3 results match your criteria: "Institute of Oceanology-BAS[Affiliation]"
Chaotic genetic structure and past demographic expansion of the invasive gastropod Tritia neritea in its native range, the Mediterranean Sea.
Sci Rep
December 2020
PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Laboratoire d'Excellence « CORAIL », Université de Perpignan, 52 Avenue Paul Alduy, 66860, Perpignan Cedex, France.
Article Synopsis
- Understanding the genetic diversity and structure of the invasive species Tritia neritea in its native area is essential for predicting its population evolution in introduced regions.
- The study utilized mitochondrial COI gene analysis and microsatellite markers to determine past demographic changes and current genetic organization, revealing significant population expansions and geographic clustering post-glacial maximum.
- Results indicate a strong genetic structure influenced by natural processes and human transport, contrasting with the patterns observed in introduced areas, which may lead to different evolutionary outcomes for the species.
Effect of invasive ctenophores Mnemiopsis leidyi and Beroe ovata on low trophic webs of the Black Sea ecosystem.
Mar Pollut Bull
April 2019
Institute of Oceanology BAS, 40 Parvi Mai street, 9000 Varna, Bulgaria.
The study focuses on the impact of life excretion and mucus released by the "biological pollutants" invasive ctenophore Mnemiopsis leidyi and its predator Beroe ovata on the marine environment and lower trophic levels of the Black Sea ecosystem (bacteria, pico-phytoplankton, nano-autotrophic/heterotrophic flagellates, micro-phytoplankton, chlorophyll a, primary production (PP), micro-zooplankton). The chemical and biological variables were analysed in two sets of lab experiments with natural communities from mesotrophic (Gelendzhik) and eutrophic (Varna) coastal waters. While both species altered the chemical properties of experimental media, exerting structural and functional changes in the low food-web biological compartments, the results showed a stronger effect of B.
View Article and Find Full Text PDFContamination of sediments in Varna Lake and Varna Bay.
Water Sci Technol
January 2005
Institute of Oceanology-BAS, Varna 9000, Bulgaria.
Varna Bay is one of the hot spots along the Black Sea coastal zone. Its ecological state is strongly influenced by the connection with the Varna Lake. Along the lake coast are located many sources of pollution such as rivers, ports, chemical industry, WWTPs.
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