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Age and growth of spiny lobster Panulirus polyphagus (Herbst) of Bombay waters

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Relation http://eprints.cmfri.org.in/364/
 
Title Age and growth of spiny lobster Panulirus
polyphagus (Herbst) of Bombay waters
 
Creator Kagwade, P V
 
Subject Lobsters
 
Description Age and growth of spiny lobster Panulirus polyphagus (Herbst) has been
determined based on length-frequency method. Growth during the first 3 years is
identical in both sexes; 85 mm in the I year, 145 mm in II year and 205 mm in
III year. Thereafter the males grow faster than females; measuring 265 mm by
the end of IV year, 315 mm by the end of V year and 355 mm by the end of
VI yisar. Females measure 255 mm, 290 mm, 320 mm, 345 mm and 365 mm
respectively by the end of successive years IV to VIII. The frequency of moulting
is more and the intermoult period shorter in juveniles; with advance in age,
the intermoult period lengthens and the number of moulting reduces. The length
incrwnent per moult is nearly constant over the juvenile and adult phases. Six
to seven broods appear to be recruited annually to the fishery. The peak period
of recruitment, of very small-sized juveniles, is November-December. The growth
does not conform with the general growth pattern of fishes, but follows the pattern
common to crustaceans. Values of growth parameters by von Bertalanffy's
growth equation are:
L„ == 537 mm, K = 0.2000 and t,, = 0.6037 for males and
L„ == 443 mm, K = 0.2231 and t„ - 0.1985 for females.
 
Publisher CMFRI/ICAR
 
Date 1987
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/364/1/Article_06.pdf
Kagwade, P V (1987) Age and growth of spiny lobster Panulirus polyphagus (Herbst) of Bombay waters. Indian Journal of Fisheries, 34 (4). pp. 389-398.