Ballard Locks Pit Tag Data
Northwest Fisheries Science Center
Entity
(ENT)
| ID: 37565
| Published / External
Created: 2017-04-03
|
Last Modified: 2022-08-09
Data Set (DS) | ID: 17860
ID: 37565
Entity (ENT)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | Ballard Locks Pit Tag Data |
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Short Name | Ballard Locks Pit Tag Data |
* Status | Planned |
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• Publication Date | |
* » Abstract |
Understanding the factors influencing the success of juvenile Pacific salmon Oncorhynchus spp. in newly colonized habitats is essential to their recovery in large areas across theWest Coast of the United States and Canada.We studied biotic and abiotic factors associated with survival during the early stages of colonization and population establishment of juvenile coho salmon O. kisutch in Rock Creek, a tributary of the upper Cedar River in the LakeWashington basin of Puget Sound, Washington. The stream was occupied by resident fishes (e.g., rainbow trout O. mykiss, cutthroat trout O. clarkii, speckled dace Rhinichthys osculus, and several sculpins Cottus spp.), but adult coho salmon and other anadromous fishes had been excluded by a dam from 1901 until fish ladder installation in 2003. We defined logistic regression models and used an information-theoretic approach to predict apparent survival with various combinations of individual fish condition, location competition, and local habitat quality. The best-approximating models included measures of brood year, body size, habitat, and migration timing. Survival was positively associated with body size and habitat quality and negatively associated with competition. Survival from late summer to smolt migration varied among years (mean SD = 27 11%) and was significantly higher within Rock Creek (73 11%) than during seaward migration in the Cedar River and Lake Washington (38 14%). Juvenile coho salmon established a population and outnumbered resident salmonid species by 40% in the lower 2 km of Rock Creek within 5 years of colonization. Overall, the results revealed the linkage between the colonization success of juvenile coho salmon and the biotic features and habitat quality in a newly accessible environment during the stream-rearing phase of their life history. DOI: 10.1080/00028487.2011.587752. |
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Entity Information
Entity Type | Spreadsheet |
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Active Version? | Y |
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Schema Name | PARR |
» Description |
Understanding the factors influencing the success of juvenile Pacific salmon Oncorhynchus spp. in newly colonized habitats is essential to their recovery in large areas across theWest Coast of the United States and Canada.We studied biotic and abiotic factors associated with survival during the early stages of colonization and population establishment of juvenile coho salmon O. kisutch in Rock Creek, a tributary of the upper Cedar River in the LakeWashington basin of Puget Sound, Washington. The stream was occupied by resident fishes (e.g., rainbow trout O. mykiss, cutthroat trout O. clarkii, speckled dace Rhinichthys osculus, and several sculpins Cottus spp.), but adult coho salmon and other anadromous fishes had been excluded by a dam from 1901 until fish ladder installation in 2003. We defined logistic regression models and used an information-theoretic approach to predict apparent survival with various combinations of individual fish condition, location competition, and local habitat quality. The best-approximating models included measures of brood year, body size, habitat, and migration timing. Survival was positively associated with body size and habitat quality and negatively associated with competition. Survival from late summer to smolt migration varied among years (mean SD = 27 11%) and was significantly higher within Rock Creek (73 11%) than during seaward migration in the Cedar River and Lake Washington (38 14%). Juvenile coho salmon established a population and outnumbered resident salmonid species by 40% in the lower 2 km of Rock Creek within 5 years of colonization. Overall, the results revealed the linkage between the colonization success of juvenile coho salmon and the biotic features and habitat quality in a newly accessible environment during the stream-rearing phase of their life history. DOI: 10.1080/00028487.2011.587752. |
Change Summary |
Data Attributes
Attribute Summary
Score | Req'd? | PKey? | » Name | Data Storage Type | Description |
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100 | Yes | No | Location | VARCHAR2 | Location of the PIT tag array to track outmigrating juvenile salmonids. |
100 | Yes | No | Antenna | VARCHAR2 | An array of passive antennas which fish can swim through to determine direction of travel. |
100 | Yes | No | Date | DATE | Date and time at which PIT tagged fish went through antenna array. |
100 | Yes | No | PIT Code | VARCHAR2 | Alpha numeric code that identifies individual fish. |
Attribute Details
Attribute Name | Location |
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Seq. Order | 1 |
Data Storage Type | VARCHAR2 |
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Required | Yes |
Primary Key | No |
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Status | Active |
Description |
Location of the PIT tag array to track outmigrating juvenile salmonids. |
General Data Type | VARCHAR2 |
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Attribute Name | Antenna |
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Seq. Order | 2 |
Data Storage Type | VARCHAR2 |
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Required | Yes |
Primary Key | No |
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Status | Active |
Description |
An array of passive antennas which fish can swim through to determine direction of travel. |
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Attribute Name | Date |
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Seq. Order | 3 |
Data Storage Type | DATE |
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Required | Yes |
Primary Key | No |
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Status | Active |
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Date and time at which PIT tagged fish went through antenna array. |
General Data Type | DATE |
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Attribute Name | PIT Code |
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Seq. Order | 4 |
Data Storage Type | VARCHAR2 |
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Required | Yes |
Primary Key | No |
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Status | Active |
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Alpha numeric code that identifies individual fish. |
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Catalog Details
Catalog Item ID | 37565 |
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Metadata Record Created By | Jeffrey W Cowen |
Metadata Record Created | 2017-04-03 14:18+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2022-08-09 17:11+0000 |
Metadata Record Published | 2018-02-27 |
Owner Org | NWFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2018-02-27 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2019-02-27 |
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