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80 results for “mangrove crabs”
Fig. 3 in Salinity Variation in a Mangrove Ecosystem: A Physiological Investigation to Assess Potential Consequences of Salinity Disturbances on Mangrove Crabs
Fig. 3. Hemolymph osmolality (in mOsm·kg-1) at different salinities (A) and osmoregulatory capacity after salinity challenge (B, C) shown by Neosarmatium meinerti (B) and Tubuca urvillei (C). Grey bar: salinity range of water collected at low tide along the rivulet banks. Black bar: salinity range of water collected at low tide in burrows of N. meinerti.
Fig. 5 in Salinity Variation in a Mangrove Ecosystem: A Physiological Investigation to Assess Potential Consequences of Salinity Disturbances on Mangrove Crabs
Fig. 5. Histological sections (A to D) and epithelial thickness of gill lamellae (E, F) of Neosarmatium meinerti (A, C, E) and Tubuca urvillei (B, D, F) after dSW acclimation. Subpanels A and B correspond to anterior (mainly respiratory) gills (here pairs 1 and 3 for N. meinerti and T. urvillei, respectively). Subpanels C and D correspond to posterior (osmoregulatory) gills (here, pairs 8 and 6 for N. meinerti and T. urvillei, respectively). B: bacterial layer; C: cuticle; E: epithelium; H: hemocyte; HL: hemolymphatic lacuna; N: nucleus; S: septum. Scale bar = 20 µm. * p <0.001 (t-test).
Fig. 4 in Salinity Variation in a Mangrove Ecosystem: A Physiological Investigation to Assess Potential Consequences of Salinity Disturbances on Mangrove Crabs
Fig. 4. Whole animal rates of oxygen consumption (A, B) and ROS/RNS production in hemolymph (C, D) from Neosarmatium meinerti (A, C) and Tubuca urvillei (B, D). Different letters represent significantly different groups according to a one-way ANOVA test followed by a SNK multiple comparison test (p <0.05). iSW: isosmotic SW (750 mOsm·kg-1 for N. meinerti and 820 mOsm·kg-1 for T. urvillei). FWB: fresh body weight.
Fig. 1 in Salinity Variation in a Mangrove Ecosystem: A Physiological Investigation to Assess Potential Consequences of Salinity Disturbances on Mangrove Crabs
Fig. 1. Characteristics of the study site. (A) Location of the Comoros archipelago and Malamani mangrove (Mayotte Island). (B) Detailed view of the Malamani mangrove and Neosarmatium meinerti and Tubuca urvillei collection zones. Continuous line indicates the upper limit of the Ceriops tagal belt while the discontinuous line represents the approximate limit between the C. tagal and Rhizophora mucronata belts. The red dot corresponds to the position where pictures E and F were taken. Areas marked in red and blue represent the collection sites for N. meinerti and T. urvillei, respectively. (C) Schematic representation of the mangrove structure, representing the habitats of the two crab species. (D) General view of the mangrove (area marked in red in subpanel B) at high tide. E-F: General view of the rivulet at low tide during a dry day (E) and after rainfall (F).
Figure 1 in Estimating population features of the anomuran crab Petrolisthes armatus (Porcellanidae) in a remaining and impacted mangrove area of the western Atlantic
Figure 1. Petrolisthes armatus. Percentage occurrence of groups (males, non-ovigerous, ovigerous females and non-determined sex) in the Araçá region during the study period. Number above each bar corresponds to the total number of individuals collected.
Figure 2 in Microdistribution of juveniles and adults of the mud crab Panopeus americanus (Brachyura, Panopeidae) in a remnant mangrove area in the southwest Atlantic
Figure 2. Size-class frequency distribution of individuals of the narrowback mud crab Panopeus americanus in the three intertidal zones sampled (zone A: adjacent to the dry zone and farthest from the waterline; zone B: middle intertidal; zone C: lower intertidal, nearest the waterline).
Figure 3 in Microdistribution of juveniles and adults of the mud crab Panopeus americanus (Brachyura, Panopeidae) in a remnant mangrove area in the southwest Atlantic
Figure 3. Abundance of individuals of the narrowback mud crab Panopeus americanus among the sampling zones (zone A: adjacent to the dry zone and farthest from the waterline; zone B: middle intertidal; zone C: lower intertidal, nearest the waterline). Values followed by at least one same letter, in the same group, do not differ statistically (P.0.05).
Figure 1 in Microdistribution of juveniles and adults of the mud crab Panopeus americanus (Brachyura, Panopeidae) in a remnant mangrove area in the southwest Atlantic
Figure 1. Mean size variation (carapace width) of individuals of the narrowback mud crab Panopeus americanus collected in the Araçá region (zone A: adjacent to the dry zone and farthest from the waterline; zone B: middle intertidal; zone C: lower intertidal, nearest the waterline). Values followed by at least one same letter, in the same group, differ statistically (P,0.05).
