کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4544335 1626856 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Temporal changes and effective population size of an Italian isolated and supportive-breeding managed northern pike (Esox lucius) population
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Temporal changes and effective population size of an Italian isolated and supportive-breeding managed northern pike (Esox lucius) population
چکیده انگلیسی

Genetic analyses allowed management and conservative programmes specifically designed for biodiversity conservation purposes. To date, no information is available for the Ne definition of any Italian northern pike population, because of their wide, highly fragmented, distribution. Low gene flow levels may have caused some of the health population problems emerging from professional fisheries data, underlining a marked reduction of these populations. This paper reports the first estimate of genetic Ne of the Lake Trasimeno's northern pike, by means of microsatellites data, over the last four decades compared with five other significant Italian populations. Ne values were evaluated through specific software and θ estimator. The Ne results confirm that, despite a marked reduction between 1966 and 1997 and a less than optimal status, the Trasimeno population shows a positive trend in its health status, presumably due to proper management programmes. Considerations on the biological conservation and management of this pike population are also reported.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fisheries Research - Volume 96, Issues 2–3, March 2009, Pages 139–147
نویسندگان
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