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semi-anadromous — incomplete migration between fresh and salt water. The fish spawns and overwinters in fresh waters but feeds in large, brackish estuarine areas, the plumes of fresh water mixed with saline sea water that are rich in nutrients and important… … Dictionary of ichthyology
Dam removal — Teton Dam Failure Dam removal is the process of removing out dated, dangerous, or ecologically damaging dams from river systems. There are thousands of out dated dams in the United States that were built in the 18th and 19th centuries, as well as … Wikipedia
National Oceanic and Atmospheric Administration Fisheries Office for Law Enforcement — National Oceanic and Atmospheric Administration Office of Law Enforcement Abbreviation NOAA OLE NOAA Marine Law Enforcement … Wikipedia
Olympic National Park — IUCN Category II (National Park) … Wikipedia
Title 16 of the United States Code — outlines the role of conservation in the United States Code.* National Parks, Military Parks, Monuments, and Seashores * Historic Sites, Buildings, Objects, and Antiquities * Archaeological Resources Protection * National Forests * Forests;… … Wikipedia
Brown trout — Taxobox name = Brown Trout status = LR/lc status system = IUCN2.3 regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Salmoniformes familia = Salmonidae genus = Salmo species = S. trutta binomial = Salmo trutta binomial authority … Wikipedia
salmoniform — ▪ fish Introduction any member of the order Salmoniformes, a diverse and complex group of fishes. The order consists of about 1,000 species in the freshwaters and in the oceans of the world. Included are the familiar trout, salmon, and pike … Universalium
commercial fishing — Introduction the taking of fish and other seafood and resources from oceans, rivers, and lakes for the purpose of marketing them. Fishing is one of the oldest employments of humankind. Ancient heaps of discarded mollusk shells (shell… … Universalium
Fisheries glossary — This is a glossary of terms used in fisheries, fisheries management and fisheries science. A * Abundance is a measure of how many fish are in a population or a fishing ground. See relative abundance and absolute abundance.* Acoustic survey a… … Wikipedia
Pacific mountain system — ▪ mountains, North America Introduction series of mountain ranges that stretches along the Pacific coast (Coast Ranges) of North America from northern British Columbia (Canada) to northwestern Mexico. They run for some 4,500 miles (7,250… … Universalium
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
