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Short Citation:
Northwest Fisheries Science Center, 2022: Master Dataset for Elwha Carcass Addition Experiment - Elwha River salmon carcass addition experiment, https://www.fisheries.noaa.gov/inport/item/20550.

Item Identification

Title: Master Dataset for Elwha Carcass Addition Experiment - Elwha River salmon carcass addition experiment
Short Name: Biota (Elwha River salmon carcass addition experiment)
Status: Completed
Creation Date: 2007-08-15
Publication Date: 2018-10-01
Abstract:

Dam removal and other fish-barrier removal projects in western North America are assumed to boost freshwater productivity via the transport of marine-derived nutrients from recolonizing Pacific salmon (Oncorhynchus spp). In anticipation of the removal of two hydroelectric dams on the Elwha River in Washington State, we tested this hypothesis with a salmon carcass addition experiment. Our study was designed to examine how background nutrient dynamics and benthic foodwebs vary seasonally, and how these features respond to salmon subsidies. We conducted our experiment in six side channels of the Elwha River, each with a spatially paired reference and treatment reach. Each reach was sampled on multiple occasions from October 2007 to August 2008, before and after carcass placement. We evaluated nutrient limitation status, measured water chemistry, periphyton, benthic invertebrates, and juvenile rainbow trout (O. mykiss) response, and traced salmon-derived nutrient uptake using stable isotopes. Outside of winter, algal accrual was limited by both nitrogen and phosphorous and remained so even in the presence of salmon carcasses. One month after salmon addition, dissolved inorganic nitrogen levels doubled in treatment reaches. Two months after addition, benthic algal accrual was significantly elevated. We detected no changes in invertebrate or fish metrics, with the exception of 15N enrichment. Natural seasonal variability was greater than salmon effects for the majority of our response metrics. Yet seasonality and synchronicity of nutrient supply and demand are often overlooked in nutrient enhancement studies. Timing and magnitude of salmon-derived nitrogen uptake suggest that uptake of dissolved nutrients were favored over direct consumption of carcasses. The highest proportion of salmon-derived nitrogen was incorporated by herbivores (18–30%) and peaked 1–2 months after carcass addition. Peak nitrogen enrichment in predators (11–16%) occurred 2–3 months after addition. All taxa returned to background d15N levels by 7 months. Since this study was conducted, both dams on the Elwha River were removed over 2011-2014 to open over 90% of the basin to anadromous fishes. We anticipate that as the full portfolio of salmon species expand through the basin, nutrient supply and demand will become more balanced and positive feedback loops of reciprocal nutrient transfer reinforced.

All datasets related to Elwha River carcass addition experiment. Includes physical habitat, chemical, and biological data.

Purpose:

Raw/field data, Laboratory data

Notes:

Loaded by FGDC Metadata Uploader, batch 4675, 09-05-2013 15:49

Supplemental Information:

Subject to Public Access to Research Results (PARR): Yes

Presentation: Transfer of marine-derived salmon nutrients to freshwater food webs: predicted response of primary and secondary producers to dam removal on the Elwha River (Washington state), USA. Talk given at the 5th World Fisheries Congress, Yokohoma, Japan

Presentation: Effects of salmon carcasses on riverine food webs in experimental field study on the Elwha River. Talk given at 81st Annual Meeting of the Northwest Scientific Association, Seattle, WA

Keywords

Theme Keywords

Thesaurus Keyword
UNCONTROLLED
None aquatic invertebrate
None dam removal
None effectiveness monitoring
None Elwha River
None floodplain
None food web
None habitat
None marine derived nutrients
None nutrient enrichment
None periphyton
None salmon
None side channel
None stable isotopes

Spatial Keywords

Thesaurus Keyword
UNCONTROLLED
None Elwha River

Instrument Keywords

Thesaurus Keyword
UNCONTROLLED
None Instrument Not Applicable

Platform Keywords

Thesaurus Keyword
UNCONTROLLED
None Animal and Plant Collection Device
None Bottom Sampler

Physical Location

Organization: Northwest Fisheries Science Center
City: Seattle
State/Province: WA
Country: USA

Data Set Information

Data Set Scope Code: Data Set
Data Set Type: Spreadsheet
Data Presentation Form: Table (digital)

Support Roles

Data Steward

CC ID: 851148
Date Effective From: 2015-10-01
Date Effective To:
Contact (Person): Morley, Sarah
Address: 2725 Montlake Boulevard East
Seattle, WA 98112
Email Address: Sarah.Morley@noaa.gov
Phone: 206-860-6780

Distributor

CC ID: 851149
Date Effective From: 2015-10-01
Date Effective To:
Contact (Organization): Northwest Fisheries Science Center (NWFSC)
Address: 2725 Montlake Boulevard East
Seattle, WA 98112
USA
Email Address: nmfs.nwfsc.metadata@noaa.gov
Phone: 206-860-3200
URL: NWFSC Home

