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  • SPRINGER  (3)
  • EUROPEAN RESEARCH NETWORK ON AQUATIC INVASIVE SPECIES  (2)
  • Oxford Univ. Press  (2)
  • The Crustacean Society  (2)
  • Berlin, Heidelberg : Springer
  • 1
    Online Resource
    Online Resource
    Faszination Meeresforschung : Ein ökologisches Lesebuch (2017)
    Berlin, Heidelberg : Springer
    Details Availability
    Keywords: Life sciences ; Aquatic ecology ; Nature ; Environment ; Marine sciences ; Freshwater ; Life Sciences ; Oceanography. ; Ecology . ; Life sciences ; Aquatic ecology ; Nature ; Environment ; Marine sciences ; Freshwater ; Meereskunde ; Meeresbiologie ; Meeresökologie ; Aufsatzsammlung ; Meereskunde ; Meeresbiologie ; Meeresökologie
    Description / Table of Contents: Prolog -- 1 Die physikalische Umwelt „Meer“ -- 2 Der marine Kohlenstoffkreislauf -- 3 Das Pelagial -- 4 Eine virtuelle Reise durch den Atlantik – Energieflüsse, Nahrungswege und Anpassungspfade -- 5 Das Leben im Eispalast: Flora und Fauna des arktischen Meereises -- 6. Wechselwirkungen zwischen Meeresboden und Ozean: Die pelago-benthische Kopplung im Südpolarmeer -- 7 Auftriebsgebiete und El Niño -- 8 Das Bakterioplankton – Riese und Regulator im marinen Stoffumsatz -- 9 Das Phytoplankton im Überblick -- 10 Die wichtigsten Gruppen des Zooplanktons -- 11 Krill und Salpen prägen das antarktische Ökosystem -- 12 Mikroplastikmüll im Meer -- 13 Tintenfische – die Spitzenathleten der Weltmeere,- 14 Meeresschildkröten haben es schwer -- 15 Fischbrut im Nahrungsnetz -- 16 Der arktische Polardorsch und der Antarktische Silberfisch: Erfolgsgeschichten im Eismeer -- 17 Seevögel und ihre Ernährungsweisen als Spiegel der Meeresumwelt -- 18. Schweinswale in der Ostsee – Forschung für den Artenschutz -- 19 Leben am Meeresboden -- 20 Mikroorganismen des Tiefseebodens: Vielfalt, Verteilung, Funktion -- 21 Stabilität, Störungen oder Zufall: Was steuert marine Biodiversität? -- 22 Dunkle Energie: Symbiosen zwischen Tieren und chemosynthetischen Bakterien -- 23 Meeresküsten – ein Überblick -- 24 Leben auf festem Grund – Hartbodengemeinschaften -- 25 Muschelbänke, Seegraswiesen und Watten an Sand- und Schlickküsten -- 26 Mikroalgen in der Grenzschicht zwischen Sediment und Wasser -- 27 Wälder unter Wasser – Großalgengemeinschaften -- 28 Mangroven – Wälder zwischen Land und Meer -- 29 Ökosystem Korallenriff – Schatzkammer der Meere -- 30 Die Ostsee -- 31. Belastungen unserer Meere durch den Menschen -- 32 Wie wirkt der Klimawandel auf das Leben im Meer? -- 33 Ozeanversauerung: Gewinner und Verlierer im Plankton -- 34 CO2-Wirkung auf Meerestiere -- 35 Helgoland, Krill und Klimawandel -- 36 Klimaflüchtlinge, Migranten und Invasoren -- 37 Die Weltfischerei – mit weniger Aufwand fängt man mehr -- 38 Nachhaltiges Fischereimanagement – kann es das geben? -- 39 Zum Beispiel Kabeljau und Hering: Fischerei, Überfischung und Fischereimanagement im Nordatlantik -- 40 Der tote Leviathan – ein Streifzug durch die Geschichte des antarktischen Walfangs -- 41 Sushi und die Algenfarmen -- 42 Kultur von Meerestieren– mehr Eiweißnahrung aus dem Meer -- 43 Über Forschungsschiffe -- 44 Der Hausgarten in der Framstraße: Von der Momentaufnahme zur Langzeituntersuchung -- 45 Neue Methoden der Artbestimmung -- 46 Zeitmaschine DNA – die verschlüsselte Evolutionsgeschichte im Erbgut -- 47 Computermodelle als Werkzeuge der Meeresökologen -- 48 Meeresbiologische Forschungsinstitute in Deutschland -- Epilog.
