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57 results for “Stream ecology”
The Impact of Gulf Stream Frontal Eddies on Ecology and Biogeochemistry near Cape Hatteras
<p>This data goes along with the manuscript "The Impact of Gulf Stream Frontal Eddies on Ecology and Biogeochemistry near Cape Hatteras" available as a preprint at https://doi.org/10.1101/2023.02.22.529409 and under review in the Journal of Geophysical Research: Oceans. The code to analyze this data and generate the figures from the paper is available at: https://github.com/patrickcgray/gs_front_analysis (https://doi.org/10.5281/zenodo.7685135).</p>
The Hubbard Brook Stream Ecology Record: Algal Biomass (Chlorophyll-a), 2018 - ongoing
The Hubbard Brook Stream Ecology record is a companion dataset to the Hubbard Brook Watershed Stream and Precipitation Chemistry record. The Stream Ecology record started in 2018 and HBWatER collects ecological samples from seven gauged watersheds: Watersheds 1 through 6 and Watershed 9. HBWatER measures algal biomass, aquatic invertebrate emergence, and stream decomposition by measuring (1) chlorophyll-a on tiles and artificial moss, which approximate algal biomass growth on bare rock and bryophyte mats, (2) preserved algal biomass on artificial moss substrates in Lugol’s Iodine solution, (3) aquatic invertebrate emergence on replicate sticky traps placed above the stream, and (4) stream decomposition through leaf litter pack and cotton strip decay. To complement these ecological records, HBWaTER installed light sensors and field cameras to obtain better information about the light and stream environment daily. Three replicate light sensors that take sub-daily measurements of light level intensity are placed at each watershed at the weir pond (full-sun), and two under the canopy (partial shade). Field cameras take daily photos at noon of the stream canopy and the stream channel. While many studies at Hubbard Brook have measured algal biomass, aquatic invertebrates, and stream decomposition, they are scattered in locations across the valley, were performed at non-continuous times, and use various semi-comparable methods. The HBWatER Stream Ecology record was created to address this gap and systematically measure any long-term changes in the organisms living in the stream. The collection of HBWatER samples is currently sustained by Tammy Wooster (Cary IES) and analyses of these samples has been performed by Heather Malcom (Cary IES), Audrey Thellman (Duke), Steve Anderson (Duke), Geoff Wilson (Cary IES), and Adam Rok (Duke). The dataset is curated and maintained by a team of researchers: Chris Solomon (Cary IES), Emma Rosi (Cary IES), and Emily Bernhardt (Duke). Curr
The Hubbard Brook Stream Ecology Record: Light, 2018 - ongoing
The Hubbard Brook Stream Ecology record is a companion dataset to the Hubbard Brook Watershed Stream and Precipitation Chemistry record. The Stream Ecology record started in 2018 and HBWatER collects ecological samples from seven gauged watersheds: Watersheds 1 through 6 and Watershed 9. HBWatER measures algal biomass, aquatic invertebrate emergence, and stream decomposition by measuring (1) chlorophyll-a on tiles and artificial moss, which approximate algal biomass growth on bare rock and bryophyte mats, (2) preserved algal biomass on artificial moss substrates in Lugol’s Iodine solution, (3) aquatic invertebrate emergence on replicate sticky traps placed above the stream, and (4) stream decomposition through leaf litter pack and cotton strip decay. To complement these ecological records, HBWaTER installed light sensors and field cameras to obtain better information about the light and stream environment daily. Three replicate light sensors that take sub-daily measurements of light level intensity are placed at each watershed at the weir pond (full-sun), and two under the canopy (partial shade). Field cameras take daily photos at noon of the stream canopy and the stream channel. While many studies at Hubbard Brook have measured algal biomass, aquatic invertebrates, and stream decomposition, they are scattered in locations across the valley, were performed at non-continuous times, and use various semi-comparable methods. The HBWatER Stream Ecology record was created to address this gap and systematically measure any long-term changes in the organisms living in the stream. The collection of HBWatER samples is currently sustained by Tammy Wooster (Cary IES) and analyses of these samples has been performed by Heather Malcom (Cary IES), Audrey Thellman (Duke), and Geoff Wilson (Cary IES). The dataset is curated and maintained by a team of researchers: Chris Solomon (Cary IES), Emma Rosi (Cary IES), and Emily Bernhardt (Duke). Current Financial Support for HBWatER is pro
Hubbard Brook Stream Ecology Record: Diatom Species Richness and Voucher Flora, 2018-2022
