TY JOUR TI Reaction of Gammaridae to oxygen contained in low water level in the North Caspian KW oxygen concentration KW hypoxia KW Gammaridae KW the North Caspian KW abundance KW biomass KW limits of tolerance JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Degtyareva, L.. AU Kostrykina, T.. AU Kashin, D.. PY 2020 IS PB Astrakhan State Technical University