Effect of Lunar Cycle and Monsoon on Abundance of Pelagic Sharks around Andaman and Nicobar Islands
Effect of Lunar Cycle and Monsoon on Abundance of Pelagic Sharks around Andaman and Nicobar Islands
Date
2014
Authors
Sajeevan, M. K.
. Sanadi, Rajashree B
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
High demand and lucrative value of shark products
like shark fin has resulted in an increase in the
number of sharks caught worldwide. Pelagic sharks
form a major bycatch of tuna longline fishery. The
present study attempts to understand the abundance
of pelagic sharks in time and space scale
around the Andaman and Nicobar Islands. The
exploratory tuna longline survey data are fitted
using the generalised linear model. The results
indicate a significant effect of lunar cycle as well
as monsoon on the catch rate of pelagic sharks. The
highest catch rates were recorded during new
moon period.
Description
Keywords
Lunar cycle, monsoon, pelagic sharks, Andaman & Nicobar islands
Citation
Fishery Tech 51(1):19-24