Open AccessARTEMIA POPULATIONS IN MODERN CONDITIONS OF SALT LAKES OF SOUTH-EASTERN KAZAKHSTAN
Author(s) -
Boranbay Kenzhebekovich Kenzhebekov,
Shyrailym Betbolatkyzy Nuriyeva,
Tatjana Timofeevna Troshina,
Lyudmila Ivanovna Sharapova,
Olga Aleksandrovna Sharipova
Publication year - 2019
Publication title -
vestnik astrahanskogo gosudarstvennogo tehničeskogo universiteta. seriâ: rybnoe hozâjstvo
Language(s) - English
Resource type - Journals
eISSN - 2309-978X
pISSN - 2073-5529
DOI - 10.24143/2073-5529-2019-1-72-82
Subject(s) - crustacean , mineralization (soil science) , salinity , environmental science , ecology , fishery , oceanography , biology , geology , soil water
Assessment of the state of a valuable bioresource of salt lakes - artemia crustacean and its cysts - has never been done before for the southern regions of the Republic of Kazakhstan. The purpose of the study is to characterize the crustacean populations in the south east of Kazakhstan, in three Ray Lakes of the semi-desert Balkhash area and in the piedmont Tuzkol Lake (the Almaty Region). Water mineralization in the Ray Lakes No.1 and No.2 can be called brines (71.5-153.9 g/dm3); Lake No.3 has salty water (16.5-26.2 g/dm3). The amount of ions in waters of Tuzkol Lake did not exceed 46.7 and 52.8 g/dm3 in spring and summer 2017. Its mineralization can reach 160 g/dm3 in October and 278.8 g/dm3 during low-water summer season. The water in the lakes contains sodium chloride, type I or II. It is characterized by a low Na+ : K+ ion ratio in the water in different seasons (4.4-11.2). In the Ray Lakes No.1 and No.2 and Tuzkol Lake the crustacean is represented by parthenogenetic race. No artemia has been found in Ray Lake No.3 against massive development of other zooplankters. Artemia biomass in the Ray Lakes is registered from low to very high (1.9-64.5 g/m3), but the cyst concentration was low (0.1-18.0 thousand specimens/m3). Tuzkol Lake has a very high crustacean production in the beginning and in the end of the vegetation period (71.25-99.75 g/m3). Maximal cyst density was registered there in October (525.000 specimens/m3) and under extreme water salinity (110.000 specimens/m3). Tuzkol Lake is recommended for artemia cyst fishery. The Ray Lakes can be used as a crustacean biofund for inoculation into the water bodies of the southern region.