Search results
Results from the WOW.Com Content Network
A creek chub with black spot disease. Black spot disease is a disease affecting fish. It is caused by larvae (metacercariae) of Diplostomatidae or Heterophyidae flatworms, which are encysted in the skin. It can affect both freshwater and marine [1] fish. [2] [3] It appears as tiny black spots on the skin, fins, and flesh of the fish.
Aquarium fish are often susceptible to numerous diseases, due to the artificially limited and concentrated environment. New fish can sometimes introduce diseases to aquaria, and these can be difficult to diagnose and treat. Most fish diseases are also aggravated when the fish is stressed. Common aquarium diseases include the following:
Bodies of the males are yellowish brown, with white spots above and bluish orange spots/bands on the flanks. Found near coral and rocky reefs. Omnivorous 25 cm. Aquarium fish Spot-fin porcupinefish (Bouletangue) Pale green to olive brown covered with black spots; shades of white below. Takes the shape of a ball covered with spines when inflated.
The top half of this fish is black towards the front and fades to white closer to the tail. The bottom half is white with two distinctive black spots right under the pectoral fins. 4.5 cm (1.8 in) Engineer goby: Pholidichthys leucotaenia: Yes: Not actually a blenny but from closely related family Pholidichthys.
The Dolly Varden trout (Salvelinus malma) is a species of salmonid ray-finned fish native to cold-water tributaries of the Pacific Ocean in Asia and North America.Despite the name "trout" (which typically refers to freshwater species from the genera Salmo and Oncorhynchus), it belongs to the genus Salvelinus (chars), which includes 51 recognized species, the most prominent being the brook ...
In addition, teleost fish possess a thymus, spleen and scattered immune areas within mucosal tissues (e.g. in the skin, gills, gut and gonads). Much like the mammalian immune system, teleost erythrocytes, neutrophils and granulocytes are believed to reside in the spleen whereas lymphocytes are the major cell type found in the thymus.
As the name implies, it causes severe anemia of infected fish. Unlike mammals, the red blood cells of fish have DNA, and can become infected with viruses. The fish develop pale gills, and may swim close to the water surface, gulping for air. However, the disease can also develop without the fish showing any external signs of illness, the fish ...
The overall colour is grey to brown with a pattern of dark spots covering almost all of the body and to the rear of the eyes, the spots fade towards the belly which is unspotted. There are 5 or 6 pale radial bluish stripes which are visible to the front of the lower orbit and there are curved pale blue lines that extend backwards and downwards ...