Validation and Application of an Ageing Technique for Short-finned Squid (Illex illecebrosus)
E. G. Dawe, R. K. O'Dor, P. H. Odense and G. V. Hurley
Fisheries Research Branch, Department of Fisheries and Oceans
Northwest Atlantic Fisheries Centre, P. O. Box 5667
St. John's, Newfoundland, Canada AIC 5X1
Source - Journal of Northwest Atlantic Fishery Science, Volume 6(2): 107-116
ISSN-0250-6408
A technique has been developed which simplifies the ageing of short-finned squid (Illex illecebrosus) through microstructural examination of the statoliths. The spatial pattern of growth increments was studied with the use of light and scanning electron microscopy. Daily growth increments in statoliths were validated by employing chemical "time" markers (strontium and tetracycline) and laboratory-reared animals of known age. Increment formation continued through periods of food deprivation and minimal temperature fluctuations.
Language - English
Publisher - Northwest Atlantic Fisheries Organization (NAFO), Dartmouth, N.S., Canada
Publication Date - December 1985
Publication Type - Journal Article
Descriptors - age, growth, squid