Fish Count at Van Arsdale Reservoir


Van Arsdale Fish Count Station

April 17, 2017

The Chinook count stands at 435 (Male 191, Female 188, Jack 56). No steelhead were trapped this week. The steelhead count stands at 59 (Male 27, Female 32). If no steelhead are trapped this next week, trapping will cease the following week. The lamprey tube was offline last week. We hope to have it up and running in the next couple of days.

 

Scott L Harris

Associate Biologist (Marine/Fish)
Northern Region
PO Box 1690, Willits CA 95490
707-459-2238


Van Arsdale is the bay for the water diversion tunnel at Cape Horn Dam, the PG&E Potter Valley Hydropower Project, and the site of the oldest fish counting station in California. Built in 1922 as part of the licensing for the second dam to be built on this system, Scott Dam. By this time three generations of fish were lost because Cape Horn Dam did not have a fish ladder, between 1907 and 1922. It is said that only 40% to 45% of the fish that arrive at this site actually are able to make it up this fish ladder, demonstrating that fish ladders really do not solve the problem of getting salmon to where there is adequate and safe spawning and rearing habitat.

The next generation is then severely interfered with by dams. These dams block at least 125 miles of prime spawning and rearing habitat, but recent GIS maps indicate that there could be more than 1,000 miles available for this purpose. Loss of this fishery has impacted the north coast from Eureka to Bodega Bay fishing industry with the loss in the billions of dollars.

Read Dr. Yoshiyama & Moyle’s Historical Review of Eel River Anadromous Salmonids, 2010


Past Weeks

Historic Fish Count Data 1933-2010 

April 10, 2017
The Chinook count stands at 435 (Male 191, Female 188, Jack 56). A total of two steelhead was trapped this week. The steelhead count stands at 59 (Male 27, Female 32). The last storm set really woke up the lamprey around the station. Unfortunately, once river flow gets above 1,200 cfs the entrance to the tube is submerged and lamprey cannot utilize the tube. Flow is still above 1,200 cfs this morning. Lamprey did ascend the tube during part of this last week but I have yet to review the videos and produce counts…maybe next week.

April 3, 2017
The Chinook count stands at 435 (Male 191, Female 188, Jack 56). A total of 13 steelhead was trapped this week. The steelhead count stands at 57 (Male 26, Female 31). Pacific lamprey are on the move at the station. The flex tube and video monitoring equipment utilized last year were reinstalled on Thursday/Friday. Hopefully, I can provide some preliminary counts next week.

March 27, 2017
The Chinook count stands at 435 (Male 191, Female 188, Jack 56). A total of 8 steelhead were trapped this week. The steelhead count stands at 44 (Male 19, Female 25).

March 20, 2017
The Chinook count stands at 435 (Male 191, Female 188, Jack 56). A total of 12 steelhead were trapped this week. The steelhead count stands at 36 (Male 16, Female 20).

March 14, 2017
The Chinook count stands at 435 (Male 191, Female 188, Jack 56). A total of 4 steelhead were trapped this week. The steelhead count stands at 24 (Male 12, Female 12).

March 7, 2017
The ladder was back online on the 28th. The Chinook count stands at 435 (Male 191, Female 188, Jack 56). A total of 7 steelhead were trapped this week. The steelhead count stands at 20 (Male 9, Female 11).

February 28, 2017
The ladder was offline due to high flow and cleanup. The Chinook count stands at 435 (Male 191, Female 188, Jack 56). The steelhead count stands at 13 (Male 5, Female 8).

February 22, 2017
The ladder was offline due to high flow and cleanup. The Chinook count stands at 435 (Male 191, Female 188, Jack 56). The steelhead count stands at 13 (Male 5, Female 8).

February 13, 2017
The ladder was back online on January 31 but was again offline on February 7 due to high flow and damage. The Chinook count stands at 435 (Male 191, Female 188, Jack 56). One male steelhead was counted prior to the closing of the ladder. The steelhead count stands at 13 (Male 5, Female 8).

February 6, 2017
The ladder was back online on January 31. No Chinook this past week. The Chinook count stands at 435 (Male 191, Female 188, Jack 56). A total of nine steelhead were counted this past week. The steelhead count stands at 12 (Male 4, Female 8).

