Population data and references for the Salmon Population Summary (SPS) Database

After listing 27 Pacific salmon Evolutionarily Significant Units (ESUs) as

threatened or endangered under the Endangered Species Act, NMFS initiated a coast wide

process to develop recovery plans for these species. An important part of this process

was the creation of geographically based Technical Recovery Teams (TRTs) and recovery

areas (domains).

A group of Pacific salmon or steelhead trout that is (1) substantially

reproductively isolated from other conspecific units and (2) represents an important

component of the evolutionary legacy of the species.

A group of salmon populations that are geographically and genetically

cohesive. The MPG is a level of organization between demographically independent

populations and the ESU or DPS.

Name of population as people may commonly refer to it.

Name of the population as defined by NMFS: A group of fish of the same species

that spawns in a particular locality at a particular season and does not interbreed

substantially with fish from any other group.

The name of the genus that the population belongs to.

The name of the specie that the population belongs to.

Name of the River or drainage identifying or containing the

population.

The season of the year for the return of the population to its anadromous

waters. i.e. Spring, Summer, Winter or Fall

The earliest year that viable salmonid population statistics are reported for

this population.

The latest year that viable salmonid population statistics are reported for

this population.

The year that adults enter to the river to spawn.

The type-classification of this particular population viability

figure.

The Season of the Year represented by this viability figure for the

population.

The total number of fish returning to spawn in the data collection

year.

Comments or other helpful information about the observation of spawners in

this viability computation.

The fraction of the total spawners that are the progeny of naturally-spawning

fish.

A value between 0 and 1 that is the fraction of natural origin spawners.

Natural origin spawners are spawners whose parents spawned in the wild. The fracWild is

equal to one minus the fraction of first generation hatchery fish spawning in a given

year. If all hatchery fish are marked, this value is the fraction of unmarked fish

observed in a given year.

Comments or other information about the observed or estimated Hatchery

fraction of the fish in this viability computation.

The number of additional wild fish that would have returned to spawn in a

given year had there not been a catch (harvest).

The fraction of fish who are defined as having an age of 1 that returned to

spawn in a given year.

The fraction of fish who are defined as having an age of 2 that returned to

spawn in a given year.

The fraction of fish who are defined as having an age of 3 that returned to

spawn in a given year.

The fraction of fish who are defined as having an age of 4 that returned to

spawn in a given year.

The fraction of fish who are defined as having an age of 5 that returned to

spawn in a given year.

The fraction of fish who are defined as having an age of 6 that returned to

spawn in a given year.

The fraction of fish who are defined as having an age of 7 that returned to

spawn in a given year.

Proportion of catch composed of age-1 fish. Deprecated.

Proportion of catch composed of age-2 fish. Deprecated.

Proportion of catch composed of age-3 fish. Deprecated.

Proportion of catch composed of age-4 fish. Deprecated.

Proportion of catch composed of age-5 fish. Deprecated.

Proportion of catch composed of age-6 fish. Deprecated.

Proportion of catch composed of age-7 fish. Deprecated.

Regime is an index of environmental conditions (usually intended as a measure

of ocean survival) that should be entered as a decimal number centered on 1. It is used

as a multiplier to adjust recruitment to average environmental conditions. When

conditions are worse than average (regime < 1), recruits are adjusted upwards, when

they are better than average (regime > 1), recruits are adjusted

downwards.

Comments or other information giving further description of the population's

age or age-structure.

A web-link to any pertinent external document that relates to this population

and year.

A web-link to a second pertinent external document that relates to this

population and year.

Estimated total number of fish contributing to spawning in a particular year.

Includes both natural origin and hatchery origin returns, adults and jack age

classes.

Estimated number of natural origin (parents spawned in the wild) spawners

contributing to spawning in a particular year. Includes both adults and jacks of natural

origin.

Estimated number of adult spawners of natural origin in a particular

year.

If available, estimate of the relative proportion of hatchery returns to the

spawning ground that are jacks (i.e., age 3 fish for stream type chinook populations,

age 2 fish for ocean type chinook populations).

The estimated proportion of adult returns removed by harvest in a particular

run year. Assumes that all adult age classes are harvested at the same rate. Steelhead

and yearling type chinook estimates reflect in-river fisheries. Snake River Fall chinook

estimates also include an adjustment to incorporate an index of annual ocean

impacts.

Fish of natural origin removed from the returning run for use as hatchery

brood stock.

Total future adult returns produced from spawning in a particular brood year.

Expressed as returns to the spawning grounds. For chinook, adult brood year returns from

year n are calculated as the sum of age 4 returns in year (n+4), age 5 returns in year

(n+5) and age 6 returns in year (n+6).

Total brood year returns proportionally adjusted to reflect an average annual

smolt to adult return rate over a specified range of years. For Interior Columbia

analyses, the average SARs are generally calculated for outmigration years 1980 to the

most recent complete brood year (e.g., 2001).

Natural log of the ratio of returns to parent spawners. In the ICTRT analyses,

both terms are expressed as adults to the spawning grounds.

Natural log return/spawner proportionally adjusted to reflect an average

SAR.??? For Interior Columbia analyses, the average SARs are generally

The number of returning fish that were reared in a hatchery. Currently this

data is not provided.

Indicates how age was estimated for a group of fish. Currently this data is

not collected. Acceptable values: 1) If population-scale carcass sample size is = 20,

apply the Annual Population Age Structure. 2) Else, if population-scale carcass sample

size is = 19, apply the Annual Aggregate MPG Age Structure. 3) Else, if MPG-scale

carcass sample size is = 19, apply the Long-Term (i.e.19601997) Population Average Age

Structure.

Number of samples used in age structure determination.

Estimated number of natural origin (parents spawned in the wild) spawners

contributing to spawning in a particular year. Includes only adults of natural origin,

excluding jacks.

Agency, Tribe or other entity, or person responsible for these data that is

the best contact for questions that may arise about this data record.

The foreign key to pull in the Population Name for the source

database.

The recognized title for a piece of reference material.

The name of the author of a piece of reference material.

If the reference material is published, the four-digit year in which the

reference material was published.

If the reference material is published, the name of the publisher of the

reference material.

Any comments or other information about the reference material or its

publication or use.

The recognized title for a piece of reference material.

The name of the author of a piece of reference material.

If the reference material is published, the four-digit year in which the

reference material was published.

If the reference material is published, the name of the publisher of the

reference material.

Any comments or other information about the reference material or its

publication or use.

The recognized title for a piece of reference material.

The name of the author of a piece of reference material.

If the reference material is published, the four-digit year in which the

reference material was published.

If the reference material is published, the name of the publisher of the

reference material.

Any comments or other information about the reference material or its

publication or use.

The recognized title for a piece of reference material.

The name of the author of a piece of reference material.

If the reference material is published, the four-digit year in which the

reference material was published.

If the reference material is published, the name of the publisher of the

reference material.

Any comments or other information about the reference material or its

publication or use.