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Interrogation Site Metadata

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MVP - Mid-Valley Acclimation Pond

Status:   Active - Non-Operational
Site Type: Monitored Fish Release  |  Organization: Yakama Nation
General Operational Period: Seasonally
Start Date: 3/23/2012 4:10 PM

The site is installed within the outlet of the lower most pond in an off-channel pond complex on the Methow River, located at River km 87.6. The outlet is approximately .5 mi. in length with a wetted width varying from 3ft to 50 feet. The detection systems are installed in series within the outlet and are comprised of three model 2001F-ISO portable PIT detection units. The first antenna is a 24in X 24in pass through and identified as Upstream antenna 01, while second and third antennas are 9ft X 3ft pass-through antennas and identified as Middle antenna 02 and Downstream antenna 03, respectively. Upstream antenna 01 is located approximately 40 ft. upstream of Middle antenna 02, while Middle antenna 02 is approximately 15 ft. upstream of Downstream antenna 03. The interrogation systems are intended to monitor juvenile escapement, in-pond, and smolt to smolt survival. The systems are operational during juvenile acclimation. Typical times of operation for this site are March 1 to June 15.

Current Operations

Last File Loaded: MVP-2021-137-P-1.xml
Date Last File Loaded: 6/23/2021 3:00 PM
Date Last File Opened: 3/11/2021 12:00 PM
Date Last File Closed: 5/17/2021 3:00 PM
Last Observation Tag: 3DD.003D61B1BD
Last Observation Date: 5/17/2021 6:06 AM
Detection Summary: Last Day's Observations

Contacts

Primary Contact:

Rick Alford
alfr@yakamafish-nsn.gov
509-996-9857

Data Steward:

Cory Kamphaus
kamc@yakamafish-nsn.gov
509-548-9413

Location

Coordinates: 48.504212, -120.256140  |  River Km: 843.088

Operational History

Operational history describes the period the site was interrogating for PIT tags. The comments provide anecdotal information about the operation of the site during this period. Site operational periods are updated typically at the end of the calendar year.

Year Start Date End Date Comments
2021
2020 3/16/2020 12:00 PM 5/18/2020 3:00 PM Start and end dates based on file open and close dates.
2019 3/18/2019 12:00 PM 5/30/2019 4:00 PM Start and end dates based on file open and close dates.
2018 Site was not in operation this year.
2017 Site was not in operation this year.
2016 Acclimation of juvenile salmonids did not occur at the Mid Valley Pond so the interrogation site did not operate this year.
2015 Acclimation of juvenile salmonids did not occur at the Mid Valley Pond so the interrogation site did not operate this year.
2014 3/19/2014 10:00 AM 4/28/2014 1:35 PM
2013 3/18/2013 8:00 AM 5/2/2013 9:15 AM Volitional release began on April 11, but some fish escaped March 20.
2012 3/23/2012 4:10 PM 5/15/2012 12:05 PM See event log for operational notes.

Configuration

Configuration metadata includes details about the equipment used at the site to detect and record PIT tags. A new configuration sequence record is created when equipment is added or removed from the site and the period of time it was active. A configuration sequence without an End Date is currently active.

Select Configuration Number:
Start Date:  3/23/2012
End Date:  ----

Equipment History

Select a type to view the history of equipment installed at this site. A missing End Date implies the information about the equipment is current.

Select Equipment Type:
Equipment Code Description Start Date End Date

No Photos

Event Log Summary

Event Date Event Type Comments
7/14/2021 11:10:00 AM General

Interrogation event log for the Mid-Valley Pond Acclimation Site (MVP) - 2021 release

PIT tag interrogation system (Antenna 01) for the Mid-Valley Pond began on 03-11-2021 at 1200 hrs. Antenna (01) was located 3 meters upstream of the wooden bridge (pond outlet). A total of 20 files were downloaded throughout the interrogation period. Antenna (01) did not experience any lapse of coverage during release. PIT tag detections were observed prior to our release date of 04-26-2021. These escapees are believed to be attributed to an undetected small gap in the barrier net via snow melt at the site. Staff snorkeled the net multiple times to eliminate any holes in the net and secured the lead line.  Antenna (01) was removed on 05-17-2021 at 1200 hrs due to high flows.

