Trawl codend selectivity in respect of silver pomfret pampus argenteus (Euphrasen, 1788)
Trawl codend selectivity in respect of silver pomfret pampus argenteus (Euphrasen, 1788)
Date
2012
Authors
Boopendranath, M.R.
Pravin, P.
Remesan, M.P.
Thomas, S.N.
Edwin, L.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India), Cochin
Abstract
The silver pomfret Pampus argenteus (Euphrasen,
1788) belonging to the family Stromateidae is an
important resource exploited by trawlers in India
and is one of the most sought after marine food fish
worldwide. Information on trawl selectivity is
required in biological investigations, fish stock
assessment, fisheries management and fishing gear
design and development. The size selectivity for this
species in 100 mm diamond mesh codend was
estimated using covered codend method and the
selectivity parameters were estimated using the
software CC 2000 (ConStat, Denmark). The L50,
selection range and selection factor were determined
as 144.8 mm, 27.3 mm and 1.45 respectively.
The optimum mesh size estimated based on the
highest reported value of length at first maturity for
silver pomfret in Indian waters and the selection
factor determined through trawl selectivity experiments
was 150 mm, for conventional diamond mesh
codends.
Description
Keywords
Trawl codend selectivity, diamond mesh, pampus argenteus, India
Citation
fishery technology 2012: 49(1), 14-17