2017 May 2--Electrofishing in an Unnamed Tributary to Rock Creek

Evan Leonetti, STEP Biologist for the Douglas District, Oregon Department of Fish and Wildlife (ODFW), gave my Field Methods class and I some great training on electrofishing for fish and other aquatic vertebrates. Evan said the stream we visited has been called Woodcock Creek by some agency folks, so perhaps that will become its name. We parked near the junction of BLM Roads 25-2-15.0 and 25-2-16.0, and worked our way slowly upstream. The stream apparently has spawning Steelhead and Coho Salmon in season, as we found smolts of both in our efforts. We also shocked and netted a large neotenic Coastal Giant Salamander! I photographed most of the aquatic vertebrates, which also included a few sculpin (Cottus sp.). One tiny Dunn's Salamander was uncovered at the stream edge. I didn't have time to pay attention to the wildflowers, but did photograph one that I had been wondering if I might see some time.

由使用者 umpquamatt umpquamatt2017年05月07日 22:46 所貼文

觀察

照片/聲音

什麼

大花仙女竹 (Prosartes smithii)

觀察者

umpquamatt

日期

5月 2, 2017 09:36 PDT

照片/聲音

觀察者

umpquamatt

日期

5月 2017

描述

Among rocks 50 cm from stream edge. I ID'd this little salamander as P. dunni vs P. vehiculum based on (1) the dull mustardy dorsal strip color, (2) the dull mottled appearance vs a more solid color stripe, (3) mottling toward the tip of the tail, and (4) streamside (within scoured channel) location.

照片/聲音

什麼

虹鱒 (Oncorhynchus mykiss)

觀察者

umpquamatt

日期

5月 2, 2017 10:23 PDT

描述

One-year old steelhead. Obtained by electrofishing w/ODFW. Maxillary shorter than cutthroat.

照片/聲音

什麼

銀鮭 (Oncorhynchus kisutch)

觀察者

umpquamatt

日期

5月 2, 2017 10:26 PDT

描述

No spots in fins, long first rays in dorsal and pelvic fins.

照片/聲音

什麼

杜父魚屬 ( Cottus)

觀察者

umpquamatt

日期

5月 2, 2017 10:27 PDT

描述

Small sculpin.

照片/聲音

觀察者

umpquamatt

日期

5月 2, 2017 10:51 PDT

描述

Large neotene.

照片/聲音

什麼

虹鱒 (Oncorhynchus mykiss)

觀察者

umpquamatt

日期

5月 2, 2017 10:58 PDT

描述

1 yr old steelhead. Maxillary shorter than cutthroat.

照片/聲音

什麼

銀鮭 (Oncorhynchus kisutch)

觀察者

umpquamatt

日期

5月 2, 2017 11:00 PDT

描述

Obtained during ODFW electroshocking effort. Fins without spots and long first ray in dorsal and pelvic fins.

照片/聲音

什麼

杜父魚屬 ( Cottus)

觀察者

umpquamatt

日期

5月 2, 2017 10:51 PDT

描述

Those w/wide pectoral fins in bucket.

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