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  • 2020-2024  (12)
  • 2020-2022  (10)
  • 2005-2009  (48)
  • 1990-1994  (33)
Document type
Keywords
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Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Interactions in soft bottom benthic communities: Quantitative aspects of behaviour in the surface deposit feedersPygospio elegans (Polychaeta) andMacoma balthica (Bivalvia) (1991)
    Springer
    Helgoland marine research 45 (1991), S. 301-316 
    Details
    ISSN: 1438-3888
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The surface deposit feeding speciesPygospio elegans andMacoma balthica are dominant members of many sandy bottom communities of northern boreal regions. The feeding mode of both species and the tube-building ofP. elegans are assumed to affect community structure by interactions with other species. The weight of tubes ofP. elegans varied between 2 and 13 g DW/100 cm2 at the two stations investigated and during the year, which is equivalent to 230–1500 cm of tubes per 100 cm2 of sediment surface. Sediment stability may be affected directly or indirectly by the amount of tubes present.M. balthica shows a linear relation between the maximum size of particles which can be inhaled and animal length. In Kiel Bay, particles〉0.5 mm are out of the range of this species. In summer, the potential feeding area (PFA) of aP. elegans population at one station in Kiel Bay was 1.8 times the available surface area. The PFA of three different populations ofM. balthica in Kiel Bay exceeded the available surface area by factors of 2.6, 2.7, and 3.2. These findings indicate strong intra- and interspecific competition for food. Additionally, the feeding of both species may strongly affect the recruitment of benthic species via pelagic larvae. Experiments are proposed to evaluate the significance of the investigated behavioural aspects for community structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02365522
    Location Call Number Limitation Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Lissarca notorcadensis (Bivalvia: Philobryidae) living on Notocidaris sp. (Echinoidea: Cidaridae): Population dynamics in limited space (1993)
    Springer
    Polar biology 13 (1993), S. 89-95 
    Details
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Population dynamics of the epizoic bivalve Lissarca notorcadensis living on spines of cidaroid sea urchins in the Weddell Sea were investigated. Total production (somatic & gonad) of the suspension feeding bivalve ranged between 16.5 and 487.4 mg AFDM y−1 per sea urchin. Annual sedimentation rates are not sufficient to maintain the production of the Lissarca sub-populations carried by the sea urchins, and resuspension of organic matter is most likely to be an important food source. The ratio of the number of freshly settled juveniles to the number of embryos brooded is between 0.054 and 0.207 and seems negatively related to the biomass already present, indicating intraspecific competition for space. Interspecific competition for space is caused by the strong preference of L. notorcadensis as well as other epizoa (colonial anthozoans and bryozoans) for the spines located on the aboral hemispere of the sea urchins.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00238540
    Location Call Number Limitation Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Antarctic benthic diversity (1994)
    [s.l.] : Nature Publishing Group
    Nature 368 (1994), S. 297-297 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR — Poore and Wilson1, and Rex et al.2, give evidence for a distinct decline in species diversity in deep-sea communities from the tropics towards north polar re-gions; and for a less clear trend but high interregional variability in the Southern Hemisphere. Poore and Wilson1 included some ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/368297a0
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    The genus Sterechinm (Echinodermata: Echinoidea) on the Weddell Sea shelf and slope (Antarctica): distribution, abundance and biomass (1991)
    Springer
    Polar biology 11 (1991), S. 227-232 
    Details
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Two species of the echinoid genus Sterechinus were documented from 92 trawl stations and 55 photographic stations in the eastern and southern Weddell Sea between 100 and 1200 m water depth. We found two species occuring along the whole shelf and slope, S. neumayeri being more abundant above 450 m water depth and S. antarcticus dominating the deeper regions. The size-frequency distributions of both species indicate differences in growth, mortality and longevity. First estimates of abundance and biomass of S. neumayeri and S. antarcticus are 0.085 ind/m2 & 0.005 gAFDW/m2 and 0.022 ind/m2 & 0.005 gAFDW/m2, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00238455
