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Topics related to "Lake Michigan perch grow more slowly than others Population decline may be"

Buffalo (city) Buffalo (city)
Buffalo city (1990 pop. 328,123), seat of Erie co., W N.Y., on Lake Erie and the Niagara and Buffalo rivers; inc. 1832. With more than 37 mi (60 km) of waterfront, it is a major commercial and industrial port and railroad hub. Buffalo is a diversified manufacturing and financial center, with a... Read more
effective population size effective population size
effective population size The average number of individuals in a population that actually contribute genes to succeeding generations by breeding. This number is generally rather lower than the observed, censused, population size, being reduced by the following factors: a. a higher proportion of one... Read more
Population growth Population growth
P OPULATIONG ROWTH Population growth refers to change in the size of a population—which can be either positive or negative—over time, depending on the balance of births and deaths. If there are many deaths, the world's population will grow very slowly or can... Read more
Rust Belt Rust Belt
Rust Belt or Rustbelt, economic region in the NE quadrant of the United States, focused on the Midwestern (see Midwest ) states of Illinois, Indiana, Michigan, and Ohio, as well as Pennsylvania. The term gained wide use in the 1970s as the formerly dominant industrial region became noted for... Read more
Benton Harbor Benton Harbor
Benton Harbor city (1990 pop. 12,818), Berrien co., SW Mich., on Lake Michigan at the mouth of the St. Joseph River opposite St. Joseph; inc. 1869. A long-time fruit industry, tourist, and industrial center, noted for appliance manufacturing, the city declined in the late 20th cent., experiencing... Read more
S-shaped growth curve S-shaped growth curve
S-shaped growth curve (sigmoid growth curve) A pattern of growth in which, in a new environment, the population density of an organism increases slowly initially, in a positive acceleration phase; then increases rapidly approaching an exponential growth rate as in the J-shaped curve; but then... Read more
perch perch
perch common name for some members of the family Percidae, symmetrical freshwater fishes of N Europe, Asia, and North America. The perch belongs to the large order Perciformes (spiny-finned fishes) and is related to the sunfishes and the sea basses. Best known is the yellow (also called red) perch... Read more
Sprawl Sprawl
Sprawl A term used in debates about urban growth, sprawl does not have a precise, academic definition. As a noun, it most often refers to spread-out development that requires people to use a car for every activity, because it strictly separates housing, shopping, schools, offices, and other land... Read more
Lake Victoria Lake Victoria
Lake Victoria or Victoria Nyanza , largest lake of Africa and the world's second largest freshwater lake, c.26,830 sq mi (69,490 sq km), E central Africa, on the Uganda-Tanzania-Kenya border. Lake Victoria (c.255 mi/410 km long and c.155 mi/250 km wide) occupies a shallow depression (c.250 ft/75... Read more
eutrophication eutrophication
eutrophication , aging of a lake by biological enrichment of its water. In a young lake the water is cold and clear, supporting little life. With time, streams draining into the lake introduce nutrients such as nitrogen and phosphorus, which encourage the growth of aquatic organisms. As the lake's... Read more

Related newspaper, magazine, and trade journal articles from HighBeam Research

CLAM HARVESTING MAY BE CLOSED WASHBOARD MUSSEL NUMBERS IN DECLINE.(Sports)
Newspaper article from: The Capital Times ...problem with Lake Michigan's perch includes...washboard populations continued to decline. In 1996...efforts. Population sizes and...absent. Population densities...to harvest other ...

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