January 29, 2017
The station was again closed this past week due to storm damage. The ladder will be open either today or tomorrow. The Chinook count stands at 435 (Male 191, Female 188, Jack 56). The steelhead count stands at 3 (Male 1, Female 2).

January 22, 2017
The station was closed this past week due to high water and debris issues. The Chinook count stands at 435 (Male 191, Female 188, Jack 56). The steelhead count stands at 3 (Male 1, Female 2). The ladder remains closed due to damage suffered during the week’s storms. PG&E cleared the ladder of sediment but flow level will have to get well below 2,000 cfs to address issues in what we refer to as “the hotel”. The hotel encompasses the last five steps of the ladder and at least two of those steps were full of sediment. I’m hoping we can return to normal operations this next week.

January 15, 2017
The station was closed on January 8 due to high water and debris issues. The Chinook count stands at 435 (Male 191, Female 188, Jack 56). The steelhead count stands at 3 (Male 1, Female 2). The ladder remains closed due to damage suffered during the week’s storms.

January 8, 2017
No Chinook this past week. The Chinook count stands at 435 (Male 191, Female 188, Jack 56). One female steelhead entered the station this past week. The steelhead count stands at 3 (Male 1, Female 2).

January 1, 2017
A single male Chinook was counted this past week. The Chinook count stands at 435 (Male 191, Female 188, Jack 56). One female steelhead entered the station this past week. The steelhead count stands at 2 (Male 1, Female 1).

December 27, 2016
The ladder was brought back on line on December 19. A single female Chinook was counted this past week. The Chinook count stands at 434 (Male 190, Female 188, Jack 56). The first steelhead (male) entered the station this past week.

December 19, 2016
Due to storm events and subsequent high flow and debris issues, the station was closed down for the week. The Chinook count stands at 433 (Male 190, Female 187, Jack 56). No steelhead.

December 12, 2016
A total of 8 Chinook were counted this past week. The Chinook count stands at 433 (Male 190, Female 187, Jack 56). No steelhead.

December 5, 2016
A total of 35 Chinook were counted this past week. The Chinook count stands at 425 (Male 185, Female 184, Jack 56). No steelhead yet and this is to be expected.

November 28, 2016
A total of 138 Chinook were counted this past week. The Chinook count stands at 390 (Male 167, Female 171, Jack 52). No steelhead yet and this is to be expected.

November 21, 2016
A total of 89 Chinook were counted this past week. The Chinook count stands at 252 (Male 110, Female 111, Jack 31). Approximately 95% of the Chinook this past week were very fresh or new to the river. No steelhead yet and this is to be expected.

November 14, 2016
A total of 54 Chinook were counted this past week. The Chinook count stands at 163 (Male 81, Female 664, Jack 16). No steelhead yet and this is to be expected.

November 7, 2016
A total of 70 Chinook were counted this past week. The Chinook count stands at 109 (Male 54, Female 44, Jack 11). No steelhead yet and this is to be expected.

October 31, 2016
The first Chinook arrived on October 25th. The Chinook count stands at 39 (Male 22, Female 10, Jack 7).


April 16, 2016
And so ends another season. Trapping has ceased at VAFS. Following are the counts to date for 15-16 season.
The Chinook count stands at 102 (Male 75, Female 21, Jack 6). The steelhead count stands at 174 (Male 68, Female 106).

April 11, 2016
The Chinook count stands at 102 (Male 75, Female 21, Jack 6). Five steelhead entered the station this past week. The steelhead count stands at 174 (Male 68, Female 106). This past week we observed a peak in Pacific lamprey migration. At this time we are not set up to count lamprey.

Lamprey at Cape Horn Dam | Photo Courtesy Scott Harris

Lamprey at Cape Horn Dam | Photo Courtesy Scott Harris

April 5, 2016

The Chinook count stands at 102 (Male 75, Female 21, Jack 6). Seven steelhead entered the station this past week. The steelhead count stands at 169 (Male 67, Female 102).

March 23, 2016

The Chinook count stands at 102 (Male 75, Female 21, Jack 6). Two steelhead entered the station this past week. The steelhead count stands at 162 (Male 64, Female 98)

March 15, 2016

The Chinook count stands at 102 (Male 75, Female 21, Jack 6). One steelhead entered the station this past week. The steelhead count stands at 160 (Male 62, Female 98).

