کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4543916 1626852 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Use of different geometric morphometrics tools for the discrimination of phenotypic stocks of the striped clam Ameghinomya antiqua (Veneridae) in north Patagonia, Argentina
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Use of different geometric morphometrics tools for the discrimination of phenotypic stocks of the striped clam Ameghinomya antiqua (Veneridae) in north Patagonia, Argentina
چکیده انگلیسی

The striped clam (Ameghinomya antiqua (King, 1832)) metapopulation of the San José Gulf is a good model for phenotypic stocks studies based on the shell shape variation in different fishing grounds. These sites show differences in circulation, tidal currents, coastal topography, and bathymetry. Furthermore, it is known that the diverse environments produce differences in the growth rate of this species. In the current work, we study the shell shape changes in the striped clam from different fishing grounds of the San José Gulf through geometric morphometrics methods. Outlines and landmarks analyses were successful to determinate the provenance of the individuals, with almost the 90% of correct assignations for the most of the fishing grounds. The different methodologies showed variations in diverse morphological traits, and as a result different patterns of the shell shape among localities were evidenced. Moreover, each site presented a typical shell shape. Our results showed that the geometric morphometrics methods are powerful tools to identify and separate intra-specific groups. This approach is applicable to other exploited species with subtle shape variations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fisheries Research - Volume 101, Issues 1–2, 5 January 2010, Pages 127–131
نویسندگان
, , , ,