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Light traps for sampling marine biodiversity
McLeod, L.E.; Costello, M.J. (2017). Light traps for sampling marine biodiversity. Helgol. Mar. Res. 71(1): [1-8 ]. http://dx.doi.org/10.1186/s10152-017-0483-1
In: Helgoland Marine Research. Springer: Berlin; Heidelberg. ISSN 1438-387X; e-ISSN 1438-3888, more
Peer reviewed article  

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Keywords
    Aquatic communities > Benthos
    Aquatic communities > Plankton
    Biodiversity
    Fauna > Aquatic organisms > Aquatic animals > Fish
    Monitoring
    Crustacea [WoRMS]
Author keywords
    Light traps; Demersal; Macrofauna

Authors  Top 
  • McLeod, L.E.
  • Costello, M.J., more

Abstract
    Standardised sampling methods are required to meet the Convention on Biological Diversity Aichi Targets to monitor trends in biodiversity. Currently the animals monitored in the marine environment are predominantly vertebrates and surface plankton, but arthropods (especially benthic crustaceans) make up a third of marine species, provide an important link in the food web and are under sampled. Sampling these animals with light traps on the benthos in structurally complex areas would fill a gap in biological monitoring. A survey of the literature of light-trap designs showed they collected at least 12 phyla of benthic and planktonic animals, and 13 orders of crustaceans. These traps can be deployed anywhere from an hour to overnight and on the seabed or in the water column. They can be low cost, have low environmental impact and be used in complex and fragile habitats otherwise difficult to sample. Environmental factors, such as water movement and turbidity, as well as trap design and method of deployment, may affect catch. Experimental field tests are required to develop the use of light-traps as a standard method for marine biodiversity monitoring, including design, deployment, and replication.

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