Coupling Demographic and Genetic Variability from Archived Collections of European Anchovy (Engraulis encrasicolus)

摘要: It is well known that temporal fluctuations in small populations deeply influence evolutionary potential. Less whether can the potentials of species with large census sizes. Here, we estimated genetic population parameters from as survey polymorphic microsatellite DNA loci archived otoliths Adriatic European anchovy (Engraulis encrasicolus), a fish sizes supports numerous local fisheries. Stocks have fluctuated greatly over past few decades, and fishery collapsed 1987. Our results show significant reduction mean consequence collapse. In addition, estimates effective size (Ne) are much smaller than those expected fishes (Nc). Estimates Ne indicate low sizes, even before The ratio Ne/Ne ranged between 10-6 10-8, indicating discrepancy gene pool size. Therefore, may be more vulnerable to effort environmental change previously thought.