    Type of Medium: Online Resource
    Pages: Online-Ressource (XXII, 573 S. 220 Abb. in Farbe, online resource)
    Edition: 2. Aufl. 2017
    ISBN: 9783662497142
    Series Statement: SpringerLink
    URL: https://doi.org/10.1007/978-3-662-49714-2
    URL: http://dx.doi.org/10.1007/978-3-662-49714-2
    URL: https://swbplus.bsz-bw.de/bsz1655405721cov.jpg
    URL: https://www.springer.com/de/book/9783662497135
    URL: https://external.dandelon.com/download/attachments/dandelon/ids/CH0022B3F9DA44A0EBDFBC12581A1004A8295.pdf
    DOI: 10.1007/978-3-662-49714-2
    RVK:
    WI 4410
    RVK:
    AR 22170
    Language: German
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  • 2
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    Population dynamics and life strategies of Rhincalanus nasutus (Copepoda) at the onset of the spring bloom in the Gulf of Aqaba (Red Sea) (2008)
    Oxford Univ. Press
    In:  Journal of Plankton Research, 30 . pp. 655-672.
    Details
    Publication Date: 2018-06-05
    Description: Abundance, distribution, population structure, lipid content, lipid composition and reproductive and feeding activity of Rhincalanus nasutus were studied in the Gulf of Aqaba and in the northern Red Sea during RV “Meteor”-cruise M 44-2 in February/March 1999. Rhincalanus nasutus occurred in higher numbers in the Gulf of Aqaba (585 ind m−2) than in the northern Red Sea (254 ind m−2). Young developmental stages (nauplii, copepodite stages CI and CII) were absent. In the southern Gulf of Aqaba, the bulk of the population developed from stage CV to adult in the course of the 3-week study period. In contrast, immature CV stages dominated at the adjacent stations in the northern Gulf of Aqaba and in the northern Red Sea. Development was associated with the seasonal vertical migration from wintering mid-water layers and initiation of feeding starting as early as beginning of March in the southern Gulf of Aqaba. No upward migration was observed in the northern parts of the Gulf and in the northern Red Sea, where more than 90% of the females remained immature during our study. Lipids were dominated by wax esters in females and CV. The fatty acid and fatty alcohol compositions of females were very similar throughout the study region and period. Major fatty acids were 18:1(n−9), 16:1(n−7), 16:2(n−4) and 20:5(n−3). Our results support the previous reports of a seasonal dormancy of R. nasutus in the Gulf of Aqaba and suggest that the timing of vertical migration, feeding and maturation is closely coupled to the development of the spring bloom in oligotrophic subtropical waters.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1093/plankt/fbn029
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 3
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    Microcopepod community structure in the Gulf of Aqaba and the northern Red Sea, with special reference to Oncaeidae (2008)
    Oxford Univ. Press
    In:  Journal of Plankton Research, 30 . pp. 529-550.
