35557
Sampled Fish Snake River Chinook
Sampled Fish Snake River Chinook
Entity
Published / External
18138
Otolith output - Project to study alternative life history types of fall Chinook based on otoliths
Data Set
Planned
This table describes data associated with each Snake River fall chinook salmon collected from Lyons Ferry Hatchery in 2011.
Spreadsheet
Yes
PARR
This table describes data associated with each Snake River fall chinook salmon collected from Lyons Ferry Hatchery in 2011.
1
Species
VARCHAR2
No
No
Active
Fish species.
VARCHAR2
2
Collection date
DATE
No
No
Active
Date when fish was collected.
DATE
3
Collection location
VARCHAR2
No
No
Active
Location where fish was collected.
VARCHAR2
4
Fish ID
VARCHAR2
No
No
Active
Unique identifier for each fish that includes collection year.
VARCHAR2
5
Sex
VARCHAR2
No
No
Active
Male or female.
VARCHAR2
6
Fork Length
NUMBER
No
No
Active
Length of the fish from tip of snout to fork of tail. Units for values are millimeters.
NUMBER
millimeters
7
Otolith radius at Snake River exit
NUMBER
No
No
Active
Otolith radius was measured on the dorsal side of the otolith in the region perpendicular to the longest axis. Otolith radius at Snake River egress was measured at the point on the edge-to-core scan where 87Sr/86Sr ratio was between 0.70960 (upper and lower Snake River have a 87Sr/86Sr ratio of 0.709651 and 0.709746, respectively) and 0.70922 (the upper bound used to identify ocean entry). Units for values are microns.
NUMBER
microns
NA
8
Otolith radius at ocean entry
NUMBER
No
No
Active
Otolith radius was measured on the dorsal side of the otolith in the region perpendicular to the longest axis. Otolith radius at ocean entry was measured at the point on the edge-to-core scan where the 87Sr/86Sr ratio converged with the range of 0.70914-0.70922, which is centered on the global marine signature of 0.70918. Units for values are microns.
NUMBER
microns
NA
9
Otolith radius at 1st annulus
NUMBER
No
No
Active
Otolith radius was measured on the dorsal side of the otolith in the region perpendicular to the longest axis. Otolith radius was measured to the 1st annulus, which denotes the completion of an individuals first winter of growth. Units for values are microns.
NUMBER
microns
NA
10
Life history strategy
VARCHAR2
No
No
Active
An individual was classified as exhibiting the sub-yearling strategy if the otolith radius to the first annual mark was greater than the otolith radius at ocean entry. In other words, a fish was categorized as exhibiting a sub-yearling strategy if it was in the ocean before its first annulus formed. Alternatively, if the otolith radius to the first annual mark was less than or equal to the otolith radius at ocean entry then the fish was designated as exhibiting a yearling strategy. A sub-yearling migration strategy is when individuals migrate to the ocean a few months after their spring emergence (i.e., first feeding), while a yearling migration strategy is one in which juveniles remain in freshwater for an extended period (referred to as overwintering) prior to ocean entry the following spring.
VARCHAR2
11
Fork length at Snake River exit
NUMBER
No
No
Active
Fork length (mm) estimated from a relationship between fork length and otolith radius (FL=(0.1914 * otolith radius at Snake River exit) - 7.8467). Units for values are millimeters.
NUMBER
millimeters
NA
12
Fork length at ocean entry
NUMBER
No
No
Active
Fork length (mm) estimated from a relationship between fork length and otolith radius (FL=(0.1914 * otolith radius at ocean entry) - 7.8467). Units for values are millimeters.
NUMBER
millimeters
NA
13
Growth between Snake River exit and ocean entry
NUMBER
No
No
Active
The differences between fork length at Snake River exit and fork length at ocean entry. Units for values are millimeters.
NUMBER
millimeters
NA
14
Age
NUMBER
No
No
Active
Age based on scale analysis and provided by Lyons Ferry Hatchery. Units for values are year.
NUMBER
year
15
Hatch Yr
NUMBER
No
No
Active
Hatch year determined by the subtraction of Age from Collection year.
NUMBER
16
Natal Sr87/86
NUMBER
No
No
Active
The natal 87Sr/86Sr ratio was quantified as the first stable signature located between an otolith radius of 110m and 250m from the otolith core.
NUMBER
17
Rearing Sr87/86
NUMBER
No
No
Active
The rearing 87Sr/86Sr ratio was determined as the first stable signature located between an otolith radius of 250m and 500m from the otolith core.
NUMBER
18
Over-wintering Sr87/86
NUMBER
No
No
Active
Over-wintering Sr87/Sr86 ratio was quantified as the first stable signature between an otolith radius between 500m and the radius from the core corresponding to when a fish exited the Snake River.
NUMBER
NA
gov.noaa.nmfs.inport:35557
Jeffrey Cowen
2016-11-04T19:22:03
SysAdmin InPortAdmin
2022-08-09T17:11:17
2018-02-27
Northwest Fisheries Science Center
NWFSC
2725 Montlake Boulevard East
Seattle
WA
98112
USA
206-860-3200
http://www.nwfsc.noaa.gov
1001
Public
No
2018-02-27
1 Year
2019-02-27