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Porseryd, T., Larsson, J., Lindman, J., Malmström, E., Smolarz, K., Grahn, M. & Dinnétz, P. (2024). Effects on food intake of Gammarus spp. after exposure to PFBA in very low concentrations. Marine Pollution Bulletin, 202, Article ID 116369.
Open this publication in new window or tab >>Effects on food intake of Gammarus spp. after exposure to PFBA in very low concentrations
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2024 (English)In: Marine Pollution Bulletin, ISSN 0025-326X, E-ISSN 1879-3363, Vol. 202, article id 116369Article in journal (Refereed) Published
Abstract [en]

Per- and polyfluoroalkyl substances (PFAS) are a group of thousands of highly persistent anthropogenic chemicals widely used in many industries. Therefore, they are, ubiquitously present in various types of environments. Despite their omnipresence, ecotoxicological studies of most PFAS are scarce, and those available often assess the effects of long chain PFAS. In this study, we present the results of an exposure experiment in which wild aquatic amphipod Gammarus spp. was exposed to the short chain perfluorinated substance perfluorobutanoic acid (PFBA) at very low and environmentally relevant concentrations of 0, 10 and 100 ng/L. The exposure lasted for 12 days, and food intake and non-reproductive behavior were analyzed. Exposure to 10 and 100 ng/L PFBA resulted in a lower consumption of food during exposure but no effect on behavior was found. 

Place, publisher, year, edition, pages
Elsevier, 2024
Keywords
Aquatic environment, Behavioral, Feeding, Gammarids, PFAS, PFBA, Pollution, Anthropogenic chemicals, Aquatic environments, Ecotoxicological study, Food intake, Gammarid, Gammarus, Low concentrations, Perfluorobutanoic acid, Polyfluoroalkyl substances
National Category
Environmental Sciences
Identifiers
urn:nbn:se:sh:diva-53914 (URN)10.1016/j.marpolbul.2024.116369 (DOI)38640762 (PubMedID)2-s2.0-85190529991 (Scopus ID)
Available from: 2024-04-24 Created: 2024-04-24 Last updated: 2024-04-24Bibliographically approved
Sanyal, A., Larsson, J., van Wirdum, F., Andrén, T., Moros, M., Lönn, M. & Andrén, E. (2022). Not dead yet: Diatom resting spores can survive in nature for several millennia. American Journal of Botany, 67-82
Open this publication in new window or tab >>Not dead yet: Diatom resting spores can survive in nature for several millennia
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2022 (English)In: American Journal of Botany, ISSN 0002-9122, E-ISSN 1537-2197, p. 67-82Article in journal (Refereed) Published
Abstract [en]

PREMISE: Understanding the adaptive capacities of species over long timescales lies in examining the revived recent and millennia old resting spores buried in sediments. We show for the first time the revival, viability and germination rate of resting spores of the diatom Chaetoceros deposited in sub-seafloor sediments from three ages (recent: 0-80 years; ancient: ~1250 (Medieval Climate Anomaly) and ~6600 (Holocene Thermal Maximum) calendar year before present.

METHODS: Recent and ancient Chaetoceros spores were revived to examine their viability and germination rate. Light and scanning electron microscopy and Sanger sequencing was done to identify the species.

KEY RESULTS: We show that ~6600 cal. year BP old Chaetoceros resting spores are still viable and the vegetative reproduction in recent and ancient resting spores vary. The time taken to germinate is three hours to 2-3 days in both recent and ancient spores, but the germination rate of the spores decreased with increasing age. The germination rate of the recent spores was ~41% while that of the ancient spores were ~31% and ~12% for the ~1250 and ~6600 cal. year BP old resting spores. Based on the morphology of the germinated vegetative cells we identified the species as Chaetoceros muelleri var. subsalsum. Sanger sequences of nuclear and chloroplast markers identified the species as Chaetoceros muelleri.

CONCLUSIONS: We identify a unique model system, Chaetoceros muelleri var. subsalsum and show that recent and ancient resting spores of the species buried in sediments in the Baltic Sea can be revived and used for long-term evolutionary studies.

