Residualism: The paradox of steelhead recovery

Table of contents

Residualism: The paradox of steelhead recovery

Mileposts

Snake River Basin genetic monitoring study area

Little Sheep Creek steelhead

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Slide 10

Steelhead returning to Little Sheep Creek

Mendelian inheritance

Slide 13

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Resident O. mykiss

Reproductive success by origin

Reproductive success by cross

Distribution of matings among sites

Slide 20

Little Sheep steelhead results

Next Steps

Slide 23

NE Oregon steelhead population genetics—LSRCP study

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Genetic relationships among NE Oregon steelhead populations

LSRCP steelhead genetics project

Slide 31

Parr versus adult sample

Study 2: Copper River Steelhead/RBT

Wallowa Hatchery and the Deschutes R.

Slide 35

Only 3 other non-significant pairwise comparisons

Genetic diversity compared to inbreeding levels

O. mykiss take-home message (for the time being)

Slide 39

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Reproductive Contribution by Rearing Class and Sex

Juveniles Resulting from Various Mating Classes

Slide 43

Author: Paul Moran

Further information:
NW Fisheries Science Center

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