killahbeez2000 Posted June 7, 2003 Share Posted June 7, 2003 can anyone tell me what pods are or what they look like?? Link to comment
Acoustic Posted June 7, 2003 Share Posted June 7, 2003 Lesson for today! Anatomy A common feature uniting all the copepod orders is a single simple eye in the middle of the head, at least in the larval stage. The cephalosome, a shield over the head and some thoracic segments distinguishes the free living forms. Most are very small, less than 1 mm long, but rare oceanic species are over 1 centimetre. There are several different forms of copepods arranged into ten groups called orders. It is not a simple matter to distinguish the orders of copepods, and impossible without a good microscope. Few biologists attempt to identify copepods beyond the level of order but species diversity has been found by those that have to be very high. Most of the free-living species belong to only three orders. The rest are usually parasitic, some barely recognisable as crustaceans except when larvae. Link to comment
Orange Crush Posted June 7, 2003 Share Posted June 7, 2003 little bug lookin white dudes from almost invisible to the naked eye up to a few millimeters long crawling around your rocks sand and on your glass Link to comment
Acoustic Posted June 7, 2003 Share Posted June 7, 2003 Biology Free-living copepods will be found only by towing very fine nets, certainly less than quarter-millimetre mesh, through a pond or sea-water, or by washing the fauna off marine algae through a net of this kind. Animals which may appear only as a tiny speck to the naked eye may be copepods but their identity demands most detailed microscopic examination of preserved specimens. Being so small, free-living copepods can feed only on small food items like bacteria, diatoms or other unicellular forms. Eggs produced by the female copepod are carried in clusters in one or a pair of egg-sacs attached to the base of the abdomen. Females like this are easy to recognise as copepods. Link to comment
adinsxq Posted June 7, 2003 Share Posted June 7, 2003 amphipods and isopods as are in your tank too. iso's are squashed downwards amphi's are squashed sidways Link to comment
Acoustic Posted June 7, 2003 Share Posted June 7, 2003 Distribution Copepods live throughout all the water masses of the ocean and lakes, on the ocean floor, as well as in association with other animals Link to comment
Orange Crush Posted June 7, 2003 Share Posted June 7, 2003 yeah, um, like I said, little bug lookin white dudes Link to comment
chufa Posted June 8, 2003 Share Posted June 8, 2003 In my tank I have yet to see a copepod, but I have tons of amphipods. Link to comment
killahbeez2000 Posted June 8, 2003 Author Share Posted June 8, 2003 hey thanks alot guys and gals Link to comment
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