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43 results for “fish passage”
Fig. 10 in Is fish passage technology saving fish resources in the lower La Plata River basin?
Fig. 10. Fish distribution and density in the tailwater of Salto Grande Dam. a) Depth distribution. b) Areas of maximum fish concentration (16 fish/m2), November, 2002, with opened spillway. c) Areas of maximum fish concentration (29 fish/m2) November, 2000, with closed spillway. D - bubble area produced by spillway. E - fishway entrances.
Fig. 8 in Is fish passage technology saving fish resources in the lower La Plata River basin?
Fig. 8. Paired comparisons of species composition for the tailrace (T), lower chamber (LC) and upper chamber (UC) at different sampling periods (adapted from Espinach Ros et al., 1997).
Fig. 4 in Is fish passage technology saving fish resources in the lower La Plata River basin?
Fig. 4. Percent composition for important migratory fish species sampled in the Yacyreta elevators including dorado (Salminus brasiliensis), sábalo (Prochilodus lineatus), pacu (Piaractus mesopotamicus), boga (Leporinus obtusidens), and surubi (Pseudoplatystoma corruscans and P. fasciatum).
Fig. 2 in Is fish passage technology saving fish resources in the lower La Plata River basin?
Fig. 2. Species composition of fishes sampled in the Yacyreta elevators. Data from 1995-1997 adapted from Oldani et al., (2002) and from 2000-2001 adapted from Roncati et al. (2000; 2001).
Fig. 1 in Is fish passage technology saving fish resources in the lower La Plata River basin?
Fig. 1. Geographic location of Yacyretá Dam (Parana River) and Salto Grande Dam (Uruguay River) and fishway details. Location map and project features for Yacyreta and Salto Grande dams.
Fig. 6. a in Is fish passage technology saving fish resources in the lower La Plata River basin?
Fig. 6. a) Depth (m) distribution in the tailwater of Yacyreta Dam. b) Areas of maximum density (> 0.2 fish/m2) with spillway closed. Data recorded at midday and dusk from July, 1997 to June, 1998. E - fishway entrances; MS - main spillway.
Fig. 7 in Is fish passage technology saving fish resources in the lower La Plata River basin?
Fig. 7. Proportion of species grouped by order that were sampled in the tailrace and never sampled in the Borland locks of Salto Grande Dam.
Fig. 5 in Is fish passage technology saving fish resources in the lower La Plata River basin?
Fig. 5. Water velocities in right and left collection channels of the Yacyreta fish passage system. RCCS: Right crowder channel section; RICS: right intermediate channel section; RECD: right entrance channel section; LCCS: left crowder channel section; LICS: left intermediate channel section; LECS: left entrance channel section.
Fig. 4 in Can north american fish passage tools work for South american migratory fishes?
Fig. 4. Comparison of 3-D tagged (left) and virtual (right) emigrant tracks for Lower Granite Dam 2003 RSW. Dam operation described in Goodwin et al. (2006). CFD model depiction of forebay hydrodynamic pattern in Fig. 5. Acoustic-tag emigrant track provided by U.S. Geological Survey (Cash et al., 2005).
Fig. 3 in Can north american fish passage tools work for South american migratory fishes?
Fig. 3. Project features at Lower Granite Dam on the Snake River, WA USA for 2000 and 2003 studies [A]. The Behavioral Guidance Structure (BGS) is intended to guide emigrants to the Surface Bypass Collector (SBC) and occlude them from the 3 turbine intakes nearest the shore. In 2003, a Removable Spillway Weir (RSW) was deployed in the spillbay nearest the powerhouse in lieu of the SBC; the BGS was also removed. Acoustic-tag emigrant track (green in [B]) provided by U.S. Geological Survey (Cash et al., 2002). CFD model depiction of forebay hydrodynamic pattern for [B], [C] and [D] in Fig. 5a.