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    Paper (German National Licenses)
    Fulltext
  • 5
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    Climate change disrupts core habitats of marine species (2023)
    Wiley
    Details
    Publication Date: 2024-02-07
    Description: Driven by climate change, marine biodiversity is undergoing a phase of rapid change that has proven to be even faster than changes observed in terrestrial ecosystems. Understanding how these changes in species composition will affect future marine life is crucial for conservation management, especially due to increasing demands for marine natural resources. Here, we analyse predictions of a multiparameter habitat suitability model covering the global projected ranges of 〉33,500 marine species from climate model projections under three CO2 emission scenarios (RCP2.6, RCP4.5, RCP8.5) up to the year 2100. Our results show that the core habitat area will decline for many species, resulting in a net loss of 50% of the core habitat area for almost half of all marine species in 2100 under the high-emission scenario RCP8.5. As an additional consequence of the continuing distributional reorganization of marine life, gaps around the equator will appear for 8% (RCP2.6), 24% (RCP4.5), and 88% (RCP8.5) of marine species with cross-equatorial ranges. For many more species, continuous distributional ranges will be disrupted, thus reducing effective population size. In addition, high invasion rates in higher latitudes and polar regions will lead to substantial changes in the ecosystem and food web structure, particularly regarding the introduction of new predators. Overall, our study highlights that the degree of spatial and structural reorganization of marine life with ensued consequences for ecosystem functionality and conservation efforts will critically depend on the realized greenhouse gas emission pathway.
    Type: Article , PeerReviewed
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 6
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    Stable isotope ratios in abundant components of the benthic boundary layer community during cruise DI229 (2009)
    PANGAEA
    Details
    Publication Date: 2023-02-24
    Keywords: 13200-001; 13200-009; 13200-027; 13200-035; 13200-039; 13200-041; 13200-059; 13200-060; 13200-070; 13200-074; 13200-084; 13200-091; 13200-093; 13200-094; 13200-099; ALBEX lander; BENGAL; Benthic Biology and Geochemistry of a North-eastern Atlantic Abyssal Locality; BN; Bottom net; Chalut à perche (6 m beam trawl); Comment; CP; D229; Date/Time of event; DEPTH, sediment/rock; Discovery (1962); Elevation of event; Event label; Individuals; Latitude of event; Longitude of event; MCB57; MultiCorer Barnett pattern (12-57); NIOZL; OTSB14; Semi-balloon trawl; Spade box corer; Species; Taxonomic hierarchy; VEGBOXC; δ13C; δ15N
    Type: Dataset
    Format: text/tab-separated-values, 898 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    Stable isotope ratios in abundant components of the benthic boundary layer community during cruise DI222/2 (2009)
    PANGAEA
    Details
    Publication Date: 2023-02-24
    Keywords: 12930-010; 12930-015; 12930-025; 12930-026; 12930-032; 12930-034; 12930-037; 12930-046; 12930-064; 12930-071; 12930-078; 12930-081; Baited free-fall benthic amphipod trap; BC; BENGAL; Benthic Biology and Geochemistry of a North-eastern Atlantic Abyssal Locality; Box corer; Comment; D222/2; Date/Time of event; DEMAR; DEPTH, sediment/rock; Discovery (1962); Elevation of event; Event label; Individuals; Latitude of event; Longitude of event; MCB57; MEGAC; MegaCorer; MultiCorer Barnett pattern (12-57); OTSB14; SAPS; Semi-balloon trawl; Species; Stand-alone pumps; Taxonomic hierarchy; δ13C; δ15N
    Type: Dataset
    Format: text/tab-separated-values, 437 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    Semi-quantitative records of benthic taxa from trawl samples taken in the wider Weddell Sea (Antarctica) during POLARSTERN cruises ANT VII/4, ANT IX/3, ANT XIII/3, ANT XV/3 and ANT XXI/2 between 1989 and 2004 (2020)
    PANGAEA
    Details
    Publication Date: 2023-07-10
    Description: The dataset comprises a total of 9,540 records of semi-quantitative data for 53 benthic invertebrate taxa and fish from 180 trawl samples (Agassiz trawl, bottom trawl, Rauschert dredge, benthopelagic trawl). The semi-quantitative data represent four categories regarding the frequency of occurrence of the benthic taxa (i.e. 0 = absent, 1 = rare, 2 = common and 3 = very common). The dataset was collected on the shelf and slope of the eastern Weddell Sea and Lazarev Sea, near Bouvet Island and the region at the north western tip of the Antarctic Peninsula (depth range: 64 - 2334 m) between 1989 and 2004 onboard "Polarstern". Cruises ANT VII/4 (1989), ANT IX/3 (1990/91), ANT XIII/3 (1996), ANT XV/3 (1998) and ANT XXI/2 (2003/2004) contributed to the data collection.
