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The influence of the composition of algal detritus on nematode assemblages
Kim, H.-G.; Hawkins, L.E.; Godbold, J.A.; Bohn, K.; Khim, J.S.; Hawkins, S.J. (2021). The influence of the composition of algal detritus on nematode assemblages. Regional Studies in Marine Science 48: 102004. https://dx.doi.org/10.1016/j.rsma.2021.102004
In: Regional Studies in Marine Science. Elsevier: Amsterdam. ISSN 2352-4855, more
Peer reviewed article  

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Keywords
    Nematoda [WoRMS]
    Marine/Coastal
Author keywords
    Nematodes; Decomposition process; Mesh bag experiment; Macroalgal detritus

Authors  Top 
  • Kim, H.-G.
  • Hawkins, L.E.
  • Godbold, J.A.
  • Bohn, K.
  • Khim, J.S.
  • Hawkins, S.J.

Abstract
    A field-based experiment was conducted on a detritus-loaded beach from the south coast of the British Isles (Poole Harbour) to investigate the decay rates of different combinations of algal detritus and their associated nematode assemblages. Ten algal mixture treatment combinations (monocultures with all possible 2 or 3 mixed algal treatments) of three different species of green (Chlorophyta), brown (Phaeophyta), and red (Rhodophyta) algae were used to determine how the diversity of decaying algal detritus affects the associated nematode assemblage composition and structure. Our results indicated that nematode density, diversity, and assemblage composition differed significantly among the different algal treatments. The nematode densities and genera richness were significantly higher in the mixed algal treatments compared to those in the algal monoculture treatments. The loss of seaweed dry weight varied significantly among the algal detritus treatments with which included brown algae tending to decay at a slower rate than others. These results indicate different type of macroalgae detritus could offer different nutrient input and that encourage different dominant nematode species and composition.

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