Đặc điểm nguồn giống cá trong các thảm cỏ biển Phú Quốc, Kiên Giang, Việt Nam [Fish egg and larvae in seagrass beds of the Phu Quoc island, Kien Giang, Viet Nam]

Abstract

Fish egg, larval density and composition in l0 locations of seagrass bed of the eastern Phu Quoc Island, Vietnam were investigated in July 2013. Mean egg density 436.97 egg per 100m3 and 50.36 larval individuals per 100m3. Egg and larval abundance are not varied significantly in 10 locations of seagrass bed (p>0.05). The larvae in the sea grass station is quite diverse with 24 taxa belonging to 21 families, they belong to the group of small pelagic and bottom fish living in inshore. Top five abundant families were Gobiidae, Pomacentridae, Atherinidae, Blennidae and Callionymidae and they occurred consistently in all locations. Larvae belonging to some commercial families, such as Clupeidae, Engrauliade and Carangidae, Teraponidae, Sillagidae,Mugilidae, Scombridae, Serranidae were less abundant in the study areas. Seagrass beds in Phu Quoc area with 3,650 hectares, concentrated in the east of the island, that has a role in the fisheries of the region as spawning and nursing ground for renewable resources in the region.