Commercial
 

Columbia River Test Fishing

2018 Fall Pound Net Trap Test Fishery

Pound net trap in the Cathlamet Channel, Wahkiakum County.
Pound net trap in the Cathlamet Channel, Wahkiakum County.

WDFW is conducting a test fishery of a pound net trap, located in Cathlamet Channel, Wahkiakum County, to evaluate the viability of pound net traps as an alternative commercial fishing gear and to evaluate the economic performance of the pound net.  In addition, data are being collected on all encountered fish stocks, including stock-composition monitoring, salmonid migration patterns, and collection of Chinook and steelhead genetic samples.  The data collected will provide WDFW with information used to ensure that impact limits set under the Endangered Species Act (ESA) are not exceeded for Chinook, Coho and steelhead.

Steelhead, non-adipose clipped Chinook and non-adipose clipped coho are released alive immediately after biological data have been collected.  Adipose-clipped Chinook and adipose-clipped coho are retained and sold by WDFW to offset costs of conducting test fisheries.  If a mortality occurs of a non-retainable fish it is donated to a local food bank.

Test fishing is occurring between August 25 – October 31, 2018.

The pound net trap consists of a series of pilings with netting attached designed to direct fish into a netted enclosure, from which they can be gathered into a livewell, sorted, and the harvestable fish retained while the non-harvestable fish are released alive after biological data have been collected. 

2018 Fall Pound Net Trap Test Fishery Preliminary Data Summary
Chinook Coho Steelhead Sturgeon
  Total A Total B Unknown Stock

Date
# of
Lifts
Total
Handle
Total
Release
Mark
Rate
Total
Handle
Total
Release
Mark
Rate
Total
Handle
Ad-clip No Ad-clip Ad-clip No Ad-clip Ad-clip No Ad-clip Total
Handle
Total
Release
Aug 25-Sep 1 86 916 516 44% 322 196 39% 92 41 14 26 5 5 1 2 2
Sep 2-7 42 259 154 41% 201 97 52% 73 24 12 26 5 4 2 2 2
Sep 9-13, 16 52 332 236 29% 389 169 57% 142 49 12 58 12 10 1 0 0
Oct 12, 13 3 0 0 0% 20 3 85% 9 5 2 2 0 0 0 0 0
Oct 14, 15, 18 7 1 1 0% 22 4 82% 6 3 2 1 0 0 0 0 0
Total 190 1508 907 40% 954 469 51% 322 122 42 113 22 19 4 4 4

Notes:

Chinook and Coho handle numbers are adults only.  The shoreside lead was raised (not fishing) for Aug 25-Sep 7, and lowered (fishing) for Sep 9-16.

- Aug 25 - Sep 1 2018: 430 adipose-clipped Chinook including 30 jacks, and 130 adipose-clipped coho including 4 jacks sold by agency.
Total Chinook released includes 1 adipose-clip and 1 unknown clip.
Both sturgeon were overlegal size

- Sep 2-7 2018: 110 adipose-clipped Chinook including 5 jacks, and 107 adipose-clipped coho including 3 jacks, sold by agency.
Total Chinook released includes 2 adipose-clip and 1 unknown clip. Total coho released includes 2 adipose-clipped and 1 unknown clip.
One sturgeon was overlegal size and one was sublegal.
Fishing was unsuccessful on Sep 4 due to continuous marine mammal presence.

- Sep 9-13,16 2018: 109 adipose-clipped Chinook including 13 jacks, and 220 adipose-clipped coho including 1 jack, sold by agency.
Total Chinook released includes 2 adipose-clip. Total coho released includes 3 adipose-clipped and 1 unknown clip.
One non-adipose clipped coho was donated after being mis-identified as adipose-clipped and retained.

Pound net trap test fishing during the fall Chinook return timeframe is complete. Test fishing will resume around October 11-13 to assess trap performance during the late coho return timeframe.

- Oct 12-13 2018: 20 adipose-clipped coho including 3 jacks, sold by agency. Released 1 Chum and 20 largescale suckers. One adipose-clipped A-run steelhead was donated after being mis-identified and retained

- Oct 14, 15, 18 2018: 18 adipose-clipped coho sold by agency.

 

Spring Chinook mainstem test fishery

Mainstem Columbia River Tangle Net test fishing is conducted each spring on the lower Columbia River in Catch Areas 1B and 1C (Zones 2 and 3) to evaluate the current run in regards to timing, stock composition, mark rate and other biological data, and to provide a long-term dataset. This test fishery provides additional information to fishery managers which aides in the in-season management of the recreational spring chinook fishery. A test fishing summary can also be found on ODFW's website.

Steelhead, wild chinook and sturgeon are released immediately or are placed in a recovery box to aid in collection of biodata then released after the fish recovers. Adipose-clipped chinook are sold to offset costs of conducting the test fishery. Upon request some upriver chinook may be retained by Columbia River Treaty tribal members to meet immediate ceremonial needs. If a mortality occurs for a non-retainable fish it is donated to a local food bank.

