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Little Crooked Run
Little Crooked Run is a tributary of Tomhicken Creek in Schuylkill County, Pennsylvania, in the United States. It is approximately long and flows through North Union Township. The watershed of the stream has an area of . The stream is considered to be a High-Quality Coldwater Fishery and Class A Wild Trout Waters. The main rock formations in the stream's watershed are the Mauch Chunk Formation and the Pottsville Formation and the main soil is the Hazleton soil. Course Little Crooked Run begins a in a valley in southeastern North Union Township, a few hundred feet from the border between North Union Township and East Union Township. The stream flows northeast for a few tenths of a mile before turning north and slightly west and leaving the valley. After several tenths of a mile, it crosses Miller Road and T872. A short distance downstream, it reaches its confluence with Tomhicken Creek. Little Crooked Run joins Tomhicken Creek upstream of its mouth. Hydrology Little Crooked Ru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catawissa Creek
Catawissa Creek (colloquially known as The Cat) is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed August 8, 2011 tributary of the Susquehanna River in east-central Pennsylvania in the United States. Its Drainage basin, watershed has an area of . The waters of Catawissa Creek are highly acidic, with a pH of 4.5, due to runoff from an abandoned mine in the creek's watershed. Catawissa Creek is smaller than the nearby Fishing Creek (North Branch Susquehanna River), Fishing Creek due to a lack of major tributaries. Catawissa Creek starts in Luzerne County, not far from Hazleton, Pennsylvania, Hazleton. It flows west and slightly south into Schuylkill County, Pennsylvania, Schuylkill County before flowing north into Columbia County, Pennsylvania, Columbia County and then west to the Susquehanna River, which it flows into at Catawissa, Pennsylvania, Catawissa. It parallels Catawissa Mountain for a significant portion of it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soil
Soil, also commonly referred to as earth or dirt, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life. Some scientific definitions distinguish ''dirt'' from ''soil'' by restricting the former term specifically to displaced soil. Soil consists of a solid phase of minerals and organic matter (the soil matrix), as well as a porous phase that holds gases (the soil atmosphere) and water (the soil solution). Accordingly, soil is a three-state system of solids, liquids, and gases. Soil is a product of several factors: the influence of climate, relief (elevation, orientation, and slope of terrain), organisms, and the soil's parent materials (original minerals) interacting over time. It continually undergoes development by way of numerous physical, chemical and biological processes, which include weathering with associated erosion. Given its complexity and strong internal connectedness, soil ecologists regard soil as an ecosystem. Most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Schuylkill County, Pennsylvania
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raccoon Creek (Tomhicken Creek)
Raccoon Creek is a tributary of Tomhicken Creek in Luzerne County and Schuylkill County, in Pennsylvania, in the United States. It is approximately long and flows through Black Creek Township in Luzerne County and North Union Township in Schuylkill County. The watershed of the stream has an area of . The stream is considered to be a High-Quality Coldwater Fishery and Class A Wild Trout Waters. The main rock formations in the stream's watershed are the Mauch Chunk Formation and the Pottsville Formation and the main soil is the Leck Kill soil. Course Raccoon Creek begins in a valley between Little Sugarloaf Mountain and another ridge in Black Creek Township, Luzerne County. It flows roughly west and within a few tenths of a mile, passes through the community of Weston. Upon exiting Weston, the creek continues west for more than a mile before turning southwest and leaving Black Creek Township and Luzerne County. Upon exiting Luzerne County, Raccoon Creek enters North Union Towns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sugarloaf Creek
Sugarloaf Creek is a tributary of Tomhicken Creek in Luzerne County, Pennsylvania, Luzerne County and Schuylkill County, Pennsylvania, Schuylkill County, in Pennsylvania, in the United States. It is approximately long and flows through Hazle Township and Black Creek Township in Luzerne County and North Union Township in Schuylkill County. The watershed of the stream has an area of . The stream is considered to be a Coldwater Fishery. The main rock formation in the stream's watershed are the Mauch Chunk Formation and the main soil is the Hazleton soil. The creek has been impaired by acid mine drainage from the Oneida Number One Tunnel. Course Sugarloaf Creek begins in a broad valley in Hazle Township, Luzerne County, Pennsylvania, Hazle Township, Luzerne County, with Little Sugarloaf Mountain to the north. It flows west for a few tenths of a mile before receiving an unnamed tributary. It then continues west and a short distance later exits Hazle Township and enters Black Creek Town ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biomass (ecology)
