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7 results for “Feather River”
Monitoring juvenile Chinook salmon outmigration using rotary screw traps on the Lower Feather River
CDFW issued Incidental Take Permit No. 2081-2019-006-00 (ITP) to the California Department of Water Resources (DWR) on March 31, 2020, for the long-term operation of the State Water Project (SWP) in the Sacramento San Joaquin Delta (Delta). Condition 7.5.2 of the ITP requires the development and establishment of a spring-run Chinook salmon (Oncorhynchus tshawytscha) juvenile production estimate (JPE) to increase understanding of the impacts that water operations have on the spring-run Chinook salmon population in the Sacramento River watershed and to inform the development of minimization measures to reduce take of spring-run Chinook salmon at Delta fish salvage facilities. As a part of the JPE effort, CDFW began operating a new rotary screw trap (RST) monitoring station on the lower Feather River near River Mile 17, approximately 1 mile downstream of Star Bend Park and Boat Ramp near Olivehurst, in January 2022. This RST location represents the lowest point in the Feather River Watershed where juvenile salmon are sampled with an RST prior to entering the Sacramento River and includes salmon emigrating from the Yuba River. The expanded juvenile monitoring effort will help resource agencies and water managers identify numbers of salmon emigrating from the Feather River Watershed and contributing to the spring-run Chinook salmon population entering the Delta. Monitoring is conducted annually from October through June utilizing a pair of eight-foot rotary screw traps (RST). Data collected at the Lower Feather River RST site provides information on the temporal distribution, relative abundance, and race composition of juvenile Chinook salmon; and temporal distribution and relative abundance of steelhead trout (O. mykiss) emigrating from the Feather River and tributaries, including the Yuba River, to the Delta. Salmonid data collected from the Lower Feather River RST, among other datasets, is also used by the Salmon Monitoring Team (SaMT) to understand the movement of ju
Distribution and habitat use of juvenile steelhead and other fishes of the lower Feather River
Understanding how fish presence is related to habitat features is useful in restoration planning and monitoring as better information about how fish use habitat may lead to more impactful restoration projects. The California Department of Water Resources (DWR), conducted a two-year study of microhabitat and mesohabitat in Feather River. The goal of this study was to identify relationships between habitat conditions (depth, substrate, velocity, and cover) and where juvenile Chinook salmon and steelhead occur. Snorkel surveys were conducted monthly March through August in 2001 and 2002 across 29 different sites, which were selected at random (13 in Low Flow Channel, and 16 in High Flow Channel). Each sampling section covered an area 25 meters long by 4 meters wide, running parallel to riverbank. These data were published to support the Healthy Rivers and Landscapes Science Program.
Redd survey data of Chinook salmon in the Feather River
Since 2014, the California Department of Water Resources (DWR) has conducted annual Chinook salmon redd surveys. The objective of this data collection effort is to quantify and understand potential shits in redd distribution and potential habitat differences between historic and restored sites. The redd surveys are conducted in the uppermost 16 miles of the lower Feather River though have been concentrated in the uppermost two miles of the lower Feather River in, and adjacent to the Gravel Supplementation Areas (GSAs). Redd surveys are conducted less frequently in the 14 miles downstream of the GSAs. Surveys typically begin in mid-September at the onset of spawning and generally conclude at the end of November. This dataset represents an extensive time series that could be used to identify habitat conditions where Chinook salmon spawn, how these conditions have changed over time, especially in areas where restoration has occurred. These data were published to support the Healthy Rivers and Landscapes Program.
Monitoring juvenile Chinook salmon outmigration using rotary screw traps on Feather River
California Department of Water Resources (DWR) currently operates multiple eight-foot rotary screw traps (RSTs) in both the Low Flow Channel (LFC) and High Flow Channel (HFC) of the upper 21.5 river miles of the Lower Feather River. The LFC extends from the Fish Barrier Dam at river mile (RM) 67.2 to the Thermalito Outlet (RM 59). The HFC extends from the Thermalito Outlet to the confluence with the Sacramento River. This survey has been ongoing since 1997 with the objective of documenting general salmonid emigration attributes, such as timing, abundance and composition of salmon and investigating the influence of environmental factors thought to initiate emigration, such as flow, turbidity and water temperature. Data from this monitoring will also be used to inform the development of a juvenile production estimate (JPE) for spring-run Chinook salmon in the Sacramento River Watershed as required by Incidental Take Permit No. 2081-2019-006-00 issued by CA Department of Fish and Wildlife (CDFW) to DWR for the long-term operation of the State Water Project. Data within the current year’s monitoring season are considered provisional.
