scholarly journals The invasive amphipod species Gammarus tigrinus (Sexton 1939) can rapidly change littoral communities in the Gulf of Finland (Baltic Sea)

2008 ◽  
Vol 3 (4) ◽  
pp. 405-412 ◽  
Author(s):  
Anna Packalén
Keyword(s):  
Baltic Sea ◽  
Gulf Of Finland ◽  
Amphipod Species ◽  
Gammarus Tigrinus ◽  
Invasive Amphipod ◽  
The Gulf Of Finland

scholarly journals Is a rapid expansion of the invasive amphipod Gammarus tigrinus Sexton, 1939 associated with its niche selection: a case study in the Gulf of Finland, the Baltic Sea

2013 ◽  
Vol 8 (3) ◽  
pp. 319-332 ◽  
Author(s):  
Jonne Kotta ◽  
Merli Pärnoja ◽  
Tarja Katajisto ◽  
Maiju Lehtiniemi ◽  
Stanislaw Malavin ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Rapid Expansion ◽  
Gulf Of Finland ◽  
The Baltic Sea ◽  
Gammarus Tigrinus ◽  
The Baltic ◽  
Invasive Amphipod ◽  
The Gulf Of Finland

Sediment quality assessment using Gmelinoides fasciatus and Monoporeia affinis (Amphipoda, Gammaridea) in the northeastern Baltic Sea

Crustaceana ◽  
2013 ◽  
Vol 86 (7-8) ◽  
pp. 780-801 ◽  
Author(s):  
Nadezhda A. Berezina ◽  
Evita Strode ◽  
Kari K. Lehtonen ◽  
Maija Balode ◽  
Sergey M. Golubkov
Keyword(s):  
Baltic Sea ◽  
Sediment Quality ◽  
Gulf Of Finland ◽  
Toxicity Tests ◽  
Amphipod Species ◽  
Test Species ◽  
Gmelinoides Fasciatus ◽  
Gulf Of Riga ◽  
Study Sites ◽  
The Gulf Of Finland

Crustaceans in the order Amphipoda are sensitive organisms for the assessment of sediment quality. In this work we performed 10-day toxicity tests on muddy sediments collected from a total of 29 sites in the Gulf of Finland, the Gulf of Riga and the Gulf of Bothnia (northeastern Baltic Sea) using Baltic Sea species such as the native amphipod Monoporeia affinis (Bousfield, 1989) and the invasive amphipod Gmelinoides fasciatus (Stebbing, 1899), and also compared these results with those of bioassays carried out using the standard test species, laboratory-cultivated amphipod Hyalella azteca (Saussure, 1858). The sediment samples (three cm of the upper layer) were collected by a GEMAX Dual Corer during the R/V “Aranda” cruises in August and September of 2009 and 2010. Toxicity of sediments in bioassays with M. affinis and G. fasciatus gave varied results depending on the amphipod species used. The lowest quality of sediments determined using M. affinis was recorded at sites located in the offshore and deepwater areas (60-100 m depths) of the Gulf of Finland characterized by hypoxic/anoxic conditions. Toxicity testing applying G. fasciatus showed that sediments at >50% of the study sites in the Gulf of Finland and in the Gulf of Riga can be assessed as highly contaminated. Males of G. fasciatus were significantly more sensitive to potential contamination in sediments than females. The lower survival of males under contaminant stress may result in a skewed sex ratio in natural populations and in a decline of reproduction success. The survival rate of G. fasciatus in the toxicity tests correlated positively with the Shannon diversity index (calculated for macrozoobenthos at the study sites), weight losses on ignition (%) in sediments, and it also showed a negative relation with the bottom water oxygen content (mg/l). The results suggest that G. fasciatus is the more sensitive species of the three amphipods tested and can be used as a indicator of sediment quality in the Baltic Sea and other water bodies.

