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NOAA National Marine Fisheries Service

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These GIS data contain stream reaches that were identified as habitat areas for the Lower Columbia River Chinook Salmon (CKLCR) and Upper Willamette River Chinook Salmon (CKUWR) Evolutionarily Significant Unit (ESU).WOPR: (Western Oregon Plan Revision) PRMP: (Proposed Resource Management Plan) Chinook Salmon Columbia River Willamete River CHART: (Critical Habitat Analytical Review Teams) PCE: (Primary Constituent Elements) This data is a PRMP release version of the data fsh_aa_a_chinnok_chart_arc. These data were used in the critical habitat analysis conducted by National Marine Fisheries Service's Critical Habitat Analytical Review Teams. The analysis was conducted as part of the rule making process for critical...
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These GIS data contain stream reaches that were identified as habitat areas for the Pacific Coho Salmon Evolutionarily Significant Unit (ESU).WOPR (Western Oregon Plan Revision) PRMP (Proposed Resource Management Plan) Coho Salmon Pacific Ocean CHART (Critical Habitat Analytical Review Teams) PCE (Primary Constituent Elements) This data is a PRMP release version of the data fsh_aa_a_coho_chart_arc. These data were used in the critical habitat analysis conducted by National Marine Fisheries Service's Critical Habitat Analytical Review Teams. The analysis was conducted as part of the rule making process for critical habitat. Critical habitat for Pacific Coho salmon is defined in National Marine Fisheries Service's...
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We evaluated light-based geolocation estimates from pop-up satellite tags in high latitudes because some of the largest fisheries in the world are in areas where this technique has not been assessed. Daily longitude and latitude were estimated by using two Wildlife Computers software programs: 1) Argos Message Processor (AMP), which summarizes light intensity data transmitted to satellites, and 2) Time Series Processor (TSP), which uses more detailed data obtained from retrieved tags. Three experiments were conducted in the northern Gulf of Alaska using tags placed on 1) Pacific halibut in outdoor aquaria, 2) a fixed mooring line at various depths and 3) wild Pacific halibut. TSP performed better than AMP because...
Categories: Publication; Types: Citation; Tags: Fishery Bulletin
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Recent research demonstrated significantly lower growth and survival of Bristol Bay sockeye salmon (Oncorhynchus nerka) during odd-numbered years of their second or third years at sea (1975, 1977, etc.), a trend that was opposite that of Asian pink salmon (O. gorbuscha) abundance. Here we evaluated seasonal growth trends of Kvichak and Egegik river sockeye salmon (Bristol Bay stocks) during even- and odd-numbered years at sea by measuring scale circuli increments within each growth zone of each major salmon age group between 1955 and 2000. First year scale growth was not significantly different between odd- and even-numbered years, but peak growth of age-2. smolts was significantly higher than age-1 smolts. Total...
Categories: Publication; Types: Citation; Tags: Fishery Bulletin
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The National Marine Fisheries Service (NMFS), the U.S. Geological Survey (USGS) and the U.S. Fish and Wildlife Service (USFWS) have collaborated to develop passage design guidance for use by engineers and other restoration practitioners considering and designing nature‐like fishways (NLFs). The primary purpose of these guidelines is to provide a summary of existing fish swimming and leaping performance data and the best available scientific information on safe, timely and effective passage for 14 diadromous fish species using Atlantic Coast rivers and streams. These guidelines apply to passage sites where complete barrier removal is not possible. This technical memorandum presents seven key physical design parameters...
Categories: Publication; Types: Citation
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