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129 results for “benthic species”
Climate-associated variation in the drivers of benthic macroinvertebrate species-area relationships across shallow freshwater lakes
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The wash zone and habitat use among three benthic fish species in stratified lakes
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Abundance and species composition of benthic heterobranch molluscs from the Santa Barbara Channel mainland
These data are counts of heterobranch molluscs (sea slugs and allies) from rocky intertidal sites on the mainland coast of the Santa Barbara Channel. Data collection began in 2002 and 2008 at Naples Point and Tar Pits Reef, respectively, and is ongoing. Data include counts of individuals of 68 total species, presence/absence of their egg masses, and search time (as observer hours) for each sampling trip.
Data from: Trophic position and niche overlap of an Asian weatherfish (Misgurnus bipartitus), western tubenose goby (Proterorhinus semilunaris), and native benthic fish species
<p>The dataset belonging to the paper "Trophic position and niche overlap of an Asian weatherfish (<i>Misgurnus bipartitus</i>), western tubenose goby (<i>Proterorhinus semilunaris</i>), and native benthic fish species" published in Aquatic Invasions (paper in press; doi link will be added later), is provided here. The dataset consists of δ13C and δ15N (‰) stable isotope ratios of taxa of fish, macroinvertebrates, plants, alga, and soil. If applicable, the length of the taxon was included. Below, methodological information is provided on the study site, the sampling process, the sampling preparation, and the stable isotope analysis. For references, see the published paper in Aquatic Invasions.</p><p> </p><p><i>Study site</i></p><p>The study site concerned a section of the lowland brook Tungelroysebeek (51°14.38'N, 005°52.086'E – 51°14.26'N, 005°47.77'E) near the village Tungelroy in the Province of Limburg, the Netherlands. This brook of 35 km length has several tributaries before discharging into the River Meuse. Over most of its course, the brook was meandering and had a well-developed riparian and hydrophyte vegetation. During sampling the mean water temperature was 16.0 °C, conductivity 664 µS/cm, pH 7.3, water velocity 0.2 m/s, depth 70 cm, and Secchi depth 60 cm. The brook width ranged between 5-8 m and its bed substrate predominantly consisted of sand.</p><p> </p><p><i>Sampling</i></p><p>Samples of fish, macroinvertebrates, macrophytes, dead organic material, and bottom soil substrate were collected in October 2019. The samples were collected in the stretch of the brook that is denoted in Fig. 1 of the paper. Fish were caught using handheld electrofishing equipment (Bretschneider EFGI 650). After catching, the fish were euthanized using a neutralized benzocaine solution of 100 mg l-1. Macroinvertebrates were collected using 70x55 cm dip nets with a mesh size of 1 mm. Helophytes, floating-leaved, and submerged aquatic macrophytes were collected by hand. Soil samples were collected by means of a hollow soil sampling tube with a diameter of 5 cm. A Nikon SMZ800 stereo microscope with a 10-63 magnification was used for the identification of small macroinvertebrates.</p><p> </p><p><i>Sample preparation </i></p><p>All samples were transported to the laboratory and stored separately at -18° C until preparation. To obtain muscle samples a piece of 0.5-1 cm of the dorsal tissue of each fish was dissected. Muscle tissue samples were dissected from fish, crayfish, and unionid mussels. Other macroinvertebrates were stored alive for two days at 5 °C to empty their intestinal contents. Subsequently, these invertebrates were rinsed with tap water and then with demineralized water before processing. From unionid mussels, muscle tissue of a similar size was dissected. Of small mollusks, all soft body tissues were used. For small mollusks and other macroinvertebrates, individuals of the same species were pooled to obtain enough material (0.22-0.26 mg) for analyses. For crayfish, muscle tissue of the abdomen was used while the intestine was removed. The stems, leaves, and roots of individual plants were pooled. </p><p>After preparation, all samples were stored at -80 °C until freeze drying. Freeze drying was carried out at -90 °C for 24-48 hours for fish and macroinvertebrate samples. Plant, dead organic material, and soil samples were freeze dried at least 48 hours. After freeze drying, the samples were grounded with aluminum balls, for 2 min at 30 rpm, using a Retsch MM 400. Subsequently, the grounded samples were weighted in tin cups (Elemental Microanalysis 8 x 5 mm) and prepared for isotope analyses. For the fish and invertebrate samples, 0.22-0.26 mg was weighted. For plants and soil, separate samples were weighted for carbon (10 mg) and nitrogen (40 mg) analyzes. </p><p> </p><p><i>Stable isotope analyses</i></p><p>Carbon and nitrogen stable isotopes were measured using a Thermo Scientific FLASH 2000 HT Elemental Analyzer with a Thermo Scientific DELTA V Advantage Next Generation Isotope Ratio mass spectrometer. Reference gasses were calibrated with the IAEA standards (IAEA-N-2 and IAEA-CH-6), with a maximum deviation of 0.15‰. As an internal standard control, caffeine was used and the 13C/12C and 15N/14N of every sample were determined (in ‰). The isotope ratios (R) δ13C and δ15N are relative to Vienna PDB and atmospheric N2 and were calculated by:</p><p> </p><p>δ13C or δ15N = (Rsample/Rstandard − 1) * 1000</p><p> </p><p>Abstract </p><p>Co-occurring and morphologically similar species have adapted to differential niches for minimizing competition. An invasive alien species can occupy an 'empty niche' in introduced ranges. Alternatively, the invader may occupy an overlapping niche and compete with native species to a certain degree. In a Western European lowland brook