Campbell Slough. Franz Lake

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1 35 3 Temperature (oc) Temperature (oc) April May June July August Figure x. Month water temperature at fish sampling events at and.

2 1% 9% other sucker 8% shad 7% 6% sculpin sp. pumpkinseed peamouth 5% 4% 3% pikeminnow killifish crappie chub 2% 1% bullhead sp. smallmouth bass yellow perch % (n=1128) (n=1781) 27 (n=981) (n=1755) (n=1881) chiselmouth stickleback carp sp. Figure x. Proportions of fish species in catch at and

3 1% 9% 8% 7% 6% 5% 4% 3% 2% 1% Upper Col Spr West Cascades Spr Upper Willamette Spr Deschutes Fall Snake Fall Upper Columbia SuF Spring Creek Fall West Cascades Fall % Franz Franz Lake Lake Hatchery Wild (n=4) (n=36) 27 Hatchery (n=33) 27 Wild (n=44) Hatchery (n=34) Wild (n=4) Figure x. Proportions of juvenile Chinook salmon belonging to different genetic groups at and.

4 1% 9% 8% 7% 6% 5% 4% 3% 2% steelhead trout cutthroat trout hatchery chinook wild chinook hatchery coho wild coho wild chum 1% % 27 Sloiugh Figure x. Proportions of salmonid species in catch at and.

5 12 CPUE (per 1 m2) April May June July 27 Figure x. Catch per unit effort (CPUE) for Chinook salmon at and. Both marked and unmarked Chinook are included in counts.

6 CPUE (per 1 sq m) Reach F ( ) salmonids stickleback carp chiselmouth killifish yellow perch other species 1 5 April May June July August Can we add similar map for?

7 Chinook CPUE (per 1 sq m) April May June July August Chinook 8 7 CPUE (per 1 sq m) April May June July August

8 1 9 Unmarked Chinook Length in mm (+ SD) April May June 27 Figure x. Average length by month and year for unmarked, presumably wild, and mark hatchery juvenile Chinook salmon from and.

9 12 1 unmarked Chinook Weight in g (+SD) April May June marked Chinook Weight in g (+ SD) April May June 27

10 1.4 unmarked Chinook Condition factor (+SD) April May June marked Chinook 1.2 Condition factor (+SD) April May June.2 27 Figure x. Mean CF in juvenile Chinook salmon at and

11 1% 9% 8% 7% 6% 5% 4% 3% 2% 1% % Franz Lake April Franz Lake May Franz Lake May April May May June Trombidiforme Trichoptera Thysanoptera Other Insect Egg Hymenoptera Hemptera Ephemeroptera Diptera Collembola Coleoptera Cladocera Araneae Amphipods Figure X. Proportions of invertebrates in stomach contents samples of juvnile Chinook salmon from and.

12 1% 9% 8% 7% 6% 5% 4% 3% 2% 1% % OW April Franz Lake OW May Franz Lake OW May Franz Lake OW April OW May OW May OW June Other Trombidiformes Poecilostomatoida Ostracoda Oligochaeta Nematoda Hydrozoa Diptera Cyclopoida Coleoptera Cladocera Calanoida Basommatophora

13 1% 9% 8% 7% 6% 5% 4% 3% 2% 1% % EV April Franz Lake EV May EV May EV May EV May EV June Other Trombidiformes Poecilostomatoida Ostracoda Oligochaeta Odonata Nematoda Hemiptera Diptera Cyclopoida Coleoptera Cladocera Basommatophora Amphipoda

14 growth rate (mm/day) Daily 14d Daily 21 d 27 Figure x. estimated growth rate, as determined from otolith analysis, in juvenile Chinook salmon from and slough.

15 Sum PCBs (ng/g wet wt) d cd a a ab bc April (n=1) May (n=1) May 27 (n=7) Jun 27 (n=1) Apr (n=1) May (n=11) Sum DDTs (ng/g wet wt) b ab a a ab a April (n=1) May (n=1) May 27 (n=7) Jun 27 (n=1) Apr (n=1) May (n=11) Sum PBDEs (ng/g wet wt) b ab a ab a a April (n=1) May (n=2) May 27 (n=7) Jun 27 (n=1) Apr (n=1) May (n=11) Figure x. Concentrations of PCBs, DDTs, and PBDEs in whole bodies of juvenile Chinook salmon from (blue) and (red).

16 POPs (ng/g wet wt) DDTs PBDEs PCBs 1 Total AHs (ng/g wet wt) Figure x. Concentrations of total aromatic hydrocarbons (TAHs) and persistent organic pollutants (POPs) in stomach contents of juvenile Chinook salmon from Capbell, as compared to other Columbia River sites. Samples were collected in 27.

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