Year: 2011
Type: article
Abstract: Growth parameters are used to estimate catch-at-age data which is required as an input to \nmany stock assessment models. In the case of Mediterranean albacore stock no assessment has \never done (ICCAT, 2009). This study presents growth information based on spine section \ninterpretation of annual time marks. A preliminary age-length key is presented for males, \nfemales and two sexes combined, based on 249 albacore (Thunnus alalunga, Bonn.1788) spine \nsamples caught around the Balearic Islands and Western Mediterranean sea between June and \nNovember from 2004 thru 2006. The albacore length ranged from 52 cm to 94 cm for females \nand from 53 cm to 96 cm for males. Available length-weight data for 138 males and 162 \nfemales was analysed separately. New estimates presented in this study were compared with \nassumed biological length-weight relationship for Mediterranean albacore stock. As well, mean \nlength by age estimates derived from the age-length-key obtained by reading fin ray section \nwere compared with other studies that used hard parts to age Mediterranean albacore.
Language: English
Subfield: Aquatic Science
Domain: Life Sciences
SDG: Life below water
Open Access status: green
OpenAlex ID: W1256703380