Biology feature of anchovy kilka (<i>Clupeonella engrauliformis</i>) in changed condition of the Caspian Sea
Long-time biology feature information of anchovy kilka (<i>Clupeonella engrauliformis</i>) in the Caspian Sea is given. In article strong changes in anchovy kilka population structure are showed. Long-term data about anchovy kilka food level, indexes of stomach filling, dynamics of fatness, age and size characteristics are also shown. After (<i>Mnemiopsis leidyi</i>) appeared in the Caspian Sea anchovy kilka haul have drastically decreased for last decade. It is necessary to start scientific researches dedicated to census, stocks, migration and the optimal habitats of all kilka species in Meddle and Northern parts of the Caspian Sea. Recommendations for lower of anchovy kilka haul, to develop selective ways for haul both kilka species (<i>Clupeonella grimmi</i>) and (<i>Clupeonella delicates</i>) and to declare moratorium on haul of anchovy kilka across all the Caspian Sea for 3-4 years are given.