Results of monitoring of microalgae of harmful algal bloom (HAB) complex in the Avachisky Gulf in 2022

Abstract

The object of the research is microalgae of HAB complex (harmful algal “bloom”). The purpose of the work is to provide monitoring data on HABs and the microalgae habitat conditions near the eastern coast of Kamchatka, which is currently the focus of attention of the Kamchatka government in terms of development of recreational and tourist activities, one of the priority economic directions. Suface water samples were collected at the coastal transect, stretching along the whole coast of the Avachinsky Gulf in the process of the work from April to October. Hydrological data were collected with Rinko- Profi lerASTD-102 and YCI CastAway probes. In June, the data were collected as part of planned ichthyoplankton survey. As a result, a real database on taxonomic composition, quantitative vales and distribution of microalgae of the HAB complex was formed. Data on water temperature and salinity, biogenic background of the Avachinsky Gulf coastal waters were obtained.