BLUEAGE, a Canadian-Spanish joint research project. "Validated age and growth analysis of Atlantic bluefin tuna (Thunnus thynnus)"
Year: 2012
Type: article
Abstract: In 2007, an agreement of scientific cooperation between Spain and Canada was signed, which \nsupports a collaborative program of marine research between Canadian and Spanish \ninstitutions. The objective of this collaboration is to advance joint research in areas of mutual \ninterest to both countries. Canada and Spain have important Atlantic bluefin tuna fisheries and \nthis resource is in an over-exploited condition. This project addresses the need to improve \nknowledge about bluefin tuna life history in order to contribute to its management and ensure \nthe sustainability of their populations. The purpose of this collaboration is to use Canadian \nradiocarbon expertise to determine if a dated mark exists on the dorsal fin spines that can be \nused for age validation purposes. Other objectives are to compare age estimates from different \ncalcified structures coming from the same specimen, to review direct ageing methodology using \ndorsal fin spines, to establish validated reference collections of hard structures and to analyze \ntemporal variability by modeling length at age from historic and current data series and \nestimate and compare new growth parameters for the east and west stocks. We present the \nresults obtained so far and the tasks that still remain to be completed.
Language: English
Subfield: Aquatic Science
Domain: Life Sciences
SDG: Life below water
Open Access status: green
OpenAlex ID: W2171986801