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  • EUROPEAN RESEARCH NETWORK ON AQUATIC INVASIVE SPECIES  (2)
  • Alfred Wegener Institute for Polar and Marine Research & German Society of Polar Research  (1)
  • Berichte zur Polar- und Meeresforschung = Reports on polar and marine research  (1)
  • Berlin : Springer  (1)
Document type
Keywords
Publisher
Language
Years
  • 1
    Book
    Book
    Faszination Meeresforschung : ein ökologisches Lesebuch (2017)
    Berlin : Springer
    Details Availability
    Keywords: Meereskunde ; Meeresbiologie ; Meeresökologie ; Aufsatzsammlung ; Meereskunde ; Meeresbiologie ; Meeresökologie
    Description / Table of Contents: Die Themenvielfalt reicht von Flora und Fauna des arktischen Meereises über Mikroplastikmüll im Meer bis hin zur Überfischung und die nachhaltige Nutzung des Meeres. Wichtige Werkzeuge der Mikrobiologen wie Forschungsschiffe, Unterwasserroboter, Gensonden und Datenbanken werden in verständlichen Artikeln beschrieben, Exkurse über die Geschichte und Struktur der meeresbiologischen Forschung in Deutschland runden den Titel ab. (2)
    Type of Medium: Book
    Pages: XXII, 573 Seiten , Illustrationen (überwiegend farbig) , 23.5 cm x 15.5 cm
    Edition: 2. Auflage
    ISBN: 3662497131 , 9783662497135
    URL: http://deposit.d-nb.de/cgi-bin/dokserv?id=a78e9ac141594f769eb30452ae02d967&prov=M&dok_var=1&dok_ext=htm
    URL: http://d-nb.info/1102390682/04
    URL: https://swbplus.bsz-bw.de/bsz860735125cov.jpg
    URL: https://www.springer.com/de/book/9783662497135
    DDC: 577.7
    RVK:
    RB 10405
    RVK:
    WI 9510
    Language: German
    Note: Literaturangaben , Enthält 55 Beiträge
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  • 2
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    Population development of the invasive crab Hemigrapsus sanguineus (De Haan, 1853) and its potential native competitor Carcinus maenas (Linnaeus, 1758) at Helgoland (North Sea) between 2009 and 2014 (2017)
    EUROPEAN RESEARCH NETWORK ON AQUATIC INVASIVE SPECIES
    In:  EPIC3Aquatic Invasions, EUROPEAN RESEARCH NETWORK ON AQUATIC INVASIVE SPECIES, 12, ISSN: 1818-5487
    Details
    Publication Date: 2017-01-12
    Description: The Asian shore crab Hemigrapsus sanguineus (De Haan, 1853) has recently established populations in the North Sea and now occurs within the native ranges of the green crab Carcinus maenas (Linnaeus, 1758). To determine potential competitive effects and to assess the progress of the invasion, species-specific population characteristics (numerical abundances, biomasses, and size distributions) of the two species around the island of Helgoland (German Bight, southern North Sea) were compared for surveys conducted in 2009 and 2014. Sampling sites were chosen based on accessibility and differed in their topography and wave exposure, which allowed testing for the influence of these factors on the establishment success of H. sanguineus. The numerical abundance and biomass of H. sanguineus increased markedly and approached those of C. maenas in 2014. At a sheltered site, H. sanguineus even outnumbered C. maenas, whereas the converse was observed at a site exposed to strong winds and waves. Although such contrasting abundance patterns between the native and the introduced shore crab may be the result of direct interference, the dominance of H. sanguineus at the sheltered site may also be explained by enhanced larval settling rates caused by odors of conspecifics. The results suggest that the invasion of H. sanguineus has not yet reached its equilibrium, and population abundances in the North Sea are expected to further increase in the future.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 3
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    Biologie der Polarmeere: Dreißig Jahre biologische Meeresforschung am Institut für Polarökologie (IPÖ) in Kiel (2013)
    Alfred Wegener Institute for Polar and Marine Research & German Society of Polar Research
    In:  EPIC3Polarforschung, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research & German Society of Polar Research, 83(1), pp. 17-33, ISSN: 00322490
    Details
    Publication Date: 2019-07-17
    Repository Name: EPIC Alfred Wegener Institut
    Type: "Polarforschung" , peerRev
    Format: application/pdf
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  • 4
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    Population development of the invasive crab Hemigrapsus sanguineus (De Haan, 1853) and its potential native competitor Carcinus maenas (Linnaeus, 1758) at Helgoland (North Sea) between 2009 and 2014 (2017)