March 8, 2016

The Chinook count stands at 102 (Male 75, Female 21, Jack 6). A total of 5 steelhead entered the station this past week. The steelhead count stands at 159 (Male 62, Female 97).

March 1, 2016

The Chinook count stands at 102 (Male 75, Female 21, Jack 6). A total of 5 steelhead entered the station this past week. The steelhead count stands at 154 (Male 61, Female 93).

February 23, 2016

The Chinook count stands at 102 (Male 75, Female 21, Jack 6). A total of 37 steelhead entered the station this past week. The steelhead count stands at 149 (Male 59, Female 90).

February 16, 2016

The Chinook count stands at 102 (Male 75, Female 21, Jack 6). A total of 57 steelhead entered the station this past week. The steelhead count stands at 112 (Male 48, Female 64).

February 10, 2016

No Chinook salmon entered the station this past week. The Chinook count stands at 102 (Male 75, Female 21, Jack 6). A total of 27 steelhead entered the station this past week. The steelhead count stands at 55 (Male 24, Female 31).

February 2, 2016

No Chinook salmon entered the station this past week. The Chinook count stands at 102 (Male 75, Female 21, Jack 6). Eight steelhead entered the station this past week. The steelhead count stands at 28 (Male 13, Female 15).

January 26, 2016

No Chinook salmon entered the station this past week. The Chinook count stands at 102 (Male 75, Female 21, Jack 6). Seven steelhead entered the station this past week. The steelhead count stands at 16 (Male 10, Female 6).

January 19, 2016

No Chinook salmon entered the station this past week. The Chinook count stands at 102 (Male 75, Female 21, Jack 6). One steelhead entered the station this past week. The steelhead count stands at 9 (Male 5, Female 4).

January 11, 2016

No Chinook salmon entered the station this past week. The Chinook count stands at 102 (Male 75, Female 21, Jack 6). A total of four steelhead entered the station this past week. The steelhead count stands at 8 (Male 4, Female 4).

December 28, 2015

A total of 2 Chinook entered the station this past week. The Chinook count stands at 102 (Male 75, Female 21, Jack 6). Three steelhead entered the station this past week. The steelhead count stands at 4 (Male 1, Female 3).

December 20, 2015

A total of 46 Chinook entered the station this past week. The Chinook count stands at 100 (Male 73, Female 21, Jack 6). Jacks are male fish 65cm (FL) or less. On a very rare occasion we find females that fit the jack size definition: they are termed “Jills”.  A single female steelhead showed up today. The steelhead count stands at one.

December 15, 2015

A total of 54 Chinook entered the station this past week. The Chinook count stands at 58 (Male 43, Female 13, Jack 2). No steelhead as of yet. Coho salmon are not expected at this station.

December 8, 2015

The first Chinook arrived at Van Arsdale Dam on December 5. Through December 7, the count stands at 8 males.


 

April 17, 2015

The numbers below should be considered end of season totals (preliminary) for both stations.

Chinook – 588 (Male 228, Female 291, Jack 69). Steelhead – 217 (Male 79, Female 138).

February 10, 2015

The Chinook run has ended. The county stands at 584 (Male 228, Female 291, Jacks 65).

Five steelhead entered the station during the past week. The steelhead count stands at 60 (Male 28, Female 32). The ladder was shut down over the weekend and will be put back in service either Wednesday or Thursday dependent on flow and debris.

February 2, 2015

The Chinook run has ended. The county stands at 584 (Male 228, Female 291, Jacks 65).

Nine steelhead entered the station this past week. The steelhead count stands at 55 (Male 26, Female 29).

January 26, 2015

The Chinook run has ended. The county stands at 584 (Male 228, Female 291, Jacks 65).

Twelve steelhead entered the station during the last week. The steelhead count stands at 46 (Male 19, Female 27).

January 20, 2015

The Chinook run has ended. The county stands at 584 (Male 228, Female 291, Jacks 65).

Twenty two steelhead entered the station since the last reporting. The steelhead count stands at 34 (Male 15, Female 19).

December 30, 2014

No Chinook entered the station this past week. The county stands at 584 (Male 228, Female 291, Jacks 65).

Two steelhead entered the station this past week. The steelhead count stands at 12 (Male 2, Female 10).

