Maturation and growth of jack mackerel, Trachurus symmetricus
1975
Wine, Vickie L. | Knaggs, Eric H.
Biological knowledge of jack mackerel is not extensive,and as yet no information on maturity or growth ratehas been documented. Analysis of fish caught in theSouthern California Bight indicates a spawning seasonfrom March through October. By the end of their firstyear, most females (70%) are capable of spawning, andthe percentage increases with age.Weight-length curves were calculated for a 2 monthperiod (July and August), and for the entire year. Avon Bertalanffy growth curve was determined fromJuly-August data to represent size of each age groupnear the designated August 1 birthdate. (328pp.)
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