The spiny-cheek crayfish Orconectes limosus (Rafinesque, 1817) as an inhabitant of the Baltic Sea — experimental evidences for its invasion of brackish waters

AbstractThe main aim of the present study was to determine the effect of low salinity conditions (3 PSU and 7 PSU) on the hatching success, growth and mortality of Orconectes limosus. The results revealed that berried females survived exposure to salinities of 3 PSU and 7 PSU whilst incubating their eggs. The reproductive success reached 100% at both salinities. The length increment of young crayfish per molt was larger at 7 PSU than at 3 PSU — but their condition was affected by higher salinity. The mortality among juveniles reached approximately 50% within 5 weeks of hatching at both salinities.

Download Full-text

REPRODUCTIVE SUCCESS OF FUCUS VESICULOSUS (PHAEOPHYCEAE) IN THE BALTIC SEA

Journal of Phycology ◽

10.1046/j.1529-8817.1999.3520254.x ◽

1999 ◽

Vol 35 (2) ◽

pp. 254-269 ◽

Cited By ~ 70

Author(s):

Ester A. Serrão ◽

Susan H. Brawley ◽

Jenny Hedman ◽

Lena Kautsky ◽

Göran Samuelsson

Keyword(s):

Reproductive Success ◽

Baltic Sea ◽

Fucus Vesiculosus ◽

The Baltic Sea ◽

The Baltic

Download Full-text

Direct calorimetric studies on the metabolic rate of Gammarus oceanicus from the brackish waters of the Baltic Sea

Thermochimica Acta ◽

10.1016/j.tca.2004.06.022 ◽

2004 ◽

Vol 422 (1-2) ◽

pp. 49-54 ◽

Cited By ~ 10

Author(s):

Monika Normant ◽

Tomasz Lapucki ◽

Erik Schmolz ◽

Ingolf Lamprecht

Keyword(s):

Metabolic Rate ◽

Baltic Sea ◽

The Baltic Sea ◽

Brackish Waters ◽

Calorimetric Studies ◽

The Baltic

Download Full-text

Strontium, dissolved and particulate loads in fresh and brackish waters: The Baltic Sea and Mississippi Delta

Earth and Planetary Science Letters ◽

10.1016/0012-821x(94)00062-x ◽

1994 ◽

Vol 124 (1-4) ◽

pp. 195-210 ◽

Cited By ~ 65

Author(s):

Per S. Andersson ◽

G.J. Wasserburg ◽

Johan Ingri ◽

Mary C. Stordal

Keyword(s):

Baltic Sea ◽

Mississippi Delta ◽

The Baltic Sea ◽

Brackish Waters ◽

Particulate Loads ◽

The Baltic

Download Full-text

Anomaly of total boron concentration in the brackish waters of the Baltic Sea and its consequence for the CO2 system calculations

Marine Chemistry ◽

10.1016/j.marchem.2018.05.007 ◽

2018 ◽

Vol 204 ◽

pp. 11-19 ◽

Cited By ~ 3

Author(s):

Karol Kuliński ◽

Beata Szymczycha ◽

Katarzyna Koziorowska ◽

Karoline Hammer ◽

Bernd Schneider

Keyword(s):

Baltic Sea ◽

Boron Concentration ◽

The Baltic Sea ◽

Brackish Waters ◽

The Baltic

Download Full-text

Spiny-cheek crayfish Orconectes limosus (Rafinesque, 1817) on its way to the open coastal waters of the Baltic Sea

Oceanological and Hydrobiological Studies ◽

10.1515/ohs-2017-0044 ◽

2017 ◽

Vol 46 (4) ◽

Author(s):

Anna Szaniawska ◽

Aldona Dobrzycka-Krahel ◽

Joanna Jaszczołt

Keyword(s):

Baltic Sea ◽

Coastal Waters ◽

The Baltic Sea ◽

Orconectes Limosus ◽

Adaptive Capabilities ◽

The Baltic

AbstractThe aim of this work was to assess the adaptive capabilities of the spiny-cheek crayfish

Download Full-text

First record of the freshwater green alga Scotinosphaera austriaca from the Baltic Sea

Plant and Fungal Systematics ◽

10.2478/pfs-2018-0008 ◽

2018 ◽

Vol 63 (2) ◽

pp. 65-67

Author(s):

Marek Klin ◽

Zuzanna Kowalska ◽

Filip Pniewski ◽

Adam Latała

Keyword(s):

Baltic Sea ◽

Green Alga ◽

Genetic Data ◽

First Record ◽

Morphological Characters ◽

The Baltic Sea ◽

Brackish Waters ◽

Green Microalga ◽

Taxonomic Affiliation ◽

The Baltic

AbstractThe freshwater green microalga Scotinosphaera austriaca has been recorded from the brackish waters of the Gulf of Gdańsk (Baltic Sea). Morphological characters and genetic data were analyzed to confirm the taxonomic affiliation. This species bears features unusual in representatives of Ulvophyceae present in the Baltic Sea.