Place, publisher, year, edition, pages
Botanical Society of America, 2022
Keywords
Baltic Sea, Chaetoceros muelleri var. subsalsum, Germination rate, Resting spore concentration, Resurrection ecology
National Category
Botany Ecology
Research subject
Baltic and East European studies
Identifiers
urn:nbn:se:sh:diva-46593 (URN)10.1002/ajb2.1780 (DOI)000739921100001 ()34648178 (PubMedID)2-s2.0-85122424760 (Scopus ID)
Funder
The Foundation for Baltic and East European Studies, 75/2014
Available from: 2021-10-20 Created: 2021-10-20 Last updated: 2022-03-02Bibliographically approved
Banyoi, S.-M., Porseryd, T., Larsson, J., Grahn, M. & Dinnétz, P. (2022). The effects of exposure to environmentally relevant PFAS concentrations for aquatic organisms at different consumer trophic levels: Systematic review and meta-analyses. Environmental Pollution, 315, Article ID 120422.
Open this publication in new window or tab >>The effects of exposure to environmentally relevant PFAS concentrations for aquatic organisms at different consumer trophic levels: Systematic review and meta-analyses
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2022 (English)In: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 315, article id 120422Article, review/survey (Refereed) Published
Abstract [en]

Per-and polyfluoroalkyl substances (PFAS) is a collective name for approximately 4700 synthetic chemicals ubiquitous in the aquatic environment worldwide. They are used in a wide array of products and are found in living organisms around the world. Some PFAS have been associated with cancer, developmental toxicity, endocrine disruption, and other health effects. Only a fraction of PFAS are currently monitored and regulated and the presence and effects on aquatic organisms of many PFAS are largely unknown. The aim of this study is to investigate the health effects of environmentally relevant concentrations of PFAS on aquatic organisms at different consumer trophic levels through a systematic review and meta-analysis. The main result shows that PFAS in concentrations up to 13.5 μg/L have adverse effects on body size variables for secondary consumers. However, no significant effects on liver or gonad somatic indices and neither on fecundity were found. In addition, the results show that there are large research gaps for PFAS effects on different organisms in aquatic environments at environmentally relevant concentrations. Most studies have been performed on secondary consumers and there is a substantial lack of studies on other consumers in aquatic ecosystems.

Place, publisher, year, edition, pages
Elsevier, 2022
Keywords
Aquatic organisms, Exposure effects, PFAS, Systematic review, meta-Analysis
National Category
Biological Sciences
Identifiers
urn:nbn:se:sh:diva-50117 (URN)10.1016/j.envpol.2022.120422 (DOI)000884336000010 ()36244496 (PubMedID)2-s2.0-85140274537 (Scopus ID)3790–3.1.1–2020 (Local ID)3790–3.1.1–2020 (Archive number)3790–3.1.1–2020 (OAI)
Funder
The Foundation for Baltic and East European Studies, S2-20-0019
Available from: 2022-10-21 Created: 2022-10-21 Last updated: 2022-11-29Bibliographically approved
Eggertsen, M., Larsson, J., Porseryd, T., Åkerlund, C., Chacin, D. H., Berkström, C., . . . Halling, C. (2021). Coral-macroalgal interactions: Herbivory and substrate type influence growth of the macroalgae Eucheuma denticulatum (NL Burman) Collins & Hervey, 1917 on a tropical coral reef. Journal of Experimental Marine Biology and Ecology, 542, Article ID 151606.
Open this publication in new window or tab >>Coral-macroalgal interactions: Herbivory and substrate type influence growth of the macroalgae Eucheuma denticulatum (NL Burman) Collins & Hervey, 1917 on a tropical coral reef
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2021 (English)In: Journal of Experimental Marine Biology and Ecology, ISSN 0022-0981, E-ISSN 1879-1697, Vol. 542, article id 151606Article in journal (Refereed) Published
Abstract [en]