    EUROPEAN RESEARCH NETWORK ON AQUATIC INVASIVE SPECIES
    In:  EPIC3Aquatic Invasions, EUROPEAN RESEARCH NETWORK ON AQUATIC INVASIVE SPECIES, 12(1), pp. 85-96, ISSN: 1818-5487
    Details
    Publication Date: 2017-04-07
    Description: The Asian shore crab Hemigrapsus sanguineus (De Haan, 1853) has recently established populations in the North Sea and now occurs within the native ranges of the green crab Carcinus maenas (Linnaeus, 1758). To determine potential competitive effects and to assess the progress of the invasion, species-specific population characteristics (numerical abundances, biomasses, and size distributions) of the two species around the island of Helgoland (German Bight, southern North Sea) were compared for surveys conducted in 2009 and 2014. Sampling sites were chosen based on accessibility and differed in their topography and wave exposure, which allowed testing for the influence of these factors on the establishment success of H. sanguineus. The numerical abundance and biomass of H. sanguineus increased markedly and approached those of C. maenas in 2014. At a sheltered site, H. sanguineus even outnumbered C. maenas, whereas the converse was observed at a site exposed to strong winds and waves. Although such contrasting abundance patterns between the native and the introduced shore crab may be the result of direct interference, the dominance of H. sanguineus at the sheltered site may also be explained by enhanced larval settling rates caused by odors of conspecifics. The results suggest that the invasion of H. sanguineus has not yet reached its equilibrium, and population abundances in the North Sea are expected to further increase in the future.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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    PAPER (OA)
  • 5
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    The amphipod Themisto gaudichaudii is poised to move poleward: which are the consequences for the pelagic ecosystem of the warming Southern Ocean? In: Polar Regions, Climate Change and Society, 28th International Polar Conference, Potsdam, 01 – 05 May 2022. (2022)
    Berichte zur Polar- und Meeresforschung = Reports on polar and marine research
    In:  EPIC3Bremerhaven, Berichte zur Polar- und Meeresforschung = Reports on polar and marine research, 158 p.
    Details
    Publication Date: 2022-10-03
    Description: The Southern Ocean, in particular the southwest Atlantic sector, is experiencing rapid environmental changes. A long-term trend of density changes of key pelagic species has been noted over the last decades: Antarctic krill populations are declining whilst salps are on the rise and shifting their distribution poleward. A similar poleward expansion is anticipated for a third key player, the hyperiid amphipod crustacean Themisto gaudichaudii, leading to an increasing overlap of the distributions of these three species. Due to major knowledge gaps in the ecology, and genetic connectivity of T. gaudichaudii, the likelihood of this shift and its consequences for the pelagic food web structure remain largely unexplored. In this context, Themisto’s genetic and trophic connectivity as well as thermal response were investigated with state-of-the-art molecular methods. Phylogeographic analyses showed genetic homogeneity between localities in the Southern Ocean and Atlantic waters combined with high degree of phenotypic plasticity enabling different lineages to thrive in regions further south. Diet analyses using DNA metabarcoding were applied to characterize regional variation in diet. These analyses showed a diet predominantly composed of krill, in particular in the Antarctic Peninsula region, showing that Themisto’s poleward range expansion can further impact the already declining krill stocks. It also unexpectedly revealed ctenophores to be an important prey, despite their reputation as “trophic dead-end”. Transcriptome analyses were used to study the thermal response of Themisto individuals from different geographic populations that were experimentally exposed to heat and cold treatments. The analysis of differentially expressed genes showed that genetic lineages differ in thermal tolerances. It also revealed a wide range of molecular mechanisms in Themisto amphipods to cope with thermal stress. These findings contribute to better predict the impact of climate-driven range shifts on the pelagic ecosystems in the Southern Ocean.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Book , peerRev
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