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Topic: Fish migration

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	Migration - Wikipedia, the free encyclopedia
		Animals may also migrate to a certain location to breed, as is the case with some fish.
		The longest known migration of a bird is that of the Arctic Tern, which migrates from the Arctic to the Antarctic and back each year.
		Piercing migration, where a piece of body jewelry, during or after healing, shifts or is rejected by the body.
	en.wikipedia.org /wiki/Migration (286 words)

	Learn more about Fish in the online encyclopedia. (Site not responding. Last check: 2007-10-22)
		A fish is a poikilothermic water-dwelling vertebrate with gills.
		Fishes (over 27,315 species) are a paraphyletic group and are divided into the bony fishes (class Osteichthyes, 22,000 species); cartilaginous fishes (class Chondrichthyes, 800 species); and various groups of jawless fishes (75 species), including lampreys and hagfish.
		Fishes is the proper English plural form of fish that biologists use when speaking about two or more fish species, as in "There are over 25,000 fishes in the world" (meaning that there are over 25,000 fish species in the world).
	www.onlineencyclopedia.org /f/fi/fish.html (421 words)

	Fish migration -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-22)
		Many types of (Any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills) fish undertake (The movement of persons from one country or locality to another) migrations on a regular basis, on time scales ranging from daily to annual, and with distances ranging from a few meters to thousands of kilometers.
		Vertical migration is a common daily behavior; many marine types move to the surface at night to feed, then return to the depths.
		Freshwater fish migrations are usually shorter, typically from lake to stream or vice versa, for spawning purposes.
	www.absoluteastronomy.com /encyclopedia/f/fi/fish_migration.htm (302 words)

	DAMS, FISH AND FISHERIES- Opportunities, challenges and conflict resolution
		Fish passing through hydraulic turbines are subject to various forms of stress likely to cause high mortality: probability of shocks from moving or stationary parts of the turbine (guide vanes, vanes or blades on the wheel), sudden acceleration or deceleration, very sudden variations in pressure and cavitation.
		Fish can be released upstream on the river in the spawning ground areas or transported to a hatchery, which is often the case for salmonids during the first stage of restoration programmes.
		Migrating fish may arrive either at the bank where the powerhouse is located or at the opposite bank where the spillway is discharging and it is therefore advisable to design two separate fish passes, each with one or more entrances.
	www.fao.org /docrep/004/y2785e/y2785e03.htm (9079 words)

	Fish
		A fish is a poikilothermic (cold-blooded) * water-dwelling vertebrate with gills.
		Taxonomically, fish are a paraphyletic group whose exact relationships are much debated; a common division is into the jawless fishes (class Agnatha, 75 species including lampreys and hagfish), the cartilaginous fishes (class Chondrichthyes, 800 species including sharks and rayss), with the remainder classed as bony fishes (class Osteichthyes).
		Fishes come in different sizes, from the 14-meter (45 ft) whale shark to a 8-mm (3/8 inch) long dwarf goby.
	www.brainyencyclopedia.com /encyclopedia/f/fi/fish.html (508 words)

	Fish Passage Through Culverts
		From the observed data and comparisons with the swimming performances of similar fish species as described in the literature, it was concluded that water velocities experienced in the Goose Creek culverts in 1977 presented a near-total barrier to the upstream migration of spring spawning fishes (Arctic grayling, northern pike and longnose suckers) in Goose Creek.
		Eight (8) of the stream crossings are complete barriers to anadromous fish migration of adult salmonids; thirteen (13) are partial barriers, twenty (20) are low flow barriers, and twenty (20) stream crossings had received barrier modifications from a number of different agencies.
		Fish migrating upstream during their annual 2-week spawning run were utilized for the culvert tests.
	www.stream.fs.fed.us /fishxing/biblio.html (13202 words)

