Parasites communities in the clingfish Gobiesox marmoratus from Central Chile

• Autorzy: Munoz G.
• Języki publikacji: EN

Abstrakty

EN

This study investigated the factors (i.e., season, locality, sampling year, total length and maturity stage of the hosts) that might influence the structure of parasite populations and communities in the clingfish Gobiesox marmoratus. The parasite community was described and analyzed using numerical descriptors, such as prevalence, intensity and species richness, between factors previously mentioned. A total of 260 clingfish were collected from 2 localities of central Chile, four seasons and during 3 year cycles (from July 2006 to July 2009). In the whole clingfish sample, 668 parasites were found, which belonged to 14 parasite taxa; 9 of them were new records in G. marmoratus. Parasite infracommunity richness ranged 0–3 species, although 1 trematode species, Helicometrina nimia, represented 80% of all parasites collected and was the most abundant and prevalent parasite species. The average of parasite abundance and intensity (± SD) was 2.5 ± 8.2 and 7.5 ± 12.7, respectively. Generalized linear model showed that parasite communities were influenced by season, locality, sampling year, and maturity stage when considering the abundance and intensity of parasites. For the parasite richness, only the locality and maturity of fish was determinant for explaining the differences. The populations and communities of the parasite variations were variable due to differences in fish body length because prevalence, abundance and intensity of parasites significantly correlated with the fish body length. Concordantly, maturity fish were longer than immature fish. Thus, clingfish from El Tabo were longest and mature, which harbored higher parasite richness than those fish from Las Cruces.

Słowa kluczowe

EN

parasite community; parasite population; clingfish; Gobiesox marmoratus; total length; locality; maturity; Chile

• Wydawca: -
• Czasopismo: Acta Parasitologica
• Rocznik: 2014
• Tom: 59
• Numer: 1
• Opis fizyczny: p.108-114,fig.,ref.

Twórcy

autor

Munoz G.

• Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaiso, P.O. 5080, Renaca, Vina del Mar, Chile

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