The biomass is the mass of living biological organisms in a given area or ecosystem at a given time. Biomass can refer to ''species biomass'', which is the mass of one or more species, or to ''community biomass'', which is the mass of all species in the community. It can include microorganisms, plants or animals. The mass can be expressed as the average mass per unit area, or as the total mass in the community. How biomass is measured depends on why it is being measured. Sometimes, the biomass is regarded as the natural mass of organisms ''in situ'', just as they are. For example, in a salmon fishery, the salmon biomass might be regarded as the total wet weight the salmon would have if they were taken out of the water. In other contexts, biomass can be measured in terms of the dried organic mass, so perhaps only 30% of the actual weight might count, the rest being water. For other purposes, only biological tissues count, and teeth, bones and shells are excluded. In some appl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Stocking
Fish stocking is the practice of raising fish in a hatchery and releasing them into a river, lake or ocean to supplement existing populations or to create a population where previously none exists. Stocking may be done for the benefit of commercial, recreational or tribal heritage fishing, but may also be done to restore or increase the population of threatened or endangered fish in a body of water closed to fishing. Fish stocking may be conducted by governmental agencies in public waters, or by private groups in private waters. When in public waters, fish stocking creates a common-pool resource which is rivalrous in nature but non-excludable. Thus, on public grounds, all can enjoy the benefits of fishing so long as fish continue to be stocked. History Fish stocking is a practice that dates back hundreds of years. According to biologist Edwin Pister, widespread trout stocking dates back to the 1800s. For the first hundred years of stocking, the location and number of fish introdu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brook Trout
The brook trout (''Salvelinus fontinalis'') is a species of freshwater fish in the char genus ''Salvelinus'' of the salmon family Salmonidae. It is native to Eastern North America in the United States and Canada, but has been introduced elsewhere in North America, as well as to Iceland, Europe, and Asia. In parts of its range, it is also known as the eastern brook trout, speckled trout, brook charr, squaretail, brookie or mud trout, among others. A potamodromous population in Lake Superior, as well as an anadromous population in Maine, is known as coaster trout or, simply, as coasters. The brook trout is the state fish of nine U.S. states: Michigan, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Vermont, Virginia, and West Virginia, and the Provincial Fish of Nova Scotia in Canada. Systematics and taxonomy The brook trout was first scientifically described as ''Salmo fontinalis'' by the naturalist Samuel Latham Mitchill in 1814. The specific epithet "''fontina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Fish And Boat Commission
The Pennsylvania Fish and Boat Commission is an independent state agency responsible for the regulation of all fishing and boating in the state of Pennsylvania within the United States of America. Unlike many U.S. states, Pennsylvania has a separate Game Commission. Its mission is: to protect, conserve, and enhance the Commonwealth's aquatic resources and provide fishing and boating opportunities. Created by law signed on March 23, 1866 by Governor Andrew Curtin, its original main purpose was to restore fish migrations of American shad within the rivers. Today, its scope manages boat launches, waterways, fish hatcheries, and other properties used for recreational fishing and boating. It also regulates the accessibility through dams on major waterways via fish ladders. Ten members make up the Board of Commissioners who oversee all operations, serving 8-year terms without pay. Among others, the Commission employs waterway conservation officers and biologists, while also utilizin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Department Of Environmental Protection
The Pennsylvania Department of Environmental Protection (DEP) is the agency in the U.S. state of Pennsylvania responsible for protecting and preserving the land, air, water, and public health through enforcement of the state's environmental laws. It was created by Act 18 of 1995, which split the Department of Environmental Resources into the Department of Environmental Protection and the Department of Conservation and Natural Resources. Its current acting secretary is Ramez Ziadeh. The Department of Environmental Resources was created by Act 275 of 1970, which abolished the Department of Forest and Waters. The Department of Forest and Waters was created by the General Assembly in 1901. The Department of Environmental Protection is charged with the responsibility for development of a balanced ecological system incorporating social, cultural, and economic needs of the commonwealth through development and protection. The department is responsible for the state's land, air, and water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Population Density
Population density (in agriculture: standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geographical term.Matt RosenberPopulation Density Geography.about.com. March 2, 2011. Retrieved on December 10, 2011. In simple terms, population density refers to the number of people living in an area per square kilometre, or other unit of land area. Biological population densities Population density is population divided by total land area, sometimes including seas and oceans, as appropriate. Low densities may cause an extinction vortex and further reduce fertility. This is called the Allee effect after the scientist who identified it. Examples of the causes of reduced fertility in low population densities are * Increased problems with locating sexual mates * Increased inbreeding Human densities Population density is the number of people per unit of area, usuall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
