Record Details

Results of ichthyoplankton surveys along the southwest coast of India with special reference to pelagic fish resources

CMFRI Repository

View Archive Info
 
 
Field Value
 
Relation http://eprints.cmfri.org.in/1060/
 
Title Results of ichthyoplankton surveys along the southwest coast of India with special reference to pelagic fish resources
 
Creator George, K C
 
Subject Pelagic Fisheries
Phytoplanktons
 
Description A well planned and systematic Ichthyoplankton survey programme was carried out by the UNDP/
FAO Pelagic Fishery Project, Cochin (1971-79) along the southwest coast of India. These surveys
were part of the Project's programmes for assessment of the Pelagic fish resources of the Project
area extending from Ratnagiri to Tuticorin. Major part of the field work was conducted from
1971 to 1975 over the shelf and adjacent waters.
The survey results indicated that all the dominant pelagic species spawned over the shelf in the
entire range of their distribution in most months of the year. The peak of spawning in almost all
cases was aligned to the Southwest Monsoon period with a secondary peak in the Northeast Monsoon
in some species ; including the mackerel. The larval distribution showed a southward drift and
concentration in areas south of 12° N, spreading over oceanic waters in this sector.
No consistent and positive relationship between the abundance of larvae of a particular species
with the magnitude of its fishery in the area was evident. However in cases like the whitebaits the
larval abundance gave corroborative evidence supporting the findings of simultaneous acoustic surveys
on the very high potential of these fishes. On the other hand the predominance of the larvae of frigate
mackerels, compared to those of Indian mackerel is not supported by commensurate fishery for the
former species or potential in the surveyed area.
The paper critically reviews the findings of the surveys on the spawning, distribution and
abundance of the larvae of the major pelagic fishes and their resources along the southwest coast
of India.
 
Publisher MBAI
 
Date 1989
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/1060/1/George_172-189.pdf
George, K C (1989) Results of ichthyoplankton surveys along the southwest coast of India with special reference to pelagic fish resources. Journal of the Marine Biological Association of India, 31 (1&2). pp. 172-189.