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502 results for “lagoons”
Surface Elevation Table Lagoon Data for Wachapregue marshes and north Mockhorn Island of the Virginia Coast Reserve 2002-2014
Dataset consists of a subset of all the USGS-sponsored data collected using the USGS Patuxent Wildlife Research Center "old style" SET arm, which began in Fall 1998. Because of changes made to the type of pins used (switched from brass pins to fiberglass in 2002), we present only the post-2002 data here. Each datum under "ELEVTN" variable is the mean SET elevation measured from 36 pins. In the Wachapreague marshes, three high marsh sites (short form Spartina alterniflora) were selected (Curlew Bay 1 (East)HM, Curlew Bay 2 (West)HM, and Gates BayHM), and three low-mid marsh sites (tall form Spartina) as well (same names, except MM as a suffix). About 20 miles south, at the north end of the Mockhorn Island Wildlife Management Area (state owned), only two low-mid marsh sites were selected - Mockhorn East and West.  The dataset does not include elevations taken at unvegetated "pond" sites as measurements were curtailed after 2003.Â
Residence time in lagoons on the coast of Virginia, 2002 and 2009
To better understand the factors controlling residence time and exchange in coastal bays, a three-dimensional finite-volume coastal ocean model (FVCOM) was set up, validated with field observations, and used to calculate residence times in a system of 14 shallow coastal bays on the Atlantic coast of the USA (Virginia Coast Reserve). Simulations were run using measured tide and with & without wind forcing for November 2002-January 2003 and January-March 2009. Residence times are determined by tracking a large number of neutrally buoyant particles in the FVCOM simulations. Particles were released each high and low tide for the first 30 days of the simulations (30 high-tide and 30 low-tide releases). Each value of residence time is the average elapsed time from when a particle was released to when it exited through an inlet to the ocean. Each line of the table corresponds to a site where particles were released.
Wave Dynamics and Fluid Stresses in Vegetated and Unvegetated Coastal Lagoons in Virginia, 2010-2011
Wave, turbulence and wind measurements were performed within a Zostra marina seagrass (eelgrass) meadow in South Bay, Virginia, USA a coastal bay within the Virginia Coast Reserve where ongoing seagrass restoration efforts are being performed, and in adjacent areas without seagrass. These datasets were published in: Hansen J.C.R. and Reidenbach M.A., 2013, Seasonal growth and senescence of a Zostera marina seagrass meadow alters wave-dominated flow and sediment suspension within a coastal bay, Estuaries and Coasts, 36, 1099-1114.
Morphometry of Atlantic Ocean Barrier Islands, Lagoons and Marshes 1978
This data set contains morphometric measures of the lagoons of the Atlantic Coast. The goal was to obtain a measure of the complexity of the marshes that filled the lagoons behind the barrier islands. ABSTRACT The width, depth, marsh cover, and marsh-water interfaces were recorded for the lagoons along the 2000 km of coast between Long Island, New York and Miami, Florida. Eigenvectors of these variables for 134 sites (cases) were calculated and analyzed to identify the characteristic variations of these morphometric attributes. Three modes of variation account for 88% of Ihe variance of the original data: the dominant mode contrasts wide, complex lagoons and narrow, simple lagoons. The second contrasts wide, simple with narrow, complex lagoons. A third mode contrasts wide, shallow, complex with narrow, deep lagoons with few marsh-water intersects. The first mode is correlated geographically with variations in the steepness and curvature of the inner portion of the continental shelf. Using variations in the morphometric attributes of the lagoon-marsh system and the fronting islands on the ocean side, the Atlantic coast barrier islands, lagoons, and marshes are classified into three regions and eight sub-regions. The concept of barrier island ''ensembles'' along the Atlantic coast is reviewed in terms of the island-lagoon marsh system and their covariation with offshore bathymetry. The concept of these ensembles is strongly supported.
SHYFEM set-up for model driven optimization of the tide gauge monitoring network in the Venice Lagoon
<p>This database include all configuration files, script and data for running the<br> simulations and elaborate the results presented in the work entitled "Model-driven<br> optimization of coastal sea observatories through data assimilation in a finite<br> element hydrodynamic model (SHYFEM v. 7_5_65)" to be submitted in Geoscientific Model<br> Development (GMD).</p>
Figure 1 in Bat species composition associated with restinga lagoons from the Paulo César Vinha State Park, Espírito Santo, Brazil
Figure 1. Location of the Paulo Cesar Vinha State Park – PEPCV within Brazil, State of Espírito Santo and Guarapari. Latter A and B are the Sampled point one (P1) and two (P2), letter C and D are Feia and Vermelha lagoon, respectively.
