Operational Plan: Kenai River and Kasilof River Chinook Salmon Sonar Assessment, 2023-2025 PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Operational Plan: Kenai River and Kasilof River Chinook Salmon Sonar Assessment, 2023-2025 PDF full book. Access full book title Operational Plan: Kenai River and Kasilof River Chinook Salmon Sonar Assessment, 2023-2025 by Brandon H. Key. Download full books in PDF and EPUB format.
Author: Brandon H. Key
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 0
Get Book Here
Book Description
Alaska Department of Fish and Game (ADF&G) has monitored Chinook salmon (Oncorhynchus tshawytscha) passage in the Kenai River using side-looking sonar technology from 1987 to present at historical (1987–2012) and modern (2013–present) sites and with multiple updated sonar technologies. Starting in 2018, a similar sonar program to monitor Chinook salmon at the nearby Kasilof River was begun as well. This plan covers sonar project operations at Kenai RM 13.7 and Kasilof RM 8 for the 2023–2025 seasons with the goal of producing daily inseason net passage estimates of fish 75 cm or longer for the Kenai River and postseason net upstream passage estimates of fish 75 cm or longer for the Kasilof river.
Author: Brandon H. Key
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 0
Get Book Here
Book Description
Alaska Department of Fish and Game (ADF&G) has monitored Chinook salmon (Oncorhynchus tshawytscha) passage in the Kenai River using side-looking sonar technology from 1987 to present at historical (1987–2012) and modern (2013–present) sites and with multiple updated sonar technologies. Starting in 2018, a similar sonar program to monitor Chinook salmon at the nearby Kasilof River was begun as well. This plan covers sonar project operations at Kenai RM 13.7 and Kasilof RM 8 for the 2023–2025 seasons with the goal of producing daily inseason net passage estimates of fish 75 cm or longer for the Kenai River and postseason net upstream passage estimates of fish 75 cm or longer for the Kasilof river.
Author: Nicholas A. Decovich
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 0
Get Book Here
Book Description
This study will conduct a sonar count of the Yentna River drainage Chinook salmon (Oncorhynchus tshawytscha) run to Lake Creek and collect age data from the greater Yentna River run with fish wheels at river mile (RM) 6. Radio tags deployed at RM 6 will measure the proportion of the Yentna River run returning to Lake Creek. Data from this project will be incorporated into a run reconstruction model and spawner–recruit analysis to enable a better estimate of the run and escapement to the Yentna River.
Author: Jenny L. Gates
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 0
Get Book Here
Book Description
The Russian River sockeye salmon escapement assessment project, which began in 1962, is one of the oldest stock assessment projects in the state of Alaska. During 2023–2026, the Russian River weir will be operated annually from early June through the first 7 to 10 days of September. All species of fish seen passing the weir through the fish chute will be enumerated daily. Sampling of sockeye salmon for age, sex, and length data will be done each Friday, and the sample size each week will be based on the previous week’s fish passage. Sockeye and Chinook salmon spawning downstream of the Russian River weir to the confluence of the Russian River and the Kenai River will be assessed by a foot survey during the fourth week of August. Multiple foot surveys will also be conducted from mid-May to 10 June to assess spawning rainbow trout.
Author: Brandon H. Key
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 130
Get Book Here
Book Description
Alaska Department of Fish and Game (ADF&G) has monitored Chinook salmon (Oncorhynchus tshawytscha) passage in the Kenai River using side-looking sonar technology from 1987 to present. The historical site at RM 8.6 used dual-beam (1987–1994), split-beam (1995–2011), and dual-frequency identification sonar or “DIDSON” (2012–2014) technology. Starting in 2013, ADF&G began operating adaptive resolution imaging sonar or “ARIS” at a new site located at RM 13.7. The RM 8.6 site was discontinued following the 2014 season in favor of data collection at the RM 13.7 site. This plan covers RM 13.7 project operations for the 2020–2022 seasons.
Author: Brandon H. Key
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 124
Get Book Here
Book Description
Adaptive resolution imaging sonars (ARIS) are used to produce inriver abundance estimates of Kenai River early- and late-run Chinook salmon Onchorhynchus tshawytscha and Kasilof River late-run Chinook salmon. These sonars can be used to produce inseason estimates of fish 75 cm mid eye to tail fork length (METF) or longer, and when used over the entire run, can be used in conjunction with test fish data to produce postseason abundance estimates of all Chinook salmon regardless of size. Sonar estimates of Chinook salmon inriver passage provide the basis for estimating spawning escapement and implementing management plans that regulate harvest in the competing fisheries for these stocks.
