Size and structure of a new lake minnow, Eupallasella percnurus (Pall.), population established through translocations

Justyna Sikorska, Jacek Wolnicki, Rafał Kamiński
2011 Archives of Polish Fisheries  
In July and August 2010, the Lincoln-Petersen capture-recapture method was used to assess the size and basic structure of a newly established population of the endangered in Poland cyprinid fish lake minnow, Eupallasella percnurus (Pall). The population that inhabits a small (0.08 ha) peat excavation site in the village of Kowalicha near Radzymin (Mazowieckie Voivodeship, Poland) was initiated in 2004-2006 using the translocations of a total of 1530 cultivated individuals, mostly juveniles aged
more » ... stly juveniles aged 0+. The total size of the E. percnurus population was estimated to be 600 individuals excluding aged 0+. The population size is not considered to be large in comparison with other populations inhabiting water bodies of similar surface areas. Males proved to be predominated by femalesphenomenon typical of populations of this species -but at relatively high ratio of approximately 1:4. Most of females were aged 2+, whereas most of males were older (3+). These data indicate that the population remains in the early stages of development. The Lincoln-Petersen method proved useful in the studies of the size and structure of E. percnurus populations.
doi:10.2478/v10086-011-0024-5 fatcat:fasrucsccbhmvh2f4xcjyl4ava