This dataset contains species richness data for epiphytic diatom communities collected from weir ponds in seven headwater streams within the Hubbard Brook Experimental Forest (HBEF) in New Hampshire between 2018 and 2021. Diatom samples were gathered using artificial bryophyte substrates, deployed in weir ponds to mimic natural diatom habitats. Species richness was quantified by identifying diatom taxa to the lowest possible taxonomic level, with 86 taxa spanning 43 genera recorded. This dataset represents the first comprehensive classification of diatom communities at HBEF, providing a baseline for future studies in this ecosystem. Environmental variables, including light availability, dissolved organic carbon, total dissolved nitrogen, and pH, were concurrently measured to assess their influence on diatom community composition. The light (lux) data used in this study is openly available in the EDI Data Portal at https://doi.org/10.6073/pasta/0f40b75b299494d736645d940fa2b5a4. The chlorophyll-a data and analysis methodology are available at https://doi.org/10.6073/pasta/7fa32d94240fc7780d62cb7e65eafdb2. Reach characteristics were sourced from the EDI Data Portal at https://doi.org/10.6073/pasta/3e4b95149245341d522383bba51de7c7. This study provides valuable insights into the relationships between environmental factors and diatom diversity in northern hardwood forest streams, aiding ecological monitoring and bioindicator studies. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.
Supplementary data for "Ecological assessment of combined sewer overflow management practices through the analysis of benthic and hyporheic sediment bacterial assemblages of an intermittent stream"
<p><strong>Supplementary data for the Pozzi <em>et al.</em> paper entitled "Ecological assessment of combined sewer overflow management practices through the analysis of benthic and hyporheic microbial assemblages and a tracking of exogenous bacterial taxa in a peri-urban intermittent stream".</strong></p> <p># Created by Dr Adrien C. MEYNIER POZZI on June, 29th, 2023<br> # Part of DOmic research project funded by the Agence de l’Eau - Rhône Méditerranée Corse [AE-RMC, Project 2020 0702 DOmic, 2020-2023], and of the DOmic extension funded by the EUR H2O'Lyon [ANR-17-EURE-0018] of Université de Lyon<br> # Part of the Chaudanne river long-term experiment site belonging to the Observatoire de Terrain en Hydrologie Urbaine (OTHU)<br> # Part of the work conducted in the team on Opportinistic Bacterial Pathogen in the Environment (BPOE) led by Dr. Benoit Cournoyer<br> # Samples were obtained in 2 campaigns, corresponding to periods before (2010-2011) or after (2018) the implementation of the 91/271/EEC European Directive that limited Combined-Sewer Overflow (CSO) discharges to the Chaudanne river<br> # Samples consisted in surface water, benthic and hyporheic sediments taken in run, riffle and pool geomorphologic features, either upstream or downstream the CSO outlet, plus positive and negative controls</p> <table> <tbody> <tr> <td><strong>Metadata. Name and description of data tables provided as supplementary information</strong></td> </tr> <tr> <td><strong>Data Name</strong></td> <td><strong>Description</strong></td> </tr> <tr> <td>Data S1. River hydrology variables and hydraulic gradients at surveyed transects</td> <td>Array to describe the hydrologic variables and gradients at the studied transects. Top line is header, second line is metadata for each recorded variable, and third line is the unit of the variable, if any.</td> </tr> <tr> <td>Data S2. Environmental variables (water physical-chemistry, nutrients, FIBs, MTEs, PAHs) with metadata</td> <td>An array to list environmental variables for all true samples (n=90) included in the study. Sample identifiers and dates are provided. First 8 rows list the CAS number, SANDRE number, unit, method, limit of quantification and norm for each variable, if any.</td> </tr> <tr> <td>Data S3. Hydrological indices and synthetic variables computed with ClustOfVar</td> <td>Hydrological indices computed for the river flow, precipitations and CSO overflows computed over a 3-week period preceding each sampling date.</td> </tr> <tr> <td>Data S4. Discharge events selected to compute CSO dilution ratios</td> <td>An array to describe CSO events included for the computation of the CSO dilution ratio (SI Data 6A) together with 6 tables and 3 figures (SI Data 6B to 6J) describing the CSO event ratio all year round over the studied period, as well as for events that occurred before or after the CSO was modified and during low flow or high flow season. In SI Data 6A, top line is header and second line is metadata for each recorded variable.</td> </tr> <tr> <td>Data S5. Raw environmental matrix for use in R</td> <td>An array to list experimental design and environmental variables for all true samples and controls. Several environmental variables were synthetized using the ClustOfVar method (Chavent et al (2012) 10.18637/jss.v050.i13). Format is directly usable in R software.</td> </tr> </tbody> </table> <p> </p>
Fig. 4. Composite phylogenetic hypothesis for 33 in Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil
Fig. 4. Composite phylogenetic hypothesis for 33 stream fish species based on six different studies. Solid circles indicate six taxonomic groups that were significant in the canonical phylogenetic ordination (CPO); they are numerically labeled as follows: 1, Siluriformes/Characiformes; 2, Loricariidae; 3, Farlowella/Rineloricaria; 4, Characidae; 5, Hypostominae; 6, Pimelodella/Rhamdia.
