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738 results for “estuaries”
Fig. 3 in Feeding ecology of immature Lithodoras dorsalis (Valenciennes, 1840) (Siluriformes: Doradidae) in a tidal environment, estuary of the rio Amazonas
Fig. 3. Non-metric Multidimensional Scaling based on the Alimentary Index (AIi%) of all food items consumed by the rock-bacu Lithodoras dorsalis among pluviometric periods, rio Amazonas mouth region, Brazil.
Fig. 1 in Feeding ecology of immature Lithodoras dorsalis (Valenciennes, 1840) (Siluriformes: Doradidae) in a tidal environment, estuary of the rio Amazonas
Fig. 1. Location of study area near the mouth of the rio Amazonas in Brazil. A, Location of Brazil on South America; B, rio Amazonas mouth with the sampling site; C, Study area (specimens were collected within the shaded area).
"Marsh" database: characterization of the state of the necton in two depolderized zones of the Gironde estuary
<p>In the Gironde estuary, two accidentally de-polderized marshes have been the subject of biological monitoring (necton) since 2008: the Marais de Mortagne-sur-Gironde and the northern part of Île Nouvelle. The Mortagne-sur-Gironde marsh is located in the mesohalin sector of the Gironde estuary. With an area of 191 hectares, the marsh was dammed in 1966 and cultivated for more than 30 years. Its protective dike gave way during the December 1999 storm. Ile Nouvelle is located in the Oligaline Sector of the Gironde Estuary. The northern part of the island - an area of 141 hectares - has been depolderized during the passage of storm Xynthia in 2010, following the opening of a breach.<br> Biological monitoring (necton) was carried out in the Gironde estuary over the period 2008-2016 to test the hypothesis that the depoldisation of the estuarine shorelines makes it possible to recreate nursery and feeding areas for fish and fish. estuarine and coastal macrocrustaceans. This work was carried out by the National Institute for Research in Science and Technology for the Environment and Agriculture (Irstea), in partnership with the Conservatoire du Littoral, the Gironde Departmental Council and the Regional Council for Natural Areas ( CREN) of Poitou-Charentes.<br> The "Marsh" database includes all the surveys carried out throughout the study, between 2008 and 2016, and in particular samplings carried out within the necton.</p>
Gelatinous zooplankton abundances in the Rhode River Estuary, MD, USA, 2004-2005 and 2013-2018
<p>Field sampling of ctenophore (<em>Mnemiopsis </em>and <em>Beroe</em>) and scyphomedusae (<em>Chrysaora</em>) abundances in the Rhode River and adjacent Chesapeake Bay (MD, USA). Samples were taken using 0.5 m and 1.0 m diameter nets in 2004-2005 and 2013-2018.</p>
Large projected decline in dissolved oxygen in a eutrophic estuary due to climate change
<p>This data includes the model codes and input files for the paper "Large projected decline in dissolved oxygen in a eutrophic estuary due to climate change" submitted to Journal of Geophysical Research-Oceans.</p> <p>It includes the input files and source code for ROMS and RCA model to produce simulations of Chesapeake Bay hypoxia during 1989-1998 and 2047-2098.</p> <p>ROMS (Regional Ocean Modeling System) model used in this study is version 3.4.</p> <p>RCA (Row-Column AESOP) water quality model used in this study is coupled with ROMS output, by UMCES group.</p> <p>For more details, please see the future publication.</p>
Fig. 2 in Planktonic Ciliates of the Neva Estuary (Baltic Sea): Community Structure and Spatial Distribution
Fig. 2. Two groups of samples, distinguished by ordination (MDS) on the basis of similarity of the ciliate community structure (p <0.05). Upper and lower parts of the inner Neva Estuary (white and grey symbols) slightly differed by community structure (Global R = 0.163).
Fig. 1 in Planktonic Ciliates of the Neva Estuary (Baltic Sea): Community Structure and Spatial Distribution
Fig. 1. Scheme of the inner Neva Estuary and location of sampling stations; modified from Telesh et al. (2008). Broken line indicates the storm-surge barrier.
Figure 1 in On the record of two species of the family Pholadidae (Martesia fragilis and Martesia striata) off Dhamara Estuary (Odisha), Bay of Bengal
Figure 1. Map showing the occurrence location of M. striata (Point 1) and M. fragilis (Point 2) in the off Dhamara estuarine zone and offshore area respectively, Bay of Bengal.