The mussel caging approach in assessing biological effects of wastewater treatment plant discharges in the Gulf of Finland (Baltic Sea)

2015 ◽  
Vol 97 (1-2) ◽  
pp. 135-149 ◽  
Author(s):  
Raisa Turja ◽  
Kari K. Lehtonen ◽  
Axel Meierjohann ◽  
Jenny-Maria Brozinski ◽  
Emil Vahtera ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Baltic Sea ◽  
Wastewater Treatment Plant ◽  
Biological Effects ◽  
Treatment Plant ◽  
Gulf Of Finland ◽  
The Gulf Of Finland

scholarly journals An integrated simulation model to evaluate national measures for the abatement of agricultural nutrients in the Baltic Sea

2009 ◽  
Vol 18 (3-4) ◽  
pp. 440-459 ◽  
Author(s):  
K. HYYTIÄINEN ◽  
H. AHTIAINEN ◽  
J. HEIKKILÄ
Keyword(s):  
Water Quality ◽  
Simulation Model ◽  
Baltic Sea ◽  
Arable Land ◽  
Gulf Of Finland ◽  
Nutrient Loads ◽  
The Baltic Sea ◽  
The Baltic ◽  
Bothnian Bay ◽  
The Gulf Of Finland

This study introduces a prototype model for evaluating measures to abate agricultural nutrients in the Baltic Sea from a Finnish national perspective. The stochastic simulation model integrates nutrient dynamics of nitrogen and phosphorus in the sea basins adjoining the Finnish coast, nutrient loads from land and other sources, benefits from nutrient abatement (in the form of recreation and other ecosystem services) and the costs of agricultural abatement activities. The aim of the study is to present the overall structure of the model and to demonstrate its potential using preliminary parameters. The model is made flexible for further improvements in all of its ecological and economic components. The results of a sensitivity analysis suggest that investments in reducing the nutrient load from arable land in Finland would become profitable only if the neighboring countries in the northern Baltic committed themselves to similar reductions. Environmental investments for improving water quality yield the highest returns for the Bothnian Bay and the Gulf of Finland, with smaller returns for the Bothnian Sea. Somewhat surprisingly, in the Bothnian Bay the abatement activities become profitable from the national viewpoint, because the riverine loads from Finland represent a high proportion of the total nutrient loads. In the Gulf of Finland, this proportion is low, but the size of the coastal population benefiting from improved water quality is high.;

Three new chrysophycean stomatocysts with long spines from the Gulf of Finland, Baltic Sea

Phytotaxa ◽  
2021 ◽  
Vol 528 (4) ◽  
pp. 255-260
Author(s):  
SVETLANA N. SHADRINA
Keyword(s):  
Baltic Sea ◽  
Working Group ◽  
Gulf Of Finland ◽  
Sem Micrographs ◽  
Biological Affinity ◽  
The Gulf Of Finland

Three new morphotypes of chrysophycean stomatocysts with long spines are described following International Statospore Working Group (ISWG) guidelines and illustrated by SEM micrographs. Differences of our new morphotypes from known stomatocysts are discussed. Their biological affinity is currently unknown.

scholarly journals Near-Bottom Hypoxia Impacts Dynamics of Bacterioplankton Assemblage throughout Water Column of the Gulf of Finland (Baltic Sea)

PLoS ONE ◽  
2016 ◽  
Vol 11 (5) ◽  
pp. e0156147 ◽  
Author(s):  
Peeter Laas ◽  
Elina Šatova ◽  
Inga Lips ◽  
Urmas Lips ◽  
Jaak Simm ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Water Column ◽  
Gulf Of Finland ◽  
Bottom Hypoxia ◽  
The Gulf Of Finland

scholarly journals Influence of St. Petersburg urban rivers on the inflow of pollutants into the Baltic Sea

2020 ◽  
Vol 163 ◽  
pp. 03006
Author(s):  
Stepan Klubov ◽  
Victor Tretyakov
Keyword(s):  
Baltic Sea ◽  
Gulf Of Finland ◽  
Urban Rivers ◽  
The Baltic Sea ◽  
Saint Petersburg ◽  
The Baltic ◽  
The Gulf Of Finland

The results of the calculation of the inflow of pollutants into the Gulf of Finland with the outflow from Saint Petersburg watercourses are considered. Data of regular hydrochemical observations by State Unitary Enterprise “Vodokanal of Saint Petersburg” for 2018 were used for the calculation. The contribution of the megalopolis of Saint Petersburg to change of the pollutants inflow is estimated.

Sign in / Sign up

Export Citation Format

Share Document