L. Taylor and G. Stefánsson
Marine Research Institute, P. O. Box 1390, Skúlagata 4
Source - Journal of Northwest Atlantic Fishery Science, Volume 25: 101-114
Growth and maturation of haddock (Melanogrammus aeglefinus), in Icelandic waters have shown considerable spatial and temporal variation in the past several decades. After 1988 haddock have matured much earlier than in earlier decades and haddock in some areas appear to mature young and also show stunted growth. The paper compares possible reasons for this phenomenon and evaluates different models of the growth-maturation process through the use of otolith radii and length-at-age as well as biological samples from groundfish surveys and commercial catches. It is found that there is considerable spatial and temporal variation in growth and maturity. Some of the variability may be due to some form of competition among year-classes whereas there are also indications of a link between growth and maturation in certain areas.
Language - English
Publisher - Northwest Atlantic Fisheries Organization (NAFO), Dartmouth, N.S., Canada
Publication Date - October 1999
Publication Type - Journal Article