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28 results for “freshwater zooplankton”
FIGURE 3 in Three new cryptic species of the freshwater zooplankton genus Holopedium (Crustacea: Branchiopoda: Ctenopoda), revealed by genetic methods
FIGURE 3. NJ phenogram of Holopedium based upon 17 COI haplotypes, rooted using Sida crystallina. Boostrap support values (based upon 10,000 replicates) are shown for major clusters and deeper nodes, and the scale bar shows K2P genetic distance. Terminal branch labels indicate the clade number, followed by the haplotype number. Haplotypes of reference populations collected from relatively near the type localities of H. gibberum and H. amazonicum are indicated with one and two asterisks, respectively. The two clusters containing these haplotypes are considered to represent these species sensu strictu, while the remaining clusters are described here as new species.
FIGURE 2 in Three new cryptic species of the freshwater zooplankton genus Holopedium (Crustacea: Branchiopoda: Ctenopoda), revealed by genetic methods
FIGURE 2. UPGMA phenogram showing genetic distances, based upon allozyme data, among 121 Holopedium populations. Only those collections known to contain a single species, due to being either invariant or in H-W equilibrium, are included here. Nei's (1972) genetic distance is indicated on the scale bar. The geographic distributions of the two major groups are consistent with those of the two initially described species of Holopedium, and these groups are therefore named after these species, H. gibberum and H. amazonicum. New species names are assigned to two clusters on the basis of allozyme, mtDNA, distributional, and morphological information (see text for further information and justification). Asterisks designate those populations for which mtDNA results are available; allozyme and mtDNA clusters are concordant. Double asterisks and haplotype numbers are given for those populations having sequence data presented in Fig. 4.
FIGURE 1 in Three new cryptic species of the freshwater zooplankton genus Holopedium (Crustacea: Branchiopoda: Ctenopoda), revealed by genetic methods
FIGURE 1. Maps of Holopedium populations sampled for genetic analyses. Exact geographic coordinates and habitat names are provided in Appendix A. Populations sampled from outside North America are shown on the inset global map. Type localities for the two initially described species of Holopedium are indicated with stars on the inset map and were not included in this study, although (relatively) nearby collections were available. North American freshwater biogeographic provinces (after Burr & Mayden 1992) are shown, and the names of those from which samples were collected are listed in the legend.
FIGURE 7 in Three new cryptic species of the freshwater zooplankton genus Holopedium (Crustacea: Branchiopoda: Ctenopoda), revealed by genetic methods
FIGURE 7. Representative photomicrographs of Holopedium glacialis. (a) Lateral view of female in jelly coat stained with dilute fuschian red. Wren Lake, Ontario, June 13, 1994. (b,c) Lateral views of female head. (d) Lateral view of female postabdomen. (e) Lateral view of ventral carapace spinules. (f) Lateral view of male with jelly coat removed. (g) Lateral view of male head and antennae. (h) Lateral view of male antennae. (i) Lateral view of hook on male antennae. (j) Lateral view of hooks on first pair of male thoracic limbs. (k) Lateral view of male postabdomen. (l) Lateral view of male postabdominal claw. (m) Lateral view of ventral carapace spines of a male. (b–e) from Como Lake, Ontario, June 28, 1992. (f–m) from Blue Chalk Lake, Ontario, October 17, 1996.
Breaking Free from Thermodynamic Constraints: Thermal Acclimation and Metabolic Compensation in a freshwater zooplankton species
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Data from: Behavioral diversity is maintained by a conditional strategy in a freshwater zooplankton
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Data from: Adaptive phenotypic plasticity and local adaptation for temperature tolerance in freshwater zooplankton
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Data for: Natural infochemical DMSP stimulates the transfer of microplastics from freshwater zooplankton to fish: An olfactory trap
<p>Natural infochemicals may largely affect the trophic transfer of microplastics (MPs) in ecosystems but such inforchemical effect and mechanisms are poorly understood. Here, a daphnids-zebrafish freshwater microcosm was designed to elucidate whether and how an algae-derived inforchemical, dimethylsulfoniopropionate (DMSP), affects the ingestion and transfer of MPs. Daphnids fast accumulated DMSP and MPs from water, DMSP in daphnids was mainly enriched from the DMSP in water but not from MPs. DMSP did not change the MP ingestion by daphnids. A low concentration of DMSP (<5 nM) increased ingestion of daphnids by zebrafish, while a high concentration of DMSP (>50 nM) did not increase ingestion rates. Interestingly, the MP ingestion by zebrafish in the 0.5 and 5 nM DMSP treatments were 2.06 and 1.69 times that of the control, respectively. This suggest the DMSP at environmentally relevant concentrations may promote the trophic transfer of MPs in freshwater ecosystem via olfactory traps.</p>
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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.
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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.