Fig. 3 in Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil
Fig. 3. Projection of the first three PCA axes based on 14 ecomorphological attributes for the following fish species from the upper São Francisco River, Brazil: Apaibi, Apareiodon ibitiensis; Astriv, Astyanax rivularis; Cetihe, Cetopsorhamdia iheringi; Chafas, Characidium fasciatum; Crevar, Creagrutus aff. varii; Harnov, Harttia cf. novalimensis; Micsp, Microlepidogaster sp.; Neofra, Neoplecostomus franciscoensis; Piaarg, Piabina argentea; Tribra, Trichomycterus brasiliensis; Trirei, Trichomycterus reinhardti and Trivar, Trichomycterus variegatus. The figures in black indicate the most representative ecomorphotypes.
Fig. 2 in Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil
Fig. 2. Projection of the first two PCA axes based on 14 ecomorphological attributes for the following fish species from the upper Paraguai River, Brazil: Ancsp, Ancistrus sp.; Astasu, Astyanax asuncionensis; Astlin, A. lineatus; Astsp, Astyanax sp.; Chafas, Characidium fasciatum; Chazeb, C. zebra; Cremer, Creagrutus meridionalis; Farpar, Farlowella paraguayensis; Hyplue, Hyphessobrycon luetkenii; Hypbou, Hypostomus boulengeri; Hypcoc, Hypostomus cochliodon; Hypsp, Hypostomus sp.; Jupaca, Jupiaba acanthogaster; Moebon, Moenkhausia bonita; Moesan, M. sanctaefilomenae; Odopeq, Odontostilbe pequira; Parnas, Parodon nasus; Piator, Piabarchus torrenticola; Pimgra, Pimelodella gracilis; Rhaque, Rhamdia quelen; Rinlan, Rineloricaria lanceolata; and Sercal, Serrapinnus calliurus. The figures in black indicate the most representative ecomorphotypes.
Fig. 1 in Phylogenetic signal and major ecological shifts in the ecomorphological structure of stream fish in two river basins in Brazil
Fig. 1. Study area with the sampling sites at the upper Paraguai and upper São Francisco River basins. BOD: Serra da Bodoquena National Park; CAN: Serra da Canastra National Park; MG: Minas Gerais State; MS: Mato Grosso do Sul State; PG 1-6: sampling locations in the upper Paraguai River basin; SF 1-6: sampling locations in the upper São Francisco River basin.
Fig. 4 in Ontogenetic, spatial and temporal variations in the feeding ecology of Deuterodon langei Travassos, 1957 (Teleostei: Characidae) in a Neotropical stream from the Atlantic rainforest, southern Brazil
Fig. 4. MDS on the different sizes, sites and seasonal independent groups. The total length (Lt) categories compared were Juveniles (J = Lt <3 cm), Semi-adults (S = 3 8 cm). The three sites sampled along the catchment were: site 1 (P1), an upstream first order section of the basin near its spring; site 2 (P2), a second order middle section of the basin; and site 3 (P3), a downstream third order section of the basin. Seasons compared were: VER=summer (December, January and February), OUT=Autumn (March, April and May), INV=Winter (June, July andAugust) and Spring=PRI (September, October and November).
Fig. 5 in Ontogenetic, spatial and temporal variations in the feeding ecology of Deuterodon langei Travassos, 1957 (Teleostei: Characidae) in a Neotropical stream from the Atlantic rainforest, southern Brazil
Fig. 5. MDS on the different sizes, sites and seasonal groups. Total length (Lt) categories compared were Juveniles (J = Lt <3 cm), Semi-adults(S = 3 8 cm) and seasons were: VER=summer (December, January and February), OUT=Autumn (March, April and May), INV=Winter (June, July andAugust) and Spring=PRI (September, October and November).