On 03-14-2021 prior to the installation of the Mid-Valley pond acclimation site PIT tag interrogation system (Antenna 02) and (Antenna 03), staff were made aware of a breach based on a high number of tags from the group being detected at downstream detection locations. Staff immediately inspected the pond perimeter and discovered a large hole that had formed through the base of the containment berm on the downstream end of the pond area due to snow melt and rising temperatures allowing an escape point available to the rearing group. Due to the breach, these escapees had bypassed the pond outlet PIT tag interrogation system (Antenna 01). Staff successfully blocked the breach point and it was continuously monitored throughout the month. The high majority of escapee detections were observed between March 13 and 14.

PIT tag interrogation system (Antenna 02) for the Mid-Valley Pond began on 03-14-2021 at 1500 hrs. Antenna (02) was located approximately 15 meters downstream of Antenna (01). Antenna (02) did not experience any lapse of coverage while installed. The array had a total of 15 files downloaded throughout the Antenna (02) interrogation period. The last download for this antenna occurred on 05-17-2021 at 1300 hrs due to high flows and was removed.

PIT tag interrogation system (Antenna 03) for the Mid-Valley Pond began on 04-26-2021 at 1300 hrs. Antenna (03) was located approximately 15 meters downstream of Antenna (02). Antenna (03) was never moved, but did experience a lapse of coverage between 05-11-2021 at 2100 hrs and 05-14-2021 at 0100 hrs. A total of 10 files were downloaded throughout the Antenna (03) interrogation period. The last download for this antenna occurred on 05-17-2021 at 1300 hrs due to high flows and was removed.

7/14/2021 11:10:00 AM General

Interrogation event log for the Mid-Valley Pond Acclimation Site (MVP) - 2021 release

PIT tag interrogation system (Antenna 01) for the Mid-Valley Pond began on 03-11-2021 at 1200 hrs. Antenna (01) was located 3 meters upstream of the wooden bridge (pond outlet). A total of 20 files were downloaded throughout the interrogation period. Antenna (01) did not experience any lapse of coverage during release. PIT tag detections were observed prior to our release date of 04-26-2021. These escapees are believed to be attributed to an undetected small gap in the barrier net via snow melt at the site. Staff snorkeled the net multiple times to eliminate any holes in the net and secured the lead line.  Antenna (01) was removed on 05-17-2021 at 1200 hrs due to high flows.

On 03-14-2021 prior to the installation of the Mid-Valley pond acclimation site PIT tag interrogation system (Antenna 02) and (Antenna 03), staff were made aware of a breach based on a high number of tags from the group being detected at downstream detection locations. Staff immediately inspected the pond perimeter and discovered a large hole that had formed through the base of the containment berm on the downstream end of the pond area due to snow melt and rising temperatures allowing an escape point available to the rearing group. Due to the breach, these escapees had bypassed the pond outlet PIT tag interrogation system (Antenna 01). Staff successfully blocked the breach point and it was continuously monitored throughout the month. The high majority of escapee detections were observed between March 13 and 14.

PIT tag interrogation system (Antenna 02) for the Mid-Valley Pond began on 03-14-2021 at 1500 hrs. Antenna (02) was located approximately 15 meters downstream of Antenna (01). Antenna (02) did not experience any lapse of coverage while installed. The array had a total of 15 files downloaded throughout the Antenna (02) interrogation period. The last download for this antenna occurred on 05-17-2021 at 1300 hrs due to high flows and was removed.

PIT tag interrogation system (Antenna 03) for the Mid-Valley Pond began on 04-26-2021 at 1300 hrs. Antenna (03) was located approximately 15 meters downstream of Antenna (02). Antenna (03) was never moved, but did experience a lapse of coverage between 05-11-2021 at 2100 hrs and 05-14-2021 at 0100 hrs. A total of 10 files were downloaded throughout the Antenna (03) interrogation period. The last download for this antenna occurred on 05-17-2021 at 1300 hrs due to high flows and was removed.