Metadata Contact

CC ID: 851147
Date Effective From: 2015-10-01
Date Effective To:
Contact (Organization): Northwest Fisheries Science Center (NWFSC)
Address: 2725 Montlake Boulevard East
Seattle, WA 98112
USA
Email Address: nmfs.nwfsc.metadata@noaa.gov
Phone: 206-860-3200
URL: NWFSC Home

Originator

CC ID: 851151
Date Effective From: 2015-10-01
Date Effective To:
Contact (Person): Morley, Sarah
Address: 2725 Montlake Boulevard East
Seattle, WA 98112
Email Address: Sarah.Morley@noaa.gov
Phone: 206-860-6780

Point of Contact

CC ID: 851150
Date Effective From: 2015-10-01
Date Effective To:
Contact (Person): Morley, Sarah
Address: 2725 Montlake Boulevard East
Seattle, WA 98112
Email Address: Sarah.Morley@noaa.gov
Phone: 206-860-6780

Extents

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 851157
W° Bound: -123.7579
E° Bound: -123.3293
N° Bound: 48.1502
S° Bound: 47.6658
Description

Elwha River: Lower and middle Elwha River basin

Extent Group 1 / Time Frame 1

CC ID: 851156
Time Frame Type: Range
Start: 2007-08-01
End: 2008-08-30

Access Information

Security Class: Unclassified
Data Access Procedure:

At this time, contact the Data Manager for information on obtaining access to this data set. In the near future, the NWFSC will strive to provide all non-sensitive data resources as a web service in order to meet the NOAA Data Access Policy Directive (https://nosc.noaa.gov/EDMC/PD.DA.php).

Data Access Constraints:

NA

Distribution Information

Distribution 1

CC ID: 851153
Start Date: 2018-10-01
End Date: Present
Download URL: https://www.webapps.nwfsc.noaa.gov/apex/parr/elwha_carcass_addition/data/page/
Distributor: Northwest Fisheries Science Center (NWFSC) (2015-10-01 - Present)
File Name: Elwha Carcass Addition (RESTful)
Description:

Master table of all datasets collected as part of Elwha River carcass addition experiment.

Distribution 2

CC ID: 851152
Start Date: 2018-10-01
End Date: Present
Download URL: https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/tables/table/elwha_carcass_addition
Distributor: Northwest Fisheries Science Center (NWFSC) (2015-10-01 - Present)
File Name: Elwha Carcass Addition
Description:

Master table of all datasets collected as part of Elwha River carcass addition experiment.

URLs

URL 1

CC ID: 851154
URL: https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/datasets/dataset/2045
Name: Master Dataset for Elwha Carcass Addition Experiment
URL Type:
Online Resource
File Resource Format: Web site
Description:

NWFSC Dataset Information page. All datasets related to Elwha River carcass addition experiment. Includes physical habitat, chemical, and biological data.

Technical Environment

Description:

Spreadsheet

Data Quality

Accuracy:

Medium

Quality Control Procedures Employed:

All laboratory samples checked against blanks and duplicates. These data were collected and processed in accordance with established protocols and best practices under the direction of the project’s Principal Investigator. Contact the dataset Data Manager for full QA/QC methodology.

Data Management

Have Resources for Management of these Data Been Identified?: No
Approximate Percentage of Budget for these Data Devoted to Data Management: 5
Do these Data Comply with the Data Access Directive?: No
Is Access to the Data Limited Based on an Approved Waiver?: No
If Distributor (Data Hosting Service) is Needed, Please Indicate: Yes
Approximate Delay Between Data Collection and Dissemination: 0 days
If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed:

No Delay

Actual or Planned Long-Term Data Archive Location: NCEI-MD
Approximate Delay Between Data Collection and Archiving: 14
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?:

The Northwest Fisheries Science Center facilitates backup and recovery of all data and IT components which are managed by IT Operations through the capture of static (point-in-time) backup data to physical media. Once data is captured to physical media (every 1-3 days), a duplicate is made and routinely (weekly) transported to an offsite archive facility where it is maintained throughout the data's applicable life-cycle.

Lineage

Lineage Statement:

Invertebrates identified and enumerated under microscopy, chlorophyll samples analyzed by fluormeter, isotope samples analyzed in mass spec

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity Elwha Carcass Addition

Catalog Details

Catalog Item ID: 20550
GUID: gov.noaa.nmfs.inport:20550
Metadata Record Created By: Robert Marsicek
Metadata Record Created: 2013-09-05 15:49+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2019-06-04 13:14+0000
Metadata Record Published: 2019-06-04
Owner Org: NWFSC
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Next Review Date: 2020-06-04