Abergasilus

Abergasilus

Taxobox
name = "Abergasilus amplexus"
regnum = Animalia
phylum = Arthropoda
subphylum = Crustacea
classis = Maxillopoda
subclassis = Copepoda
ordo = Poecilostomatoida
familia = Ergasilidae
genus = "Abergasilus"
species = "A. amplexus"
binomial = "Abergasilus amplexus"
binomial_authority = Hewitt, 1978

"Abergasilus amplexus" is a species of parasitic copepod endemic to euryhaline habitats in New Zealand. It is currently the only known species in the genus "Abergasilus". The main host appears to be "Anguilla australis": in Lake Ellesmere, infestation rates on this eel approach 100%, sometimes with over 100 parasites on the gills of a single fish. Other recorded host species include "Anguilla dieffenbachii", "Arripis trutta", "Carassius auratus", "Galaxias maculatus", "Perca fluviatilis", "Pseudophycis bachus", "Retropinna retropinna", "Rhombosolea leporina", "Rhombosolea plebeia" and "Rhombosolea retiaria".

This species is unique among ergasilids in that it only has three pairs of legs: the fourth and fifth pairs are reduced to single spines or completely absent. The second antenna is very distinctive, hooks on the last and penultimate segments creating an obviously claw-like structure, more obvious in the female. The male is free-living, forming part of the plankton. Both sexes have an average length of 0.5 mm.

References

*cite journal |quotes=no |url=http://www.rsnz.org/publish/nzjmfr/1978/22.php |title="Abergasilus amplexus" gen. et sp. nov. (Ergasilidae; parasitic Copepoda) from fishes in Lake Ellesmere, New Zealand |journal=New Zealand Journal of Marine and Freshwater Research |volume=12 |issue=2 |year=1978 |author=G. C. Hewitt |pages=173–177
*cite journal |quotes=no |url=http://www.rsnz.org/publish/nzjmfr/1981/31.php |title="Abergasilus amplexus" Hewitt, 1978 (Ergasilidae: Copepoda) from New Zealand, with a description of the male |journal=New Zealand Journal of Marine and Freshwater Research |volume=15 |year=1981 |author=J. B. Jones |pages=275–278


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Ergasilidae — Taxobox name = Ergasilidae regnum = Animalia phylum = Arthropoda subphylum = Crustacea classis = Maxillopoda subclassis = Copepoda ordo = Poecilostomatoida familia = Ergasilidae familia authority = Von Nordmann, 1832 subdivision ranks = Genera… …   Wikipedia

  • Saprolegnia — Scientific classification Kingdom: Chromalveolata Phylum …   Wikipedia

  • Myxobolus cerebralis — Triactinomyxon stage of Myxobolus cerebralis. Note the three tails . Scientific classification …   Wikipedia

  • Ceratomyxa shasta — spores Scientific classification Kingdom: Animalia …   Wikipedia

  • Cryptocaryon — irritans Scientific classification Domain: Eukarya Kingdom: Chromalveolata Superphylum: Alveolata …   Wikipedia

  • Novirhabdovirus — Virus classification Group: Group V (( )ssRNA) Order: Mononegavirales Family …   Wikipedia

  • Columnaris — in a Chinook salmon Columnaris is a symptom of disease in fish which results from an infection caused by the gram negative, aerobic, rod shaped bacterium Flavobacterium columnare. It was previously known by the names of bacillus columnaris,… …   Wikipedia

  • Lernaeocera branchialis — The gills of a whiting infested by two blood sucking Lernaeocera branchialis Scientific classification Kingdom …   Wikipedia

  • Cryptobia — Scientific classification Domain: Eukaryota (unranked): Excavata Phylum: Protozoa …   Wikipedia

  • Dactylogyrus vastator — Scientific classification Kingdom: Animalia Phylum: Platyhelminthes Class: Monogenea …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”