Record Details

Shrimp fishery by mini-trawling along Alleppey coast, Kerala

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Relation http://eprints.cmfri.org.in/2057/
 
Title Shrimp fishery by mini-trawling along Alleppey coast, Kerala
 
Creator Nandakumar, G
Radhakrishnan, E V
Chellappan, K
Baby, P K
 
Subject Prawn and Prawn fisheries
 
Description Penaeid shrimps from nearshore waters in 5-12 m depth range are regularly exploited by plank built boats
locally known as murivallan which operate mini - trawl (cod end mesh size 15-20 mm) along Alleppey coast
in Kerala. Observations made for three seasons at Valanjavazhy (1994-97) and at Pallithode (2002-05)
indicated that 935 t (cpue 42 kg) and 145 t (37kg) of shrimps were landed by mini-trawl at these centres
respectively. The fishing season extended from September to MayIJune depending on the onset of monsoon.
Parapenaeopsis stylifera and Metapenarus dobsoni were the main contributors to the shrimp fishery. While
the former predominated (91%) the fishery at Valanjavazhi, both the species showed almost equal representation
at Pallithode. Species-wise details on size distribution, sex ratio, maturity and spawning season have
been indicated. In spite of discarding smaller P. stylifera (< 41 mm in total length), the commercial catch at
Valanjavazhy consisted more than 50% juveniles during many months in the observation period. I stylifera completes its nursery phase in the nearshore areas along the coast and fishing them at this stage is detrimental to the fishery of this species. The impact of mini-trawl operation on the shrimp resources off Kerala along with possible management measures is discussed.
 
Publisher MBAI
 
Date 2005
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/2057/1/Nandakumar_169-174.pdf
Nandakumar, G and Radhakrishnan, E V and Chellappan, K and Baby, P K (2005) Shrimp fishery by mini-trawling along Alleppey coast, Kerala. Journal of the Marine Biological Association of India, 47 (2). pp. 169-174.