Journal of the Marine Biological Association of India

Fish assemblages associated with natural and artificial habitats in Palk Bay, southeast coast of India: Comparison using Baited Remote Underwater video

Volume 61 Issue 1

V. Balaji, V. Sekar and M. Masilamani Selvam

10.6024/jmbai.2019.61.1.2082-08

Abstract

In the present study, demersal fishes associated with natural habitats (seagrass and algal beds) and artificial habitat (artificial reef) were assessed between October 2012 and September 2013 using Baited Remote Underwater Video (BRUV) in Palk Bay, south-east India. This study is the first of its kind in India. High definition video recording was done for 1.5 hours with baits (crushed shrimp and fishes) placed in the study area every month. A total of 1,038 individuals from 24 fish species belonging to 21 families and 23 genera were recorded.The results reveal that the diversity and abundance of fish assemblages were significantly higher in artificial reefs than in natural seagrass and algal beds. Results indicate that artificial reefs provide better sheltering ground for fishes along the northern Palk Bay. Further, we suggest that BRUV is advantageous in assessing and monitoring demersal fishes owing to its non-destructive and cost effective nature. 

Keywords

Underwater, fish, Palk Bay, artificial reef, seagrass

Date : 30-06-2019