{"id":6170,"date":"2023-04-04T15:22:09","date_gmt":"2023-04-04T12:22:09","guid":{"rendered":"https:\/\/lhei.lv\/about-us\/experimental-hydrobiology-department\/"},"modified":"2025-05-04T16:43:41","modified_gmt":"2025-05-04T13:43:41","slug":"experimental-hydrobiology-department","status":"publish","type":"page","link":"https:\/\/lhei.lv\/en\/about-us\/experimental-hydrobiology-department\/","title":{"rendered":"Experimental hydrobiology department"},"content":{"rendered":"\n<div class=\"wp-block-columns alignwide pg-content is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column pg-content-left-side-box is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-uagb-faq uagb-faq__outer-wrap uagb-block-80370c2c uagb-faq-icon-row-reverse uagb-faq-layout-accordion uagb-faq-expand-first-false uagb-faq-inactive-other-true uagb-faq__wrap uagb-buttons-layout-wrap uagb-faq-equal-height     About-us-side-menu\" data-faqtoggle=\"true\" role=\"tablist\"><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-89848e0f \" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<span class=\"uagb-question\">About us<\/span><\/div><div class=\"uagb-faq-content\"><p><a href=\"https:\/\/lhei.lv\/en\/about-us\/history\/\">History<\/a><br><br><a href=\"https:\/\/lhei.lv\/en\/about-us\/structure\/\">Structure<\/a><br><br><a href=\"https:\/\/lhei.lv\/en\/about-us\/quality-assurance-system-accreditation\/\"><\/a><a href=\"https:\/\/lhei.lv\/en\/about-us\/quality-assurance-system-accreditation\/\">Quality assurance and accreditation<\/a><br><br><a href=\"https:\/\/lhei.lv\/en\/about-us\/services\/\"><\/a><a href=\"https:\/\/lhei.lv\/en\/about-us\/services\/\">Services<\/a><\/p><\/div><\/div><\/div>\n\n<div class=\"wp-block-uagb-faq uagb-faq__outer-wrap uagb-block-d2e4f14b uagb-faq-icon-row-reverse uagb-faq-layout-accordion uagb-faq-expand-first-true uagb-faq-inactive-other-true uagb-faq__wrap uagb-buttons-layout-wrap uagb-faq-equal-height     About-us-side-menu\" data-faqtoggle=\"true\" role=\"tablist\"><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-df48f7c8 \" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<span class=\"uagb-question\">E<strong>mployees<\/strong><\/span><\/div><div class=\"uagb-faq-content\"><p><a href=\"https:\/\/lhei.lv\/en\/about-us\/administration\/\">Administration<\/a><br><br><a href=\"https:\/\/lhei.lv\/en\/about-us\/marine-monitoring-department\/\"><\/a><a href=\"https:\/\/lhei.lv\/en\/about-us\/marine-monitoring-department\/\">Marine monitoring department<\/a><br><br><a href=\"https:\/\/lhei.lv\/en\/about-us\/experimental-hydrobiology-department\/\"><\/a><a href=\"https:\/\/lhei.lv\/en\/about-us\/experimental-hydrobiology-department\/\"><strong>Experimental hydrobiology department<\/strong><\/a><br><br><a href=\"https:\/\/lhei.lv\/en\/about-us\/all-staff\/\"><\/a><a href=\"https:\/\/lhei.lv\/en\/about-us\/all-staff\/\">All employees<\/a><\/p><\/div><\/div><\/div>\n\n<div class=\"wp-block-uagb-faq uagb-faq__outer-wrap uagb-block-e0746ed4 uagb-faq-icon-row-reverse uagb-faq-layout-accordion uagb-faq-expand-first-false uagb-faq-inactive-other-true uagb-faq__wrap uagb-buttons-layout-wrap uagb-faq-equal-height     About-us-side-menu\" data-faqtoggle=\"true\" role=\"tablist\"><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-76c49343 \" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewBox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<span class=\"uagb-question\"><strong>Documents<\/strong><\/span><\/div><div class=\"uagb-faq-content\"><p><a href=\"https:\/\/lhei.lv\/en\/about-us\/data-processing-policy\/\">Data processing policy<\/a><br><br><a href=\"https:\/\/lhei.lv\/en\/about-us\/privacy-policy\/\">Privacy policy<\/a><br><br><a href=\"https:\/\/lhei.lv\/en\/about-us\/whistleblowing-policy\/\">Whistleblowing policy<\/a><br><br><a href=\"https:\/\/lhei.lv\/en\/about-us\/regulations\/\">Regulations<\/a><br><br><a href=\"https:\/\/lhei.lv\/en\/about-us\/strategy\/\"><\/a><a href=\"https:\/\/lhei.lv\/en\/about-us\/strategy\/\">Strategy<\/a><br><a href=\"https:\/\/lhei.lv\/en\/about-us\/gender-equality-plan\/\"><br>Gender equality plan<\/a><\/p><\/div><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-column