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1,140 results for “feathers”
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.
Yellow-feathered broilers Testes Manuscript Figures and Table 1_Supplamentary Materials
<p>The compressed Zip file contains Table 1 of the manuscript to serve as Supplementary Materials for Article publication in addition to all manuscript Figures.</p> <p>Figures presenting Graphs of the Testes and Seminiferous tubules Morphometry have been added.</p>
Cape Sable Seaside Sparrow (Ammospiza maritima mirabilis) breast feather total mercury concentrations from the Florida Everglades, Florida, USA: breeding seasons 2016 - 2018
This dataset was used to determine hydrologic parameters influencing Cape Sable Seaside Sparrow (CSSS) mercury exposure and potential mercury effects on their reproductive success in the Florida Everglades. We collected breast feathers for total mercury determination from juvenile and adult CSSS during (or shortly after) three breeding seasons (March 1 to July 31) and monitored the same individuals' breeding performance (mate status, number of nest attempts, number of successful nest attempts, total productivity of nests, clutch size, total count of eggs, and hatch success). Hydrologic parameters (average water depths, drought length, water recession rate, and hydroperiod) were estimated using the Everglades Depth Estimation Network and in situ depth measurements. Data collection is complete.
Fig. 6 in Discometra luberonensis sp. nov. (Crinoidea, Himerometridae), a new feather star from the Late Burdigalian
Fig. 6. Calices of Discometra rhodanica (Fontannes, 1877) from Picabrier. A. Aboral oblique view of centrodorsal, largest specimen (MHNL 20.062686). B. Adoral oblique view, smallest specimen (MHNL 20.062688). C–D. Specimen of intermediate size (MHNL 20.062687). C. Adoral oblique view. D. Aboral oblique view. Scale bars = 1 mm.
Fig. 5 in Discometra luberonensis sp. nov. (Crinoidea, Himerometridae), a new feather star from the Late Burdigalian
Fig. 5. Late Burdigalian specimens attributed to Discometra rhodanica (Fontannes, 1877) by de Loriol (1897). A–B. Neotype of D. rhodanica from Notre-Dame du Château (MASR 2020.5011). A. Oblique aboral view of centrodorsal. B. Oblique adoral view of calyx (arrow = sub-rectangular low ridge). C–E. Unidentified Comatulidae Fleming, 1928. C. Adoral face of a centrodorsal from Entrechaux – ʻFerme Pieʼ (MHNL 20.062689). D-E. Radial circlet from Notre-Dame du Château (MASR 2020.5021). Scale bars = 1 mm.
Fig. 1 in Discometra luberonensis sp. nov. (Crinoidea, Himerometridae), a new feather star from the Late Burdigalian
Fig. 1. The Miocene Rhône-Provence Gulf (modified from Philippe 1998: fig.1). A = submarine or emerging shoals; B = limit of the Rhône-Provence Gulf; C = estimated limit of the Burdigalian transgression. Sites with Discometra Gislèn, 1924 cited in the text are indicated as follows: black star = Ménerbes-Lacoste Plateau; 1 = Bollène; 2 = Les Angles; 3 = Caumont-sur-Durance (Picabrier); 4 = Notre-Dame du Château; 5 = Entrechaux.
Fig. 4 in Discometra luberonensis sp. nov. (Crinoidea, Himerometridae), a new feather star from the Late Burdigalian
Fig. 4. Cross sections near aboral surface of radial circlet showing Y-shaped coelomic canals in the genus Discometra Gislèn, 1924. A. Discometra rhodanica (Fontannes, 1877). B. Discometra eggenburgensis (Schaffer, 1912). Modified from Sieverts-Doreck (1961) in which A was modified from Fontannes (1880).
Fig. 3 in Discometra luberonensis sp. nov. (Crinoidea, Himerometridae), a new feather star from the Late Burdigalian
Fig. 3. Centrodorsal and radials in Himerometridae A.H. Clark, 1908. A–D. Himerometra robustipinna (Carpenter, 1881) (MNHN-IE-2012-862). A. Adoral side of centrodorsal. B. Cirrus sockets on lateral face of centrodorsal. C–D. Radials. C. Adoral view showing vermiculate grooves on inner face. D. Distal articular facet. E. Discometra rhodanica (Fontannes, 1877) from Picabrier (MHNL 20.062687), cirrus sockets on centrodorsal. Scale bars: A–D = 1 mm; E = 0.5 mm.