December 22, 2014

One Chinook entered the station this past week. The count stands at 584 (Male 228, Female 291, Jacks 65).

Three steelhead entered the station this past week. The steelhead count stands at 10 (Male 2, Female 8). It will most likely be a while before seeing steelhead move, in numbers, into the ladder.

December 15, 2014

Due to very high flow, the ladder was taken out of service on Friday (11th) and placed back in service on Monday (15th).

A total of 13 Chinook entered the fish station this past week. The count stands at 583 (Male 228, Female 290, Jack 65).

No steelhead entered the station this past week. The steelhead count stands at 7 (Male 1, Female 6).

December 8, 2014

A total of 78 Chinook entered the station this past week. The count stands at 570 (Male 221, Female 287, Jacks 62). The Chinook run appears to be closing out.

Five steelhead entered the station this past week. The count stands at 7 (Male 1, Female 6).

December 1, 2014

A total of 330 Chinook entered the station this past week.

The count stands at 492 (Male 180, Female 258, Jacks 54). A single female steelhead was also counted.

November 24, 2014

The first Chinook arrived on November 20. Through November 23, a total of 162 Chinook have been processed (Male 61, Female 71, Jack 30).

Jacks are those fish measuring less than 66 cm in fork length.


 

February 10, 2013

The Chinook salmon season total stands at 3,471: (1,816 male, 1,120 female, 535 jacks).

A total of 30 steelhead entered the station this past week.  The season total stands at 186: (86 male, 100 female).

February 3, 2013

The Chinook salmon season total stands at 3,471: (1,816 male, 1,120 female, 535 jacks)..

A total of 20 steelhead entered the station this past week.  The season total stands at 156: (70 male, 86 female).

January 27, 2013

The Chinook salmon season total stands at 3,471: (1,816 male, 1,120 female, 535 jacks)..

A total of 67 steelhead entered the station this past week.  The season total stands at 136: (59 male, 77 female).

January 20, 2013

The Chinook salmon season total stands at 3,471: (1,816 male, 1,120 female, 535 jacks)..

Twenty-two steelhead entered the station this past week. The season total stands at 69: (32 male, 37 female).

January 14, 2013

The Chinook salmon season total stands at 3,471: (1,814 male, 1,120 female, 535 jacks).

The steelhead season total stands at 47: (19 male, 28 female).

December 17, 2012

A total of 27 Chinook salmon entered the station this past week.  The season total stands at 3,461: (1,812 male, 1,116 female, 533 jacks).

Three steelhead entered the station this past week. The season total stands at 9: (3 male, 6 female).

December 9, 2012

A total of 35 Chinook salmon entered the station this past week.  The season total stands at 3,434: (1,797 male, 1,108 female, 529 jacks). The station was closed down on December 2 due to issues associated with high flow. The ladder was placed back in operation on December 5.

Two steelhead entered the station this past week. The season total stands at 6: (2 male, 4 female).

December 2, 2012

A total of 329 Chinook salmon entered the station this past week.  The season total stands at 3,399: (1,779 male, 1097 female, 523 jacks). The station was closed down on December 2 due to issues associated with high flow. It’s unclear at this time when normal operations will resume.

One steelhead entered the station this past week. The season total stands at 4: (2 male, 2 female).

November 25, 2012

A total of 1,166 Chinook salmon entered the station this past week.  The season total stands at 3,070: (1,611 male, 967 female, 492 jacks). This season total surpasses any prior record for Chinook salmon at this station.

A total of 3 steelhead (2 male, 1 female) entered the station this past week. These are the first steelhead of the season.

November 19, 2012

A total of 1,271 Chinook salmon entered the station this past week.  The season total stands at 1,904: (1,013 male, 578 female, 313 jacks). On November 18, the single day record was broken: 765 fish were counted.

November 12, 2012

A total of 439 Chinook salmon entered the station this past week.  The season total stands at 633: (333 male, 150 female, 150 jacks).

November 4, 2012

Chinook salmon entered the station on November 2 and through November 4 a total 194 were counted: (104 male, 32 female, 58 jacks).


 

April 1, 2012

The Chinook season total stands at 2,436: (841 male, 360 female, 1,235 jacks). No steelhead entered the station this past week for a standing total of 396: (136 male, 260 female).