pg-content-content-box is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Experimental hydrobiology department<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Experimental hydrobiology department<\/strong> studies the health of aquatic environments and their determinants, as well as seeks innovative solutions to improve environmental quality. The main research areas of the department are:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ecological risk identification in hydroecosystems;<\/li>\n\n\n\n<li>Biotesting &#8211; determining the toxic effects of toxic substances, polluted waters and sediments using bioassays (at different trophic levels);<\/li>\n\n\n\n<li>Ecotoxicological experiments and tests;<\/li>\n\n\n\n<li>Mass development of dangerous algae in freshwater and marine environments;<\/li>\n\n\n\n<li>Bioaccumulation and toxic effects of algal toxins;<\/li>\n\n\n\n<li>Interactions between bacteria and algal communities;<\/li>\n\n\n\n<li>Developing new methods for monitoring pollutants.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The main task of the Experimental Hydrobiology Unit is to find effective methods for solving problems in the aquatic environment by introducing new or validating existing methods for conditions in Latvia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Currently, one of the most important activities of the department is the assessment of biological effects of pollution of natural and anthropogenic origin in Latvian territorial waters using bioassays and biomarkers. Biotesting uses traditional methods with <em>Daphnia magna <\/em>cultures, as well as brackish water organisms <em>Artemia salina<\/em> and benthic organisms <em>Hiallella azteca<\/em> (HIDROTOX, BIOMAR projects).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The native species <em>Monoporeia affinis<\/em> and <em>Pontogammarus robustoides<\/em> are used to identify pollution in the Baltic Sea, and the biological effects of pollution &#8211; changes in embryogenesis and reproductive disturbances &#8211; are determined. Biological effects of contamination are also being determined in bivalve molluscs using several enzymatic biomarkers (HIDROTOX, BIOMAR, BIODIVERSA, BEACON projects).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At the Experimental hydrobiology department research in freshwater ecosystems is also carried out, to determine the ecological quality of lakes and make recommendations for improving it, and to develop lake management plans.<\/p>\n\n\n\n\t\t\t<div class=\"wp-block-uagb-post-grid uagb-post-grid  uagb-post__image-position-top uagb-post__image-disabled uagb-block-f814cd48     uagb-post__items uagb-post__columns-3 is-grid uagb-post__columns-tablet-2 uagb-post__columns-mobile-1 uagb-post__equal-height\" data-total=\"1\" style=\"\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"uagb-post__inner-wrap\">\t\t\t\t\t\t\t\t<h4 class=\"uagb-post__title uagb-post__text\">\n\t\t\t\t<a href=\"https:\/\/lhei.lv\/en\/ingrida-andersone\/\" target=\"_self\" rel=\"bookmark noopener noreferrer\">Ingr\u012bda Andersone<\/a>\n\t\t\t<\/h4>\n\t\t\t\t\t\t<div class='uagb-post__text uagb-post-grid-byline'>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class='uagb-post__text uagb-post__excerpt'>\n\t\t\t\t\tSenior researcher <br>Experimental Hydrobiology Department<br>ingrida.andersone[at]lhei.lv\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"uagb-post__text uagb-post__cta wp-block-button\">\n\t\t\t\t<a class=\"wp-block-button__link uagb-text-link\" style=\"\" href=\"https:\/\/lhei.lv\/en\/ingrida-andersone\/\" target=\"_self\" rel=\"bookmark noopener noreferrer\">Read more <\/a>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"uagb-post__inner-wrap\">\t\t\t\t\t\t\t\t<h4 class=\"uagb-post__title uagb-post__text\">\n\t\t\t\t<a href=\"https:\/\/lhei.lv\/en\/evita-strode\/\" target=\"_self\" rel=\"bookmark noopener noreferrer\">Evita Strode<\/a>\n\t\t\t<\/h4>\n\t\t\t\t\t\t<div class='uagb-post__text uagb-post-grid-byline'>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class='uagb-post__text uagb-post__excerpt'>\n\t\t\t\t\tResearcher <br>Experimental hydrobiology department<br>evita.strode[at]lhei.lv\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"uagb-post__text uagb-post__cta wp-block-button\">\n\t\t\t\t<a class=\"wp-block-button__link uagb-text-link\" style=\"\" href=\"https:\/\/lhei.lv\/en\/evita-strode\/\" target=\"_self\" rel=\"bookmark noopener noreferrer\">Read more <\/a>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"uagb-post__inner-wrap\">\t\t\t\t\t\t\t\t<h4 class=\"uagb-post__title uagb-post__text\">\n\t\t\t\t<a href=\"https:\/\/lhei.lv\/en\/ieva-barda\/\" target=\"_self\" rel=\"bookmark noopener noreferrer\">Ieva B\u0101rda<\/a>\n\t\t\t<\/h4>\n\t\t\t\t\t\t<div class='uagb-post__text uagb-post-grid-byline'>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class='uagb-post__text uagb-post__excerpt'>\n\t\t\t\t\tResearch<br>Experimental Hydrobiology Department<br>ieva.barda[at]lhei.lv\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"uagb-post__text uagb-post__cta wp-block-button\">\n\t\t\t\t<a class=\"wp-block-button__link uagb-text-link\" style=\"\" href=\"https:\/\/lhei.lv\/en\/ieva-barda\/\" target=\"_self\" rel=\"bookmark noopener noreferrer\">Read more <\/a>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"uagb-post__inner-wrap\">\t\t\t\t\t\t\t\t<h4 class=\"uagb-post__title uagb-post__text\">\n\t\t\t\t<a href=\"https:\/\/lhei.lv\/en\/ieva-putna-nimane\/\" target=\"_self\" rel=\"bookmark noopener noreferrer\">Ieva Putna-N\u012bmane<\/a>\n\t\t\t<\/h4>\n\t\t\t\t\t\t<div class='uagb-post__text uagb-post-grid-byline'>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class='uagb-post__text uagb-post__excerpt'>\n\t\t\t\t\tResearcher<br>Experimental Hydrobiology Department<br>ieva.putna[at]lhei.lv\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"uagb-post__text uagb-post__cta wp-block-button\">\n\t\t\t\t<a class=\"wp-block-button__link uagb-text-link\" style=\"\" href=\"https:\/\/lhei.lv\/en\/ieva-putna-nimane\/\" target=\"_self\" rel=\"bookmark noopener noreferrer\">Read more <\/a>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"uagb-post__inner-wrap\">\t\t\t\t\t\t\t\t<h4 class=\"uagb-post__title uagb-post__text\">\n\t\t\t\t<a href=\"https:\/\/lhei.lv\/en\/ineta-liepina-leimane\/\" target=\"_self\" rel=\"bookmark noopener noreferrer\">Ineta Liepi\u0146a-Leimane<\/a>\n\t\t\t<\/h4>\n\t\t\t\t\t\t<div class='uagb-post__text uagb-post-grid-byline'>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class='uagb-post__text uagb-post__excerpt'>\n\t\t\t\t\tResearcher<br>ineta.liepina[at]lhei.lv\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"uagb-post__text uagb-post__cta wp-block-button\">\n\t\t\t\t<a class=\"wp-block-button__link uagb-text-link\" style=\"\" href=\"https:\/\/lhei.lv\/en\/ineta-liepina-leimane\/\" target=\"_self\" rel=\"bookmark noopener noreferrer\">Read more <\/a>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<article class=\"uagb-post__inner-wrap\">\t\t\t\t\t\t\t\t<h4 class=\"uagb-post__title uagb-post__text\">\n\t\t\t\t<a href=\"https:\/\/lhei.lv\/en\/indra-semjonova\/\" target=\"_self\" rel=\"bookmark noopener noreferrer\">Indra Semjonova<\/a>\n\t\t\t<\/h4>\n\t\t\t\t\t\t<div class='uagb-post__text uagb-post-grid-byline'>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class='uagb-post__text uagb-post__excerpt'>\n\t\t\t\t\tResearch assistant<br>indra.semjonova[at]lhei.lv\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"uagb-post__text uagb-post__cta wp-block-button\">\n\t\t\t\t<a class=\"wp-block-button__link uagb-text-link\" style=\"\" href=\"https:\/\/lhei.lv\/en\/indra-semjonova\/\" target=\"_self\" rel=\"bookmark noopener noreferrer\">Read more <\/a>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t\t\t\t<\/article>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Experimental&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":6086,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_uag_custom_page_level_css":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"pgc_sgb_lightbox_settings":"","footnotes":""},"class_list":["post-6170","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is 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