10/14/2020 12:05:23 PM General Interrogation event log for the Mid-Valley Pond Acclimation Site (MVP) - 2020 release PIT tag interrogation system (Antenna 01) for the Mid-Valley Pond began on 03-16-2020 at 1200 hrs. Antenna (01) was located 3 meters upstream of the wooden bridge (pond outlet). A total of 16 files were downloaded throughout the interrogation period. PIT tag detections were observed prior to our release date of 04-20-2020 at 1830 hrs. These escapees are believed to be attributed to a small gap in the barrier net. Staff snorkeled the net multiple times to eliminate any holes in the net and secured the lead line. Antenna (01) was removed early on 05-18-2020 at 1500 hrs due to high flows. PIT tag interrogation system (Antenna 02) for the Mid-Valley Pond began on 03-16-2020 at 1200 hrs. Antenna (02) was located approximately 15 meters downstream of Antenna (01). Antenna (02) was never moved, but did experience a lapse of coverage between 03-31-2020 at 1200 hrs and 4-20-2020 at 0900 hrs. This array was intentionally turned off due to reduced staff hours and adherence to the Covid-19 pandemic Yakama Nation employee health guidelines. This antenna was made operational on 04-20-2020 at 0900 hrs for release at 1830 hrs later that evening. The array did not experience any lapse of coverage during release and a total of 13 files were downloaded throughout the Antenna (02) interrogation period. The last download for this antenna occurred on 05-24-2020 at 1200 hrs. PIT tag interrogation system (Antenna 03) for the Mid-Valley Pond began on 03-16-2020 at 1200 hrs. Antenna (03) was located approximately 15 meters downstream of Antenna (02). Antenna (03) was never moved, but did experience a lapse of coverage between 03-31-2020 at 1200 hrs and 4-20-2020 at 0900 hrs. This array was intentionally turned off due to reduced staff hours and adherence to the Covid-19 pandemic Yakama Nation employee health guidelines. This antenna was made operational on 04-20-2020 at 0900 hrs for release at 1830 hrs later that evening. The array did not experience any lapse of coverage during release and a total of 12 files were downloaded throughout the Antenna (03) interrogation period. The last download for this antenna occurred on 05-24-2020 at 1200 hrs. All antennas were removed on 05-24-2020 following a three-day period of no new unique PIT tag detections and a snorkel survey to confirm the pond was devoid of hatchery Coho.
7/29/2019 10:09:37 AM General Interrogation event log for the Mid-Valley Pond Acclimation Site (MVP)-2019 release PIT tag interrogation system (Antenna 01) for the Mid-Valley Pond began on 03-18-2019 at 1200 hrs. Antenna (01) was located 3 meters upstream of the wooden bridge (pond outlet). Antenna (01) never moved and did not experience any lapse in coverage. A total of 15 files were downloaded throughout the interrogation period. PIT tag detection was observed prior to our release date of 05-03-2019. These escapees are believed to be attributed to a small gap in the barrier net. Staff snorkeled the net multiple times to eliminate any holes in the net and secured the lead line. The last download for this antenna occurred on 05-30-2019 at 1600 hrs. PIT tag interrogation system (Antenna 02) for the Mid-Valley Pond began on 03-18-2019 at 1200 hrs. Antenna (02) was located approximately 15 meters downstream of Antenna (01). Antenna (02) was never moved and did not experience any lapse in coverage. A total of 15 files were downloaded throughout the Antenna (02) interrogation period. The last download for this antenna occurred on 05-30-2019 at 1600 hrs. PIT tag interrogation system (Antenna 03) for the Mid-Valley Pond began on 03-18-2019 at 1200 hrs. Antenna (03) was located approximately 15 meters downstream of Antenna (02). Antenna (03) did not experience any lapse in coverage. A total of 15 files were downloaded during the release period. The last download for this antenna occurred on 05-30-2019 at 1600 hrs. All antennas were removed on 05-30-2019 following a three-day period of no new PIT tag detections and a snorkel survey to confirm the pond was void of hatchery Coho.