Introduced macroalgae becoming invasive may alter ecological functions and habitats in recipient ecosystems. In the Western Indian Ocean (WIO), non-native strains of the native macroalgae Eucheuma denticulatum were introduced for farming practices and consequently spread into the surrounding seascape. We investigated potential effects of non-native and native strains of this macroalgae on a branching coral. We conducted a four-factor field experiment where we examined growth and holdfast development of introduced and native E. denticulatum on live and dead branches of Acropora sp. in the presence and absence of herbivores in Unguja Island, Zanzibar. Moreover, we estimated coral and macroalgae condition by visual examinations, gene expression analyses, and photosynthetic measurements. Macroalgae did not attach to any live coral and coral condition was not impacted by the presence of E. denticulatum, regardless of geographical origin. Instead, necrotic tissue on the macroalgae in areas of direct contact with corals indicated damage inflicted by the coral. The biomass of E. denticulatum did not differ between the replicates attached to live or dead corals in the experiment, yet biomass was strongly influenced by herbivory and replicates without protection from herbivores had a significantly lower biomass. In the absence of herbivory, introduced E. denticulatum had significantly higher growth rates than native algae based on wet weight measurements. These results contribute to an increased understanding of environmental effects by the farming of a non-native strain of algae on corals and stresses the importance to maintain viable populations of macroalgal feeding fishes in such areas.

Place, publisher, year, edition, pages
Elsevier, 2021
National Category
Ecology
Identifiers
urn:nbn:se:sh:diva-46321 (URN)10.1016/j.jembe.2021.151606 (DOI)000687854700009 ()2-s2.0-85109542670 (Scopus ID)
Funder
Swedish Research Council, 2014-3264Swedish Research Council, 2015-05848Swedish Research Council, E0344801
Note

This work was supported by Albert & Maria Bergström's Foundation and the Swedish Research Council [grant numbers 2014-3264, 2015-05848 and E0344801].

Available from: 2021-09-02 Created: 2021-09-02 Last updated: 2022-11-03Bibliographically approved
Eggertsen, M., Tano, S. A., Chacin, D. H., Eklöf, J. S., Larsson, J., Berkström, C., . . . Halling, C. (2021). Different environmental variables predict distribution and cover of the introduced red seaweed Eucheuma denticulatum in two geographical locations. Biological Invasions, 23, 1049-1067
Open this publication in new window or tab >>Different environmental variables predict distribution and cover of the introduced red seaweed Eucheuma denticulatum in two geographical locations
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2021 (English)In: Biological Invasions, ISSN 1387-3547, E-ISSN 1573-1464, Vol. 23, p. 1049-1067Article in journal (Refereed) Published
Abstract [en]

In this study we examined abiotic and biotic factors that could potentially influence the presence of a non-indigenous seaweed, Eucheuma denticulatum, in two locations, one outside (Kane’ohe Bay, Hawai’i, USA) and one within (Mafia Island, Tanzania) its natural geographical range. We hypothesized that the availability of hard substrate and the amount of wave exposure would explain distribution patterns, and that higher abundance of herbivorous fishes in Tanzania would exert stronger top–down control than in Hawai’i. To address these hypotheses, we surveyed E. denticulatum in sites subjected to different environmental conditions and used generalized linear mixed models (GLMM) to identify predictors of E. denticulatum presence. We also estimated grazing intensity on E. denticulatum by surveying the type and the amount of grazing scars. Finally, we used molecular tools to distinguish between indigenous and non-indigenous strains of E. denticulatum on Mafia Island. In Kane’ohe Bay, the likelihood of finding E. denticulatum increased with wave exposure, whereas on Mafia Island, the likelihood increased with cover of coral rubble, and decreased with distance from areas of introduction (AOI), but this decrease was less pronounced in the presence of coral rubble. Grazing intensity was higher in Kane’ohe Bay than on Mafia Island. However, we still suggest that efforts to reduce non-indigenous E. denticulatum should include protection of important herbivores in both sites because of the high levels of grazing close to AOI. Moreover, we recommend that areas with hard substrate and high structural complexity should be avoided when farming non-indigenous strains of E. denticulatum.