	Maryland's Rivers and Streams - Restoration and Protection
		Fish migration barriers are anything in the stream that significantly interferes with the upstream movement of fish.
		Unimpeded fish passage is especially important for anadromous fish which live much of their lives in tidal waters but must move into non-tidal rivers and streams to spawn.
		With a fish blockage present and no natural way for a fish to repopulate the isolated stream section, the diversity of the fish community in an area will be reduced and the remaining biological community may be out of natural balance.
	www.dnr.state.md.us /streams/res_protect/fish_barrier.html (423 words)

	Fish migration (Site not responding. Last check: 2007-10-22)
		The best-known anadromous fish are salmon which hatch in small freshwater streams down to the sea and live there several years then return to the same where they were hatched spawn and die thereafter.
		The most remarkable catadromous fish are freshwater eels of genus Anguilla whose larvae drift in the Sargasso Sea sometimes for months or years before the Atlantic on the way to their streams.
		Freshwater fish migrations are usually shorter typically lake to stream or vice versa for purposes.
	www.freeglossary.com /Anadromous (496 words)

	Ladywildlife's Fish Migration Page
		Fish migrate down river and across the sea to reach their feeding grounds.
		Fish that migrate from fresh water to salt water must adapt to the change.
		Their migration carried them 3,700 miles from the coasts of Europe to the Sargasso Sea, a region of calm water in the North Atlantic northeast of the islands of the West Indies.
	ladywildlife.com /animal/fishmigration.html (1058 words)

	Fish migration (Site not responding. Last check: 2007-10-22)
		Many types of fish undertake migrations on a regular basis, on time scales ranging from daily to annual, and with distances ranging from a few meters to thousands ofkilometers.
		The best-known anadromous fish are salmon, which hatch in small freshwater streams,go down to the sea and live there for several years, then return to the same streams where they were hatched, spawn, and dieshortly thereafter.
		The most remarkable catadromous fish are freshwater eels of genus Anguilla, whose larvae drift in the Sargasso Sea, sometimes for months or years, before recrossing the Atlantic on the way to their originalstreams.
	www.therfcc.org /fish-migration-76920.html (268 words)

	[No title] (Site not responding. Last check: 2007-10-22)
		Monitoring the effects of Pier 64/65 moorage development upon juvenile salmonid migration behavior and rates in Elliott Bay, during the summer of 1996 to determine if juveniles successfully negotiated and migrated past the facility through a fish opening and whether avian predators were concentrating within the facility as a result of its construction.
		Their observed migration pattern was the typical Green/Duwamish River migration from south to north.
		Chum were the most actively migrating fish found in schools between 25 and 300-500 ranging in size from 50 to 80mm.
	depts.washington.edu /newwsdot/pier6465.html (567 words)

	Fish migration - Encyclopedia.WorldSearch (Site not responding. Last check: 2007-10-22)
		Diadromy in Fishes: Migrations Between Freshwater and Marine Environments
		In a book first published in 1959 and now reissued in an anniversary edition, John Hay, the nature-writing laureate of Cape Cod, ponders one of the great curiosities of nature in those parts.
		The mystery in question is the annual migration of the alewife, a kind of herring that behaves in this...
	encyclopedia.worldsearch.com /anadromous.htm (408 words)

	Oceanodromous fish (from migration) -- Encyclopædia Britannica
		Oceanodromous fish, which occur widely throughout the world's oceans, live and migrate wholly in the sea.
		Long before people began to culture fishes, they were harvesting wild fishes from streams, lakes, and the oceans.
		The Chinese raised fishes as early as the 5th century BC.
	www.britannica.com /eb/article-48498?tocId=48498 (752 words)

	A Spoonplugging Trip with Buck Perry (Site not responding. Last check: 2007-10-22)
		This migration path may not always be straight, since the structure and the signposts the fish use may turn to the right or to the left.
		When a fish migration occurs, the fish move along these structures, near the bottom, as a group or school.
		If yearling fish are caught in the shallows, this usually means a movement is occurring, and larger fish should be at a reachable depth on structure in the near area.
	www.americaoutdoors.com /fishing/features/perry/struct_fig3_text.htm (411 words)

