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125 results for “freshwater prawn”
F in The freshwater prawns of the genus Macrobrachium Bate, 1868, of Thailand (Crustacea: Decapoda: Palaemonidae)
F. 5. Macrobrachium tratense sp. nov. (X, cl 11.2 mm, paratype, ZRC 2000.2734, Khlong Fuai (road 3271), 12°23∞44.8◊N, 102°39∞34.5◊E, Trat Province, coll. H. H. Tan et al., 15 January 1997): (A) Cephalothorax. Macrobrachium inflatum (W, cl 15.6 mm, paratype, SFU 57-48-04, Kunshan County, Jiangsu province, eastern China, coll. Liang and Yan, April 1957): (B) cephalothorax; (C) carpus and chela of second pereiopod; (D) third pereiopod; (E) propodus and dactylus of third pereiopod; (F) movable spine of uropodal diaeresis. Scales: (B) 5 mm; (A) 3 mm; (C, D, E) 2 mm; (F) 0.5 mm.
F in The freshwater prawns of the genus Macrobrachium Bate, 1868, of Thailand (Crustacea: Decapoda: Palaemonidae)
F. 6. Macrobrachium dolatum, sp. nov. (W, cl 22.5 mm, holotype, ZRC 2000.2644 mandible; (D) maxillula; (E) maxilla; (F) first maxilliped; (G) second maxilliped; (H
F in The freshwater prawns of the genus Macrobrachium Bate, 1868, of Thailand (Crustacea: Decapoda: Palaemonidae)
F. 9. Macrobrachium thai, sp. nov. (W, cl 11.5 mm, paratype, CU 1997–99a, Nong Khai, north-east Thailand, 14 December 1990). (A) Cephalothorax, lateral view; (B) cephalothorax, dorsal view; (C) epistome; (D) first two abdominal sterna with transverse ridge, with median processes; (E) telson; (F) scaphocerite; (G) first pereiopod; (H) second pereiopod; (I) fingers of second pereiopod; (J) third pereiopod; (K) propodus and dactylus of third pereiopod; (L) movable spine of uropodal diaeresis. Scales: (A, B) 5 mm; (H) 3 mm; (D–G, I–K) 2 mm; (C, L) 0.5 mm.
FIGURE 4. A in A new record of the giant freshwater prawn, Macrobrachium spinipes (Schenkel, 1902) (Crustacea: Decapoda: Palaemonidae) from Taiwan, with notes on its taxonomy
FIGURE 4. A, Macrobrachium spinipes, subadult female, Sulawesi (specimen not collected); B, Macrobrachium spinipes, juvenile, about 3 cm total length same individual as the subadult female from Sulawesi (specimen not collected). Photographs by Werner Klotz.
FIGURE 2. A in A new record of the giant freshwater prawn, Macrobrachium spinipes (Schenkel, 1902) (Crustacea: Decapoda: Palaemonidae) from Taiwan, with notes on its taxonomy
FIGURE 2. A, Macrobrachium spinipes, female, cl 53.2 mm (NTOU F20618); B, Macrobrachium rosenbergii, male, cl 37.3 mm (NTOU F20656). Specimens from Taiwan.
FIGURE 1. A in A new record of the giant freshwater prawn, Macrobrachium spinipes (Schenkel, 1902) (Crustacea: Decapoda: Palaemonidae) from Taiwan, with notes on its taxonomy
FIGURE 1. A, Macrobrachium spinipes, female, cl 53.2 mm (NTOU F20618); B, Macrobrachium spinipes, male, cl 30.9 mm (NTOU F20653); C, Macrobrachium rosenbergii, male, cl 37.3 mm (NTOU F20656). All specimens from Taiwan.
FIGURE 3. Male chelae. A in A new record of the giant freshwater prawn, Macrobrachium spinipes (Schenkel, 1902) (Crustacea: Decapoda: Palaemonidae) from Taiwan, with notes on its taxonomy
FIGURE 3. Male chelae. A, Macrobrachium spinipes, male, cl 70.05 mm (NTOU F20661); B, Macrobrachium rosenbergii, male, cl 40.95mm (NTOU F20664). Specimens from Taiwan.
FIGURE 5. Specimens from Cebu, Philippines. A, B in A new record of the giant freshwater prawn, Macrobrachium spinipes (Schenkel, 1902) (Crustacea: Decapoda: Palaemonidae) from Taiwan, with notes on its taxonomy
FIGURE 5. Specimens from Cebu, Philippines. A, B, Macrobrachium spinipes, subadults; C, Macrobrachium rosenbergii, subadult (specimens not collected). Photograph by Homer de Dios.
FIGURE 1 in Macrobrachium sbordonii (Decapoda: Palaemonidae), a new stygobitic species of freshwater prawn from Chiapas Mexico
FIGURE 1. Distribution of the stygobitic species of Macrobrachium in America.
FIGURE 5 in Macrobrachium hungi, a new freshwater palaemonid prawn (Decapoda: Caridea: Palaemonidae) from the Tonle Sap Great Lake of Cambodia
FIGURE 5. Rostrum and second pereiopods of holotype (OUMNH.ZC.2011-10-015).
