Search results
Results from the WOW.Com Content Network
Although tetrodotoxin was discovered in these fish, it is found in several other animals (e.g., in blue-ringed octopuses, rough-skinned newts, and moon snails). It is also produced by certain infectious or symbiotic bacteria like Pseudoalteromonas , Pseudomonas , and Vibrio as well as other species found in symbiotic relationships with animals ...
Monogenea are small parasitic flatworms mainly found on skin or gills of fish. They are rarely longer than about 2 cm. A few species infecting certain marine fish are larger, and marine forms are generally larger than those found on freshwater hosts. Monogenea are often capable of dramatically elongating and shortening as they move.
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. The life cycle of the parasite typically involves a fish-eating bird, a snail and a fish. [4]
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 maintain a normal appetite, and then they suddenly die.
Brightly colored and affordable, the yellow wrasse is a useful fish as it combats pyramid snails and flatworms. While they are active swimmers, they do require a deep sandy bed to burrow into ...
Eucestoda, commonly referred to as tapeworms, is the larger of the two subclasses of flatworms in the class Cestoda (the other subclass being Cestodaria).Larvae have six posterior hooks on the scolex (head), in contrast to the ten-hooked Cestodaria.
eating food contaminated with feces from an infected human or animal Cryptosporidiosis: Cryptosporidium spp. intestines stool widespread ingestion of oocyst (sporulated), some species are zoonotic (e.g. bovine fecal contamination) Cyclosporiasis: Cyclospora cayetanensis: intestines stool United States ingestion of oocyst through contaminated food
Fathead minnow (Pimephales promelas), also known as fathead or tuffy, is a species of temperate freshwater fish belonging to the genus Pimephales of the cyprinid family. The natural geographic range extends throughout much of North America, from central Canada south along the Rockies to Texas, and east to Virginia and the Northeastern United States. [2]