    Details
    Publication Date: 2018-06-05
    Description: The abundance and vertical distribution of microcopepods sampled by nets with 55 μm mesh size was compared for two neighbouring but hydrographically different areas, the Gulf of Aqaba and the northernmost Red Sea, during spring 1999. The vertical structure of the total microcopepod communities differed considerably between the two regimes: In the stratified waters of the Red Sea, calanoids outnumbered oncaeids as well as oithonids at 0–100 m, whereas oncaeids dominated in all meso- and bathypelagic layers below 100 m deep. In the unusually deep vertically mixed waters of the Gulf of Aqaba, calanoids outnumbered each of the non-calanoid taxa as deep as 250 or 350 m, whereas the oncaeid dominated deep water community was restricted to depth ranges below 400 m. Dominant non-calanoid species in both areas were Oncaea bispinosa, Paroithona pacifica, Oithona simplex, Spinoncaea ivlevi, O. tregoubovi and O. cristata. O. scottodicarloi occurred in exceptionally high numbers in the northern Gulf. Pronounced differences between the two areas were found in the vertical distribution of poecilostomatoid species. By comparing the present results with published data from the central and southern Red Sea and other tropical and warm-temperate oceanic areas, intra- and inter-oceanic differences in the structure of microcopepod communities in oligotrophic areas are discussed. The high abundance and vertically extended range of calanoid copepods during spring appears to be a specific feature of the Gulf of Aqaba, indicating an unusual vertical succession in the trophodynamic structure of the copepod fauna in this area.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1093/plankt/fbn018
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 4
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    Invasive versus native brachyuran crabs in a European rocky intertidal: respiratory performance and energy expenditures (2018)
    SPRINGER
    In:  EPIC3Marine Biology, SPRINGER, 165(54), pp. 1-14, ISSN: 0025-3162
    Details
    Publication Date: 2018-02-27
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 5
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    Habitat modelling of crabeater seals (Lobodon carcinophaga) in the Weddell Sea using the multivariate approach Maxent (2017)
    SPRINGER
    In:  EPIC3Polar Biology, SPRINGER, 40(5), pp. 961-976, ISSN: 0722-4060
    Details
    Publication Date: 2017-07-11
    Description: The crabeater seal (Lobodon carcinophaga) is the most abundant Antarctic seal and inhabits the circumpolar pack ice zone of the Southern Ocean. Until now, information on important environmental factors affecting its distribution as well as on foraging behaviour is limited. In austral summer 1998, 12 crabeater seals of both sexes and different age classes were equipped with satellite-linked dive recorders at Drescher Inlet (72.85°S, 19.26°E), eastern Weddell Sea. To identify suitable habitat conditions within the Weddell Sea, a maximum entropy (Maxent) modelling approach was implemented. The model revealed that the eastern and southern Weddell Sea is especially suitable for crabeater seals. Distance to the continental shelf break and sea ice concentration were the two most important parameters in modelling species distribution throughout the study period. Model predictions demonstrated that crabeater seals showed a dynamic response to their seasonally changing environment emphasized by the favoured sea ice conditions. Crabeater seals utilized ice-free waters substantially, which is potentially explained by the comparatively low sea ice cover of the Weddell Sea during summer 1998. Diving behaviour was characterized by short (〉90 % = 0–4 min) and shallow (〉90 % = 0–51 m) dives. This pattern reflects the typical summer and autumn foraging behaviour of crabeater seals. Both the distribution and foraging behaviour corresponded well with the life history of the Antarctic krill (Euphausia superba), the preferred prey of crabeater seals. In general, predicted suitable habitat conditions were congruent with probable habitats of krill, which emphasizes the strong dependence on their primary prey.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 6
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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
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  • 7
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    Respiration physiology and ecosystem impact of European and Asian shore crabs in a temperate European habitat (2017)
    The Crustacean Society
    In:  EPIC3The Crustaxean Society Mid-Year Meeting, Barcelona, Spain, 2017-06-19-2017-06-22Barcelona, Spain, The Crustacean Society
    Details
    Publication Date: 2017-07-24
