Microhabitat and shrimp abundance within a Norwegian cold-water coral ecosystem

Cold-water coral (CWC) reefs are heterogeneous ecosystems comprising numerous microhabitats. A typical European CWC reef provides various biogenic microhabitats (within, on and surrounding colonies of coral species such as Lophelia pertusa, Paragorgia arborea and Primnoa resedaeformis , or formed by their remains after death). These microhabitats may be surrounded and intermixed with non-biogenic microhabitats (soft sediment, hard ground, gravel/pebbles, steep walls). To date, studies of distribution of sessile fauna across CWC reefs have been more numerous than those investigating mobile fauna distribution. In this study we quantified shrimp densities associated with key CWC microhabitat categories at the Rost Reef, Norway, by analysing image data collected by towed video sled in June 2007. We also investigated shrimp distribution patterns on the local scale ( Paragorgia arborea microhabitat (43 shrimp m −2 , SD = 35.5), live Primnoa resedaeformis microhabitat (41.6 shrimp m −2 , SD = 26.1) and live Lophelia pertusa microhabitat (24.4 shrimp m −2 , SD = 18.6). In non-biogenic microhabitat, shrimp densities were −2 . CWC reef microhabitats appear to support greater shrimp densities than the surrounding non-biogenic microhabitats at the Rost Reef, at least at the time of survey.

• Publication year

  2013

• Venue

  Biogeosciences

• Publication date

  2013-09-03

• Fields of study

  Biology, Environmental Science

• Identifiers
  DOI 10.5194/BG-10-5779-2013
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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