Figure 5 in On the record of two species of the family Pholadidae (Martesia fragilis and Martesia striata) off Dhamara Estuary (Odisha), Bay of Bengal
Figure 5. Image showing morphological differences between Mesoplax and Metaplax of Martesia striata from estuary and B. Martesia fragilis from offshore of Dhamara respectively.
Figure 2 in On the record of two species of the family Pholadidae (Martesia fragilis and Martesia striata) off Dhamara Estuary (Odisha), Bay of Bengal
Figure 2. Image showingMartesia fragilis collected from the offshore region off Dhamara estuary (30 m depth).
Figure 4. A. Image showing dorsal side and B in On the record of two species of the family Pholadidae (Martesia fragilis and Martesia striata) off Dhamara Estuary (Odisha), Bay of Bengal
Figure 4. A. Image showing dorsal side and B. Ventral side of Martesia striata collected from off Dhamara estuary.
Figure 6 in Spatiotemporal distribution and population structure of Clibanarius symmetricus (Randall, 1840) (Crustacea, Diogenidae) in an Amazon estuary
Figure 6. Frequency distribution of cephalothoracic shield length (in mm) classes of the Clibanarius symmetricus specimens collected in the Marapanim estuary, Pará, Brazil. The vertical line represents the onset of sexual maturity (3.6 mm).
Figure 2 in Spatiotemporal distribution and population structure of Clibanarius symmetricus (Randall, 1840) (Crustacea, Diogenidae) in an Amazon estuary
Figure 2. Median Clibanarius symmetricus density by season (a), sector (b), site (c), and midlittoral zone (d) in the Marapanim River estuary (PA), between August 2006 and July 2007, based on the results of the PERMANOVA.
Figure 1 in Spatiotemporal distribution and population structure of Clibanarius symmetricus (Randall, 1840) (Crustacea, Diogenidae) in an Amazon estuary
Figure 1. Geographical location of the study area, showing the 4 sampling sites in the Marapanim estuary: A1 and A2 (western margin), B1 and B2 (eastern margin).
Figure 4 in Spatiotemporal distribution and population structure of Clibanarius symmetricus (Randall, 1840) (Crustacea, Diogenidae) in an Amazon estuary
Figure 4. Frequency of occurrence of Clibanarius symmetricus specimens of nonovigerous females (F), ovigerous females (OF), males (M), and intersex individuals (INT) collected each month between August 2006 and July 2007, in the Marapanim estuary, Pará, Brazil.
Figure 3 in Spatiotemporal distribution and population structure of Clibanarius symmetricus (Randall, 1840) (Crustacea, Diogenidae) in an Amazon estuary
Figure 3. Mean Clibanarius symmetricus density, and the temperature and salinity recorded in the Marapanim estuary, Pará, Brazil, between August 2006 and July 2007.
Fig. 8 in Does dredging activity exert an influence on benthic macrofauna in tropical estuaries? Case study on the northern coast of Brazil
Fig. 8. Diagram of Principal Component Analysis during collection periods [Temp(W), water temperature; Sal(W), water salinity; OD(W), water dissolved oxygen; pH(W), pH of water; Fe(W), water iron; Mn(W), water manganese; Cu(S), copper from sediment; Cr(S), chromium from sediment; Ni(S), nickel from sediment; Zn(S), zinc from sediment].
Fig. 7 in Does dredging activity exert an influence on benthic macrofauna in tropical estuaries? Case study on the northern coast of Brazil
Fig. 7. Dendrogram of Bray-Curtis similarity between the points sampled in the Port Complex of SÃo LuÍs, MaranhÃo, Brazil.
Fig. 3 in Does dredging activity exert an influence on benthic macrofauna in tropical estuaries? Case study on the northern coast of Brazil
Fig. 3. Temporal and spatial variation of different granulometric size fractions contribution (%) to the sediment total weight at SÃo LuÍs Harbor, MaranhÃo, Brazil. The number below the x-axis indicate the sampling stations.
Fig. 6 in Does dredging activity exert an influence on benthic macrofauna in tropical estuaries? Case study on the northern coast of Brazil
Fig. 6. Number of species, density and diversity of Shannon of the benthic macrofauna found in the Port Complex of SÃo LuÍs, MaranhÃo, Brazil: (A) Number of species, (B) Density, (C) Shannon diversity and (D) Lumbrineris sp.
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