AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Mediopyxis helysia | |
Date of the first record (?) | 2003 References (not structured): Kühn, S.F., Klein, G., Halliger, H., Hargraves, P., Medlin, L.K., 2006: A new diatom, Mediopyxis helysia gen. nov. and sp. nov. (Mediophyceae) from the North Sea and the Gulf of Maine as determined from morphological and phylogenetic characteristics. Nova Hedwigia, 130, 307-324 Meier S, Muijsers F, Beck M, Badewien TH, Hillebrand H. 2015. Dominance of the non-indigenous diatom Mediopyxis helysia in Wadden Sea phytoplankton can be linked to broad tolerance to different Si and N supplies. Journal of Sea Research. 95, 36-44. |
Recipient region (?) | Country: Germany LME: 22. North Sea References (not structured): Kühn, S.F., Klein, G., Halliger, H., Hargraves, P., Medlin, L.K., 2006: A new diatom, Mediopyxis helysia gen. nov. and sp. nov. (Mediophyceae) from the North Sea and the Gulf of Maine as determined from morphological and phylogenetic characteristics. Nova Hedwigia, 130, 307-324 Meier S, Muijsers F, Beck M, Badewien TH, Hillebrand H. 2015. Dominance of the non-indigenous diatom Mediopyxis helysia in Wadden Sea phytoplankton can be linked to broad tolerance to different Si and N supplies. Journal of Sea Research. 95, 36-44. Comments: Found near Helgoland, Sylt and Spiekeroog islands. |
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Source region (?) | Not entered |
Pathway / Vector (?) | Level of certainty: Possible Pathway: Vessels Vector: Ballast water References (not structured): Gollasch pers. comm. |
Habitat type (?) | Port vicinity Ports References (not structured): Schanz A, von Duerselen C-D (2020) Assessment of Non-indigenous Species (NIS) in the Port of Cuxhaven and JadeWeserPort. Scientific Report 2018. Bundesamt für Seeschifffahrt und Hydrographie (BSH) & BMVI Expertennetzwerk, 168 pp. |
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Wave exposure (?) | Not entered | |
Salinity range (?) | Not entered | |
Temperature range (?) | Not entered |
Zonation / Substratum (?) | Not entered | |
Reproductive duration (?) | Not entered | |
Reproductive seasonality (?) | Not entered | |
Migration pattern (?) | Not entered |
Population status (?) | Outbreak (Moderate level of certainty) References (not structured): Kühn, S.F., Klein, G., Halliger, H., Hargraves, P., Medlin, L.K., 2006: A new diatom, Mediopyxis helysia gen. nov. and sp. nov. (Mediophyceae) from the North Sea and the Gulf of Maine as determined from morphological and phylogenetic characteristics. Nova Hedwigia, 130, 307-324 Meier S, Muijsers F, Beck M, Badewien TH, Hillebrand H. 2015. Dominance of the non-indigenous diatom Mediopyxis helysia in Wadden Sea phytoplankton can be linked to broad tolerance to different Si and N supplies. Journal of Sea Research. 95, 36-44. Comments: Regionally dominating the Spring bloom. Bloom-forming aroudn Helgoland and Sylt (Reise & Lackschewitz 2023 Strangers at the German Shores, AWI) |
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Species status (?) | Non-indigenous species References (not structured): Kühn, S.F., Klein, G., Halliger, H., Hargraves, P., Medlin, L.K., 2006: A new diatom, Mediopyxis helysia gen. nov. and sp. nov. (Mediophyceae) from the North Sea and the Gulf of Maine as determined from morphological and phylogenetic characteristics. Nova Hedwigia, 130, 307-324 Meier S, Muijsers F, Beck M, Badewien TH, Hillebrand H. 2015. Dominance of the non-indigenous diatom Mediopyxis helysia in Wadden Sea phytoplankton can be linked to broad tolerance to different Si and N supplies. Journal of Sea Research. 95, 36-44. |
Ports | Port #1/2: Cuxhaven Date of the first record: 2018 Population status: Not entered References: Schanz A, von Duerselen C-D (2020) Assessment of Non-indigenous Species (NIS) in the Port of Cuxhaven and JadeWeserPort. Scientific Report 2018. Bundesamt für Seeschifffahrt und Hydrographie (BSH) & BMVI Expertennetzwerk, 168 pp. Port #2/2: Jade-Weser-Port Date of the first record: 2018 Population status: Not entered References: Schanz A, von Duerselen C-D (2020) Assessment of Non-indigenous Species (NIS) in the Port of Cuxhaven and JadeWeserPort. Scientific Report 2018. Bundesamt für Seeschifffahrt und Hydrographie (BSH) & BMVI Expertennetzwerk, 168 pp. |
Created by | Stephan Gollasch, 2016-01-15 |
Last update by | Stephan Gollasch, 2023-05-24 |