TY JOUR TI DOWNSTREAM MIGRATION OF YOUNG BLACK-BACKED HERRING (ALOSA KESSLERI KESSLERI (GRIMM, 1887)) IN THE VOLGA RIVER IN 2014 KW black-backed herring KW hydrological regime KW spawning migration KW slope KW downstream migration KW prolarvae KW early larvae KW concentration KW vertical distribution KW daily dynamics KW replenishment of population JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Pyatikopova, O.. PY 2015 IS 2015 PB Astrakhan State Technical University