    Keywords: Acari; Actiniaria; Agassiz Trawl; AGT; Alcyonacea; Amphipoda; ANT-IX/3; ANT-VII/4; ANT-XIII/3; ANT-XV/3; ANT-XXI/2; Aplacophora; Ascidiacea; Asteroidea; Bentho-pelagic trawl; Bivalvia; Bottom trawl; BPT; Brachiopoda; Bryozoa; BT; Campaign; Cephalopoda; Cirripedia; Crinoidea; Cumacea; DATE/TIME; Date/time end; Decapoda; Demospongia; DEPTH, water; Drake Passage; Dredge, Rauschert; Drescher Inlet; Eastern Weddell Sea, Southern Ocean; Echinoidea; Echiurida; Errantia; Event label; Gear; Gorgonariana; Graptolithoidea; Halley Bay; Haul 8; Height; Hexacorallia; Hexactinellida; Holothuroidea; Hydroidolina; Hydrozoa; Isopoda; Kapp Norvegia; King George Island, Antarctic Peninsula; LATITUDE; Lazarev Sea; Leptostraca; LONGITUDE; Mesh size; MULT; Multiple investigations; Mysida; Nematoda; Nemertea; Nudibranchia; Ophiuroidea; Opisthobranchia; Ostracoda; Pantopoda; Pennatula; Pisces; Platyhelminthes; Polarstern; Polyplacophora; Porifera; Priapulida; Project; Prosobranchia; PS14/211; PS14/212; PS14/217; PS14/224; PS14/226; PS14/229; PS14/230; PS14/235; PS14/235-1; PS14/241; PS14/241-1; PS14/245; PS14/245-1; PS14/248; PS14/249; PS14/249-1; PS14/250; PS14/250-1; PS14/252; PS14/253; PS14/256; PS14/257; PS14/258; PS14/259; PS14/260; PS14/261; PS14/269; PS14/270; PS14/271; PS14/272; PS14/273; PS14/274; PS14/275; PS14/281; PS14/282; PS14/284; PS14/289; PS14/290; PS14/291; PS14/293; PS14 EPOS I; PS18; PS18/123-1; PS18/129-1; PS18/130-1; PS18/133-1; PS18/135-2; PS18/158-1; PS18/160-2; PS18/162-1; PS18/165-2; PS18/168-1; PS18/169-1; PS18/171-2; PS18/173-1; PS18/174-1; PS18/176-1; PS18/179-1; PS18/180-3; PS18/189-3; PS18/192-2; PS18/206-1; PS18/207-2; PS18/211-1; PS18/212-8; PS18/220-2; PS39/001-1; PS39/002-9; PS39/004-4; PS39/005-11; PS39/006-12; PS39/006-15; PS39/009-1; PS39/009-15; PS39/009-18; PS39/011-1; PS39/012-1; PS39/013-4; PS39/014-2; PS39/015-1; PS39/016-1; PS39/017-1; PS39/018-1; PS39/024-2; PS39/025-1; PS39/025-13; PS39/029-1; PS39/030-2; PS39 EASIZ; PS48/006; PS48/037; PS48/039; PS48/044; PS48/049; PS48/050; PS48/062; PS48/071; PS48/077; PS48/082; PS48/088; PS48/095; PS48/097; PS48/100; PS48/115; PS48/120; PS48/123; PS48/128; PS48/134; PS48/141; PS48/144; PS48/150; PS48/154; PS48/157; PS48/166; PS48/167; PS48/168; PS48/172; PS48/189; PS48/194; PS48/197; PS48/198; PS48/206; PS48/214; PS48/220; PS48/222; PS48/277; PS48/295; PS48/296; PS48/303; PS48/308; PS48/322; PS48/324; PS48/329; PS48/336; PS48/337; PS48/338; PS48/346; PS48/348; PS48/352; PS48/355; PS48 EASIZ II; PS65/019-1; PS65/020-1; PS65/028-1; PS65/029-1; PS65/039-1; PS65/090-1; PS65/109-1; PS65/121-1; PS65/132-1; PS65/161-1; PS65/173-1; PS65/233-1; PS65/245-1; PS65/248-1; PS65/253-1; PS65/259-1; PS65/265-1; PS65/274-1; PS65/276-1; PS65/278-1; PS65/279-1; PS65/280-1; PS65/292-1; PS65/336-1; PS65/344-1; PS65 BENDEX; Pycnogonida; RD; Sample ID; Scaphopoda; Scleractinia; Sedentaria; Ship speed; Siboglinidae; Sipuncula; South Atlantic Ocean; South of Vestkapp; Station label; Stolonifera; Stylasteridae; Tanaidacea; Trawling time; Turbellaria; Weddell Sea; Width
    Type: Dataset
    Format: text/tab-separated-values, 11229 data points
