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Clear Lake Hitch
The Clear Lake hitch (''Lavinia exilicauda chi'') is a freshwater fish and a subspecies of the Hitch (fish), hitch (''Lavinia exilicauda''). It is a Cyprinidae, cyprinid fish that is endemic to Clear Lake, California. They are large minnows that can grow to lengths that exceed Fish measurement, standard length. The fish has a life cycle of four to six years. During the winter and spring, when the rains fill up dry rivers, they migrate up the lake's tributaries to spawn. In 2014, it was listed as Threatened species, threatened by the state of California. Local Pomo Tribes call Clear Lake hitch "chi" and harvested the fish during its spawning runs. Taxonomy The Clear Lake hitch is in the Cyprinidae, Cyprinidae family, which consists of minnows and carp. The genus Lavinia is closely related to another minnow with the genus Hesperoleucus, also known as California roach, California Roach. Due to the close relatedness of the hitch and California roach, there has been debate on if the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish
Freshwater fish are fish species that spend some or all of their lives in bodies of fresh water such as rivers, lakes, ponds and inland wetlands, where the salinity is less than 1.05%. These environments differ from marine habitats in many ways, especially the difference in levels of osmolarity. To survive in fresh water, fish need a range of physiological adaptations. 41.24% of all known species of fish are found in fresh water. This is primarily due to the rapid speciation that the scattered habitats make possible. When dealing with ponds and lakes, one might use the same basic models of speciation as when studying island biogeography. Physiology Freshwater fish differ physiologically from saltwater fish in several respects. Their gills must be able to diffuse dissolved gases while keeping the electrolytes in the body fluids inside. Their scales reduce water diffusion through the skin: freshwater fish that have suffered too much scale loss will die. They also have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
