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Free Content Age and growth of the blacktail comber, Serranus atricauda (Serranidae), off the Canary Islands (central-eastern Atlantic)

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Abstract:

This study provides information about the age and growth of the blacktail comber Serranus atricauda Günther, 1874 from the Canary Islands, eastern-central Atlantic. The length-weight relationship was described by the following parameters: a = 0.0056 and b = 3.25, being positively allometric. Age was determined from annuli in whole otoliths (sagittae) stained with ninhydrin, which highlighted the alternating opaque and translucent zones of each annulus. The high percentage of otoliths with translucent zones during the annual cycle indicated that this species has continuous growth year-round. Age range was 2–16 yrs for fish measuring 16.2–43.2 cm TL, and weighing 55–1104 g TW. This species is slow-growing and long-lived. The growth parameters obtained were L = 49.52 cm TL, K = 0.11 yrs–1, and to = –0.76 yrs. Otolith length was the best predictor of fish length, while the otolith weight was the best predictor of age.

Document Type: Research Article

Publication date: 2004-01-01

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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