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  • LTER_Benthos; Macrobenthic long-term series in the German Bight  (2)
  • Bivalvia indeterminata; Caprellidae sp.; Cerastoderma sp.; Comment; Crangon crangon; Crassostrea gigas; Crepidula fornicata; Cypris, larvae; DATE/TIME; DEPTH, sediment/rock; Foraminifera; Gammarus sp.; Gastropoda indeterminata; Gear; Habitat; Harpacticoida, copepodites; Identification; Lanice sp.; Latitude of event; Longitude of event; Long-term time series Sylt; LTER_Benthos; Macrobenthic long-term series in the German Bight; MULT; Multiple investigations; Mya sp.; Mytilus edulis, shell; Nematoda; Nereididae; Ostracoda; Polychaeta, larvae; Polychaeta indeterminata; Size fraction; Sylt_Blidselbucht; Sylter Wattenmeer  (1)
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  • 1
    facet.materialart.
    Unbekannt
    Data to investigate the role of Pomatoschistus microps in intertidal food webs, sampled off the island of Sylt (2014)
    PANGAEA
    In:  Supplement to: Pockberger, Moritz; Kellnreitner, Florian; Ahnelt, Harald; Asmus, Ragnhild; Asmus, Harald (2014): An abundant small sized fish as keystone species? The effect of Pomatoschistus microps on food webs and its trophic role in two intertidal benthic communities: A modeling approach. Journal of Sea Research, 86, 86-96, https://doi.org/10.1016/j.seares.2013.11.008
    Details
    Publikationsdatum: 2024-01-25
    Beschreibung: Ecological network analysis (ENA) was used to study the effects of Pomatoschistus microps on energy transport through the food web, its impact on other compartments and its possible role as a keystone species in the trophic webs of an Arenicola tidal flat ecosystem and a sparse Zostera noltii bed ecosystem. Three ENA models were constructed: (a) model 1 contains data of the original food web from prior research in the investigated area by Baird et al. (2007), (b) an updated model 2 which included biomass and diet data of P. microps from recent sampling, and (c) model 3 simulating a food web without P. microps. A comparison of energy transport between the different models revealed that more energy is transported from lower trophic levels up the food chain, in the presence of P. microps (models 1 and 2) than in its absence (model 3). Calculations of the keystone index (KSi) revealed the high overall impact (measured as eps_i) of this fish species on food webs. In model 1, P. microps was assigned a low KSi in the Arenicola flat and in the sparse Z. noltii bed. Calculations in model 2 ranked P. microps first for keystoneness and eps_i in both communities, the Arenicola flat and the sparse Z. noltii bed. Taken together, our results give insight into the role of P. microps when considering a whole food web and reveal direct and indirect trophic interactions of this small-sized fish species. These results might illustrate the impact and importance of abundant, widespread species in food webs and facilitate further investigations.
    Schlagwort(e): LTER_Benthos; Macrobenthic long-term series in the German Bight
    Materialart: Dataset
    Format: application/zip, 4 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 2
    facet.materialart.
    Unbekannt
    Ecological Network Analyses (ENA) employed to calculate a food web in a Sargassum muticum forest (2015)
    PANGAEA
    In:  Alfred Wegener Institute - Wadden Sea Station Sylt
    Details
    Publikationsdatum: 2024-02-16
    Beschreibung: This study was conducted in the Sylt-Rømø bight (SRB) (54°52' N - 55°10' N, 8°20' E - 8°40' E), which is situated between the islands of Sylt (Germany) and Rømø (Denmark). Fish, meio- and macrofauna were sampled employing block nets and tube cores in a S. muticum forest in 2010. Additionally the meio- and macrofauna attached on thalli of Sargassum muticum were collected. Sampling data including Biomass, length weight relationships, and gut content analyses, together with literature data were used to calculate necessary parameters (Biomass, Respiration, Consumption, Production, Egestion) for each component of the food web. Carbon was used as currency to measure the flow of energy between the single components of the food web. To calculate the flows of energy, ash free dry weight (AFDW) to carbon (C) ratios were employed. Flows of energy inside the food web were calculated employing the routines of the program Netwrk 4.2 (Ulanowicz and Kay, 1991; Ulanowicz et al., 2005).
    Schlagwort(e): LTER_Benthos; Macrobenthic long-term series in the German Bight
    Materialart: Dataset
    Format: application/zip, 5 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 3
    facet.materialart.
    Unbekannt
    Meio-Macrofauna sampled in a Sargassum muticum forest in the Blidselbucht, Sylt (2015)
    PANGAEA
    Details
    Publikationsdatum: 2024-02-16
    Schlagwort(e): Bivalvia indeterminata; Caprellidae sp.; Cerastoderma sp.; Comment; Crangon crangon; Crassostrea gigas; Crepidula fornicata; Cypris, larvae; DATE/TIME; DEPTH, sediment/rock; Foraminifera; Gammarus sp.; Gastropoda indeterminata; Gear; Habitat; Harpacticoida, copepodites; Identification; Lanice sp.; Latitude of event; Longitude of event; Long-term time series Sylt; LTER_Benthos; Macrobenthic long-term series in the German Bight; MULT; Multiple investigations; Mya sp.; Mytilus edulis, shell; Nematoda; Nereididae; Ostracoda; Polychaeta, larvae; Polychaeta indeterminata; Size fraction; Sylt_Blidselbucht; Sylter Wattenmeer
    Materialart: Dataset
    Format: text/tab-separated-values, 159 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
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