Biometry and size distribution of Crambionella annandalei and Chrysaora spp. along the coast of Andhra Pradesh, India

Behera, Pralaya Ranjan and Jishnudev, M A and Ghosh, Shubhadeep and Saravanan, Raju (2022) Biometry and size distribution of Crambionella annandalei and Chrysaora spp. along the coast of Andhra Pradesh, India. Aquatic Ecology. pp. 1-12.

Text Aquatic Ecology_2021_Behera.pdf Download (1MB)

Abstract

The biometry and seasonal size distribution of the medusae, Crambionella annandalei and Chrysaora spp. were investigated from fortnightly gillnet landings between January 2017 and December 2018 along the West coast of the Bay of Bengal. Although both taxa exhibited strong patterns of seasonality in abundance and growth, being commonest and smallest in summer, C. annandalei were largely absent in the monsoon and post-monsoon seasons, while Chrysaora spp. could be recorded throughout the year in a variety of size groups. There was a strong cohesion in pattern between years, suggesting that the monsoon impacts populations of both species, albeit in slightly different ways. We provide rare, field-based measurements of growth for both species that are in broad agreement with the data published for similar taxa elsewhere: our length– weight data provide useful contributions to baseline information.

Item Type:	Article
Uncontrolled Keywords:	Bay of Bengal; Bell diameter; Growth; Scyphozoa; von Bertalanffy growth curve
Subjects:	Invertebrates > Hydrozoa Invertebrates Oceanography > Seawater study Marine Fisheries > Population Dynamics
Divisions:	CMFRI-Kochi > Marine Biodiversity Division Subject Area > CMFRI > CMFRI-Kochi > Marine Biodiversity Division CMFRI-Kochi > Marine Biodiversity Division Subject Area > CMFRI-Kochi > Marine Biodiversity Division
Depositing User:	Arun Surendran
Date Deposited:	16 Oct 2021 10:13
Last Modified:	26 Dec 2023 11:50
URI:	http://eprints.cmfri.org.in/id/eprint/15418

Actions (login required)

View Item