Species Composition, Density and Distribution of Fish Larvae in the Cambodian Water

The species composition of fish larvae in different habitats are very important for fisheries management. In total of 2,606 individual representing 47 families were collected between 10 – 21 November from 22 stations in Cambodian water. Sample was collected using a oring net from the surface layer and an oblique haul each station. Time for haul depended on water depth. The mean density of ichthyoplankton at this area was 658 ind./1000 m3 .The catches consisted primarily of fish larvae, indicating that the Cambodian water was important as nursery ground for fish. The top major families were Gobiidae (42.55% contribution), Engraulidae (9.98% contribution), Bothidae (9.22% contribution), Bregmacerotidae (42.55% contribution) and Caragidae (9.98% contribution) were dominant in the catch. Station 16 had highest density amongst the stations. The average diversity index was 1.72. The average evenness index was 0.88. The average family richness was 11 families. Amongst 47 families, 10 appeared to be commercially important and they are inhabit inshore as adults fish

Density and Distribution of Marine Benthos in the Cambodian Water

The density and distribution of marine benthos were examined between 7-18 November 2016 from 24 Stations with the aimed of studying the benthos community in terms of abundance and species diversity. There are 18,953 individual samples collected by Smith Mc-Intyre grab with dimension of 0.1089 m2 A. total of 5 groups were identified. Total marine benthos abundance was recorded 3,783 ind./m2, 3,673 ind./m2 and 2,094 ind./m2 respectively in station 8, station 24 and station 15. The Crustacea (10,395 ind./m2) was dominant all the study station (except in station 4, 12 and 23) in the Cambodian Water. The overall composition of marine benthos are Crustacea (54.7 %), Polychate (33.3 %), Mollusca (4.3 %), Echinidermata (2.0%) and Other groups. The present study reveals that the marine benthos and their abundance are variable among the Cambodia Water. The obtained information can be use for the further study of seasonal change of marine benthos and conserve biodiversity of the Cambodia Water