Place, publisher, year, edition, pages
Springer, 2021
Keywords
Environmental factors, Herbivory, Introduced seaweeds, Invasive species, Macroalgae, Phase shift
National Category
Ecology
Identifiers
urn:nbn:se:sh:diva-42287 (URN)10.1007/s10530-020-02417-z (DOI)000591553700001 ()2-s2.0-85096398222 (Scopus ID)
Funder
Swedish Research Council, 2015-05848Swedish Research Council, 2014-03264
Available from: 2020-12-01 Created: 2020-12-01 Last updated: 2021-04-07Bibliographically approved
Porseryd, T., Larsson, J., Kellner, M., Bollner, T., Dinnétz, P. & Porsch Hällström, I. (2019). Altered non-reproductive behavior and feminization caused by developmental exposure to 17α-ethinylestradiol persist to adulthood in three-spined stickleback (Gasterosteus aculeatus). Aquatic Toxicology, 207, 142-152
Open this publication in new window or tab >>Altered non-reproductive behavior and feminization caused by developmental exposure to 17α-ethinylestradiol persist to adulthood in three-spined stickleback (Gasterosteus aculeatus)
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2019 (English)In: Aquatic Toxicology, ISSN 0166-445X, E-ISSN 1879-1514, Vol. 207, p. 142-152Article in journal (Refereed) Published
Abstract [en]

The synthetic estrogen 17α-ethinylestradiol (EE2), ubiquitous in the aquatic environment and commonly detected in sewage effluents, interferes with the endocrine system in multiple ways. Exposure during sensitive windows of development causes persistent effects on fertility, reproductive and non-reproductive behavior in mammals and fish. In the present study, three-spined stickleback (Gasterosteus aculeatus) were exposed to nominal 0 and 20 ng/L EE2 from fertilization to 7 weeks post-hatch. After 8 months of remediation in clean water three non-reproductive behaviors, not previously analyzed in developmentally EE2-exposed progeny of wild-caught fish, were evaluated. Chemical analysis revealed that the nominal 0 and 20 ng/L exposure contained 5 and 30 ng/L EE2, respectively. Therefore, the use of control fish from previous experiments was necessary for comparisons. Fish exposed during development showed significant concentration-dependent reduction in anxiety-like behavior in the scototaxis (light/dark preference) test by means of shorter latency to first entrance to the white compartment, more visits in white, and longer total time in white compared to unexposed fish. In the novel tank test, developmental exposure significantly increased the number of transitions to the upper half of the aquaria. Exposure to EE2 during development did not alter shoal cohesion in the shoaling test compared with unexposed fish but fish exposed to 30 ng/L EE2 had significantly longer latency to leave the shoal and fewer transitions away from the shoal compared to fish exposed to 5 ng/L EE2. Skewed sex ratio with more females, sex reversal in genetic males as well as intersex in males was observed after exposure to 30, but not 5 ng/L EE2. In conclusion, EE2 exposure during development in three-spined stickleback resulted in persistent effects on anxiety-like behaviors. These long-term effects from developmental exposure are likely to be of higher relevance for natural populations than are short-term effects from adult exposure.

Place, publisher, year, edition, pages
Elsevier, 2019
Keywords
Endocrine disruption, 17α-ethinylestradiol, fish, estrogens, developmental exposure, behavior, intersex
National Category
Environmental Sciences
Research subject
Environmental Studies; Baltic and East European studies
Identifiers
urn:nbn:se:sh:diva-34932 (URN)10.1016/j.aquatox.2018.11.024 (DOI)000457659300016 ()30572174 (PubMedID)2-s2.0-85058462347 (Scopus ID)1556/42/2011 (Local ID)1556/42/2011 (Archive number)1556/42/2011 (OAI)
Funder
The Foundation for Baltic and East European Studies, A065-2011
Note

As manuscript in dissertation.