with high nutrient loads, we studied a benthic community of five fish species, including two alien species: an Asian weatherfish (<i>Misgurnus bipartitus</i>) and the western tubenose goby (<i>Proterorhinus semilunaris</i>). The native species concerned stone loach (<i>Barbatula barbatula</i>), spined loach (<i>Cobitis taenia</i>), and gudgeon (<i>Gobio gobio</i>). Because of the unknown effects of the invaders on native benthic fish species, the trophic position, isotopic niche overlap, and potential food competition among these species were identified using nitrogen and carbon stable isotopes. The trophic levels of the five fish species indicated that they are secondary consumers. Body size of native fish species correlated significantly negative with their δ15N (‰) signature, in contrast with the invaders indicating that the latter are generalists. Significant isotopic niche overlap was observed among all benthic species. The degree of niche overlap of <i>M. bipartitus </i>was the highest (91.8%) with the <i>G. gobio</i>. <i>Proterorhinus semilunaris</i> had the highest degree of niche overlap (91.2%) with the (<i>B. barbatula</i>. It was notable that the observed niche overlap between the native <i>B. barbatula </i>and <i>C. taenia</i> was high (99.2%). Overlap between <i>M. bipartitus</i> and <i>P. semilunaris</i> was low (8.9% overlap), indicating little resource competition between these alien species. Native species showed wider isotopic niches than the invaders. Bayesian mixing models revealed that native and alien species slightly differ in their main diet. The results suggest that the invaders are plastic in their resource use, leading to niche differentiation and promoting co-existence of benthic fish species.</p>
Secondary production increases with species richness but decreases with species evenness of benthic invertebrates
<p>Biodiversity is known to regulate ecosystem functioning under controlled experimental conditions. However, the 'real-world' consequences of biodiversity change remain uncertain, as biodiversity–ecosystem function (BEF) relationships observed in nature may be influenced by other drivers. Attempts to disentangle BEF relationships from the effects of confounding factors have so far focused mainly on primary producers, leaving relatively little known about the impact of changes in consumer diversity despite ecosystems experiencing species extirpations and introductions across trophic levels. Using data from 176 benthic invertebrate assemblages distributed throughout the North Sea, we studied how a fundamental ecological function – secondary production – varies in relation to two components of biodiversity – consumer species richness and evenness – while statistically controlling the effects of abiotic and biotic covariates. Production was enhanced as richness increased or evenness decreased. The relationship with evenness was attributable to its negative covariance with the abundance of small organisms; however, the relationship with richness could not be fully explained by other drivers. Our study reaffirms experimental findings about the functional importance of species richness and suggests that losing or gaining consumer species will affect secondary production over a broad range of biodiversity (20 to 118 species) in natural ecosystems.</p>
Armitage et al., 2024. Multidecadal changes in coastal benthic species (primary and secondary data: SOTEAG)
<p>The primary data forms part of an ongoing monitoring programme by the Shetland Oil Terminal Environmental Advisory Group (SOTEAG). SOTEAG has undertaken biennial benthic surveys in Sullom Voe and the surrounding areas since 1974 to determine the status of infaunal communities and seafloor sediments. For more information on SOTEAG and the types of monitoring they practice please see: <a href="https://soteag.org.uk/">https://soteag.org.uk/</a>. A full description of sampling methods can be found here: https://soteag.org.uk/environmental-monitoring/monitoring-reports/</p> <p>These published data are a subset of the original SOTEAG data. They were used in a 32-year analysis of benthic infaunal invertebrates to investigate changes in species and trait composition, as well as detect long-term temperature-related shifts in benthic species and communities. The manuscript is entitled “Multidecadal changes in coastal benthic species composition and ecosystem functioning occur independently of temperature-driven community shifts” by Armitage et al., 2024. It should be noted that many of these data are a subset of the original and may have been transformed or standardised for statistical analyses. Below is a description of each .csv file, and whether the data are primary or secondary data, and how they are used in the analyses for the published paper. For details on how the data were reduced, please see the publication. In summary, a total of 15 stations were selected with a biennial year range of 1986 – 2018. The depth range covered 4 – 58m, where stations were classified into shallow, intermediate, and deep depth groups. </p> <p><strong>Env.csv</strong></p> <p><em>Primary data</em>: The environmental data that were collected during sampling by SOTEAG. The data are in long format with each column denoting: Station, Year, Water depth (m), Gravel %, Sand %, Mud %, Grain size, Water temperature (ᵒC), and water salinity. </p> <p><strong>Indices.csv</strong></p> <p><em>Secondary data</em>: These data are the various species and functional indices created from an analysis using species and trait data. The data are in long format and have row names consisting of the station and year, as well as column headings species richness (sp.rich), total species abundance (abundance) species diversity: Shannon (shannon), species diversity: Simpson (simpson), species evenness (evenness), functional richness (FRic), functional evenneness (FEve), functional diversity, also knowns as dispersion (FDis), functional redundancy (Red) species vulnerability (Vul), sampled station (Station), year of sampling (Year), classified depth group (Depth_group), and the decade (Decade). </p> <p><strong>Species.csv</strong></p> <p><em>Primary data</em>: This is the SOTEAG species abundance/community list that has been reduced (rare species were removed, a subset of stations were selected, and data were averaged and standardised across replicates). </p> <p><strong>Species_classification_all.csv </strong></p> <p><em>Secondary data</em>: This is extra supporting information for the species list highlighting the taxonomic ranking (coloumns) and species (rows). </p> <p><strong>STI_and_EcoFun_per_sp.csv</strong></p> <p><em>Secondary data</em>: This is data produced from a combination of species abundance and traits. The first two columns are row ID and species names. Columns 3-12 describe five ecosystem functions with the calculations/methodology provided in the publication. These data show the mean and scaled (0-1) scores for each function. The column headings equate to bioturbation (Bio), sediment stability (Sed), nutrient recycling (NutR), low trophic position (lowTP), high trophic position (highTP). The following columns X0 – X100 represent the quantiles of temperature affinities, with 50 being the 50% mark. The last column is the number of records (nrec) related to the thermal affinity search. </p> <p><strong>STImacroSoteag.csv </strong></p> <p><em>Secondary data</em>: Species thermal affinities (methods described in publication) with the first two columns as row ID and species names. The following columns X0 – X100 represent the quantiles of temperature affinities, with 50 being the 50% mark. The last column is the number of records (nrec) related to the thermal affinity search. </p> <p><strong>Traits.csv</strong></p> <p><em>Primary data</em>: Trait data where each species is listed as a row and traits as a coloumn heading. For trait column names please see publication. Note that the ranges of scores given to a species affinity to a trait is 0-3, which may be split depening on the affinity of the species (i.e., fuzzy coding). </p> <p><strong>Traits_EcoF.csv</strong></p> <p><em>Secondary data</em>: This is data produced from a combination of species abundance and traits. The first two columns are row ID and species names. Columns represent the trait used for the calculation of the Ecosystem Function (please see equations 2 – 6 in the publication). The column headings equate to bioturbation (Bio), sediment stability (Sed), nutrient recycling (NutR), low trophic position (lowTP), high trophic position (highTP), while the trait abbreviations can be found in Table 1 of the publication. The scores follow the fuzzy coding approach highlighted above (Traits.csv). </p> <p><strong>TrendsVsSTIHats.csv</strong></p> <p><em>Secondary data</em>: Results from species thermal index analysis and used to plot figure 4 of the main publication. Data is in long format. </p> <p><strong>tsSSTdata.csv</strong></p> <p><em>Primary data:</em> Sea surface temperatures used in the species distribution model to fit species thermal indices. See publication for details (section 2.3). </p> <p><strong>Vulnerability.csv </strong></p> <p><em>Secondary data:</em> A species index that was a result from the main species abundance/community data. Index values are given for each species (rows) by station/year (columns). Community means of the index can be found in “indices.csv”.</p>
Data from: Comparisons of Late Ordovician ecosystem dynamics before and after the Richmondian Invasion reveal consequences of invasive species in benthic marine paleocommunities
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Data from: Habitat heterogeneity overrides local processes to drive the species-area relationship of benthic macroinvertebrates in shallow floodplain lakes
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Data from: Linking water to the bottom: eDNA study of benthic invertebrates and invasive species in the Venice lagoon
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Secondary production increases with species richness but decreases with species evenness of benthic invertebrates
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Wrong-way migrations of benthic species driven by ocean warming and larval transport: Data
<p>All data used to generate figures, tables, and other results in the publication cited below. All data are derived from publicly available data archives as indicated in the publication's Data Availability Statement. Archived data may change over time, and results in the paper are only relevant to data as originally downloaded. These condensed data were used in the analyses and are provided to ensure that analyses are replicable.</p> <p>If using any code or data, please cite the following publication:<br> Heidi L. Fuchs, Robert J. Chant, Elias J. Hunter, Enrique N. Curchitser, Gregory P. Gerbi, and Emily A. Chen. 2020. Wrong-way migrations of benthic species driven by ocean warming and larval transport. Nature Climate Change. DOI: 10.1038/s41558-020-0894-x</p> <p>The paper is available at: <a href="https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.nature.com%2Farticles%2Fs41558-020-0894-x&data=02%7C01%7Chfuchs%40marine.rutgers.edu%7C8f5bf7d8e5744a5353e408d84e6e924e%7Cb92d2b234d35447093ff69aca6632ffe%7C1%7C0%7C637345584096517620&sdata=Jy%2FD%2FyrfSX6Z0EU1rriqL%2FHnz7KLxpmlqjQmhM6ACAg%3D&reserved=0">https://www.nature.com/articles/s41558-020-0894-x</a></p>
FIGURE 8 in Benthic Ostracoda (Myodocopina, Philomedidae) of the East Sea (Sea of Japan), with description of a new species from the Korean Peninsula
FIGURE 8. Euphilomedes pseudosordidus new species (Female: A, IMB 2786; B, IMB 2785; male: C-E, PLKU 0.2401). A, distal part of the second maxilla; B, furca; C and D, lateral view of the right and left valves; E, distal part of the seventh limb.