Fig. 2 in Ontogenetic, spatial and temporal variations in the feeding ecology of Deuterodon langei Travassos, 1957 (Teleostei: Characidae) in a Neotropical stream from the Atlantic rainforest, southern Brazil
Fig. 2. Geographical location of the rio Ribeirão basin, with indication of the three sampling sites (P1, P2, and P3).
Fig. 3 in Ontogenetic, spatial and temporal variations in the feeding ecology of Deuterodon langei Travassos, 1957 (Teleostei: Characidae) in a Neotropical stream from the Atlantic rainforest, southern Brazil
Fig. 3. UPGMA cluster analysis using Morisita-Horn similarity coefficient on the different sizes, sites and seasonal groups. Total length (Lt) categories compared were Juveniles (J = Lt <3 cm), Semi-adults (S = 3 8 cm). The three sites sampled along the catchment were: site 1 (P1), an upstream first order section of the basin near its spring; site 2 (P2), a second order middle section of the basin; and site 3 (P3), a downstream third order section of the basin. The seasons are: VER=summer (December, January and February), OUT=Autumn (March, April and May), INV=Winter (June, July and August), and Spring=PRI (September, October, November). A (> 70 % similarity) = with a predominance of Autochthonous Insects, Allochthonous Insects and Non Identifiable Arthropod Parts; B (> 80 % similarity) = with a predominance of Detritus and Allochthonous and Autochthonous Insects; and C (> 80 % similarity)= with a predominance of Allochthonous plants and Detritus.
Fig. 1. Monthly rainfall for 2002 in Ontogenetic, spatial and temporal variations in the feeding ecology of Deuterodon langei Travassos, 1957 (Teleostei: Characidae) in a Neotropical stream from the Atlantic rainforest, southern Brazil
Fig. 1. Monthly rainfall for 2002 (x) and 2003 (filled triangles) in the study region, and average temperature in 2002 (filled squares) and 2003 (open squares). Source: IAPAR.
Fig. 1 in Feeding ecology of Rivulus luelingi (Aplocheiloidei: Rivulidae) in a Coastal Atlantic Rainforest stream, southern Brazil
Fig. 1. Location of the study site in Guaratuba Munipality (black square), Paraná State coast (southern Brazil).
Fig. 2 in Feeding ecology of Phalloceros anisophallos (Osteichthyes: Cyprinodontiformes) from Andorinha Stream, Ilha Grande, Brazil
Fig. 2. Comparison of alimentary index (IA i) of each food category consumed by Phalloceros anisophallos from córrego Andorinha (Ilha Grande, Rio de Janeiro) during the rainy (white bars) and dry (grey bars) seasons. Alg = autochthonous algae, AutoAn = autochthonous animal, AlloAn = allochthonous animal and Detr = detritus.
Fig. 1 in Feeding ecology of Phalloceros anisophallos (Osteichthyes: Cyprinodontiformes) from Andorinha Stream, Ilha Grande, Brazil
Fig. 1. Comparison between juvenile (white) and adult (grey) alimentary index (IA i) of each food category consumed by Phalloceros anisophallos from córrego Andorinha (Ilha Grande, Rio de Janeiro).
Fig. 3 in Scientific Note Feeding ecology of the leaf fish Monocirrhus polyacanthus (Perciformes: Polycentridae) in a terra firme stream in the Brazilian Amazon
Fig. 3. Prey size (total length, in mm) in relation to predator's size (standard length, in mm) for specimens of the leaf fish Monocirrhus polyacanthus (r2 = 0.44, F = 13.24, p = 0.002, Number of measured preys = 19).
Fig. 2 in Scientific Note Feeding ecology of the leaf fish Monocirrhus polyacanthus (Perciformes: Polycentridae) in a terra firme stream in the Brazilian Amazon
Fig. 2. Proportion of preys (fish and invertebrates) recorded in the stomach of the leaf fish Monocirrhus polyacanthus, by predator size classes (Number of stomachs with food = 19).
Fig. 3 in Feeding ecology of a stream fish assemblage in an Atlantic Forest remnant (Serra do Japi, SP, Brazil)
Fig. 3. Biomass (g.m-2) of the different trophic groups of fish at each collecting site in Serra do Japi (SP) streams.
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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
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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.