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  • salmonids
  • A riverscape perspective of Pacific salmonids and aquatic habitats prior to large-scale dam removal in the Elwha River, Washington, USA. (noaa.gov)
  • Lampreys are extremely efficient anguilliform swimmers, well-designed for long-distance travel, although they are frequently characterized as poor swimmers when compared to salmonids. (usda.gov)
  • behavior
  • We observed the behavior of wild, adult brook trout and brown trout (alone and in combination) within study reaches that were manipulated to vary the level of acidity and CO₂. (usda.gov)
  • Bird DJ, Potter IC, Hardisty MW, Baker BI (1994) Morphology, body size and behavior of recently-metamorphosed sea lampreys, Petromyzon marinus , from the lower River Severn, and their relevance to the onset of parasitic feeding. (springer.com)
  • Fishes
  • Modern lampreys (Petromyzontiformes) are one of two lineages of surviving jawless fishes (agnathans), and are thus of critical importance to understanding the evolution of the vertebrates. (springer.com)
  • dams
  • October 10, 2007 Paul Wagner, FPAC Chairperson - Adult fish counts at Priest Rapids and Wanapum Dams. (fpc.org)
  • marine
  • That document cited high rates of marine mammal tooth and claw abrasions on fish examined at the lower Snake River's Lower Granite Dam adult trapping facility. (cbbulletin.com)
  • fisheries
  • All biological research associated with the Alaska finfish fisheries (except that being performed for the International North Pacific Fisheries Commission) is transferred from the Montlake Laboratory in Seattle to Juneau. (noaa.gov)
  • rivers
  • Adults of eels live in rivers in Europe and America but their larval stages live and grown in sea and migrate to reach rivers which may take one to two years. (iaszoology.com)
  • The adult eels that inhabit rivers are about a metre long, yellow in colour and spend 8-15 years feeding and growing. (iaszoology.com)
  • stages
  • Bird DJ, Potter IC (1981) Proximate body composition of the larval, metamorphosing and downstream migrant stages in the life cycle of the Southern Hemisphere lamprey, Geotria australis . (springer.com)
  • Adult (n = 24), metamorphosed (n = 247), transforming (n = 4), and ammocoete (n = 387) stages from both species were examined in 2001. (unt.edu)
  • life history
  • Because of their basal position, it is critical to understand when the extant lamprey life history evolved, and if such a life history was present in the last common ancestor of agnathans and gnathostomes. (springer.com)
  • Great Lakes
  • As she educates the public about issues affecting the Great Lakes, Domske frequently speaks to students, fishermen and boaters about how they can prevent water pollution and help stop the spread of Great Lakes invaders, such as the Asian carp, zebra mussels, quagga mussels and sea lampreys. (buffalo.edu)
  • Coast
  • Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Crescent City region of the Pacific coast area. (unt.edu)
  • No stripers over 100 pounds has been caught on the Pacific Coast. (ca.gov)
  • include
  • Booths will include hands-on science activities, wilderness skills, nature crafts, and games for children and adults alike. (daveknows.org)
  • Ocean
  • An oceanographer with the Honolulu Laboratory, Townsend Cromwell, discovers a major new ocean current, now named after him, in the tropical Pacific. (noaa.gov)
  • fresh water
  • Mature adults move grat distances and may enter fresh water in the fall and winter (Scott & Crossman, 1973).White sturgeon take a wide range of food, but about one-half of stomachs containing fish, especially eulachons ( Thaleichthys pacificus ), their main food item, and sculpins ( Cottus spp. (fao.org)
  • body
  • Each period required the dramatically different morphologies seen in modern lampreys, ultimately requiring a true metamorphosis to accommodate the large changes in the body plan and to maximize the efficiency of each life period. (springer.com)