    Description: Hemigrapsus sanguineus, the Asian shore crab, is a successful invader at the U.S. east coast and the European Atlantic coast, where populations are established from France to Germany. Numerous studies on behavioral aspects and population development are available, however, physiology and energetic impact of the invader on its ecosystem are virtually unknown. We measured respiration rates of H. sanguineus and its native equivalent, the European shore crab C. maenas, from the island of Helgoland, North Sea, Germany. Measurements were conducted at 5, 10, 15 and 20 °C, using a flow-through system. Specific respiration rates were overall similar for both species. Rates increased with temperature and decreased with the mass of the crab. Mass-standardized data revealed that small H. sanguineus showed significantly higher respiration rates at higher temperatures than C. maenas. This difference vanished with increasing crab size. Statistical modelling was used to develop species-specific equations to calculate a crab´s respiration rate in relation to its mass and the ambient temperature. Taking the overall biomass and temperature into account, the population respiration, carbon uptake and the metabolic energy demand, a measure for the population´s ecosystem impact, was calculated. In the Helgoland intertidal, total biomass of H. sanguineus is now about 59% of that of the C. maenas population but the cumulative metabolic energy demand represents already 78% of the value for C. maenas. With still increasing abundances of H. sanguineus and globally rising temperatures, the ecosystem impact of this invader will increase in the future.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 8
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    Physiological response of adult Antarctic krill, Euphausia superba, to long-term starvation (2015)
    SPRINGER
    In:  EPIC3Polar Biology, SPRINGER, ISSN: 0722-4060
    Details
    Publication Date: 2015-03-05
    Description: Adult Euphausia superba survive winter without or with little feeding. It is not exactly known whether the scarcity of food or an internal clock, set by the natural Antarctic light regime, are responsible for non-feeding. Our research questions were therefore the following: (1) How will physiological and biochemical conditions of krill change during long-term starvation at constant light regime? (2) If and how do enzyme activities change during such starvation? (3) What is the influence of food availability versus that of light regime? To answer these questions, adult krill were starved under laboratory conditions for 12 weeks with constant light regime (12:12; dark/light) and the impact on physiological functions was studied. Initial experimental condition of krill resembled the condition of late spring krill in the field with fully active metabolism and low lipid reserves. Metabolic activity and activities of enzymes catabolising lipids decreased after the onset of starvation and remained low throughout, whereas lipid reserves declined and lipid composition changed. Mass and size of krill decreased while the inter-moult period increased. Depletion of storage- and structural metabolites occurred in the order of depot lipids and glycogen reserves after onset of starvation until proteins were almost exclusively used after 6–7 weeks of starvation. Results confirmed various proposed overwintering mechanisms such as metabolic slowdown, slow growth or shrinkage and use of lipid reserves. However, these changes were set in motion by food shortage only, i.e.without the trigger of a changing light regime.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 9
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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
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  • 10
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    Diet, energy storage and breeding strategy of two ecological equivalents, an invasive and a native shore crab (2017)
    The Crustacean Society
    In:  EPIC3The Crustaxean Society Mid-Year Meeting, Barcelona, Spain, 2017-06-19-2017-06-22Barcelona, Spain, The Crustacean Society
    Details
    Publication Date: 2017-07-24
    Description: The physiology of the successful intertidal invader, the Asian shore crab Hemigrapsus sanguineus, is essentially unknown. It is quite abundant from France to German coasts but information on food preferences, energy storage and breeding strategy are still lacking. Hemigrapsus sanguineus and its native ecological equivalent, the European green crab Carcinus maenas, were collected in April, June, August and October 2016 in the intertidal area of the island of Helgoland, North Sea, Germany. Midgut glands were dissected and in case of ovigerous females, additionally the egg masses were sampled. Lipids were extracted and the fatty acid composition was determined by gas chromatography. The lipid contents of H. sanguineus midgut glands was higher and more variable over the seasons than those of C. maenas (20 - 60% vs. ~20%, respectively). Trophic marker fatty acids revealed a more herbivorous diet of H. sanguineus, whereas C. maenas profiles suggested a wide range from more herbivorous to more carnivorous diets. The fatty acid compositions of eggs and midgut glands formed two separate clusters in H. sanguineus but both tissue types were similar in C. maenas. Hemigrapsus sanguineus stored much more energy than C. maenas and may cope better with longer periods of starvation. The invaders were able to build up and maintain these reserves by utilizing mostly low quality algal food. Further, H. sanguineus is an income breeder, utilizing recently eaten food for reproduction, whereas C. maenas is a capital breeder. The physiological properties suggest that the invader is competitively superior over the native crab.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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