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  • INTER-RESEARCH  (2)
  • Berlin, Heidelberg : Springer  (1)
  • German Society for Marine Research  (1)
  • 2015-2019  (4)
  • 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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    Seasonal lipid dynamics of the shrimps Crangon crangon and Pandalus montagui in the German Bight (North Sea) (2019)
    INTER-RESEARCH
    In:  EPIC3Marine Ecology-Progress Series, INTER-RESEARCH, 625, pp. 41-52, ISSN: 0171-8630
    Details
    Publication Date: 2019-10-09
    Description: Environmental fluctuations can impose energetic constraints on organisms in terms of food shortage or compensation for metabolic stress. To better understand the biochemical strategies that support adaptive physiological processes in variable environments, we studied the lipid dynamics of the brown shrimp Crangon crangon and the pink shrimp Pandalus montagui by analysing their midgut glands during an annual cycle. Both species have an overlapping distribu- tion range in the southern North Sea, but differ in their habitat preferences, reproductive strate- gies, and life-history traits. C. crangon showed minor total lipid accumulation in their midgut glands, ranging between 14 and 17% of dry mass (DM), dominated by phospholipids. In contrast, P. montagui stored significantly larger amounts of total lipid (47−70% DM, mainly triacylglycer- ols) and showed a distinct seasonal cycle in lipid accumulation with a maximum in summer. Fatty acid trophic markers indicated a wide food spectrum for both species, with higher preferences of P. montagui for microalgae. In C. crangon, feeding preferences were less distinct due the low total lipid levels in the midgut gland. PCA based on fatty acid compositions of both species suggested that C. crangon has a broader dietary spectrum than P. montagui. C. crangon seems to have the capacity to use sufficient energy directly from ingested food to fuel all metabolic requirements, including multiple spawnings, without building up large lipid reserves in the midgut gland. P. montagui, in contrast, relies more on the energy storage function of the midgut gland to over- come food scarcity and to allocate lipids for reproduction.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev , info:eu-repo/semantics/article
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  • 3
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    Crab Weight Watchers: Energy storage and food preferences of ovigerous Hemigrapsus sanguineus and Carcinus maenas (2016)
    German Society for Marine Research
    In:  EPIC3YOUMARES 7, Hamburg, Germany, 2016-09-11-2016-09-13Hamburg, Germany, German Society for Marine Research
    Details
    Publication Date: 2016-11-21
    Description: The intertidal Asian shore crab H. sanguineus was initially found on the French coast in the late 1990’s. It rapidly extended its range further north and is now well established in the German Wadden Sea. Recently, it was also found in western Sweden. In its intertidal habitat, it co-occurs with the European green crab C. maenas. The ecophysiology of H. sanguineus is virtually unknown. In this study, the physiological capacities of both species and their potential for intra-guild competition were investigated. We specifically compared the energy deposition and dietary preferences of ovigerous females of both species. Females of both species carrying immature or mature eggs were collected in April, June, August and October 2015 in an intertidal site on the Island of Helgoland, North Sea, Germany. Total lipid levels of midgut glands and eggs were acquired via extraction. Subsequently, fatty acid compositions were determined through gas chromatography. Total lipid levels of H. sanguineus midgut glands were clearly higher than those of C. maenas (40% vs. 10% dry mass, DM). Immature eggs of both species were quite lipid-rich with 30% and 25%DM, respectively. In mature eggs, lipid levels decreased to ~15%DM each. A Principal Component Analysis of the fatty acid compositions of midgut glands and eggs revealed separate clusters for both species. Lipids of C. maenas were characterized more by membrane fatty acids. Fatty acids of C. maenas midgut glands and eggs clustered together. They were largely dominated by carnivory biomarkers. Contrastingly, fatty acids of midgut glands and all eggs of H. sanguineus formed separate clusters and trophic markers indicated a more herbivorous diet. Higher lipid levels and thus more pronounced energy deposition in H. sanguineus midgut glands indicate higher starvation tolerance for females, a potential competitive advantage over C. maenas. Direct food competition, however, seems negligible, as H. sanguineus prefers a more herbivorous diet than C. maenas. Deviating fatty acid compositions among H. sanguineus midgut glands and eggs suggests that this species may represent an income breeder, utilizing energy from both the midgut gland and dietary input. In contrast, most brachyuran crabs are capital breeders, relying exclusively on internal reserves.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Conference , notRev
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  • 4
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    Seasonal lipid storage and dietary preferences of native European versus invasive Asian shore crabs (2018)
    INTER-RESEARCH
    In:  EPIC3Marine Ecology-Progress Series, INTER-RESEARCH, 602, pp. 169-181, ISSN: 0171-8630
    Details
    Publication Date: 2018-08-24
    Description: The invasive Asian shore crab Hemigrapsus sanguineus and the native European green crab Carcinus maenas share intertidal habitats along European North Atlantic shores and may compete for food. We evaluated the energy-storing capacities of the 2 species and determined their dietary preferences by means of lipid analysis and fatty acid trophic marker indices. Specimens of both sexes and various sizes were sampled in the rocky intertidal of the island of Helgoland (North Sea) in April, June, August, and October 2015. Total lipids of the midgut glands were significantly higher in H. sanguineus than in C. maenas and followed a distinct seasonal cycle in both sexes (ca. 20−50% of dry mass, DM). The lower lipid contents of C. maenas (ca. 20% of DM) remained at a similar level throughout the seasons. The seasonal differences in the females of H. sanguineus may be due to higher reproductive output and, consequently, lipid turnover, but remain unexplained in males. Trophic indices for Bacillariophyceae, Chlorophyta, and especially Phaeophyceae were higher in H. sanguineus than in C. maenas, suggesting a higher degree of herbivory of the invader. In contrast, the Rhodophyta index was higher in C. maenas. Thus, competition for food between the 2 species will probably be low in habitats rich in macroalgae. The ability of H. sanguineus to utilize mainly energy-poor algae but accumulate high-energy reserves may be an advantage for successfully establishing persistent populations in new habitats.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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