A new species of Ergasilus (Copepoda: Ergasilidae
) from Geophagus altifrons and G.
This dual mode of life is also found in adults of the Ergasilidae
. Abbreviation of the planktonic phase is characteristic for some symbiotic taxa, thus suggesting that they have evolved to become highly efficient in locating and infecting new hosts without needing long-distance larval dispersal.
Fish are susceptible to parasites, including various species groups which damage the gill tissue, such as Ichthyophthirius multifiliis, Trichodina sp., Chilodonella sp., Henneguya sp., Dolops sp., Lernaea cyprinacea, Monogeneans, Nematodes, and Ergasilidae
(Schalch et al., 2006; Ueda et al., 2013).
(Ciliophora, Peritrichia) attached to Ergasilus chelangulatus (Ergasilidae
) in Brazil.
Life cycle: In Ergasilidae
only the female is parasitic, and is found on the gills of fish.
Copepodid stages of Ergasilus hypomesi Yamaguti (Copepoda, Poecilostomatoida, Ergasilidae
) from a brackish lake in Korea.
Dos especies de parasitos fueron reconocidas: Contracaecum multipapillatum (von Drasche, 1882) (Ascaridida: Anisakidae) y Ergasilus versicolor Wilson, 1911 (Poecilostomatoida: Ergasilidae
In some groups, insemination takes place off the host and males are not parasitic at all (family Ergasilidae
; Kabata 1981).
The following keywords were used to search for interesting papers: microcrustaceans, Copepoda, Cyclopoida, Calanoida, Harpacticoida, Ergasilidae
, Cladocera, Ostracoda, Conchostraca, zooplankton, reservoir, river, ponds, reservoirs, wetlands, caves, lakes, limnology, ecology, aquatic, taxonomy, systematics, morphology and biogeography.