FIGURE 5 in Macrobrachium chainatense sp. nov. (Decapoda: Palaemonidae): a freshwater prawn from Thailand based on morphology and molecular phylogeny
FIGURE 5. Palm and finger of second pereiopod of Macrobrachium chainatense sp. nov.
FIGURE 4 in Macrobrachium chainatense sp. nov. (Decapoda: Palaemonidae): a freshwater prawn from Thailand based on morphology and molecular phylogeny
FIGURE 4. Carapace of male Macrobrachium chainatense sp. nov.
FIGURE 2 in Macrobrachium chainatense sp. nov. (Decapoda: Palaemonidae): a freshwater prawn from Thailand based on morphology and molecular phylogeny
FIGURE 2. Male (upper and smaller) and female (lower and larger) Macrobrachium chainatense sp. nov.
Data from: Understanding the genomic basis of adaptive response to variable osmotic niches in freshwater prawns: a comparative intraspecific RNA-Seq analysis of Macrobrachium australiense
Understanding the molecular basis of adaptive response to variable environmental conditions is a central goal of evolutionary biology. Here we sought to identify potential outlier SNPs (single nucleotide polymorphisms) in three wild populations of a freshwater prawn (Macrobrachium australiense) that are exposed to differing osmotic niches by using a comparative transcriptomics approach. De novo assembly of approximately 542 million (75 nt) pair end reads collected from 10 individuals revealed 123,396 longer contigs/transcripts of variable length, that showed 97.38% transcriptome assembly completeness. Differential gene expression (DGE) analysis of major osmoregulatory genes revealed that Calreticulin, Na+/H+ exchanger and V-type (H+) ATPase showed the highest expression levels in the Blunder Creek (low ionic) population, while Crustacean cardiovascular peptide (CCP), Na+/K+-ATPase, Na+/K+/2Cl- Co-transporter (NKCC) and Na+/HCO3 exchanger showed the highest expression levels in the Bulimba Creek (higher ionic) population. In total, 16 gene ontology (GO) term categories were functionally enriched among the three studied populations. We identified 4144 raw and 835 high quality filtered SNPs in the three M. australiense populations, of which 84 SNPs were identified as outliers. Outliers were detected in 4 important osmoregulatory genes that include: Calreticulin, Na+/H+ exchanger, Na+/K+-ATPase and V-type-(H+)-ATPase. All outliers in the osmoregulatory genes were located in non-coding regulatory regions (untranslated regions, UTRs) of the gene. We hypothesize that the outlier SNPs identified here in M. australiense populations exposed naturally to different osmotic conditions influence specific gene expression patterns that allow individuals to respond to local environmental conditions.
Data from: Understanding the genomic basis of adaptive response to variable osmotic niches in freshwater prawns: a comparative intraspecific RNA-Seq analysis of Macrobrachium australiense
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Has a river dam affected the life-history traits of a freshwater prawn?
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FIGURE 7. A and B in Macrobrachium tenuipes, a new stygophile freshwater prawn specie (Crustacea: Caridea: Palaemonidae) from a karst cave of Guangxi, southwestern China
FIGURE 7. A and B, Macrobrachium tenuipes sp. nov., cephalothorax and cephalic appendages, lateral view and dorsal view; C and D, M. superbum, cephalothorax and cephalic appendages, lateral view and dorsal view; E and F, second pereiopod and fingers of second pereiopod of M. superbum.
FIGURE 3 in Macrobrachium tenuipes, a new stygophile freshwater prawn specie (Crustacea: Caridea: Palaemonidae) from a karst cave of Guangxi, southwestern China
FIGURE 3. Bayesian inference phylogram of palaemonids based on concatenated COI and 18S rRNA sequences. Numbers at nodes represent posterior probability.
FIGURE 2. A in Macrobrachium tenuipes, a new stygophile freshwater prawn specie (Crustacea: Caridea: Palaemonidae) from a karst cave of Guangxi, southwestern China
FIGURE 2. A map of the cave showing the collection sites. A, distant view of the cave entrance, as well as the surrounding vegetation and topographic features; B, an unidentified atyid shrimp, lateral view; C, Sinocylocheilus macrolepis Wang & Chen 1989, Macrobrachium tenuipes sp. nov. and Chinapotamon glabrum Dai et al. 1980; D, top view of the cave; E, left view of the cave; F, close view of entrance to the cave; G, path conditions from the first cave to the second cave hall; H, main sampling site.
FIGURE 6 in Macrobrachium tenuipes, a new stygophile freshwater prawn specie (Crustacea: Caridea: Palaemonidae) from a karst cave of Guangxi, southwestern China
FIGURE 6. Macrobrachium tenuipes sp. nov. Paratype male (FU, 2018-11-25-02). A, antennule; B, antenna; C, mandible; D, maxillule; E, maxilla; F, first maxilliped; G, second maxilliped; H, third maxilliped; I, telson.
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Allen Brain Atlas
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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.