crustaceans

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crustaceans

members of the class crustacea. Includes amongst the aquatic crustaceans, shrimp, prawn, yabby, crab, lobster. Many of them are now farmed commercially in enclosed waters.

parasitic crustaceans
small crustaceans or copepods are common parasites on the gills of aquarium and pond fish where they appear as white spots. The gills become obstructed and the fish die of anoxia.
References in periodicals archive ?
Parasitic crustaceans are also interesting species as they can infect a wide range of marine and freshwater invertebrates and vertebrates, mainly fish (Smit et al.
In this paper the major description, epidemiology, pathogenesis and clinical sign, diagnosis, treatment and control of parasitic crustaceans in fish has been reviewed.
Parasitic crustaceans are increasingly serious problem in cultured fish and can infect wild populations.
There are main groups of parasitic crustaceans affecting commercially important aquaculture species, most of which are external parasites are the branchiura, copepod and isopod [11].
In wild fish populations, parasitic crustaceans may be influenced by factors related to the host's life history, which includes environment, body size, physiology, behavior, immunology and diet (Acacio, Varella, & Malta, 2012; Carvalho, Del-Claro, & Takemoto, 2003; Fontana, Takemoto, Malta, & Mateus, 2012; Guidelli, Takemoto, & Pavanelli, 2009; Walker, Harris, Velde, & Bonga, 2008).
In 12 species of hosts from a reservoir in Iran, only Cyprinus carpio, Barbus iacerta and Capoeta trutta were parasitized, and parasitic crustaceans community was constituted only by Lernaea cyprinacea and Tracheiiastes poiycoipus (Bozorgnia, Youssefi, Barzegar, Hosseinifard, & Ebrahimpour, 2012).
Wild fish usually coexist in equilibrium with parasites within the environment, but this balance in the parasite-host-environment interactions, when broken by environmental changes, may negatively affect hosts and, consequently, increase their susceptibility to infections by parasitic crustaceans (Carvalho et al.
The gills, skin, nostrils, and oral cavity were examined in search of parasitic crustaceans.
Lime and some natural products such as garlic [18, Weston, 2000) and Pinups resin [19] were used to control parasitic crustaceans.
The sacculinid rhizocephalans are parasitic crustaceans related to barnacles (class Cirripedia); their hosts are primarily decapod crustaceans.
I am pleased to know that some one has again taken up the subject of parasitic crustaceans in this country, and trust that you may be able to make good progress in the work.
Indeed, female gigantism is common in parasitic crustaceans (Raibaut and Trilles 1993).