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Parasitization of a hydrothermal vent limpet (Lepetodrilidae, Vetigastropoda) by a highly modified copepod (Chitonophilidae, Cyclopoida)

Parasitization of a hydrothermal vent limpet (Lepetodrilidae, Vetigastropoda) by a highly modified copepod (Chitonophilidae, Cyclopoida)
Parasitization of a hydrothermal vent limpet (Lepetodrilidae, Vetigastropoda) by a highly modified copepod (Chitonophilidae, Cyclopoida)
The limpet Lepetodrilus fucensis McLean is very abundant at hydrothermal vents on the Juan de Fuca and Explorer Ridges in the northeast Pacific Ocean. This limpet is parasitized by an undescribed chitonophilid copepod throughout the limpet's range. The parasite copepodite enters the mantle cavity and attaches to the afferent branchial vein. The initial invasive stage is a vermiform endosome within the vein that develops an extensive rootlet system causing an enlargement of the afferent branchial vein. Subsequently, an ectosomal female body grows outside the vein to sizes up to 2 mm in width. Once a dwarf male attaches, egg clusters form and nauplii are released. In over 3000 limpets examined from 30 populations, prevalence averaged about 5% with localized infections in female limpets over 25%. After the establishment of limpet populations at new vents, copepod prevalence increased over the succeeding months to 3 years. Host effects were marked and included castration of both sexes and deterioration in gill condition which affected both food acquisition and the gill symbiont. There was a significantly greater parasite prevalence in larger females which likely modifies the reproductive and competitive success of local host populations.
Chitonophilidae, Lepetodrilacea, hydrothermal vent, parasitization, pathogenesis, parasitic copepod, castration, host condition, host sex bias
0031-1820
1281-1293
Tunnicliffe, V.
c4d12c54-d113-4329-8997-79b7fce1a446
Rose, J.M.
44a58751-c840-4e84-aff2-db49d5994d7f
Bates, A.E.
a96e267d-6d22-4232-b7ed-ce4e448a2a34
Kelly, N.E.
0de62dcf-7d36-4e4b-9749-dcf03381e1d5
Tunnicliffe, V.
c4d12c54-d113-4329-8997-79b7fce1a446
Rose, J.M.
44a58751-c840-4e84-aff2-db49d5994d7f
Bates, A.E.
a96e267d-6d22-4232-b7ed-ce4e448a2a34
Kelly, N.E.
0de62dcf-7d36-4e4b-9749-dcf03381e1d5

Tunnicliffe, V., Rose, J.M., Bates, A.E. and Kelly, N.E. (2008) Parasitization of a hydrothermal vent limpet (Lepetodrilidae, Vetigastropoda) by a highly modified copepod (Chitonophilidae, Cyclopoida). Parasitology, 135 (11), 1281-1293. (doi:10.1017/S0031182008004721).

Record type: Article

Abstract

The limpet Lepetodrilus fucensis McLean is very abundant at hydrothermal vents on the Juan de Fuca and Explorer Ridges in the northeast Pacific Ocean. This limpet is parasitized by an undescribed chitonophilid copepod throughout the limpet's range. The parasite copepodite enters the mantle cavity and attaches to the afferent branchial vein. The initial invasive stage is a vermiform endosome within the vein that develops an extensive rootlet system causing an enlargement of the afferent branchial vein. Subsequently, an ectosomal female body grows outside the vein to sizes up to 2 mm in width. Once a dwarf male attaches, egg clusters form and nauplii are released. In over 3000 limpets examined from 30 populations, prevalence averaged about 5% with localized infections in female limpets over 25%. After the establishment of limpet populations at new vents, copepod prevalence increased over the succeeding months to 3 years. Host effects were marked and included castration of both sexes and deterioration in gill condition which affected both food acquisition and the gill symbiont. There was a significantly greater parasite prevalence in larger females which likely modifies the reproductive and competitive success of local host populations.

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More information

Published date: September 2008
Keywords: Chitonophilidae, Lepetodrilacea, hydrothermal vent, parasitization, pathogenesis, parasitic copepod, castration, host condition, host sex bias
Organisations: Ocean and Earth Science

Identifiers

Local EPrints ID: 361240
URI: http://eprints.soton.ac.uk/id/eprint/361240
ISSN: 0031-1820
PURE UUID: eb6c0ced-b51d-4e1f-9107-295f256a77b5

Catalogue record

Date deposited: 15 Jan 2014 15:14
Last modified: 16 Jul 2019 21:14

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