Download Full-text

Salinity Driven Selection and Local Adaptation in Baltic Sea Mytilid Mussels

Frontiers in Marine Science ◽

10.3389/fmars.2021.692078 ◽

2021 ◽

Vol 8 ◽

Author(s):

Loreen Knöbel ◽

Jennifer C. Nascimento-Schulze ◽

Trystan Sanders ◽

Dominique Zeus ◽

Claas Hiebenthal ◽

...

Keyword(s):

Baltic Sea ◽

Local Adaptation ◽

Transition Zone ◽

Selective Pressure ◽

Future Climate Change ◽

Larval Performance ◽

The Baltic Sea ◽

Low Salinity ◽

The Baltic ◽

Eastern Baltic

Baltic blue mussels can colonise and dominate habitats with far lower salinity (<10 psu) than other Mytilus congeners. Pervasive gene flow was observed between Western Baltic Mytilus edulis living at high salinity conditions and Eastern Baltic M. trossulus living at lower salinites, with highest admixture proportions within a genetic transition zone located at intermediate salinities (Darss Sill area). Yet, we do not understand the impacts of low salinity on larval performance, and how salinity may act as an early selective pressure during passive larval drift across salinity gradients. This study tested whether larvae originating from two different populations along the natural salinity cline in the Baltic Sea have highest fitness at their native salinities. Our results suggest that Eastern Baltic M. trossulus (Usedom, 7 psu) and Western Baltic M. edulis (Kiel, 16 psu) larvae display better performance (fitness components: growth, mortality, settlement success) when reared at their respective native salinities. This suggests that these populations are adapted to their local environment. Additionally, species diagnostic markers were used for genetic analyses of transition zone (Ahrenshoop, 11 psu) mussel larvae exposed to low salinity. This revealed that low salinity selection resulted in a shift towards allele frequencies more typical for Eastern Baltic M. trossulus. Thus, salinity acts as a selective pressure during the pre-settlement phase and can shape the genetic composition of Baltic mussel populations driving local adaptation to low salinity. Future climate change driven desalination, therefore, has the potential to shift the Baltic Sea hybrid gradient westward with consequences for benthic ecosystem structure.

Download Full-text

Copepod reproductive success in spring-bloom communities with modified diatom and dinoflagellate dominance

ICES Journal of Marine Science ◽

10.1093/icesjms/fsr138 ◽

2011 ◽

Vol 69 (3) ◽

pp. 351-357 ◽

Cited By ~ 16

Author(s):

Anu Vehmaa ◽

Anke Kremp ◽

Timo Tamminen ◽

Hedvig Hogfors ◽

Kristian Spilling ◽

...

Keyword(s):

Reproductive Success ◽

Baltic Sea ◽

Egg Production ◽

Hatching Success ◽

Spring Bloom ◽

Egg Hatching ◽

Specific Effects ◽

Natural Spring ◽

The Baltic ◽

Species Specific

Abstract Vehmaa, A., Kremp, A., Tamminen, T., Hogfors, H., Spilling, K., and Engström-Öst, J. 2012. Copepod reproductive success in spring-bloom communities with modified diatom and dinoflagellate dominance. – ICES Journal of Marine Science, 69: 351–357. Dinoflagellates have increased and diatoms decreased in the Baltic Sea in recent decades, possibly because of changes in the climate and altered patterns of stratification. The hypothesis that grazing copepods would benefit from the change in species composition was tested experimentally by studying the reproductive output of the crustacean copepod Eurytemora affinis in five Baltic Sea phytoplankton spring communities dominated by different dinoflagellates (Biecheleria baltica, Gymnodinium corollarium) and diatoms (Chaetoceros cf. wighamii, Skeletonema marinoi, and Thalassiosira baltica). After a 5-d acclimation and a 4-d incubation, egg production, egg hatching success, and the RNA:DNA ratio of E. affinis were measured. Egg production was highest on a G. corollarium-dominated diet and lowest on a S. marinoi-dominated diet and on a B. baltica-dominated natural spring bloom, but there were no differences in hatching success. The results demonstrate strong species-specific effects unconstrained by the dominating group. Hence, the hypothesis of specific effects derived from a diatom or dinoflagellate diet is too simplistic, and there is a need to explore phytoplankton taxa at a species level to reveal the reasons for copepod reproductive success.

Download Full-text