Available from: 2018-05-04 Created: 2018-05-04 Last updated: 2021-01-25Bibliographically approved
Jahnke, M., Gullström, M., Larsson, J., Asplund, M. E., Mgeleka, S., Silas, M. O., . . . Nordlund, L. M. (2019). Population genetic structure and connectivity of the seagrass Thalassia hemprichii in the Western Indian Ocean is influenced by predominant ocean currents. Ecology and Evolution, 9(16), 8953-8964
Open this publication in new window or tab >>Population genetic structure and connectivity of the seagrass Thalassia hemprichii in the Western Indian Ocean is influenced by predominant ocean currents
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2019 (English)In: Ecology and Evolution, E-ISSN 2045-7758, Vol. 9, no 16, p. 8953-8964Article in journal (Refereed) Published
Abstract [en]

This study is the first large-scale genetic population study of a widespread climax species of seagrass, Thalassia hemprichii, in the Western Indian Ocean (WIO). The aim was to understand genetic population structure and connectivity of T. hemprichii in relation to hydrodynamic features. We genotyped 205 individual seagrass shoots from 11 sites across the WIO, spanning over a distance of similar to 2,700 km, with twelve microsatellite markers. Seagrass shoots were sampled in Kenya, Tanzania (mainland and Zanzibar), Mozambique, and Madagascar: 4-26 degrees S and 33-48 degrees E. We assessed clonality and visualized genetic diversity and genetic population differentiation. We used Bayesian clustering approaches (TESS) to trace spatial ancestry of populations and used directional migration rates (DivMigrate) to identify sources of gene flow. We identified four genetically differentiated groups: (a) samples from the Zanzibar channel; (b) Mozambique; (c) Madagascar; and (d) the east coast of Zanzibar and Kenya. Significant pairwise population genetic differentiation was found among many sites. Isolation by distance was detected for the estimated magnitude of divergence (D-EST), but the three predominant ocean current systems (i.e., East African Coastal Current, North East Madagascar Current, and the South Equatorial Current) also determine genetic connectivity and genetic structure. Directional migration rates indicate that Madagascar acts as an important source population. Overall, clonality was moderate to high with large differences among sampling sites, indicating relatively low, but spatially variable sexual reproduction rates. The strongest genetic break was identified for three sites in the Zanzibar channel. Although isolation by distance is present, this study suggests that the three regionally predominant ocean current systems (i.e., East African Coastal Current, North East Madagascar Current, and the South Equatorial Current) rather than distance determine genetic connectivity and structure of T. hemprichii in the WIO. If the goal is to maintain genetic connectivity of T. hemprichii within the WIO, conservation planning and implementation of marine protection should be considered at the regional scale-across national borders.

Place, publisher, year, edition, pages
John Wiley & Sons, 2019
Keywords
coastal conservation, connectivity, dispersal, gene flow, genetic structure, microsatellite, ocean current, population genetics, seagrass, Western Indian Ocean
National Category
Evolutionary Biology
Identifiers
urn:nbn:se:sh:diva-38704 (URN)10.1002/ece3.5420 (DOI)000477501600001 ()31462994 (PubMedID)2-s2.0-85071136834 (Scopus ID)
Funder
Swedish Research Council Formas, 2014-1288Sida - Swedish International Development Cooperation Agency
Available from: 2019-08-08 Created: 2019-08-08 Last updated: 2024-01-17Bibliographically approved
Larsson, J., Smolarz, K., Świeżak, J., Turower, M., Czerniawska, N. & Grahn, M. (2018). Multi biomarker analysis of pollution effect on resident populations of blue mussels from the Baltic Sea. Aquatic Toxicology, 198, 240-256
Open this publication in new window or tab >>Multi biomarker analysis of pollution effect on resident populations of blue mussels from the Baltic Sea
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2018 (English)In: Aquatic Toxicology, ISSN 0166-445X, E-ISSN 1879-1514, Vol. 198, p. 240-256Article in journal (Refereed) Published
Abstract [en]

