TY JOUR TI TROPHIC STATUS OF THREE-SPINED STICKELBACK GASTEROSTEUS ACULEATUS L. (GASTEROSTEIDAE) IN THE VISLA BAY OF THE BALTIC SEA KW stickleback KW feeding range KW diet changes KW index of stomach fullness KW feeding relations KW trophic status KW invasions JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Strelnikova, A.. PY 2013 IS 2013 PB Astrakhan State Technical University