Search results
Results from the WOW.Com Content Network
The pumpkinseed (Lepomis gibbosus), also referred to as sun perch, [4] pond perch, common sunfish, punkie, sunfish, sunny, and kivver, is a small to medium–sized North American freshwater fish of the genus Lepomis (true sunfishes), from family Centrarchidae (sunfishes, crappies and black basses) in the order Perciformes.
Freshwater fish are fish species that spend some or all of their lives in bodies of fresh water such as rivers, lakes 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 .
The Amur carp is a hardy fish, and koi retain that durability. Koi are coldwater fish, but benefit from being kept in the 15–25 °C (59–77 °F) range, and do not react well to long, cold, winter temperatures; their immune systems are very weak below 10 °C (50 °F).
1913 illustration of Cyprinus carpio, better known as the common carp Common carp in Lake Minnetonka, Minnesota. The term carp (pl.: carp) is a generic common name for numerous species of freshwater fish from the family Cyprinidae, a very large clade of ray-finned fish mostly native to Eurasia.
The pond loaches prefer a water pH of 6.5–8.0, but, as a temperate-climate freshwater species, will tolerate far more acidic conditions, even for extended amounts of time, with little negative reactions. This makes the pond loach a great choice for first-time aquariums and for those who want a hardy fish tank able to withstand a few mistakes.
The ide is a rather plump, sturdily built fish with a deep body, although not especially so. The peduncle of the caudal fin is thick. When they are small, ide have dark backs and silvery sides, but older fish develop a golden sheen along the flanks. At all ages, the eye is yellow and the pectoral fin and anal fin are reddish in colour. [7]
Even using conservative estimates, freshwater fish extinction rates in North America are 877 times higher than background extinction rates (1 in 3,000,000 years). [32] Projected extinction rates for freshwater animals are around five times greater than for land animals, and are comparable to the rates for rainforest communities. [ 24 ]
A pond in the Oconee River Floodplain in Georgia, whose surface is covered in duckweed but still contains fish. Freshwater biology is the scientific biological study of freshwater ecosystems and is a branch of limnology. This field seeks to understand the relationships between living organisms in their physical environment.