Anthropogenic pollution including metals, petroleum, toxins, nutrients and many others is a growing problem in the marine environment. These are important factors altering the environment and by that the fate of many local populations of marine organisms. The aim of this study was to assess the impact of selected point pollution sources on resident populations of the blue mussel (Mytilus edulis trossulus) in the Baltic Sea using multiple biomarker approach. The study used a nested sampling scheme in which sites from reference (REF) habitats are geographically paired with selected sites from sewage treatment plants (STP) and harbors (HAR). The results showed that mussels from harbors had a higher frequency of histological abnormalities in the digestive gland compared to mussels from sewage effluent affected areas and reference sites. However these mussels together with mussels from STPs had higher lipid content, body mass index (BMI) and gonado-somatic index (GSI) compared to mussels from reference sites. A marked spatial variability was found with a stronger toxicity of ambient environment affecting resident mussel populations in the Gulf of Gdańsk area, while an opposite pattern was found in Tvärminne area. Yet the blue mussels sampled in the Gulf of Gdańsk were characterized by the highest GSI and BMI values compared to Askö and Tvärminne populations. No differences in analyzed biomarker response related to species identity, measured by a species-specific genetic marker, were found indicative of strong genetic introgression in the Baltic Proper.

Place, publisher, year, edition, pages
Elsevier, 2018
Keywords
Baltic Sea; blue mussel; pollution; physiology; histopathological lesions
National Category
Environmental Sciences
Research subject
Environmental Studies; Baltic and East European studies
Identifiers
urn:nbn:se:sh:diva-33701 (URN)10.1016/j.aquatox.2018.02.024 (DOI)000430630100025 ()29558709 (PubMedID)2-s2.0-85044104103 (Scopus ID)
Funder
The Foundation for Baltic and East European Studies, A063-10
Note

As manuscript in dissertation.

Available from: 2017-11-15 Created: 2017-11-15 Last updated: 2021-01-25Bibliographically approved
Larsson, J. (2017). Genetic Aspects of Environmental Disturbances in Marine Ecosystems: Studies of the Blue Mussel in the Baltic Sea. (Doctoral dissertation). Huddinge: Södertörns högskola
Open this publication in new window or tab >>Genetic Aspects of Environmental Disturbances in Marine Ecosystems: Studies of the Blue Mussel in the Baltic Sea
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Anthropogenic environmental changes can serve as drivers for evolutionary responses in wild populations. To predict the long-term impact of anthropogenic changes on populations, it is crucial to understand the genetic effects caused by these disturbances. The Baltic Sea is considered to be one of the world’s most contaminated seas, and the increase of anthropogenic chemical pollution is a major threat to its ecosystems. This thesis assesses the impact of harbors and sewage treatment plants on physiological traits and genetic structure of resident populations of blue mussels at replicated sites in the Baltic Sea. The initial evaluation of the overall genetic pattern in blue mussel populations in the Swedish West Coast, the Baltic Proper and the Bothnian Sea found genetic differentiation between the three water basins and a low genetic differentiation within each basin, especially within the Baltic Proper. Despite the low genetic differentiation among blue mussels within the Baltic Proper, a parallel genetic differentiation associated with sewage treatment plant effluents was found in this basin. This included genomic regions with a high degree of differentiation between reference sites and sites affected by sewage plants effluent. This genetic differentiation is suggested to be due to post-dispersal selection acting in each generation. In contrast, no parallel genetic differentiation was associated with harbors. We identified five genomic regions in blue mussels, showing strong signs of selection, shared among three out of four replicated reference sites and sites affected by sewage effluents in the Baltic Proper i.e. Askö, Tvärminne and Karlskrona. An initial characterization of these genomic regions revealed functions related to immune and endocrine responses, oxidative stress and shell formation. Our results indicate that selection caused by sewage effluents involves multiple loci. The same genomic regions are found across different locations in the Baltic Proper but there are also unique genomic regions at each location. No genotoxic or histopathological effects were found among blue mussels from sewage effluent-affected areas but a higher frequency of histological abnormalities in the digestive gland were observed in mussels from harbors.