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    DATA PANGAEA
  • 9
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    Masterchronology on Arctica islandica from Spiekeroog (2006)
    PANGAEA
    In:  Supplement to: Epplé, Valerie M; Brey, Thomas; Witbaard, Rob; Kuhnert, Henning; Pätzold, Jürgen (2006): Sclerochronological records of Arctica Islandica from the inner German Bight. The Holocene, 16(5), 763-769, https://doi.org/10.1191/0959683606hl970rr
    Details
    Publication Date: 2024-01-25
    Description: Sclerochronological records of interannual shell growth variability were established for eight modern shells (26 to 163 years of age) of the bivalve Arctica islandica, which were sampled at one site in the inner German Bight. The records indicate generally low synchrony between individuals. Spectral analysis of the whole 163-yr masterchronology indicated a cyclic pattern with a period of 5 and 7 years. The masterchronology correlated poorly to time series of environmental parameters over the last 90 years. High environmental variability in time and space of the dynamic and complex German Bight hydrographic system results in an extraordinarily high noise' level in the shell growth pattern of Arctica islandica.
    Keywords: Age; AGE; arctica-2002_01; BEAM; Beam trawl; Digital imaging; LTER_Benthos; Macrobenthic long-term series in the German Bight; ORDINAL NUMBER; Replicates; Spiekeroog, German Bight, North Sea; Standardized shell increment; Standardized shell increment, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 599 data points
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    DATA PANGAEA
  • 10
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    PANABIO: A point-referenced pan-Arctic data collection of benthic biotas (2023)
    PANGAEA
    Details
    Publication Date: 2024-05-07
    Description: The PAN-Arctic data collection of benthic BIOtas (PANABIO) contains records of benthic fauna identified at genus-level or species-level in field samples taken at point-referenced locations (stations) by means of grabs, towed gear, or seabed imaging. The data are from all major marine Arctic areas, i.e., central Arctic Ocean, Chukchi Sea, East Siberian Sea, Laptev Sea, Kara Sea, Barents Sea (incl. White Sea), Svalbard waters, Greenland Sea, Norwegian Sea, Canadian Archipelago, Beaufort Sea, and Bering Sea, as well as some adjacent sub-Arctic regions (Sea of Japan, Gulf of Okhotsk). Currently (14 December 2023), the collection includes 27 datasets with a total of 126,388 records (ranging from presence to counts, abundances or biomass) of 2,978 taxa, identified in 11,555 samples taken at 10,596 stations during 1,095 cruises between 1800 and 2014. It is also available in a PostgreSQL-based data warehouse that can be accessed and queried through an open-access frontend web service at https://critterbase.awi.de/panabio.
    Keywords: Arctic; Benthos; Biodiversity; biogeography
    Type: Dataset
    Format: application/zip, 27 datasets
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    DATA PANGAEA
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