March 26, 2012

The Chinook season total stands at 2,436: (841 male, 360 female, 1,235 jacks). A total of 22 steelhead entered the station this past week for a season to date total of 396: (136 male, 260 female).

March 19, 2012

The Chinook season total stands at 2,436: (841 male, 360 female, 1,235 jacks). A total of 92 steelhead entered the station this past week for a season to date total of 374: (130 male, 244 female).

March 13, 2012

The Chinook season total stands at 2,436: (841 male, 360 female, 1,235 jacks).A total of 20 steelhead entered the station this past week for a season to date total of 282: (101 male, 181 female).

March 6, 2012

The Chinook season total stands at 2,436: (841 male, 360 female, 1,235 jacks). A total of 32 steelhead entered the station this past week for a season to date total of 262: (94 male, 168 female).

February 29, 2012

The Chinook season total stands at 2,436: (841 male, 360 female, 1,235 jacks).
A total of 26 steelhead entered the station this past week for a season to date total of 230: (86 male, 144 female).

February 19, 2012

Chinook season total stands at 2,436: (841 male, 360 female, 1,235 jacks).
A total of 22 steelhead entered the station this past week for a season to date total of     204: (78 male, 126 female).

February 12, 2012

Chinook season total stands at 2,436: (841 male, 360 female, 1,235 jacks). A total of 97 steelhead entered the station this past week for a season to date total of 182: (70 male, 111 female).

February 5, 2012

The Chinook season total stands at 2,436: (841 male, 360 female, 1,235 jacks). Thirty nine steelhead entered the station this past week for a season to date total of 85: (39 male, 46 female).

January 29, 2012

The Chinook season total stands at 2,436: (841 male, 360 female, 1,235 jacks). Forty-one steelhead entered the station this past week for a season to date total of 46: (21 male, 25 female)

January 23, 2012

No new Chinook. Chinook season total = 2,436: (841 male, 360 female, 1,235 jacks). Four steelhead entered the station this past week for a season to date total of 5: (3 male, 2 female)

January 8, 2012

One Chinook salmon entered the station this past week: season total = 2,436: (841 male, 360 female, 1,235 jacks). To date, only a single female steelhead has entered the station.

January 1, 2012

Five Chinook salmon entered the station this past week: season total = 2,435: (841 male, 360 female, 1,234 jacks). To date, only a single female steelhead has entered the station..

December 25, 2011

No Chinook salmon entered the station this past week: the season total remains at 2,430: (841 male, 360 female, 1,229 jacks). To date, only a single female steelhead has entered the station.

December 18, 2011

A total of 11 Chinook salmon entered the station this past week, bringing the season total to 2,430: (841 male, 360 female, 1,229 jacks). To date, only a single female steelhead has entered the station.

December 11, 2011

A total of 23 Chinook salmon entered the station this past week, bringing the season total to 2,419: (840 male, 358 female, 1,221 jacks). To date, only a single female steelhead has entered the station.

December 4 , 2011

A total of 225 Chinook salmon entered the station this past week, bringing the season total to 2,396: (834 male, 355 female, 1,207 jacks). A single female steelhead also entered the station this past week.

November 27, 2011

A total of 1,281 Chinook salmon entered the station this past week, bringing the season total to 2,171: (774 male, 283 female, 1,114 jacks).

November 20, 2011

A total of 654 Chinook salmon entered the station this past week, bringing the season total to 890: (335 male, 96 female, 459 jacks).

November 14, 2011 

A total of 83 Chinook salmon entered the station this past week, bringing the season total to 236: (35 male, 25 female, 176 jacks). Until we receive significant rainfall, numbers will remain low.

November 6, 2011

A total of 89 Chinook salmon entered the station this past week, bringing the season total to 153: (26 male, 17 female, 110 jacks).

October 31, 2011

A total of 39 Chinook salmon entered the station this past week, bringing the season total to 64: (8 male, 6 female, 50 jacks).

October 25, 2011

Thirteen Chinook salmon entered the station this past week, bringing the season total to 25: (2 male, 2 female, 21 jacks). The Chinook migration will continue to be slow in the upper Eel River until we receive more rain.


 

March 27, 2011

Chinook salmon total remains at 2,315: (814 male, 746 jack, 755 female). Three steelhead entered the station this past week bringing the season total to 151: (56 male, 95 female).

Share
Back to top