Figure 4 in Bat species composition associated with restinga lagoons from the Paulo César Vinha State Park, Espírito Santo, Brazil
Figure 4. Principal Component Analyses of the bat composition in the Paulo CesarVinha State Park – PEPCV,Espírito Santo,Brazil.Ordination was performed by species abundance and the matrix was transformed by Hellinger procedure.
Figure 3 in Bat species composition associated with restinga lagoons from the Paulo César Vinha State Park, Espírito Santo, Brazil
Figure 3. Observed and estimated bat species richness in the tree lagoons sampled in the Paulo Cesar Vinha State Park – PEPCV, Espírito Santo, Brazil. (A) 'Caraís' lagoon, (B) 'Feia' lagoon, (C) 'Vermelha' lagoon, and (D) Final observed and estimated species richness. Vertical bars represent 95% confidence intervals.
Antillean manatees feed on floating Halophila baillonii in Placencia Lagoon, Belize
<p>Supplementary Videos for upcoming article in the Latin American Journal of Aquatic Mammals titled: "Antillean manatees feed on floating <i>Halophila baillonii</i> in Placencia Lagoon, Belize"</p>
Community and species-specific responses of coastal birds to COVID-19 "anthropause" in the largest hypersaline lagoon of South America
Open the record for dataset details and reuse information.
Relative phase between tidal and solar cycles influences the heating of a coral atoll lagoon
<p>The residence time of water within reef-lagoon systems is of first-order importance to biogeochemical cycles and reef ecosystem functions. Circulation, mixing, and water renewal within these systems is highly dependent upon the geometry of the reef as well as wave, tide, and wind forcing. We are motivated to understand the physical driving a recent warming event as well as observed hypoxia-related fish kills and seagrass dieoff events in Dongsha Atoll lagoon, a 28 km wide coral atoll in the South China Sea. Though extensive work has been done on hypoxia events in temperate coastal systems, there remains a lack of understanding regarding the dynamics of these events in shallow tropical waters. Hydrographic observations were collected in summer 2019 to examine circulation and ocean-lagoon exchange in Dongsha Atoll lagoon. We construct a heat budget for the Dongsha Atoll lagoon to understand the physical processes governing lagoon circulation and ocean-lagoon exchange. We examine the influence of tides, winds, waves, advective exchange, and surface heating on lagoon heating and flushing time. Results show that surface heat fluxes drive rapid heating of the lagoon by approximately 1.5°C over the 22 day study period. Advective transport over the reef flat from tide- and wave-driven flows is an important component of oceanlagoon exchange that is balanced by a net outflow through the channels on subtidal timescales. Specifically, a near phase-locked interaction between diurnal solar forcing and near-diurnal tidal exchange drives persistent advective cooling over the reef flat. Estimated flushing times for the Dongsha Atoll lagoon range from 2.7 to 3.2 days for spring and neap tide, respectively.</p>
Fig. 4 in Seasonal Variation (Winter Vs. Summer) Crustacean Fauna Of The Oualidia Lagoon, Morocco
Fig. 4. Canonical correspondence analysis plots: A — winter; B — summer.
Fig. 1 in Seasonal Variation (Winter Vs. Summer) Crustacean Fauna Of The Oualidia Lagoon, Morocco
Fig. 1. Location map of the study area and sampling sites in the Oualidia lagoon.
