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Bridle Shiner
The bridle shiner (''Notropis bifrenatus'') is a member of the minnow family (Cyprinidae). This species has been identified as being of ''Special Concern'' by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). Distribution The bridle shiner is found in eastern North America, from eastern Lake Ontario, east to Maine, and south to South Carolina. In Ontario, it is found in lowland areas in the eastern Lake Ontario drainage and the Saint Lawrence River. The most stable population is found around the Thousand Islands. Characteristics *Small, slender body; somewhat compressed laterally *Average adult length of 50 mm *Snout length usually smaller than eye diameter *Small, angular, terminal mouth *Large scales; lateral line incomplete *Straw-coloured, silvery dorsal side with a green-blue iridescence and silvery-white on ventral side *Prominent black lateral band from tail to snout *Males develop minute nuptial tubercles on the head, nape and pector ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Drinker Cope
Edward Drinker Cope (July 28, 1840 – April 12, 1897) was an American zoologist, paleontologist, comparative anatomist, herpetologist, and ichthyologist. Born to a wealthy Quaker family, Cope distinguished himself as a child prodigy interested in science; he published his first scientific paper at the age of 19. Though his father tried to raise Cope as a gentleman farmer, he eventually acquiesced to his son's scientific aspirations. Cope married his cousin and had one child; the family moved from Philadelphia to Haddonfield, New Jersey, although Cope would maintain a residence and museum in Philadelphia in his later years. Cope had little formal scientific training, and he eschewed a teaching position for field work. He made regular trips to the American West, prospecting in the 1870s and 1880s, often as a member of United States Geological Survey teams. A personal feud between Cope and paleontologist Othniel Charles Marsh led to a period of intense fossil-finding competit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellow Perch
The yellow perch (''Perca flavescens''), commonly referred to as perch, striped perch, American perch, American river perch or preacher is a freshwater perciform fish native to much of North America. The yellow perch was described in 1814 by Samuel Latham Mitchill from New York. It is closely related, and morphologically similar to the European perch (''Perca fluviatilis''); and is sometimes considered a subspecies of its European counterpart. Other common names for yellow perch include American perch, coontail, lake perch, raccoon perch, ring-tail perch, ringed perch, and striped perch. Another nickname for the perch is the Dodd fish. Latitudinal variability in age, growth rates, and size have been observed among populations of yellow perch, likely resulting from differences in day length and annual water temperatures. In many populations, yellow perch often live 9 to 10 years, with adults generally ranging from in length. The world record yellow perch (; ) was caught in M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notropis Heterolepis
The blacknose shiner (''Notropis heterolepis'') is a species of fish belonging to the family Leuciscidae. Description The blacknose shiner is a soft-rayed species up to 9.8 cm with toothless jaws, but gill arches that contain one or two rows of distinctive teeth. It has cycloid scales, but a scaleless head. There are 19 caudal rays, and the dorsal and anal fins are very short. The anal fin is closer to the middle of the body than to the caudal fin. Usually, it is a murky yellow on the dorsal side with a pale underside. There are two long, lateral stripes on the fish along the center of the body, and on the dorsal side of the fish. Distribution and habitat The blacknose shiner ranges from the Atlantic, Great Lakes, Hudson Bay, and Mississippi River north to Nova Scotia and Saskatchewan, south to Ohio, Illinois, south-central Missouri. It is more prevalent in the northern sections of its range, and seems to be disappearing in the southern portions. It lives typically in co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notropis Heterodon
The blackchin shiner (''Notropis heterodon'') is an abundant North American species of freshwater fish from the family Cyprinidae. Described by Edward Drinker Cope in 1865, it is not a well-known species. It is a close relative of the blacknose shiner. Chiefly occurring now in the Great Lakes and occasionally in upper Mississippi River drainages, the blackchin once ranged commonly as far south as Illinois and Ohio. This fish resides over sandy bottoms in cool waters that provide a lot of cover for the small minnow. Omnivorous, it eats worms and small arthropods as well as plant material. Blackchin shiners are unique because of their anatomical features, such as the black coloring, the incomplete lateral line, and a distinctive dental arrangement. Taxonomy American naturalist Edward Drinker Cope described the blackchin shiner in 1865 as ''Alburnops heterodon'', from specimens collected in Lansing and Grosse Isle, Michigan. The original type specimens have been lost. The genus ''Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notropis Anogenus
The pugnose shiner (''Notropis anogenus'') is a species of ray-finned fish in the genus ''Notropis''. It is in the family Cyprinidae which consists of freshwater carps and minnows. Cyprinidae is the largest fish family which consists of about 369 genera and 3,018 species. Its distribution has been decreasing due to the removal of aquatic plants in order to create swimming beaches and boating access in freshwater lakes and is now mostly found in Minnesota, Wisconsin, and Michigan. Distribution The pugnose shiner is a non-abundant species of ''Notropis'' and within the United States, it is distributed across parts of Minnesota, Wisconsin, and Michigan. It is native to North America and its historic range was from eastern Ontario and Western New York to North Dakota, Illinois, Indiana, and Ohio, ending in the St. Lawrence River drainage. The population that was once in North Dakota is now thought to be extirpated due to turbidity and uprooted vegetation within the freshwater lakes a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notropis Volucellus
