Journal ArticleDOI
A Method for Studying the External Anatomy of Copepods
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In this article, it was shown that lactic acid is the best clearing agent for the preparation of temporary mounts of whole or dissected copepods, and that obese forms or specimens with a thin cuticle are best transferred through mixtures of the medium in which they have been kept and Lactic acid.Abstract:
We have found lactic acid to be the best clearing agent for the preparation of temporary mounts of whole or dissected copepods. Fresh, alcoholic, or formalin fixed specimens become cleared within a few minutes to some hours, depending upon their size and the duration of preservation. When first placed in the un diluted acid, the copepods may become somewhat contracted, but soon regain, and thereafter retain, their normal size and shape. In order to avoid rupture, obese forms or specimens with a thin cuticle are best transferred through mixtures of the medium in which they have been kept and lactic acid. Since the latter is dense, layering the fluids in a small dish is usually satisfactory: the original medium will evaporate slowly, leaving the speci mens in the acid. Fluids with appreciable concentrations of dissolved salts, however, should be avoided, preferably by transferring the specimens first either to alcohol or to fresh-water.read more
Citations
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Occurrence of Caligus asperimanus Pearse, 1951 (Copepoda: Caligidae) parasitic Lutjanus spp. (Perciformes: Lutjanidae) in the western South Atlantic.
Bruno De Laquila Oliveira,Luiz Fernando Loureiro Fernandes,Gustavo Martins Rocha,Ana Cecilia Gomes Silva Malanski,Fabiano Paschoal +4 more
TL;DR: The first record of Caligus asperimanus Pearse, 1951 in the Western South Atlantic is documented parasitizing Lutjanus jocu and LUTjanus vivanus caught from coastal zones of Espírito Santo and Rio de Janeiro State, respectively.
Journal ArticleDOI
Two Copepods Salmincola edwardsii and Salmincola markewitschi (Lernaeopodidae) Parasitic on Chars (Salvelinus spp.) Reared in a Salmon Museum, Northern Japan
TL;DR: These copepods were collected from chars reared in exhibition tanks of the Sapporo Salmon Museum, Hokkaido, Japan and were completely eliminated by stopping rearing an infected population of southern Asian Dolly Varden, to which this parasite is host-specific.
Journal ArticleDOI
Some new and known species of Hatschekia Poche, 1902 (Copepoda, Siphonostomatoida, Hatschekiidae) parasitic on the branchial lamellae of Japanese actinopterygian fishes belonging to Perciformes (2)
TL;DR: Twelve species of Hatschekia Poche, 1902 are (re-)described based on specimens recovered from the branchial lamellae of Japanese actinopterygian fishes belonging to Perciformes.
Journal ArticleDOI
Six new species of Copepoda (Clausiidae, Pseudanthessiidae, Polyankyliidae) associated with polychaetes from Korea
TL;DR: Six new species are described from Korean waters, three of them belonging in the family Clausiidae, one in the Pseudanthessiaceae, and two in the Polyankyliidae.
Journal ArticleDOI
Hamaticyclops ahni, a New Genus and Species of the Family Clausidiidae (Crustacea, Copepoda, Poecilostomatoida) from California, United States
TL;DR: The new genus Hamaticyclops ahni is described as a new genus and species from the Californian shore of the United States that possesses, as significant autapomorphies, three strong claws on the second endopodal segment of antenna and a markedly elongate exopod of leg 5 with its protopod fused to somite.
References
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Journal ArticleDOI
Preparation of Copepod Mounts for Taxonomic Work and for Permanent Collections
TL;DR: An investigation of the microfauna of the shore at Whitstable, Kent, it was necessary to examine and to identify the many Harpacticoid copepods which occurred there.