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  • 1
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    A new flow-through bioassay for testing low-emission antifouling coatings (2017)
    PANGAEA
    In:  Supplement to: Pansch, Christian; Jonsson, Per R; Berglin, Mattias; Pinori, Emiliano; Wrange, Anna-Lisa (2017): A new flow-through bioassay for testing low-emission antifouling coatings. Biofouling, 1-11, https://doi.org/10.1080/08927014.2017.1349897
    Details
    Publication Date: 2023-01-13
    Description: Current antifouling technologies are based on the continuous release of biocides into the water, and consequently discharge into the environment. Major efforts on more environmentally friendly coatings require efficient testing in laboratory assays, followed by field studies. Barnacles are important fouling organisms worldwide, largely increasing the hydrodynamic drag of ships and damaging coatings on underwater surfaces, and thus extensively used as a model in antifouling research, mostly in static, lab-based systems. Reliable flow-through test assays for the screening of biocide-containing antifouling paints, however, are rare. Herein, a flow-through bioassay was developed to screen for diverse low-release biocide paints, evaluating their effects on pre- and post-settlement traits in barnacles. The assay distinguishes between the effects from direct surface contact and bulk-water effects, crucial when developing low-emission antifouling coatings. In conclusion, this new flow-through bioassay adds a new tool for rapid lab-based first-stage screening of candidate compounds and novel antifouling formulations.
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Panel comparison observed in marinas in the north-eastern Baltic Sea (2020)
    PANGAEA
    Details
    Publication Date: 2023-12-04
    Description: In the present study, we collected data on biofouling in 17 marinas along the Baltic Sea coast during three consecutive boating seasons (May-October 2014, 2015 and 2016). In this context, we compared different monitoring strategies and developed a fouling index (FI) to characterise marinas according to the recorded biofouling abundance and type (defined according to the hardness and strength of attachment to the substrate). Lower FI values, i.e. softer and/or less abundant biofouling, were consistently observed in marinas in the north-eastern Baltic Sea. The decrease in FI from the south-western to the north-eastern Baltic Sea was partially explained by the concomitant decrease in salinity. Nevertheless, most of the observed changes in biofouling seemed to be determined by local factors and inter-annual variability, which emphasizes the necessity for systematic monitoring of biofouling by end-users and/or authorities for the effective implementation of non-toxic antifouling alternatives in marinas.
    Keywords: antifouling; Baltic Sea; Barnacle; benthic communities; biocide; Biofouling; coastal management; Event label; Fouling; Latitude of event; leisure boats; Longitude of event; Marina_Askö; Marina_Bullandö; Marina_Fiskebäck; Marina_Gävle; Marina_Grömitz; Marina_Halmstad; Marina_Helsingør; Marina_Helsinki; Marina_Kalmar; Marina_Karlskrona; Marina_Malmö; Marina_Nynäshamn; Marina_Simrishamn; Marina_Strömstad; Marina_Turku; Marina_Vaasa; Marina_Västervik; Monitoring; pollution; Replicates; Station label; Treatment; Year of observation
    Type: Dataset
    Format: text/tab-separated-values, 2418 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Biofouling abundance and type observed in marinas in the north-eastern Baltic Sea (2020)
    PANGAEA
    Details
    Publication Date: 2023-12-04
    Description: In the present study, we collected data on biofouling in 17 marinas along the Baltic Sea coast during three consecutive boating seasons (May-October 2014, 2015 and 2016). In this context, we compared different monitoring strategies and developed a fouling index (FI) to characterise marinas according to the recorded biofouling abundance and type (defined according to the hardness and strength of attachment to the substrate). Lower FI values, i.e. softer and/or less abundant biofouling, were consistently observed in marinas in the north-eastern Baltic Sea. The decrease in FI from the south-western to the north-eastern Baltic Sea was partially explained by the concomitant decrease in salinity. Nevertheless, most of the observed changes in biofouling seemed to be determined by local factors and inter-annual variability, which emphasizes the necessity for systematic monitoring of biofouling by end-users and/or authorities for the effective implementation of non-toxic antifouling alternatives in marinas.
