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The influence of the composition of algal detritus on nematode assemblages

The influence of the composition of algal detritus on nematode assemblages
The influence of the composition of algal detritus on nematode assemblages
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.
NematodesDecomposition processMesh bag experimentMacroalgal detritus
2352-4855
Kim, Hyeong-gi
d076978e-b593-4740-8708-62ea0e4dbc81
Hawkins, Lawrence E.
9c4d1845-82db-4305-acb5-31b218ac9c0e
Godbold, Jasmin A.
df6da569-e7ea-43ca-8a95-a563829fb88a
Bohn, Katrin
f5f46426-9750-4520-b90d-d8d1edeec007
Khim, Jong Seong
8e39635d-b468-4d06-8e3e-9919c810762a
Hawkins, Stephen J.
758fe1c1-30cd-4ed1-bb65-2471dc7c11fa
Kim, Hyeong-gi
d076978e-b593-4740-8708-62ea0e4dbc81
Hawkins, Lawrence E.
9c4d1845-82db-4305-acb5-31b218ac9c0e
Godbold, Jasmin A.
df6da569-e7ea-43ca-8a95-a563829fb88a
Bohn, Katrin
f5f46426-9750-4520-b90d-d8d1edeec007
Khim, Jong Seong
8e39635d-b468-4d06-8e3e-9919c810762a
Hawkins, Stephen J.
758fe1c1-30cd-4ed1-bb65-2471dc7c11fa

Kim, Hyeong-gi, Hawkins, Lawrence E., Godbold, Jasmin A., Bohn, Katrin, Khim, Jong Seong and Hawkins, Stephen J. (2021) The influence of the composition of algal detritus on nematode assemblages. Regional Studies in Marine Science, 48, [102004]. (doi:10.1016/j.rsma.2021.102004).

Record type: Article

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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More information

Accepted/In Press date: 3 September 2021
e-pub ahead of print date: 5 September 2021
Published date: 1 November 2021
Keywords: NematodesDecomposition processMesh bag experimentMacroalgal detritus

Identifiers

Local EPrints ID: 452936
URI: http://eprints.soton.ac.uk/id/eprint/452936
ISSN: 2352-4855
PURE UUID: 76f106f4-b63d-46e4-8b09-4d5226071088
ORCID for Lawrence E. Hawkins: ORCID iD orcid.org/0000-0002-9236-2396
ORCID for Jasmin A. Godbold: ORCID iD orcid.org/0000-0001-5558-8188

Catalogue record

Date deposited: 06 Jan 2022 17:55
Last modified: 09 Jan 2022 03:38

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Contributors

Author: Hyeong-gi Kim
Author: Katrin Bohn
Author: Jong Seong Khim

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