abundance and composition of finfish and shellfish seeds inmangroves of
Gangolli estuary, off south-west coast of India
*K. M. Rajesh,
Sujitha Thomas, A. P. Dineshbabu, PrathibhaRohit, B. Sridhara and G. D.
Research Centre of Central Marine Fisheries Research Institute, Mangalore-575
Author?s E-mail : email@example.com
15 February 2014
15 February 2015
20 March 2015
composition and seasonal abundance of the fin and shellfish seeds in mangrove
areas of Gangoli estuary were studied for one year from January to December,
2013. Monthly day time sampling was conducted with a rectangular dragnet of
75 m2 length having 5 mm mesh size. The mean monthly density was highest in
January (Avg. of 12,996/haul) and lowest during May (Avg. of 859/haul).
Thirty species of fish, four species of shrimps and two species of crabs
belonging to 26 families were recorded during the study.? Ambasis sp.,
Feneropenaeus indicus, Etroplus suratensis,Leognathus sp., Liza sp.,
Stolephorus vaganensis, Hemiramphus sp., Terapon sp. and Gerres sp.
were the most abundant species/taxa.? A total of 10 commercially important
species comprising F. indicus, Etroplus suratensis, Liza
sp., Gerres sp.,Siganus sp., Lutjanus russeli, Macrobrachium rosenbergii,
Lutjanus argentimaculatus, Sillago sp. and Penaeus monodon
constituted 8.5 %? (April, 2013) to 93.7% (October, 2013) with an average of
37.2% of the total fish and shellfish seeds. Higher Species diversity (H')
and Species richness (D) was recorded during January.The result of the
present investigation gives an insight of the abundance and seasonality of
commercially important fish and shellfish seeds, which may facilitate the
brackishwater fish farmers to exploit the seeds more pragmatically for their
culture practice. ??????
Fish and shellfish seed, Mangrove, Seasonal abundance
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