35557 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 https://www.nwfsc.noaa.gov 1001 Public No 2018-02-27 1 Year 2019-02-27