	Migration of Birds
		Lincoln's writing style effectively communicated the wonders of bird migration to a wide audience, both young and old, experienced observers of birds as well as the simply curious.
		I have made substantial changes, however, in sections dealing with the evolution of migration, stimulus for migration, orientation and navigation, and the influence of weather.
		I have relied heavily upon the bibliographies on migration research prepared by Stanley H. Anderson and Loren W. Ayers, University of Wyoming Fish and Wildlife Coop Unit and Thomas S. Litwin, as well as bibliography in Peterson's revision.
	www.npwrc.usgs.gov /resource/othrdata/migratio/migratio.htm (449 words)

	Program to restore fish migration
		GREEN RIVER -- Native Wyoming fish are going to find it easier to move through two creeks and a river on the Wind River Reservation thanks to a federal program that aims to restore fish migration by removing passage barriers.
		USFWS fish specialist Morgan Elmer said the overall goal of the program is to restore migration, historic spawning and rearing habitat for a variety of native fish species.
		Over the years, many of the dams were abandoned but remained in place, which blocked populations of fish and led to declines in fish numbers and in recreational fishing opportunities.
	www.casperstartribune.net /articles/2004/08/17/news/wyoming/a5b943b5e9b695b887256ef30001236a.txt (698 words)

	State Initiates Second Dam Removal Near Goldsboro to Help Fish Migration (Site not responding. Last check: 2007-10-22)
		The dam removal, according to state and federal fisheries officials, will improve the spawning opportunities for fish that migrate up inland waters before returning to the ocean.
		Fish species that will benefit from the removal of the Cherry Hospital Dam are American shad, striped bass, short-nosed sturgeon, Atlantic sturgeon, hickory shad and alewife.
		According to Mike Wicker of the U.S. Fish and Wildlife Service, "the removal of the Cherry Hospital dam, although not as major as removal of the Quaker Neck Dam, is another step to improve the migration abilities of fish that come inland to spawn."
	www.enr.state.nc.us /newsrels/damdown.htm (524 words)

	Fish (from migration) -- Encyclopædia Britannica
		Many species of fish wander annually through a particular area of the ocean.
		Young fish usually leave the spawning grounds for areas where they develop into juveniles, before joining the adult stock at the feeding grounds.
		More results on "Fish (from migration)" when you join.
	www.britannica.com /eb/article-48497?tocId=48497 (741 words)

	New ladder helps fish ... (Site not responding. Last check: 2007-10-22)
		A new fish ladder is allowing chinook to zip past the Butte Creek Mill’s concrete diversion, which has blocked or slowed the upstream swimming of chinook and other salmon species since the 1880s.
		The $250,000 project was overseen by the Rogue Basin Fish Access Team, a group of agency officials and other volunteers working to remove barriers to migrating salmon.
		The old concrete fish ladder, at the edge of Eagle Point’s city limits, was difficult for migrating chinook to find.
	www.mailtribune.com /archive/2005/1015/local/stories/06local.htm (688 words)

	Biological Invasions: Consequences for Parasites, Pathogens, Emerging Diseases, and Fisheries in the Marine Environment.
		Various spatial and temporal models of fish migration are used in the analyses of fish behaviour and their implications for fisheries management.
		It is generally recognised that fishery management decisions often give less consideration to fish migration.
		This paper presents a framework for analysing fish migration using a predator-prey system in which the model parameters vary over time.
	www.asfb.org.au /pubs/2003/2003nz-75.htm (231 words)

	Science News: Earful of data hints at ancient fish migration.... @ HighBeam Research (Site not responding. Last check: 2007-10-22)
		Small growths that developed in the ears of fish more than 65 million years ago are providing a wealth of information about the species' environment and lifestyle.
		The fish, Vorhisia vulpes, lived in a broad, shallow seaway that stretched from present-day Texas to the Arctic Ocean.
		Oxygen-isotope variations among otolith layers indicate that the fish set to sea when its otolith length reached 2 to 4 millimeters.
	www.highbeam.com /library/doc0.asp?DOCID=1G1:102696959&refid=holomed_1 (359 words)

