The fishes of the Chaunskaya Bay and its Basin have been little studied. Part coast this vast Arctic estuary (about 9 thousand km2) is included in state nature reserve “Chaunskaya Guba”; at entrance to bay there seaport Pevek, a transit hub Northern Sea Route. area has identified as one priorities for protection biodiversity seas Russian Arctic. Solving problem biota conservation begins with an...

In the context of global change, aim this study was to investigate effects temperature on survival rate and various variables (development time, morphometric measures, energy values) for both embryos post-hatch stages until first food intake northern pike ( Esox lucius ). We applied five constant temperatures (8, 10, 12, 14 16 °C) their were analyzed during entire endogenous feeding period at t...

Predator-prey interactions can modify population dynamics and influence ecosystem functioning. An interesting, but less understood, aspect of such species is predator-prey role reversal where a mesopredator reduce the recruitment success, ultimately abundance, their own predator. Such ongoing in Baltic Sea increasing abundances mesopredatory sticklebacks ( Gasterosteus aculeatus ) have resulted...