Deseased Trout

[davetclown]

[left]Alt tho the ponds water is clear this dosnt mean there are not areas where there is black bottom, or feeds to the pond with black bottom.[/left] [left] [/left] [left]the larger fish take over the larger holes in the pond and pick up on the parisite faster than the smaller fry who have to keep moving to avoid being eaten.[/left] [left] [/left] [left]dont hold me to this diagnastic, it has to be identified under a microscope.[/left] [center] [/center] [left]if you can get a microscope and the critter looks like this see atatchment below.[/left] [center] [/center] [center]this is ocurs naturaly in all fresh waters.[/center] [center] [/center] [left]this problem is transfered to fish tanks by feeder fish primarily "minows" caught and resold to fish shops.[/left] [left] [/left] [left]Being that this is a small pond it is a good posibility that this below is your critter. You can click on the name to take you to a page that is an introduction freshwater parisite identification. [/left] [url "http://edis.ifas.ufl.edu/FA041"]Ichthyophthirius multifiliis[/url] <-- link [left]The disease called "Ich" or "white spot disease" has been a problem to aquarists for generations. Fish infected with this organism typically develop small blister-like raised lesions along the body wall and/or fins. If the infection is restricted to the gills, no white spots will be seen. The gills will appear swollen and be covered with thick mucus. Identification of the parasite on the gills, skin, and/or fins is necessary to conclude that fish has an "ich" infection. The mature parasite ( [url "http://edis.ifas.ufl.edu/images/427046329"]Figure 1 [/url]) is very large, up to 1000 µm in diameter, is very dark in color due to the thick cilia covering the entire cell, and moves with an amoeboid motion. Classically, I . multifiliis is identified by its large horseshoe-shaped macronucleus. This feature is not always readily visible, however, and should not be the sole criterion for identification. Immature forms of I . multifiliis are smaller and more translucent in appearance. Some individuals have suggested that the immature forms of I . multifiliis resemble Tetrahymena . Fortunately, scanning the preparation will usually reveal the presence of mature parasites and allow confirmation of the diagnosis. [/left]
[center][/url] Ichthyopthirius multifiliis is a species of [url "http://en.wikipedia.org/wiki/Ciliate"]ciliate[/url] protozoa which [url "http://en.wikipedia.org/wiki/Parasite"]parasitizes[/url] freshwater fish. The disease it causes is usually called [url "http://en.wikipedia.org/wiki/Ich"]Ich[/url] or [url "http://en.wikipedia.org/wiki/Ich"]white spot[/url], and becomes especially serious in enclosed areas, where it spreads quickly from one fish to another. Ich is the disease responsible for the most fatalities in [url "http://en.wikipedia.org/wiki/Aquarium"]aquarium[/url] fish and can cause notable damage to [url "http://en.wikipedia.org/wiki/Aquaculture"]aquaculture[/url]
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