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Infection with cerebral metacercariae of microphallid trematode parasites reduces reproductive output in the gammarid amphipod Gammarus insensibilis (Stock 1966) in UK saline lagoons

Infection with cerebral metacercariae of microphallid trematode parasites reduces reproductive output in the gammarid amphipod Gammarus insensibilis (Stock 1966) in UK saline lagoons
Infection with cerebral metacercariae of microphallid trematode parasites reduces reproductive output in the gammarid amphipod Gammarus insensibilis (Stock 1966) in UK saline lagoons




Abstract




Saline lagoons are priority habitats in the United Kingdom supporting several protected specialist species. One specialist, the amphipod Gammarus insensibilis, is infected with behaviour-altering microphallid trematodes such as Microphallus papillorobustus. In saline lagoons around the coast of England (Gilkicker and Lymington–Keyhaven on the Hampshire coast and Moulton Marsh in Lincolnshire) there is variation in the prevalence of this parasite in the gammarid populations (0 at Salterns in the Lymington–Keyhaven lagoon system to 98% at Gilkicker). Infection intensity ranged from 0 to 20 metacercariae in individual amphipods. Higher infection intensity can alter the shape of the amphipod's head. Under experimental conditions respiration rate is significantly reduced in infected animals and reproductive output (expressed as early stage embryos mg g dry weight−1) is significantly lower in infected females. It is important to consider the role of host–parasite interactions in order to understand the ecology of specialist lagoon species such as G. insensibilis and their lagoon habitats.
0025-3154
1-10
Gates, Andrew R.
327a3cc6-2e53-4090-9f96-219461087be9
Sheader, Martin
4d124355-7755-4eaa-97de-8512b4e8a0fa
Williams, John A.
f6ba1788-3b2f-4050-a6b9-473109691093
Hawkins, Lawrence E.
9c4d1845-82db-4305-acb5-31b218ac9c0e
Gates, Andrew R.
327a3cc6-2e53-4090-9f96-219461087be9
Sheader, Martin
4d124355-7755-4eaa-97de-8512b4e8a0fa
Williams, John A.
f6ba1788-3b2f-4050-a6b9-473109691093
Hawkins, Lawrence E.
9c4d1845-82db-4305-acb5-31b218ac9c0e

Gates, Andrew R., Sheader, Martin, Williams, John A. and Hawkins, Lawrence E. (2017) Infection with cerebral metacercariae of microphallid trematode parasites reduces reproductive output in the gammarid amphipod Gammarus insensibilis (Stock 1966) in UK saline lagoons. Journal of the Marine Biological Association of the United Kingdom, 1-10. (doi:10.1017/S0025315417000662).

Record type: Article

Abstract





Abstract




Saline lagoons are priority habitats in the United Kingdom supporting several protected specialist species. One specialist, the amphipod Gammarus insensibilis, is infected with behaviour-altering microphallid trematodes such as Microphallus papillorobustus. In saline lagoons around the coast of England (Gilkicker and Lymington–Keyhaven on the Hampshire coast and Moulton Marsh in Lincolnshire) there is variation in the prevalence of this parasite in the gammarid populations (0 at Salterns in the Lymington–Keyhaven lagoon system to 98% at Gilkicker). Infection intensity ranged from 0 to 20 metacercariae in individual amphipods. Higher infection intensity can alter the shape of the amphipod's head. Under experimental conditions respiration rate is significantly reduced in infected animals and reproductive output (expressed as early stage embryos mg g dry weight−1) is significantly lower in infected females. It is important to consider the role of host–parasite interactions in order to understand the ecology of specialist lagoon species such as G. insensibilis and their lagoon habitats.

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More information

Accepted/In Press date: 3 April 2017
e-pub ahead of print date: 9 May 2017
Organisations: Ocean and Earth Science, Marine Biogeochemistry, National Oceanography Centre, Southampton Marine & Maritime Institute

Identifiers

Local EPrints ID: 411923
URI: https://eprints.soton.ac.uk/id/eprint/411923
ISSN: 0025-3154
PURE UUID: 1fc318d3-e564-4b12-8e96-539a71e543c7
ORCID for Lawrence E. Hawkins: ORCID iD orcid.org/0000-0002-9236-2396

Catalogue record

Date deposited: 30 Jun 2017 16:30
Last modified: 03 Dec 2019 02:06

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