Haemobaphes spp

From Fish
Haemobaphes spp (arrows) on the gill of Alaska pollack.
Haemobaphes spp collected from the fish. Arrow shows the neck extending to the bulbus arteriosus

Haemobaphes spp are a copepod parasite which infects the gills of marine fish.

It has been reportedly documented in Alaska pollack (Theragra chalcogramma), Pacific cod (Gadus macrocephalus) and littlemouth flounder (Pleuronectes herzensteini)[1].

The parasite can be observed visually in the gill filaments, and causes wasting and anaemia in affected fish. Since this parasite is not infectious to human, it is harmless in food hygiene.

H. diceraus can be readily differentiated from Clavella perfida parasitizing the gill of Alaska pollack since the latter is smaller and has no long necks[2].


  1. Kabata, Z. (1988) Copepoda and Branchiura. Guide to the parasites of fishes of Canada. Part II-Crastacea. In: Margolis, L. and Z. Kabata (eds) Can Spec Publ Fish Aquat Sci 101:3-127
  2. Ho, J. S. & I. H. Kim (1996) Copepods parasitic on fishes of western north pacific. Publ Seto Mar Biol Lab 37:275-303