Salinity as a Key Factor on the Benthic Fauna Diversity in the Coastal Lakes

Benthic communities were studied in nine Polish coastal lakes of the Baltic Sea; representing three levels of hydrological connection with the sea (isolated, periodically connected, and permanently connected), with resultant differences in salinity (freshwater, transitional, and brackish). The lakes...

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Autores principales:	Natalia Mrozińska, Katarzyna Glińska-Lewczuk, Krystian Obolewski
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	macroinvertebrate communities diversity hydrological connectivity brackish sea ecotone zone Veterinary medicine SF600-1100 Zoology QL1-991
Acceso en línea:	https://doaj.org/article/15a65d563eba4b91b96c4e859478500e
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id	oai:doaj.org-article:15a65d563eba4b91b96c4e859478500e
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spelling	oai:doaj.org-article:15a65d563eba4b91b96c4e859478500e2021-11-25T16:14:00ZSalinity as a Key Factor on the Benthic Fauna Diversity in the Coastal Lakes10.3390/ani111130392076-2615https://doaj.org/article/15a65d563eba4b91b96c4e859478500e2021-10-01T00:00:00Zhttps://www.mdpi.com/2076-2615/11/11/3039https://doaj.org/toc/2076-2615Benthic communities were studied in nine Polish coastal lakes of the Baltic Sea; representing three levels of hydrological connection with the sea (isolated, periodically connected, and permanently connected), with resultant differences in salinity (freshwater, transitional, and brackish). The lakes classified in this way allowed us to investigate biodiversity in relation to the degree of environmental pressure. Stress intensity in coastal water bodies, resulting from contrasting marine and terrestrial influences, varied from mild to severe. Spatial variation in environmental predictors affected species richness more strongly than seasonal fluctuations. The broader the spatial salinity gradient, the smaller the species number recorded. Differences in the intensity of natural instability only slightly affected species number and α-diversity. In Baltic coastal lakes, characterized by low salinity (max. 7.5 PSU), benthic faunal communities were dominated by large populations of opportunistic species. This applied primarily to closed systems and those periodically influenced by seawater intrusion. The marine component of fauna played a more important role in increasing the diversity of benthos in permanently open water bodies (brackish). The highest density of benthic fauna was recorded in them, whereas low values were associated with the strongest instability, observed in lakes periodically linked with the sea (transitional).Natalia MrozińskaKatarzyna Glińska-LewczukKrystian ObolewskiMDPI AGarticlemacroinvertebrate communitiesdiversityhydrological connectivitybrackish seaecotone zoneVeterinary medicineSF600-1100ZoologyQL1-991ENAnimals, Vol 11, Iss 3039, p 3039 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	macroinvertebrate communities diversity hydrological connectivity brackish sea ecotone zone Veterinary medicine SF600-1100 Zoology QL1-991
spellingShingle	macroinvertebrate communities diversity hydrological connectivity brackish sea ecotone zone Veterinary medicine SF600-1100 Zoology QL1-991 Natalia Mrozińska Katarzyna Glińska-Lewczuk Krystian Obolewski Salinity as a Key Factor on the Benthic Fauna Diversity in the Coastal Lakes
description	Benthic communities were studied in nine Polish coastal lakes of the Baltic Sea; representing three levels of hydrological connection with the sea (isolated, periodically connected, and permanently connected), with resultant differences in salinity (freshwater, transitional, and brackish). The lakes classified in this way allowed us to investigate biodiversity in relation to the degree of environmental pressure. Stress intensity in coastal water bodies, resulting from contrasting marine and terrestrial influences, varied from mild to severe. Spatial variation in environmental predictors affected species richness more strongly than seasonal fluctuations. The broader the spatial salinity gradient, the smaller the species number recorded. Differences in the intensity of natural instability only slightly affected species number and α-diversity. In Baltic coastal lakes, characterized by low salinity (max. 7.5 PSU), benthic faunal communities were dominated by large populations of opportunistic species. This applied primarily to closed systems and those periodically influenced by seawater intrusion. The marine component of fauna played a more important role in increasing the diversity of benthos in permanently open water bodies (brackish). The highest density of benthic fauna was recorded in them, whereas low values were associated with the strongest instability, observed in lakes periodically linked with the sea (transitional).
format	article
author	Natalia Mrozińska Katarzyna Glińska-Lewczuk Krystian Obolewski
author_facet	Natalia Mrozińska Katarzyna Glińska-Lewczuk Krystian Obolewski
author_sort	Natalia Mrozińska
title	Salinity as a Key Factor on the Benthic Fauna Diversity in the Coastal Lakes
title_short	Salinity as a Key Factor on the Benthic Fauna Diversity in the Coastal Lakes
title_full	Salinity as a Key Factor on the Benthic Fauna Diversity in the Coastal Lakes
title_fullStr	Salinity as a Key Factor on the Benthic Fauna Diversity in the Coastal Lakes
title_full_unstemmed	Salinity as a Key Factor on the Benthic Fauna Diversity in the Coastal Lakes
title_sort	salinity as a key factor on the benthic fauna diversity in the coastal lakes
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/15a65d563eba4b91b96c4e859478500e
work_keys_str_mv	AT nataliamrozinska salinityasakeyfactoronthebenthicfaunadiversityinthecoastallakes AT katarzynaglinskalewczuk salinityasakeyfactoronthebenthicfaunadiversityinthecoastallakes AT krystianobolewski salinityasakeyfactoronthebenthicfaunadiversityinthecoastallakes
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Salinity as a Key Factor on the Benthic Fauna Diversity in the Coastal Lakes

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