Open AccessSpecies composition and density of fish eggs and larvae in the coastal waters of the South-Central Vietnam
Author(s) -
Quoc Huy Pham,
Van Long Nguyen
Publication year - 2022
Publication title -
vietnam journal of marine science and technology/vietnam journal of marine science and technology (vietnam academy of science and technology)
Language(s) - English
Resource type - Journals
ISSN - 1859-3097
DOI - 10.15625/1859-3097/15575
Subject(s) - larva , fishery , biology , abundance (ecology) , fish <actinopterygii> , composition (language) , ichthyoplankton , fish larvae , ecology , linguistics , philosophy
Based on species composition and density data of fish egg and larvae in South Central coastal sea areas of Vietnam Sea waters were collected at Cù Lao Cham - Thu Bon river, Ly Son - Tra Bong river - Sa Ky river and Nha Trang - Nha Phu lagoon. Thirty-one fish eggs and larvae families were identified (about 18% of total fish eggs and 100% of wholte larvae). Cu Lao Cham - Thu Bon river has the richest species composition as 18 families, following to that is Ly Son - Tra Bong - Sa Ky and lower is Nha Trang - Nha Phu identified 15 and 10 families, respectively. The highest frequency was found in families such as Mullidae, Engraulidae and Synodontidae with 2 to 3 species (groups). The above families account for about 60% of the total number of fish eggs and larvae collected. The average fish eggs and larvae abundance about 3,630 eggs/1,000 m3 of water and 122 larvae/1,000 m3 of water. The highest eggs density is Nha Trang - Nha Phu, and the highest larvae density is Cu Lao Cham - Thu Bon river. Ly Son - Tra Bong - Sa Ky areas have eggs density lower than other areas, especially for larvae density with 22 larvae/1,000 m3 of water.