3/1/2018 12:00:00 PM SiteDown Interrogation event log for the Mid Valley Pond (MVP) – 2018 The Mid Valley Acclimation Pond was not utilized by the Yakama Nation Fisheries in 2018. The Yakama Nation Fisheries will acclimate juvenile coho to this site in 2019 and into the foreseeable future.
3/1/2017 12:00:00 PM SiteDown Interrogation event log for the Mid Valley Pond (MVP) – 2017 The Mid Valley Acclimation Pond was not utilized by the Yakama Nation Fisheries in 2017. The Yakama Nation Fisheries will acclimate juvenile coho to this site in 2019 and into the foreseeable future.
6/26/2016 12:00:00 PM General Interrogation event log for the Mid Valley Pond Acclimation Site (MVP)-2016 release Acclimation of juvenile salmonids did not occur at this site in 2016. Pass-through PIT antennas were not installed at the outlet of the pond in 2016.
3/1/2016 12:00:00 PM SiteDown Interrogation event log for the Mid Valley Pond (MVP) – 2016 The Mid Valley Acclimation Pond was not utilized by the Yakama Nation Fisheries in 2016. The Yakama Nation Fisheries will acclimate juvenile coho to this site in 2019 and into the foreseeable future.
6/24/2015 12:00:00 PM General Interrogation event log for the Mid Valley Pond Acclimation Site (MVP)-2015 release Acclimation of juvenile salmonids did not occur at this site in 2015. Pass-through PIT antennas were not installed at the outlet of the pond in 2015.
3/1/2015 12:00:00 PM SiteDown Interrogation event log for the Mid Valley Pond (MVP) – 2015 The Mid Valley Acclimation Pond was not utilized by the Yakama Nation Fisheries in 2015. The Yakama Nation Fisheries will acclimate juvenile coho to this site in 2019 and into the foreseeable future.
6/26/2014 11:58:51 AM General Interrogation event log for the Mid-Valley Pond Acclimation Site (MVP)-2014 release PIT tag interrogation system (Antenna A) for the Mid-Valley Pond, began interrogation on 03-19-2014 at 1000 hrs.  Antenna A was located approximately 15 meters downstream of the pond outlet culvert.  Antenna A was never moved but was discovered to be off when checked on 04-26-2014 at 0556 hrs. Antenna A was immediately turned back on.  A total of seven files were downloaded throughout antenna A’s interrogation period. PIT tag detection was observed prior to our release date of 04-21-2014.  These escapes, are believed to be attributed to either an Otter or as a result of intense winds, which at times could lift the lead line allowing coho to escape.  The last download for this antenna occurred on 04-28-2014 at 1335 hrs, following a three day period of no PIT tag detections, as well as a snorkel survey to confirm the pond was void. PIT tag interrogation system (Antenna B) for the Mid-Valley Pond, began interrogation on March 19, 2014 at 1000 hrs.  Antenna B was located approximately 5 meters downstream of antenna A.  Antenna B was never moved and did not experience any lapse in coverage.   A total of six files were downloaded throughout antenna B’s interrogation period. We were unable to successfully download our final file on 04-28-2014, due to a malfunction of the transceiver. The last successful download for this antenna, occurred on 04-24-2014 at 1435 hrs. This transceiver was pulled on 04-28-2014, following a three day period of no PIT tag detections, as well as a snorkel survey to confirm the pond was void. PIT tag interrogation system (Antenna C) for the Mid-Valley Pond, began interrogation on March 19, 2014 at 1000 hrs.  Antenna C was located approximately 5 meters downstream of antenna B.  Antenna C did not experience any lapse in coverage but was moved 10 ft downstream on 04-15-2014 at 1200 hrs.  A total of seven files were downloaded throughout antenna C’s interrogation period.  The last download for this antenna occurred on 04-28-2014 at 1335 hrs, following a three day period of no PIT tag detections, as well as a snorkel survey to confirm the pond was void.

Archived Event Logs