FishPass Sortable Attribute Database: Phenological, morphological, physiological, and behavioural characteristics related to passage and movement of Great Lakes fishes
<p>In-stream barriers pose threats to fishes, including habitat loss, constraints on migration, and reduced connectivity between populations. Despite many negative consequences, barriers can serve to protect native species by limiting the spread of invasive species. For example, in the Laurentian Great Lakes, physical barriers have long been used to control invasive Sea Lamprey (<em>Petromyzon marinus</em>) populations by limiting access to potential upstream spawning and rearing habitat. Selective fish passage systems could solve this connectivity conundrum but must efficiently pass multiple native or desirable species while blocking invasive species. Designing such fish passage systems requires an understanding of the phenology, morphology, physiology, and behaviour (attribute dimensions) of fishes in the community. Here, we describe the first comprehensive collection of sortable attributes associated with fish passage. The integrated database consists of 21 biological attributes that influence the movement and passage of 220 species in the Great Lakes. Data coverage varies with species, taxonomic orders, and attribute dimensions. Behavioural attributes were typically underrepresented in the literature and the ecology of potential invaders was not well understood. The synthesis described herein is a critical step towards a holistic approach to fish passage design and may help to inform management actions related to population connectivity.</p>
Fig. 2 in Fish passage post-construction issues: analysis of distribution, attraction and passage efficiency metrics at the Baguari Dam fish ladder to approach the problem
Fig. 2. Schematic view of the Baguari Dam with the positioning of the fish ladder entrance.
Fig. 1 in Fish passage post-construction issues: analysis of distribution, attraction and passage efficiency metrics at the Baguari Dam fish ladder to approach the problem
Fig. 1. Location of Baguari Dam in the middle Doce River Basin, Minas Gerais State, Brazil.
Fig. 3 in The fish fauna in the fish passage at the Ourinhos Dam, Paranapanema River
Fig. 3. Closing the pool for the emptying operation.
Fig. 1 in Efficiency and selectivity of a trap and truck fish passage system in Brazil
Fig. 1. Mucuri basin, indicating the location of Santa Clara Dam.
Fig. 3 in Is fish passage technology saving fish resources in the lower La Plata River basin?
Fig. 3. Percentage of target species in the right and left elevators in Yacyreta Dam.
FishPass Sortable Attribute Database: Phenological, morphological, physiological, and behavioural characteristics related to passage and movement of Great Lakes fishes
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Santa Barbara Channel fish surveys at deep reefs: Footprint, Piggy Bank, Anacapa Passage
The dataset contains fish surveys from deep natural reefs in the northern Santa Barbara Channel Islands, Southern California, mainly at reefs named Piggy Bank, Footprint (local names) and Anacapa Passage. Data collection began in 1995. Reefs are located at depths between 30 and 360 m (100 and 1,180 feet). Sampling was by the manned submersibles Delta and DualDeepworker and an unmanned Remotely Operated Vehicle (ROV). These sites included a wide range of such habitats as banks, ridges, and carbonate reefs, ranging in size from a few kilometers in length to less than a hectare in area. On these features, we focused on hard bottom macrohabitats, including kelp beds, boulder and cobble fields, and bedrock outcrops. Transects were not deliberately revisited; some reefs were surveyed as many as four times per year. All transects are 2 m wide; transect length varied (see data). The dataset includes two tables: (1) the fish counts at Piggy Bank, Footprint, and Anacapa Passage; and (2), the habitat associated with each of the survey segments. Fishes were identified to lowest possible taxon (usually species), and verified against the WoRMs database (http://www.marinespecies.org/).
Data from: A toolkit for optimizing fish passage barrier mitigation actions
The presence of dams, stream–road crossings and other infrastructure often compromises the connectivity of rivers, leading to reduced fish abundance and diversity. The assessment and mitigation of river barriers is critical to the success of restoration efforts aimed at restoring river integrity. In this study, we present a combined modelling approach involving statistical regression methods and mixed integer linear programming to maximize resident fish species richness within a catchment through targeted barrier mitigation. Compared to existing approaches, our proposed method provides enhanced biological realism while avoiding the use of complex and computationally intensive population/ecosystem models. To estimate barrier passability quickly and at low cost, we further outline a rapid barrier assessment methodology. The methodology is used to characterize potential passage barriers for various fish species common to the UK but can be readily adapted to different planning areas and other species of interest. We demonstrate the applicability of our barrier assessment and prioritization approach based on a case study of the River Wey, located in south-east England. We find that significant increases in species richness can be achieved for modest investment in barrier mitigation. In particular, dams and weirs with low passability located on mid- to high-order streams are identified as top priorities for mitigation. Synthesis and applications. Our study shows the benefits of combining a coarse resolution barrier assessment methodology with state-of-the-art optimization modelling to cost-effectively plan fish passage barrier mitigation actions. The modelling approach can help inform on-the-ground river restoration decision-making by providing a recommended course of action that best allocates limited resources in order to restore longitudinal connectivity and maximize ecological gains.
Reservoir operating rules to create effective fish migration passages in a reservoir [Dataset]
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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.