Fish Sampling in the Multnomah Channel Marsh Natural Area near Portland Oregon from 2014-03-24 to 2015-07-15

Metadata Updated: February 27, 2019

The Multnomah Channel Wetland Restoration Monitoring Project characterizes wetlands use by juvenile salmonids and other fishes in the Multnomah Channel Marsh Natural Area (MCMNA) and nearby habitats of the Columbia River estuary. The project is a collaborative program by federal, state, and municipal organizations evaluating the ecological effectiveness of floodplain restoration actions at the MCMNA on behalf of at-risk juvenile salmonids. The project uses a wide range of sampling methods to document fish, invertebrate prey, vegetation, and physical habitat conditions and to experimentally assess salmon performance. Sampling methods include: PIT arrays and remote detection systems to monitor salmon access, residency, and movements to and from the wetland; experimental net pens to compare salmon food and relative growth potential within different vegetation types; beach seines, traps, PIT detectors, electro-shockers, and other gear to monitor fish abundance and salmon stock composition; and benthic cores, insect fallout traps, emergent traps, and neuston nets to determine invertebrate prey composition, abundance, and transport from the wetland site. Fish samples are also collected along the main-stem estuary, Multnomah Channel, and other wetlands to investigate the effects of river flow and water elevation on fish access to the MCMNA. Invertebrate and fish stomach samples are analyzed at the main campus of Oregon State University (Corvallis, OR) and at the Oregon Department of Fish and Wildlife Corvallis Research Laboratory. Other activities, vessels, and sampling equipment are staged from the Pt. Adams Research Station in Hammond, OR.

Species abundance, length, weight, residence time data for juvenile salmon in main stem Columbia R, Multnomah Channel. Mark and recapture data.

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Metadata Date October 26, 2018
Metadata Created Date March 21, 2016
Metadata Updated Date February 27, 2019
Reference Date(s) October 22, 2018 (publication)
Frequency Of Update

Metadata Source

Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Date October 26, 2018
Metadata Created Date March 21, 2016
Metadata Updated Date February 27, 2019
Reference Date(s) October 22, 2018 (publication)
Responsible Party Northwest Fisheries Science Center (Point of Contact, Custodian)
Contact Email
Access Constraints Access Constraints: N/A |
Bbox East Long -123.9374
Bbox North Lat 46.2095
Bbox South Lat 46.1995
Bbox West Long -123.9474
Coupled Resource
Frequency Of Update
Guid gov.noaa.nmfs.inport:30848
Harvest Object Id c32f8ad9-bd8c-445a-9592-84084ac418a9
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
Metadata Language eng
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2014-02-01
Temporal Extent End 2016-06-15

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