Data for: The hydrodynamics of Lizard Island lagoon, Great Barrier Reef
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Influence of past and current factors on the beta diversity of coastal lagoon fish communities in South America
<p><strong>Aim: </strong>We aimed to assess the relative influence of past (Quaternary paleodrainage characteristics) and current factors on the beta diversity of freshwater fishes in coastal lagoons and explore the main processes involved.</p> <p><strong>Location:</strong> Atlantic coast of South America. Taxon: Fishes (173 species)</p> <p><strong>Methods:</strong> We built a dataset of species occurrence in 129 lagoons across eight freshwater ecoregions of the world (FEOWs) located between latitudes 0° and 36° and calculated beta diversity (βjac) and its turnover (βjtu) and nestedness (βjne) components. We used a partial Mantel test and multiple regressions on distance matrices to evaluate the importance of past and current factors, and of geographical distance in determining beta diversity. Past variables were those representing the historical freshwater habitat during the last glacial maximum (LGM), and contemporary variables were those related to current habitat.</p> <p><strong>Results:</strong> We found high values of βjac within the FEOWs, with βjtu prevailing over βjne. Both past (paleodrainage) and current (drainage area, salinity, and lagoon area) factors affected species dissimilarity (βjac = 46%) and its components (βjtu = 44% and βjne =20%), although explanation was, in part, shared with geographical distance. Individually, the influence of past factors was prevalent in beta diversity and its components.</p> <p><strong>Main Conclusions:</strong> The results suggest that major changes in the availability of freshwater habitats and connectivity since the Pleistocene must have affected the colonization, extinction and recolonization processes of fishes along the eastern coast of South America. We suggest that the high beta diversity values may result from limited dispersal after extinctions in the LGM and that the dissimilar freshwater fish communities currently seen were formed mainly by heterogeneous subsets of the regional species pool that persisted in landscape refuges during past sea level increases and then recolonized coastal lagoons.</p>
Fig. 2 in Metazoan Parasites And Health State Of European Eel, Anguilla Anguilla (Anguilliformes, Anguillidae From Tonga Lake And El Mellah Lagoon In The Northeast Of Algeria
Fig. 2. Distribution of the swimbladder degenerative index (SDI) in eels from the two localities.
Fig. 1 in Metazoan Parasites And Health State Of European Eel, Anguilla Anguilla (Anguilliformes, Anguillidae From Tonga Lake And El Mellah Lagoon In The Northeast Of Algeria
Fig. 1. Northeast of Algeria; stars show localization of sampling sites of eels.
Mosquito Lagoon Watershed Livingshoreline monitoring data
<p><strong>PROJECT NAME: </strong>Implementing and evaluating the effectiveness of native vegetative buffers at controlling nonpoint source pollution and as a tool for public education along the Indian River Lagoon</p> <p> </p> <p><strong>PROJECT LOCATION AND WATERSHED CHARACTERISTICS:</strong> </p> <p>Geographic Location (city and county): New Smyrna Beach, FL and nearby cities</p> <p>Size of Project Impact: North Indian River Lagoon Stakeholder zone (A Project Zone)</p> <p>Size of Area Being Treated: approx. 100,000 sq ft (9300 sq. m)</p> <p>Latitude (decimal degrees): approx. 29 N</p> <p>Longitude (decimal degrees): 80.9 W</p> <p>12 Digit Hydrologic Unit Code: 030802020400</p> <p>WBID<strong>:</strong> 2924B2, 2924B1</p> <p>Impaired Water Body Affected: Indian River Lagoon Basin Northern Indian River Lagoon (North A)</p> <p>TMDL Status and Name: Nutrient TMDLs (TN: 177,220 lbs/yr; TP: 9320 lbs/yr)</p> <p>TMDL Impairment; indicate the parameters in the TMDL: Water quality conditions necessary for seagrass regrowth at water depth limits where seagrass historically grew in the basin (a 10% reduction in the target seagrass depth)</p> <p>Impairments to be Addressed by Project: Dissolved oxygen, Nutrients (TN, TP), Un-Ionized Ammonia, turbidity, seagrass depth limits</p> <p><strong> </strong></p> <p><strong>PROJECT OVERVIEW:</strong> The primary objective of this project is to reduce nonpoint source pollution along the Mosquito Lagoon (ML), a northern sub-lagoon of the Indian River Lagoon (IRL) system, by (1) transforming artificially landscaped turfgrass dominated shorelines and retention ponds into living shorelines of native Florida plants that are known to be better filters of nonpoint source nutrients and (2) engaging the public and enhancing awareness of their role in contribution to BMPs for nonpoint source pollution impacting the system.</p>
Fig. 5 in The black goby Gobius niger Linnaeus, 1758 in the Marchica Lagoon (Alboran Sea, Morocco): spatio-temporal distribution, its environmental drivers, and the site-related footprint
Fig. 5: Spatial and temporal distribution of Gobius niger in the Marchica Lagoon.
Figure 2 in Polychaete diversity in the estuarine habitats of Términos Lagoon, southern Gulf of Mexico
Figure 2. Number of species by family at each habitat in Términos Lagoon.
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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.