    Keywords: antifouling; Area/locality; Baltic Sea; benthic communities; biocide; Biofouling; coastal management; Event label; Fouling; Index; Latitude of event; leisure boats; Longitude of event; Marina_Askö; Marina_Bullandö; Marina_Fiskebäck; Marina_Gävle; Marina_Grömitz; Marina_Halmstad; Marina_Helsingør; Marina_Helsinki; Marina_Kalmar; Marina_Karlskrona; Marina_Malmö; Marina_Nynäshamn; Marina_Simrishamn; Marina_Strömstad; Marina_Turku; Marina_Vaasa; Marina_Västervik; Monitoring; Number; pollution; Replicates; Salinity; Station label; Temperature, water; Treatment; Volume; Year of observation
    Type: Dataset
    Format: text/tab-separated-values, 2652 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Feeding, growth and grazing rates of the oligotrich ciliate Strombidium sulcatum determined experimentally (2014)
    PANGAEA
    Details
    Publication Date: 2024-03-11
    Keywords: Abundance per volume; Carbon per cell; Cell biovolume; Ciliates, cell biovolume; Ciliates, equivalent spherical diameter; Clearance rate per individual; Equivalent spherical diameter; Event label; EXP; Experiment; Grazing rate per individual; Gross growth efficiency; S_sulcatum_FEEDEXP_2; Taxon/taxa; Treatment: temperature; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 219 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Feeding, growth and grazing rates of marine planktonic oligotrichous ciliates determined experimentally (2014)
    PANGAEA
    Details
    Publication Date: 2024-03-11
    Keywords: Abundance per volume; Carbon per cell; Cell biovolume; Ciliates, cell biovolume; Clearance rate per individual; Equivalent spherical diameter; Event label; EXP; Experiment; FEEDEXP_CILIATES_1986; Grazing rate per individual; Gross growth efficiency; Kosterfjord; Latitude of event; Longitude of event; Taxon/taxa; Treatment: light:dark cycle; Treatment: temperature; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 817 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
    Electronic Resource
    Electronic Resource
    Redescription of Strombidium oculatum Gruber 1884 (Ciliophora, Oligotrichia) (2002)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 49 (2002), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: . The marine, tide pool-dwelling ciliate Stombidium oculatum was redescribed using live, stained, SEM, and TEM material prepared from samples collected from pools on the Isle of Man (Irish Sea) and Brittany (France). Also, we reviewed the older German and French works that reported on ciliates collected in the Mediterranean and Brittany, respectively. The Brittany and Isle of Man populations of the ciliate were considered identical. Some morphological and behavioural differences exist between the Brittany-Isle of Man populations and the Mediterranean populations, but they were insufficient to distinguish different taxa. Thus, taxa from all three locations were considered to be conspecific. Key features used to describe the ciliate were+morphology and ultrastructure of the free-swimming ciliate; cyst morphology; presence of mixotrophic-chloroplasts; presence of an eye spot composed of stigma obtained from chlorophyte prey; division, morphogenesis, and nuclear structure; live observations and behaviour, including the encystment-excystment cycle. Based on morphological and behavioural characteristics the taxon was distinguished from other similar species, and a neotype has been designated as no type material exists.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.2002.tb00379.x
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    Paper (German National Licenses)
    Fulltext
  • 7
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    A new flow-through bioassay for testing low-emission antifouling coatings (2017)
    Taylor & Francis
    In:  Biofouling, 33 (8). pp. 613-623.
    Details
    Publication Date: 2020-02-06
    Description: Current antifouling (AF) technologies are based on the continuous release of biocides into the water, and consequently discharge into the environment. Major efforts to develop more environmentally friendly coatings require efficient testing in laboratory assays, followed by field studies. Barnacles are important fouling organisms worldwide, increasing hydrodynamic drag on ships and damaging coatings on underwater surfaces, and thus are extensively used as models in AF research, mostly in static, laboratory-based systems. Reliable flow-through test assays for the screening of biocide-containing AF paints, however, are rare. Herein, a flow-through bioassay was developed to screen for diverse low-release biocide paints, and to evaluate their effects on pre- and post-settlement traits in barnacles. The assay distinguishes between the effects from direct surface contact and bulk-water effects, which are crucial when developing low-emission AF coatings. This flow-through bioassay adds a new tool for rapid laboratory-based first-stage screening of candidate compounds and novel AF formulations.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    DOI: 10.1080/08927014.2017.1349897
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 8
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    How to select networks of marine protected areas for multiple species with different dispersal strategies (2015)
    Wiley
    In:  Diversity and Distributions, 22 (2). pp. 161-173.
