copepod infected with vorticella

If you are interested in this topic, you can refer to the paper by Xu Z, Burns CW. [Hydrobiologia (1990) 209: 183-189] . "When food was present there was no difference between carriers and non-carriers in growth of copepodites, and in survival and reproduction of adults. When food was absent, copepods infected with E. daphniae (vorticella) survived for shorter periods than non-carriers."

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Education

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• copepod
• vorticella

[nastm]

Dear TanQG, studied copepods in a eutrophic urban reservoir in Brazil. There were a large number of Cyclopoida (T.decipiens and M.mendocinus), but had not Calanoida infested with epibionts. The size of the antennules influence this relationship? The Cyclopoida are more susceptible than the Calanoida? Sincerely, Mello

[TanQG]

@nastm Hi Mello, thank you for your comment. I am sorry that I cannot answer your question because I am not an expert on copepod. My research interests are freshwater cladocerans. I found this copepod in the water collected from a small freshwater rocky pond.

[nastm]

@TanQG The environment that you collected this specimen would be an eutrophic environment? It seems to me that such infestations ciliates (ig. Epystilis sp.) occur in conditions of nutritional enrichment of anthropogenic sources such as domestic sewage, at least in Brazilian reservoirs. Regards, Nelson

[TanQG]

@nastm The rocky pond actually is very clean and should be oligotrophic. I remember that this infected copepod was taken from a beaker into which I added green algae. The water in the beaker was not changed for at least several weeks. It has been a long time, so I am not sure whether my memory is right.

[TanQG]

@nastm

[dlindeman]

Thank for posting the reference. I dont think i have access to the article .Did it mention the settling rates with and without in the water column.

Regards

Dave lindeman

[TanQG]

In the introduction of the paper, the authors cited another study which mentioned the sinking rate: "Herman & Mihursky (1964) considered that faster sinking rates of ciliate-infested copepods could be a disadvantage."

[scythiconatron]

I would think that one would refer to such a copepod as colonized by vorticella rather than infected by it. It seems like an encumbering barnacle-like situation.

[Arawin1]

aw, poor thing......