Test Fishery in Zones 2 and 3, using 4.25" mesh Tangle Net

2018 Spring Chinook Observation Preliminary Summary
  Chinook   Steelhead Sturgeon

Date
# of
Drifts
Total
Handle
Total
Release
Mark
Rate
%
Upriver
Chinook/
Drift
Chinook/
Steelhead
Steelhead/
Drift
Total
Handle
Total
Release
Mark
Rate
Total
Handle
Total
Release
Mar 18 [1] 15 4 0 100% 25% 0.3 1.0 0.3 4 4 75% 22 22
Mar 25 [2] 17 16 5 69% 75% 0.9 1.8 0.5 9 7 33% 30 30
Apr 1 [3] 15 14 2 86% 71% 0.9 3.5 0.3 4 4 50% 8 8
Apr 8 [4] 16 36 8 78% 50% 2.3 18.0 0.1 2 2 50% 21 21
Apr 15 [5] 16 108 15 86% 71% 6.8 8.3 0.8 13 13 54% 12 12
Apr 22 [6] 16 129 15 88% 67% 8.1 25.8 0.3 5 5 60% 42 42
Apr 29 [7] 12 77 5 79% 73% 6.4 9.6 0.7 8 6 50% 9 9
                           

Notes

1 4 adipose-clipped chinook sold by agency.

2 10 adipose-clipped chinook sold by agency. 1 upriver chinook retained by Treaty tribe. 2 steelhead (1 no mark, 1 adipose-clipped) donated to food bank.

3 11 adipose-clipped chinook sold by agency. 3 upriver chinook (2 no mark, 1 adipose-clipped) retained by Treaty tribe.

4 April 8 - 27 adipose-clipped chinook sold by agency. 7 upriver chinook (6 no mark, 1 adipose-clipped) retained by Treaty tribe.

5 April 15 - 108 adipose-clipped chinook sold by agency.

6 April 22 - 113 adipose-clipped chinook sold by agency. 1 upriver no mark chinook donated to food bank.

7 April 29 - 61 adipose-clipped chinook sold by agency. 11 upriver no mark chinook retained by Treaty tribe. 2 steelhead (1 no mark, 1 adipose-clipped) donated to food bank.


Spring Chinook Cathlamet Channel research test fishery

Cathlamet Channel test fishing has concluded for 2018.

The Washington Fish and Wildlife Commission in 2013 adopted the Columbia River Basin Salmon Management Policy (# C-3620), which includes guidance to "seek to phase out the use of non-selective gill nets in non-tribal commercial fisheries in the mainstem Columbia River, and transition gill net use to off-channel areas" by 2017.

In response to these directives, WDFW re-examined potential sites for off-channel "Select Area Fishery Enhancement" (Select Area) for rearing spring chinook (Oncorhynchus tshawytscha), and determined the Cathlamet Channel to have the most potential as a suitable location. The Cathlamet Channel is located in Wahkiakum County and is a side channel of the mainstem Columbia River running from approximately river mile 38 to river mile 47.

To assess the Cathlamet Channel as a potential Select Area site, research test fishing was initiated in 2013 to determine the run timing, abundance and stock composition, mark rate and other biological data of salmon returning during the late winter and spring time frame. From 2014-2018, spring chinook have been acclimated and released from net pens in Cathlamet Channel. Test fishing is used to evaluate returns of net pen fish to Cathlamet Channel.

Steelhead, wild chinook and sturgeon are released immediately or placed in a recovery box to aid in collection of biodata , then released after the fish recovers. Adipose-clipped chinook are sold to offset costs of conducting the test fishery. Upon request some upriver chinook may be retained by Columbia River Treaty tribal members to meet immediate ceremonial needs. If a mortality occurs for a non-retainable fish it is donated to a local food bank.

Test fishing typically occurs on Mondays and Thursdays from late February through early May.

2018 Cathlamet Channel Spring Chinook Preliminary Research Data Summary
  Chinook Steelhead Sturgeon

Date
# of
Drifts
Total
Handle
Total
Release
Mark
Rate
%
Upriver
Chinook
/ Drift
Total
Handle
Total
Release
Mark
Rate
Total
Handle
Total
Release
Feb. 26-28 6 0 0 0% 0% 0.00 1 1 0% 1 1
Mar. 5 8 0 0 0% 0% 0.00 2 2 50% 2 2
Mar. 12 8 1 0 100% 0% 0.13 5 5 60% 0 0
Mar. 15 8 1 0 100% 100% 0.13 0 0 0% 2 2
Mar. 19 [1] 8 0 0 0% 0% 0.00 2 1 100% 1 1
Mar. 22 8 2 1 50% 0% 0.25 0 0 0% 1 1
Mar. 26 8 8 2 25% 0% 1.00 2 2 50% 0 0
Mar. 29 8 1 1 0% 0% 0.13 2 2 0% 0 0
Apr. 2 8 15 0 100% 0% 1.88 6 6 17% 0 0
Apr. 5 8 8 2 75% 50% 1.00 1 1 0% 3 3
Apr. 9 7 31 4 87% 65% 4.43 3 3 0% 0 0
Apr. 12 8 34 8 76% 65% 4.25 2 2 50% 0 0
Apr. 16 8 23 3 87% 74% 2.88 5 5 60% 1 1
Apr. 19 8 65 5 92% 72% 8.13 2 2 50% 1 1
Apr. 23 8 40 5 88% 65% 5.00 6 6 50% 3 3
Apr. 25 2 8 41 4 85% 63% 5.13 3 3 67% 4 4
Apr. 30 4 17 1 94% 59% 4.25 1 1 100% 0 0
May 7 4 3 0 100% 67% 0.75 0 0 0% 0 0
Total 133 290 36 87% 67%   43 42 44% 19 19

Notes

1 1 adipose-clipped steelhead donated to food bank.

2 1 lower river, no mark chinook and 1 upriver, no mark chinook donated to food bank.

Through May 7, 252 adipose-clipped chinook sold by the agency.