Record Details

Population Characteristics of the Tuna Baitfish spratelloides delicatulus (Clupeidae) from Lakshadweep, India

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Relation http://eprints.cmfri.org.in/4533/
 
Title Population Characteristics of the Tuna Baitfish spratelloides delicatulus (Clupeidae) from Lakshadweep, India
 
Creator Nasser, A K V
 
Subject Tuna fisheries
 
Description The blue sprat, Spratelloides delicatulus is the dominant species of bait used in the pole-and-line tuna fishery of
Lakshadweep. Length-frequency data were collected on a monthly basis during 1988-89 and 1989-90 fishing seasons
from Minicoy and Agatti. Analyses were performed using the compleat ELEFAN suite of programmes. The results
indicate that L, is between 65 and 66 mm and K values range from 4.9 to 5.0 per year. Total mortality estimates with L,
as 66 and K = 5 varied widely in the three methods employed and between sites. Natural mortality at the sites was similar
while fishing mortality and exploitation rate was maximum at Bangaram. Recruitment patterns showed high percentage
during August and December at Bangaram while at Perumal Par it showed a delayed pulsing with maximum mode in
January. The exploitation rate (E) values obtained for the bait fishery suggests fishing to be near optimum with marginal
increase especially at Bangaram. Therefore, the bait fishery at Agatti require close monitoring and further expansion in
effort must be viewed with extreme caution.
 
Date 2000
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/4533/2/3.pdf
Nasser, A K V (2000) Population Characteristics of the Tuna Baitfish spratelloides delicatulus (Clupeidae) from Lakshadweep, India. In: The Fifth Indian Fisheries Forum Proceedings, 17-20 January, 2000, Bhubaneswar, Orissa.