The mimic shiner (''Notropis volucellus') is a species of North American cyprinid freshwater fish in the genus ''Notropis''. The genus ''Notropis'' is commonly known as the eastern shiners. It is native to areas of the Hudson Bay drainage, Great Lakes drainage, much of the Mississippi River basin including areas of Tennessee, Virginia, North Carolina, and regions of the Gulf of Mexico extending from Mobile Bay to the drainage of Texas. However, this particular species can be found in other places such as the Atlantic Coast drainage in Connecticut and Housatonic rivers. This genus is usually characterized by almost all having a complete lateral line, 8 dorsal fin rays, a premaxillae protactile, and a silvery or speckled peritoneum. As the common name indicates, this species is difficult to classify in the wild because it looks similar to many other shiners. In fact, some even hypothesize that this species is actually a complexity of many cryptic species.Etnier, D.A. and W.C. Starnes. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notropis Stramineus
The sand shiner (''Notropis stramineus'') is a widespread North American species of freshwater fish in the family Cyprinidae. Sand shiners live in open clear water streams with sandy bottoms where they feed in schools on aquatic and terrestrial insects, bottom ooze and diatoms. Distribution The sand shiner is extremely widespread, known from central part of the United States and southern Canada. The range stretches from Saint Lawrence-Great Lakes, Hudson Bay and Mississippi River basins which are part of the St. Lawrence River in Quebec to Saskatchewan in Canada. The range also stretches south to Tennessee and Texas; west to Montana, Wyoming, Colorado and New Mexico; Trinity River to Rio Grande in Texas and New Mexico, and Mexico.Hubbs, C., R. J. Edwards, and G. P. Garrett. 1991. An annotated checklist of the freshwater fishes of Texas, with keys to identification of species. ''Texas Journal of Science'', Supplement 43(4):1–56 Name The genus name ''Notropis'' means keeled bac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myriophyllum
''Myriophyllum'' (water milfoil) is a genus of about 69 species of freshwater aquatic plants, with a cosmopolitan distribution. The center of diversity for ''Myriophyllum'' is Australia with 43 recognized species (37 endemic). These submersed aquatic plants are perhaps most commonly recognized for having elongate stems with air canals and whorled leaves that are finely, pinnately divided, but there are many exceptions. For example, the North American species ''M''. ''tenellum'' has alternately arranged scale like leaves, while many Australian species have small alternate or opposite leaves that lack dissection. The plants are usually heterophyllous, leaves above the water are often stiffer and smaller than the submerged leaves on the same plant and can lack dissection. Species can be monoecious or dioecious. In monoecious species plants are hermaphrodite, in dioecious species plants are either male or female, the flowers are small, 4(2)-parted and usually borne in emergent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invasive Species
An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native species that become harmful to their native environment after human alterations to its food webfor example the purple sea urchin ('' Strongylocentrotus purpuratus'') which has decimated kelp forests along the northern California coast due to overharvesting of its natural predator, the California sea otter ('' Enhydra lutris''). Since the 20th century, invasive species have become a serious economic, social, and environmental threat. Invasion of long-established ecosystems by organisms is a natural phenomenon, but human-facilitated introductions have greatly increased the rate, scale, and geographic range ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zebra Mussel
The zebra mussel (''Dreissena polymorpha'') is a small freshwater mussel. The species originates from the lakes of southern Russia and Ukraine, but has been accidentally introduced to numerous other areas and has become an invasive species in many countries worldwide. Since the 1980s, the species has invaded the Great Lakes, Hudson River, and Lake Travis. The species was first described in 1769 by German zoologist Peter Simon Pallas in the Ural, Volga, and Dnieper Rivers. Zebra mussels get their name from a striped pattern commonly seen on their shells, though it is not universally present. They are usually about the size of a fingernail, but can grow to a maximum length around . Shells are D-shaped, and attached to the substrate with strong byssal fibers, which come out of their umbo on the dorsal (hinged) side. Ecology Zebra mussels and the closely related and ecologically similar quagga mussels are filter-feeding organisms; they remove particles from the water colum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seth Eugene Meek
Seth Eugene Meek (April 1, 1859, Hicksville, Ohio – July 6, 1914, Chicago) was an American ichthyologist at the Field Museum of Natural History in Chicago. He was the first compiler of a book on Mexican freshwater fishes. Together with his assistant, Samuel F. Hildebrand, he produced the first book on the freshwater fishes of Panama. He often collaborated with Charles H. Gilbert, and in 1884 on a collecting trip through the Ozarks, they discovered a new species, ''Etheostoma nianguae'', which only lives in the Osage River basin. Also with them on that excursion was David Starr Jordan, considered the father of modern ichthyology. After the Ozarks trip, Meek accepted the post of professor of biology and geology at Arkansas Industrial University (now the University of Arkansas). Tribute The American halfbeak The American halfbeak (''Hyporhamphus meeki''), also known as Meek's halfbeak, is a halfbeak from the family Hemiramphidae. Its specific name is in honor of American ic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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