Fig. 2 in Discometra luberonensis sp. nov. (Crinoidea, Himerometridae), a new feather star from the Late Burdigalian
Fig. 2. Aboral view of the proximal crown and centrodorsal in three genera of Himerometridae A.H. Clark, 1908. A–F. Discometra luberonensis sp. nov., Late Burdigalian of Ménerbes-Lacoste Plateau. A–B. Holotype (MHNL 20.062682). C–D. Paratype (MHNL 20.056148). E–F. Paratype (MHNL 20-056151). G–H. Extant species of Himerometridae from western Pacific. G. Himerometra robustipinna (Carpenter, 1881) (MNHN-IE-2012-862). H. Heterometra savignii (Müller, 1841) (MNHN-IE-2016-1381). Scale bars: A–G = 10 mm; H = 5 mm.
Fig. 3 in Report of a Feather Mite Species (Acariformes: Astigmata) from the Oriental White Stork, Ciconia boyciana (Ciconiiformes: Ciconiidae), Belonging to the Japanese Native Population
Fig. 3. Pelargolichus orientalis, male (A) and female (B). A, right setae se and si on prodorsal shield, dorsal view; B, posterior part of hysterosoma, dorsal view. Scale bars: 10 µm.
Fig. 1 in Report of a Feather Mite Species (Acariformes: Astigmata) from the Oriental White Stork, Ciconia boyciana (Ciconiiformes: Ciconiidae), Belonging to the Japanese Native Population
Fig. 1. The taxidermy specimen of the Oriental White Stork Ciconia boyciana sampled in Toyooka City, Hyogo Prefecture, Japan.
Figure 6. Kramerella species—A-B in New records of feather mites (Sarcoptiformes: Astigmata) from some birds in Türkiye
Figure 6. Kramerella species—A-B. Kramerella aluconis, male and female, C. Kramerella lunulata, male (scale bars: 100).
Figure 3 in New records of feather mites (Sarcoptiformes: Astigmata) from some birds in Türkiye
Figure 3. Mites of the family Eustathiidae—A. Chauliacia securigera, male, B. Neochauliacia minuscula, male, C. Eustathia cultrifera, male (scale bars: 100).
Figure 2 in New records of feather mites (Sarcoptiformes: Astigmata) from some birds in Türkiye
Figure 2. Mites of the family Proctophyllodidae—A. Pterodectes rutilus, male (scale bar: 100), B-C. Proctophyllodes musicus, male (scale bar: 200) and female (scale bar: 100).
Data from: Feather corticosterone is lower in translocated and historical populations of the endangered Laysan duck (Anas laysanensis)
<p>Identifying reliable bioindicators of population status is a central goal of conservation physiology. Physiological stress measures are often used as metrics of individual health and can assist in managing endangered species if linked to fitness traits. We analysed feather corticosterone, a cumulative physiological stress metric, of individuals from historical, translocated, and source populations of an endangered endemic Hawaiian bird, the Laysan duck (<em>Anas laysanensis</em>). We hypothesised that feather corticosterone would reflect the improved reproduction and survival rates observed in populations translocated to Midway and Kure Atolls from Laysan Island. We also predicted less physiological stress in historical Laysan birds collected before ecological conditions deteriorated and the population bottleneck. All hypotheses were supported: we found lower feather corticosterone in the translocated populations and historical samples than in those from recent Laysan samples. This suggests that current Laysan birds are experiencing greater physiological stress than historical Laysan and recently translocated birds. Our initial analysis suggests that feather corticosterone may be an indicator of population status and could be used as a non-invasive physiological monitoring tool for this species with further validation. Furthermore, these preliminary results, combined with published demographic data, suggest that current Laysan conditions may not be optimal for this species.</p>
Fig. 3 in The First Report of the Feather Mite Pseudalloptinus milvulinus (Acariformes: Pterolichidae) from the Black Kite Milvus migrans in Japan
Fig. 3. Pseudalloptinus milvulinus, female (MPM Coll. No. 21696e). A, Dorsal view; B, ventral view; C, right setae c3 (ventral view).
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.