	Database fish migration problems on priority water courses in the Flemish Community
		The main aim of this project is to provide clear and simple information through the Internet on 'Inventory of fish migration problems in Flanders'.
		The other objective is to make it possible for remarks and work done in relation to the problems are to be passed on to the main information system's administrators.
		These administrators must at the same time have the means to keep all the information about the migration problems up to date.
	www.hemmis.com /projects/fishmigration.htm (369 words)

	State to Take Down Second Dam Near Goldsboro to Help Fish Migration (Site not responding. Last check: 2007-10-22)
		The small earthen - steel dam -- 135-feet wide and seven feet high -- is on the grounds of Cherry Hospital outside of Goldsboro, just off N.C. The state’s Division of Water Resources (DWR) signed a $69,000 contract with R & W Construction Company of Jacksonville in April to remove the dam.
		According to Mike Wicker of the US Fish & Wildlife Service, “the removal of the Cherry Hospital dam, although not as major as removal of the Quaker Neck Dam, is another step to improve the migration abilities of fish that come inland to spawn.”
		The US Fish and Wildlife Foundation, the NC Division of Marine Fisheries, and the Coastal America organization have helped fund the removal of both dams.
	www.enr.state.nc.us /newsrels/cherry.htm (542 words)

	Welcome to the most informative, authoritative and user-friendly fishing portal on the web. (Site not responding. Last check: 2007-10-22)
		Whether you're employed in the fishing sector or a marketer who wants to reach these professionals, our site will help you get your job done.
		The Fishing industry is the commercial activity of fishing and producing fish and other seafood products.
		According to FAO statistics the total fish production in the world in 2001 was 130 million tonnes.
	www.americasfishingauthority.com (1832 words)

	BBL - Banding Bibliography (Site not responding. Last check: 2007-10-22)
		Cottaar, Fred Spring migration and trapping of pied wagtails in Kennemerduinen.
		Understanding Patterns in Dunlin Migration: Abstracts of talks given at a WSG Workshop on 1 November 1993, Ipswich.
		Migration, Dispersal and Nomadism: Papers From the Thematic Symposium of the Southern African Ornithological Society, 12-16 September, 1993, Langebaan, South Africa.
	www.pwrc.usgs.gov /bbl/resources/bibl/bandbib.htm (10529 words)

	Hawaii Pelagic Fish Migration
		This is a general guide and calendar for pelagic fish that migrate here in Hawaii.
		This represents the average, optimum time historically speaking for these specific species of fish.
		Text, graphics, images, and HTML code are protected by US and International Copyright Laws, and may not be copied, reprinted, published, translated, hosted, or otherwise distributed by any means without explicit permission.
	www.bluewaterhunter.com /education/education_fishmigration.html (69 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations (Site not responding. Last check: 2007-10-22)
		Energy Citations Database (ECD) Document #6126974 - Analysis of barriers to upstream fish migration.
		An investigation of the physical and biological conditions affecting fish passage success at culverts and waterfalls.
		Availability information may be found in the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or via the "Full-text Availability" link.
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=6126974 (112 words)

	Fish migration (Site not responding. Last check: 2007-10-22)
		* anadromous fish live in the sea mostly, breed in fresh water
		* catadromous fish live in fresh water, breed in sea
		* amphidromous fish move between fresh and salt water during some part of life cycle, but not for breeding
	en.mcfly.org /Fish_migration (271 words)

	DeFAZIO: House Aproves $1 Billion for Firefighting, Jobs in the Woods, Fish Migration (01213)
		Finally, the bill approved today includes $3 million for fish screens in the Northwest Power Planning Area.
		This program is a significant resource that helps landowners comply with irrigation diversion screening standards.
		Screens designed to function to current standards directly improve salmon survival by guiding migrating juvenile salmon and steelhead away from irrigation canals and safely on their route to the ocean.
	www.house.gov /defazio/061704EGRelease.shtml (495 words)

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