Larval parasitic copepods affect early life history traits of a temperate clingfish

Landaeta, Mauricio F.; Díaz-Richter, Camilo; Muñoz, Gabriela

doi:10.1007/s00436-020-06854-6

Cited by 4 publications

(1 citation statement)

References 28 publications

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“…Studies on initial parasitism of fishes have included young hosts (larvae, fry, young-of-the-year) in freshwater lakes and streams (Poulin et al 2012, Behrmann-Godel 2013, Markle et al 2014, estuaries (Sirois andDodson 2000, Bourque et al 2006) and marine seas and reefs (Rybkina et al 2016, Jahnsen-Guzmán et al 2018, Landaeta et al 2020. Metazoan parasites reported in these studies include directly transmitted monogenean and arthropod ectoparasites as well as food-borne digeneans, cestodes and nematodes, some (or closely related species) of which are known to cause mortalities in host fish held in captivity or at fish farms (Schäperclaus 1991, Woo 1995, Hoffman 1999.…”

Section: Introductionmentioning

confidence: 99%

Parasitism of Brook Trout (Salvelinus fontinalis) during the first month post-emergence in streams in southwest Nova Scotia

LeBlanc¹,

MacMillan²,

Marcogliese³

et al. 2021

Proc NSIS

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Parasite recruitment of recently emerged fry of brook trout (Salvelinus fontinalis) in three streams in southwestern Nova Scotia was documented. In early April, fry appeared to leave the protective gravel redds parasite free but began acquiring parasites within the next 2-4 weeks, with prevalence of infections of any given species reaching 21 to 46% by mid-May. The initial infections involved 1) directly transmitted ectoparasites Gyrodactylus colemanensis and Salmincola edwardsii and 2) food-borne endoparasites (Echinorhynchus lateralis and Crepidostomum sp.). Colonizing parasites found in the first month post-emergence varied by locality: at Bangor Creek, it involved G. colemanensis, E. lateralis, and Crepidostomum sp., while at Germaine East, it involved only G. colemanensis and at Germaine North, only S. edwardsii. In each case, the initial colonizers reflected what was abundant locally and within a regional pool of 10 parasite species. Localized skin thickening and sometimes tissue erosion were evident at sites of attachment of S. edwardsii. Minor disruption of fin margins was seen with G. colemanensis. No pathology was associated with E. lateralis nor Crepidostomum sp. The predictable timing of emergence and ease of sampling fry of S. fontinalis near redds represents a convenient system with which to assess impact of initial parasitism on fish recruitment at the local level. Keywords: Echinorhynchus, Gyrodactylus, initial parasite colonization, regional parasite pool, Salmincola

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