    Details
    Publication Date: 2016-02-26
    Description: Aim: To develop and test theory based on connectivity to identify optimal networks of marine protected areas (MPAs) that protect multiple species with a range of dispersal strategies. Location: The eastern North Sea in the Atlantic Ocean. Methods: Theory of finding optimal MPA network is based on eigenvalue perturbation theory applied to population connectivity. Previous theory is here extended to the persistence of multiple species by solving a maximization problem with constraints, which identifies an optimal consensus network of MPAs. The theory is applied to two test cases within a 120,000 km2 area in the North Sea where connectivity was estimated with a biophysical model. In a realistic case, the theory is applied to the protection of rocky-reef habitats, where the biophysical model is parameterized with realistic dispersal traits for key species. Theoretical predictions of optimal networks were validated with a simple metapopulation model. Persistence of optimal consensus MPA networks is compared to randomly selected networks as well as to the existing MPA network. Results: Despite few overlapping MPA sites for the optimal networks based on single dispersal strategies, the consensus network for multiple dispersal strategies performed well for 3 of 4 contrasting strategies even without user-defined constraints. In the test with five realistic dispersal strategies, representing a community on threatened rocky reefs, the consensus network performed equally well compared to solutions for single species. Different dispersal strategies were also protected jointly across the MPA network (93% of sites), in contrast to simulations of the existing MPA network (2% of sites). Consensus networks based on connectivity were significantly more efficient compared to existing MPAs. Main conclusions: Our findings suggest that the new theoretic framework can identify a consensus MPA network that protects a whole community containing species with multiple dispersal strategies.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1111/ddi.12394
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 9
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    Monitoring biofouling as a management tool for reducing toxic antifouling practices in the Baltic Sea (2020)
    Elsevier
    Details
    Publication Date: 2023-02-08
    Description: Over two million leisure boats use the coastal areas of the Baltic Sea for recreational purposes. The majority of these boats are painted with toxic antifouling paints that release biocides into the coastal ecosystems and negatively impact non-targeted species. Regulations concerning the use of antifouling paints differ dramatically between countries bordering the Baltic Sea and most of them lack the support of biological data. In the present study, we collected data on biofouling in 17 marinas along the Baltic Sea coast during three consecutive boating seasons (May–October 2014, 2015 and 2016). In this context, we compared different monitoring strategies and developed a fouling index (FI) to characterise marinas according to the recorded biofouling abundance and type (defined according to the hardness and strength of attachment to the substrate). Lower FI values, i.e. softer and/or less abundant biofouling, were consistently observed in marinas in the northern Baltic Sea. The decrease in FI from the south-western to the northern Baltic Sea was partially explained by the concomitant decrease in salinity. Nevertheless, most of the observed changes in biofouling seemed to be determined by local factors and inter-annual variability, which emphasizes the necessity for systematic monitoring of biofouling by end-users and/or authorities for the effective implementation of non-toxic antifouling alternatives in marinas. Based on the obtained results, we discuss how monitoring programs and other related measures can be used to support adaptive management strategies towards more sustainable antifouling practices in the Baltic Sea.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 10
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    Cleaning up seas using blue growth initiatives: Mussel farming for eutrophication control in the Baltic Sea (2020)
    Elsevier
    Details
    Publication Date: 2023-02-08
    Description: Eutrophication is a serious threat to aquatic ecosystems globally with pronounced negative effects in the Baltic and other semi-enclosed estuaries and regional seas, where algal growth associated with excess nutrients causes widespread oxygen free “dead zones” and other threats to sustainability. Decades of policy initiatives to reduce external (land-based and atmospheric) nutrient loads have so far failed to control Baltic Sea eutrophication, which is compounded by significant internal release of legacy phosphorus (P) and biological nitrogen (N) fixation. Farming and harvesting of the native mussel species (Mytilus edulis/trossulus) is a promising internal measure for eutrophication control in the brackish Baltic Sea. Mussels from the more saline outer Baltic had higher N and P content than those from either the inner or central Baltic. Despite their relatively low nutrient content, harvesting farmed mussels from the central Baltic can be a cost-effective complement to land-based measures needed to reach eutrophication status targets and is an important contributor to circularity. Cost effectiveness of nutrient removal is more dependent on farm type than mussel nutrient content, suggesting the need for additional development of farm technology. Furthermore, current regulations are not sufficiently conducive to implementation of internal measures, and may constitute a bottleneck for reaching eutrophication status targets in the Baltic Sea and elsewhere.
    Type: Article , PeerReviewed
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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