Swordfish growth pattern in the strait of Gibraltar; implications for mixing among Atlantic and Mediterranean stocks

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Semantic enrichment/homogenization by EKT
Swordfish growth pattern in the strait of Gibraltar; implications for mixing among Atlantic and Mediterranean stocks (EN)

IDRISSI, M.
BAKKALI, M.
ABID, N.
TSERPES, G.

A growth study of the swordfish in the Strait of Gibraltar was carried out, based on monthly size frequencies data collected from the Moroccan driftnet fishery during the period 2006-2011. The growth parameters were estimated by the modal progression analysis (MPA), using both the Bhattacharya and NORMSEP methods. The standard von Bertalanffy growth function (VBGF) for length was found to be: Lt =253.6 [1-exp (- 0.17(t + 1.30))]. The growth pattern of swordfish in the Strait of Gibraltar was found to be very similar to that obtained from past studies in various Mediterranean areas. Given the existing growth differences among Atlantic and Mediterranean swordfish, this suggests that the majority of fish caught in this area are most likely belonging to the Mediterranean stock. However, further studies are needed to identify the degree of mixing among stocks. (EN)

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Swordfish, growth, Strait of Gibraltar, stocks mixing. (EN)

Ελληνικό Κέντρο Θαλασσίων Ερευνών (ΕΛΚΕΘΕ) (EL)
Hellenic Centre for Marine Research (HCMR) (EN)

Mediterranean Marine Science

2013-12-10


Hellenic Centre for Marine Research (EN)

Strait of Gibraltar (Mediterranean sea (EN)
2004-2011 (EN)
biology of fish (EN)

1791-6763
1108-393X
Mediterranean Marine Science; Vol 15, No 1 (2014); 135-144 (EL)
Mediterranean Marine Science; Vol 15, No 1 (2014); 135-144 (EN)



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