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 ?
A pound coin placed near the giant crustacean, above right, gives an idea of its size.
The other group, which was generally favoured, thought they came from a class of crustaceans called branchiopods, which include brine shrimp and fairy shrimp.
Crustaceans include lobsters, crabs, shrimps and barnacles, as well as many smaller species.
Crustaceans average weekly contribution to total seafood by region 52 weeks ended 11/28/09 52 weeks ended 11/29/08 CENTRAL 10.
Up to 60 per cent of tiny amphipod crustaceans, the insects of the marine world, were not currently described.
Although crustaceans can adapt to a wide variety of habitats and ways of life, environments that are completely safe have become scarcer and market demands have grown stronger, making aquaculture a primary source.
The crustaceans are common to many coastal areas of the globe and so are a good species to study.
Invertebrates include both insects and crustaceans, which diverged long ago into separate branches on the evolutionary tree.
Claws information was dotted around the aquarium where visitors could come face-to-face with some more members of the crustacean family and learn more about them.
Arthropod invertebrates such as insects and crustaceans require periodic moulting to attain somatic growth.
Twelve titles are dedicated to Biology (Amphibians, Birds, Fish, Insects, Mammals, Mollusks and Crustaceans, Reptiles, Sea Jellies, SeaStars, Spiders and Scorpions, Sponges, and Worms).
Skye's grandmother, Edda Elmore, admits she is slowly warming to the crustaceans, perhaps because of what she witnessed as she passed by the crabs' quarters one day.