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Age, Growth, and Sexual Maturity of the Shorthorn Sculpin, Myoxocephalus scorpius , in Newfoundland Waters

1970; Canadian Science Publishing; Volume: 27; Issue: 12 Linguagem: Inglês

10.1139/f70-244

0015-296X

G. P. Ennis,

Fish Biology and Ecology Studies

In Newfoundland waters, shorthorn sculpins, Myoxocephalus scorpius (L.), live to age 15 and attain a maximum size of just over 50 cm. The growth rates of males and females are little different below age 4, but above age 4 the females grow faster than the males, and the difference between average length-at-age for males and females gets progressively larger with age. Males mature at a younger age and at a smaller size than females. In any age-group where there are mature and immature individuals the mature ones are larger.