Changes in the composition and abundance of ichthyoplankton along environmental gradients of the southern Baltic Sea

Małgorzata Dembek , Luiza Bielecka , Piotr Margoński , Tycjan Wodzinowski


AbstractThe research focuses mainly on the ichthyoplankton of the Baltic deeps – the inflow route from the North Sea. The ichthyoplankton was represented by eggs and larvae of nine fish species: sprat, cod, herring, European flounder, fourbeard rockling, longspined bullhead, straightnose pipefish, sand goby and great sandeel. The species composition of ichthyoplankton varied depending on the location of a given site – the number of taxa ranged from one to five. The Slupsk Furrow was the most diversified area in terms of the number of taxa, while the highest abundance of ichthyoplankton occurred in the Bornholm Basin. The sprat clearly dominated and inhabited all the surveyed depths. Of the remaining species, only cod eggs as well as eggs and larvae of the fourbeard rockling significantly contributed to this formation. They occurred within their main spawning grounds (Bornholm Deep in the near-bottom layers) and secondary spawning grounds (Slupsk Furrow and Gdansk Deep) where salinity and oxygenation of water favored their development. Biometric research has shown that the diameter of eggs was within the size range typical of the Baltic Sea.
Author Małgorzata Dembek
Małgorzata Dembek,,
, Luiza Bielecka (FOG / IO / DMEF)
Luiza Bielecka,,
- Division of Marine Ecosystems Functioning
, Piotr Margoński
Piotr Margoński,,
, Tycjan Wodzinowski
Tycjan Wodzinowski,,
Journal seriesOceanological and Hydrobiological Studies, ISSN 1730-413X, e-ISSN 1897-3191, (N/A 40 pkt)
Issue year2019
Publication size in sheets0.5
Keywords in Polishichtioplankton, głębie, Morze Bałtyckie, jaja ryb
Keywords in Englishichthyoplankton, deeps, Baltic Sea, fish eggs
ASJC Classification1910 Oceanography
Languageen angielski
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 28-01-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.463; WoS Impact Factor: 2018 = 0.674 (2) - 2018=0.854 (5)
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