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Population dynamics of Mytilicola intestinalis in Mytilus edulis in South West England
Davey, J.T.; Gee, J.M.; Moore, S.L. (1978). Population dynamics of Mytilicola intestinalis in Mytilus edulis in South West England. Mar. Biol. (Berl.) 45(4): 319-327
In: Marine Biology. Springer: Heidelberg; Berlin. ISSN 0025-3162, more
Peer reviewed article  

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    Breeding; Growth; Parasites; Population dynamics; Seasonal variations; Temperature effects; Mytilicola intestinalis Steuer, 1902 [WoRMS]; Mytilus edulis Linnaeus, 1758 [WoRMS]; Fresh water

Authors  Top 
  • Davey, J.T.
  • Gee, J.M.
  • Moore, S.L.

    The population dynamics of Mytilicola intestinalis Steuer in mussels (Mytilus edulis L.) from the River Lynher, Cornwall, England, have been studied over 3 years. By transplanting uninfested mussels from the River Erme, South Devon, into the Lynher mussel bed, the study was extended to the growth and development of new infestations under natural conditions. Female Mytilicola intestinalis are shown to breed twice, and two generations of parasites coexist for most of the year, with recruitment taking place in summer and autumn. One generation contributes its first brood to the autumn recruits before overwintering and contributing its second brood to the following summer's recruits. The other generation overwinters as juvenile and immature stages to contribute its two broods successively to the summer and autumn recruits. Environmental temperatures are believed to control the rates of development at all stages rather than acting as triggers in the onset or cessation of breeding at specific times. There is no evidence to support the contention that heavily infested mussels are killed, and parasite mortality is shown to be density-independent.

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