Author: Eric Wood
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 43
Get Book Here
Book Description
A creel survey will be conducted to estimate sport angler effort, catch, and harvest of large (≥75 cm mid eye to tail fork length) early- and late-run Chinook salmon in the lower Kenai River between the Warren Ames Bridge (river mile [RM] 5.1) and Slikok Creek sanctuary area (RM 18.6). Creel survey estimates will be geographically stratified in relation to the RM 13.7 Kenai River Chinook salmon sonar to provide angler effort, catch, and harvest of large Chinook salmon. A standardized inriver netting project will be conducted in the Kenai River at RM 8.6 to index abundance and estimate the age, sex, and length (ASL) composition of large early- and late-run Chinook salmon. Inseason estimates of Chinook salmon catch and harvest, used in conjunction with sonar passage estimates, inseason catch rates, and the length of returning Chinook salmon from the inriver netting study are used by fisheries managers for inseason management decisions to achieve escapement goals. This plan covers the creel survey and inriver netting studies for the 2021–2023 seasons.
Author: Debby L. Burwen
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 57
Get Book Here
Book Description
Author: William J. Glick
Publisher:
ISBN:
Category : Escapement (Fisheries)
Languages : en
Pages : 0
Get Book Here
Book Description
Dual-frequency Identification Sonar (DIDSON; Belcher et al. 2002) is used annually to estimate sockeye salmon Oncorhynchus nerka passage into the Kenai River of Upper Cook Inlet (UCI), Alaska (Figure 1). Adaptive Resolution Imaging Sonar (ARIS) is used to estimate sockeye salmon passage into the Kasilof River. Both multi-beam sonar systems are manufactured by Sound Metrics Corporation with ARIS being an upgraded replacement of the DIDSON. Sonar passage estimates of sockeye salmon are used for inseason management of UCI commercial fisheries, as well as personal use fisheries in the Kenai and Kasilof rivers, to achieve established escapement goals and inriver run goals. The current sustainable escapement goal (SEG) for sockeye salmon in the Kenai River is 750,000–1,300,000 fish. The inriver goal for sockeye salmon in the Kenai River is 1,000,000–1,200,000 fish if the forecasted return estimate is 2,300,000; 1,100,000–1,400,000 fish for a forecasted return of 2,300,000–4,600,000; and 1,200,000–1,600,000 fish for a forecasted return of 4,600,000 (Marston and Frothingham In prep). The Kasilof River optimal escapement goal (OEG) is 140,000–370,000 sockeye salmon, with a biological escapement goal (BEG) of 140,000–320,000. (McKinley et al. 2020). Fish wheels are used to capture migrating salmon for 1) species apportionment; 2) to estimate age, length, and sex composition of the sockeye salmon escapement; and, 3) to collect genetic samples as needed. Historical sonar passage and escapement data for the Kenai and Kasilof rivers (Table 1) is provided in yearly Regional Information and Fishery Data Series reports as exhibited by Glick and Marston (In prep). This plan outlines how sonar sampling and logistical operations will be conducted for each of these sonar enumeration sites.
Author: Daryl Lescanec
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 22
Get Book Here
Book Description
This project will assess weir passage and age and sex structure of Chinook and coho salmon runs in the Little Susitna River. The information collected during this project will allow for inseason management of these runs and provide long-term data for escapement goal analysis. A resistance-board weir will be operated at river mile 32.5 of the Little Susitna River to count Chinook and coho salmon, as well as other species present. A subset of Chinook and coho salmon passing the weir will be trapped and sampled for sex, length, and age (Chinook salmon only) data. Water level, temperature, and clarity, number of boats passing, and angler interviews will also be recorded.
Author: Adam M. Reimer
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 63
Get Book Here
Book Description
The primary purpose of this research is to provide an estimate of Chinook salmon abundance entering the Kenai River that is independent of existing sonar programs. These estimates of abundance will be used, in conjunction with sonar based estimates of abundance to develop escapement goals for Kenai River Chinook salmon. A secondary purpose of this research is to monitor Chinook salmon migration within the Kenai River drainage for the purpose of informing management decisions with respect to time and area.