FIGURE 9 in Benthic Ostracoda (Myodocopina, Philomedidae) of the East Sea (Sea of Japan), with description of a new species from the Korean Peninsula
FIGURE 9. Euphilomedes pseudosordidus new species (Male: A-F, PLKU 0.2401; G and H, IMB 2784). A, ventral view of the shell; B and C, inside view of the rostrum of right and left valves; D, anteroventral part of the inner lamella of right valve; E, Bellonci organ and medial eye; F, lateral eye; G and H, Bellonci organ and first antenna.
FIGURE 5 in Benthic Ostracoda (Myodocopina, Philomedidae) of the East Sea (Sea of Japan), with description of a new species from the Korean Peninsula
FIGURE 5. Euphilomedes pseudosordidus new species (Female: A, B and E, IMB 2786; C and D, IMB 2785). A and B, medial and lateral views of the distal part of the first antenna; C, second antenna; D, mandible; E, exopodite of the mandible.
FIGURE 13 in Benthic Ostracoda (Myodocopina, Philomedidae) of the East Sea (Sea of Japan), with description of a new species from the Korean Peninsula
FIGURE 13. Euphilomedes pseudosordidus new species (Female: A and B, IMB 2786; male: C-F, PLKU 0.2401). A, seventh limb; B, distal part of the seventh limb; C, first endite of the maxillulla; D, copulatory appendages; E, copulatory appendages and right furcal lamella; F, left furcal lamella (claws not shown).
FIGURE 12 in Benthic Ostracoda (Myodocopina, Philomedidae) of the East Sea (Sea of Japan), with description of a new species from the Korean Peninsula
FIGURE 12. Euphilomedes pseudosordidus new species (Male: A-D, PLKU 0.2401). A, exopodite of the mandible; B and C, distal part of the second maxilla; D, sixth limb.
FIGURE 7 in Benthic Ostracoda (Myodocopina, Philomedidae) of the East Sea (Sea of Japan), with description of a new species from the Korean Peninsula
FIGURE 7. Euphilomedes pseudosordidus new species (female: A-I, IMB 2785; male: J, IMB 2784). A-H, bristles of the sixth limb; I, second endite of the sixth limb; J, seventh limb.
FIGURE 2 in Benthic Ostracoda (Myodocopina, Philomedidae) of the East Sea (Sea of Japan), with description of a new species from the Korean Peninsula
FIGURE 2. Euphilomedes pseudosordidus new species (Female: PLKU-0-2402). Stereo pair of the lateral view of left valve (scale bar = 210mm).
FIGURE 11 in Benthic Ostracoda (Myodocopina, Philomedidae) of the East Sea (Sea of Japan), with description of a new species from the Korean Peninsula
FIGURE 11. Euphilomedes pseudosordidus new species (Male: A,C-I, PLKU 0.2401; B, IMB 2784). A, endopodite of the mandible; B, maxillula; C-I, bristles of the sixth limb. The number of different types of bristles can be in the future the morphological attribute distinguishing species of this genus.
FIGURE 6 in Benthic Ostracoda (Myodocopina, Philomedidae) of the East Sea (Sea of Japan), with description of a new species from the Korean Peninsula
FIGURE 6. Euphilomedes pseudosordidus new species (Female: A – D, IMB 2786; E, IMB 2785). A, distal part of the mandible; B, coxale endite and adjacent surface of the basal of mandible; C maxillula; D, distal part of the maxillula; E, sixth limb.
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Allen Brain Atlas
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