,768.0 kg/km[2], respectively

  • According to the biomass production of crustaseaae family, the most economic aquatic zone occurred at Sangkulirang sub-district which consisted of export species (Penaeus sp) including Penaeus monodon 3,381.6 tons/zone, Metapenaeus monoceros 83,199 tons/zone, Metapenaeus sp 14,492.7 tons/zone, Parapenaeopsis sculptilis 24.691,3 tons/zone, Penaeus sp 41.331,1 tons/zone, and Homarus sp 1,073.5 ton/zone

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Summary

Introduction

Coastal zone has abundant potency of fishery resource, but somehow hasn’t reached the optimum exploration (Charles, 2001). Coastal zone is the transition or interface between land and ocean ecosystem (Blankenship and Leber, 1995). This zone is very productive and potential for Demersal fish catchment (Blanchard, 2001). Fishing can be carried out in coastal zone and off-shore zone. Fishing catchment in coastal zone is carried out by small fishermen using simple technology. They catch different kinds of skinny fish, mollusk and plant protein such as mangrove vegetation, algae, sea weed and so on (Sorensen et al, 1984). While fishing catchment in off shore zone, besides of small fishers, capital-intensive fishers play the most significant role (Soede, 2000)

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