Place, publisher, year, edition, pages
Huddinge: Södertörns högskola, 2017. p. 71
Series
Södertörn Doctoral Dissertations, ISSN 1652-7399 ; 148
Keywords
Blue mussel, Baltic Sea, anthropogenic disturbance, pollution, sewage effluents, harbors, genetics, genomics
National Category
Biological Sciences
Research subject
Environmental Studies; Baltic and East European studies
Identifiers
urn:nbn:se:sh:diva-33697 (URN)1328/42/2010 (Local ID)978-91-88663-23-8 (ISBN)978-91-88663-24-5 (ISBN)1328/42/2010 (Archive number)1328/42/2010 (OAI)
Public defence
2017-12-15, MA636, Alfred Nobels allé 7, Huddinge, 10:00 (English)
Opponent
Supervisors
Funder
The Foundation for Baltic and East European Studies, A063-2010
Available from: 2017-11-23 Created: 2017-11-14 Last updated: 2021-01-25Bibliographically approved
Larsson, J., Lind, E. E., Corell, H., Grahn, M., Smolarz, K. & Lönn, M. (2017). Regional genetic differentiation in the blue mussel from the Baltic Sea area. Estuarine, Coastal and Shelf Science, 98-109
Open this publication in new window or tab >>Regional genetic differentiation in the blue mussel from the Baltic Sea area
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2017 (English)In: Estuarine, Coastal and Shelf Science, ISSN 0272-7714, E-ISSN 1096-0015, p. 98-109Article in journal (Refereed) Published
Abstract [en]

Connectivity plays an important role in shaping the genetic structure and in evolution of local adaptation. In the marine environment barriers to gene flow are in most cases caused by gradients in environmental factors, ocean circulation and/or larval behavior. Despite the long pelagic larval stages, with high potential for dispersal many marine organisms have been shown to have a fine scale genetic structuring. In this study, by using a combination of high-resolution genetic markers, species hybridization data and biophysical modeling we can present a comprehensive picture of the evolutionary landscape for a keystone species in the Baltic Sea, the blue mussel. We identified distinct genetic differentiation between the West Coast, Baltic Proper and Bothnian Sea regions, with lower gene diversity in the Bothnian Sea. Oceanographic connectivity together with salinity and to some extent species identity provides explanations for the genetic differentiation between the West Coast and the Baltic Sea (Baltic Proper and Bothnian Sea). The genetic differentiation between the Baltic Proper and Bothnian Sea cannot be directly explained by oceanographic connectivity, species identity or salinity, while the lower connectivity to the Bothnian Sea may explain the lower gene diversity. © 2016.

Place, publisher, year, edition, pages
Academic Press, 2017
Keywords
AFLP, Baltic Sea, Barrier, Gene flow, Oceanographic connectivity, Population genetics
National Category
Environmental Sciences
Research subject
Environmental Studies; Baltic and East European studies
Identifiers
urn:nbn:se:sh:diva-30647 (URN)10.1016/j.ecss.2016.06.016 (DOI)000408787800012 ()2-s2.0-84977120681 (Scopus ID)1328/42/2010 (Local ID)1328/42/2010 (Archive number)1328/42/2010 (OAI)
Funder
The Foundation for Baltic and East European Studies, A063-2010
Available from: 2016-07-20 Created: 2016-07-19 Last updated: 2021-12-17Bibliographically approved
Projects
Health hazard in the Baltic sea: the effect of fluorinated substances on Baltic sea organisms [S2-20-0019_OSS]; Södertörn University; Publications
Banyoi, S.-M., Porseryd, T., Larsson, J., Grahn, M. & Dinnétz, P. (2022). The effects of exposure to environmentally relevant PFAS concentrations for aquatic organisms at different consumer trophic levels: Systematic review and meta-analyses. Environmental Pollution, 315, Article ID 120422.
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-3667-3667

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