Distribution and habitat use of juvenile Feather River salmonids: 25 years and ongoing of snorkel surveys
Since 1999, the California Department of Water Resources (DWR) has conducted annual snorkel surveys to monitor juvenile salmon on the Feather River. The objective of this data collection effort is to determine the relative abundance and distribution of rearing juvenile Chinook salmon and steelhead. A secondary objective is to collect baseline data for future monitoring programs associated with habitat restoration projects. Crews survey units within 20 sampling sections on the high flow (HFC) and low flow channel (LFC) between January and September and collect information on species, fish size, substrate, cover, and habitat type. This dataset represents an extensive time series that could be used to identify habitat conditions where juvenile Chinook salmon and steelhead occur and how these conditions have changed over time. These data were published to support the Healthy Rivers and Landscapes Program.
Рис. 1. Схема точек отбора проб на ООПТ в бассейне Амура Fig. 1. Map of sampling points at the protected areas in the Amur River Basin in Molting feathers and eggshells in monitoring rare bird species populations: Evidence from special protected natural territories
Рис. 1. Схема точек отбора проб на ООПТ в бассейне Амура Fig. 1. Map of sampling points at the protected areas in the Amur River Basin
Рис. 11. ВыΛупΛение в гнёзΑах скаΛьных гоΛубей Columba rupestris. Уссурийский гороΑской округ, окрестности сеΛа НовоникоΛьск. 1–3 — 27.03.2022; 4 — 03.05.2022. Фото À. В. Коробова Fig. 11. Hatching in the nests of hill pigeons Columba rupestris. Ussuriysky City District, vicinity of the village of Novonikolsk. 1–3 — 27.03.2022; 4 — 03.05.2022. Photo by D. V. Korobov растений (нереΑко жестких, в частности, ΑопоΛнитеΛьно испоΛьзоваΛи сухие Λистья, поΛыни Artemisia sp.). Часто в гнезΑах при- пропиΛеновые нити, кусочки поΛиэтиΛена, сутствуют перья (преимущественно махо- а 3 мая 2022 гоΑа в окрестностях сеΛа Новые) скаΛьных, реже сизых гоΛубей и Αру- воникоΛьск быΛо найΑено гнезΑо, основу гих птиц. В некоторых Αругих сΛучаях в которого составΛяΛи обгоревшие кусочки качестве строитеΛьного материаΛа гоΛуби корΑа автомобиΛьного коΛеса, сожженного Рис. 12. ГнёзΑа скаΛьных гоΛубей Columba rupestris. 1 — с оперенными птенцами, Пограничный район, мост через реку СтуΑёная, 12.07.2007, фото À.В. Коробова; 2 — посΛе выΛета птенцов, Δазовский район, мост через кΛюч ЗвёзΑочка, 25.05.2022, фото В. П. Шохрина Fig. 12. Nests of hill pigeons Columba rupestris. 1 — with feathered chicks, Pogranichny District, bridge over the Studenaya River, 12.07.2007. Photo by D.V. Korobov; 2 — after the chicks have flown out, Lazovsky District, bridge over Zvezdochka Spring, 25.05.2022. Photo by V. P. Shokhrin in About breeding biology of the hill pigeon Columba rupestris in Primorsky Krai
Рис. 11. ВыΛупΛение в гнёзΑах скаΛьных гоΛубей Columba rupestris. Уссурийский гороΑской округ, окрестности сеΛа НовоникоΛьск. 1–3 — 27.03.2022; 4 — 03.05.2022. Фото À. В. Коробова Fig. 11. Hatching in the nests of hill pigeons Columba rupestris. Ussuriysky City District, vicinity of the village of Novonikolsk. 1–3 — 27.03.2022; 4 — 03.05.2022. Photo by D. V. Korobov растений (нереΑко жестких, в частности, ΑопоΛнитеΛьно испоΛьзоваΛи сухие Λистья, поΛыни Artemisia sp.). Часто в гнезΑах при- пропиΛеновые нити, кусочки поΛиэтиΛена, сутствуют перья (преимущественно махо- а 3 мая 2022 гоΑа в окрестностях сеΛа Новые) скаΛьных, реже сизых гоΛубей и Αру- воникоΛьск быΛо найΑено гнезΑо, основу гих птиц. В некоторых Αругих сΛучаях в которого составΛяΛи обгоревшие кусочки качестве строитеΛьного материаΛа гоΛуби корΑа автомобиΛьного коΛеса, сожженного Рис. 12. ГнёзΑа скаΛьных гоΛубей Columba rupestris. 1 — с оперенными птенцами, Пограничный район, мост через реку СтуΑёная, 12.07.2007, фото À.В. Коробова; 2 — посΛе выΛета птенцов, Δазовский район, мост через кΛюч ЗвёзΑочка, 25.05.2022, фото В. П. Шохрина Fig. 12. Nests of hill pigeons Columba rupestris. 1 — with feathered chicks, Pogranichny District, bridge over the Studenaya River, 12.07.2007. Photo by D.V. Korobov; 2 — after the chicks have flown out, Lazovsky District, bridge over Zvezdochka Spring, 25.05.2022. Photo by V. P. Shokhrin
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