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Juvenile abundance and post-larval incursion of mud crabs (Scylla spp.) in Chilika lagoon

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Title Juvenile abundance and post-larval incursion of mud crabs (Scylla spp.) in Chilika lagoon
Not Available
 
Creator Mohapatra, A., Mohanty, S.K. and Mohanty, R.K.
 
Subject Chilika lagoon, Scylla spp., megalopa incursion, juvenile abundance
 
Description Not Available
Study was carried out on the juvenile abundance and post-larval incursion of two species of Scylla into the lagoon for
period of two years from August, 2005-July, 2007. Occurrence of juvenile, S. serrata were throughout the year, while in
S. tranquebarica, juveniles were not encountered during December-February. December-May register higher median CPUE
values with peak in March for S. serrata. In S. tranquebarica, the peak juvenile abundance period was restricted to JuneSeptember with peak in July. The CPUE values for juveniles indicted that the recruitment was intense for S. serrata during
post-winter (January-April) and for S. tranquebarica during monsoon (June-September). The crab seeds were available
throughout the year which gave a clear evidence for the year round recruitment with the peak during the months of
November-March for Scylla species from the Bay of Bengal to the Chilika lagoon. During the study period, the megalopa
and first crab instar recruitment per net-hour collection was significantly higher during spring tides than neap tide phase
(p< 0.05) and also higher incursion was observed in the night hours than day hours (p< 0.05). Significantly higher night
collections of mud crab juveniles (mixed population of both species) from net box traps (khandas) were obtained during new
moon phases (t=3.88; d.f.=11; P< 0.01)
Not Available
 
Date 2019-02-05T06:21:12Z
2019-02-05T06:21:12Z
2011-02-28
 
Type Research Paper
 
Identifier Mohapatra, A., Mohanty, S.K. and Mohanty, R.K. 2011. Juvenile abundance and post-larval incursion of mud crabs (Scylla spp.) in Chilika lagoon. Indian Journal of Geo-Marine Sciences 40(6):834-840.
0975-1033 (Online); 0379-5136 (Print)
http://krishi.icar.gov.in/jspui/handle/123456789/16880
 
Language English
 
Relation Not Available;
 
Publisher NISCAIR-CSIR, India