FISHERY OF JUVENILES OF PENAEUS SEMISULCATUS ALONG THE TINNEVELLY COAST, TAMIL NADU

Abstract

Penaeus semisulcatus de Haan contributes to a considerable fishery on the
southeast coast of India, particularly in the Gulf of Mannar. Juveniles occur in
large concentrations in the shallow inshore sea, between Pattanamarudur and Tuticorin,
covering a coastline of about 20 km. They are fished throughout the year
by an indigenous gear known as 'Ola Valai' operated in the waters within 2 m
depth; landing about 57 tonnes in 1978-79. The peak abundance was in November-
January and June-July. The size ranged from 40 mm to 150 mm total length,
majority measuring less than 100 mm, indicating that this area is a nursery ground
of the species.