Feeding behaviour is the main driver for microparticle intake in mangrove crabs
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Figure 5 from: Cannicci S, Ng PLK (2017) A new species of micro-mangrove crab of the genus Haberma Ng & Schubart, 2002 (Crustacea, Brachyura, Sesarmidae) from Hong Kong. ZooKeys 662: 67-78. https://doi.org/10.3897/zookeys.662.11908
Figure 5 - Haberma tingkok sp. n., paratype ♀ (8.6 × 8.3 mm) (ZRC 2016.621). A right P2 propodus and dactylus B right P3 propodus and dactylus C right P4 dactylus and propodus showing dactylo-propodal lock (setae not drawn) D thoracic sternites 5–7, showing vulvae on sternite 6. Abbreviations: st5–7 = thoracic sternites 5–7, respectively; vu: vulva. Scale bars: A, B, D = 1.0 mm; C = 0.5 mm.
Figure 4 from: Cannicci S, Ng PLK (2017) A new species of micro-mangrove crab of the genus Haberma Ng & Schubart, 2002 (Crustacea, Brachyura, Sesarmidae) from Hong Kong. ZooKeys 662: 67-78. https://doi.org/10.3897/zookeys.662.11908
Figure 4 - Haberma tingkok sp. n., holotype ♂ (8.5 × 8.2 mm) (ZRC 2016.620). A left third maxilliped B–E right P2–P5, respectively F pleon G thoracic sternum showing sternopleonal cavity H left G1 (dorsal view) I distal part of left G1 (dorsal view) J, K mesial view of distal part of left G1 L distal part of left G1 (ventral view) M left G2. Setae on third maxilliped, pleon and G1 denuded. Abbreviations: st3–8 = thoracic sternites 3–8, respectively; stpl: sternite 4 pleonal lock. Scale bars: A = 0.5 mm; H–M = 0.25 mm; B–E, F, G = 1.0 mm.
Figure 3 from: Cannicci S, Ng PLK (2017) A new species of micro-mangrove crab of the genus Haberma Ng & Schubart, 2002 (Crustacea, Brachyura, Sesarmidae) from Hong Kong. ZooKeys 662: 67-78. https://doi.org/10.3897/zookeys.662.11908
Figure 3 - Haberma tingkok sp. n. A–D holotype ♂ (8.5 × 8.2 mm) (ZRC 2016.620) E, F paratype ♀ (8.6 × 8.3 mm) (ZRC 2016.621). A dorsal view of carapace B male anterior thoracic sternum and pleon C frontal view of cephalothorax and chelipeds D outer view of left chela E female pleon F female sternopleonal cavity showing vulvae.
Figure 2 from: Cannicci S, Ng PLK (2017) A new species of micro-mangrove crab of the genus Haberma Ng & Schubart, 2002 (Crustacea, Brachyura, Sesarmidae) from Hong Kong. ZooKeys 662: 67-78. https://doi.org/10.3897/zookeys.662.11908
Figure 2 - Haberma tingkok sp. n., overall dorsal view. A holotype ♂ (8.5 × 8.2 mm) (ZRC 2016.620) B paratype ♀ (8.6 × 8.3 mm) (ZRC 2016.621).
Figure 1 from: Cannicci S, Ng PLK (2017) A new species of micro-mangrove crab of the genus Haberma Ng & Schubart, 2002 (Crustacea, Brachyura, Sesarmidae) from Hong Kong. ZooKeys 662: 67-78. https://doi.org/10.3897/zookeys.662.11908
Figure 1 - Haberma tingkok sp. n., colour in life, holotype ♂ (8.5 × 8.2 mm) (ZRC 2016.620). A dorsal view B ventral view.
Figure 6 from: Cannicci S, Ng PLK (2017) A new species of micro-mangrove crab of the genus Haberma Ng & Schubart, 2002 (Crustacea, Brachyura, Sesarmidae) from Hong Kong. ZooKeys 662: 67-78. https://doi.org/10.3897/zookeys.662.11908
Figure 6 - A, C Haberma nanum Ng & Schubart, 2002, holotype ♂ (7.1 × 6.6 mm) (ZRC 2002.217), Singapore B, D Haberma kamora Rahayu & Ng, 2005, paratype ♂ (7.5 × 6.8 mm) (ZRC 2002.591), Indonesian Papua. A, B overall dorsal view C, D anterior thoracic sternum and pleon.
Figure 1. The sampling sites for capturing C in Influence of environmental variability on the body condition of the mangrove horseshoe crab Carcinoscorpius rotundicauda from Banyuasin Estuarine, South Sumatra, Indonesia
Figure 1. The sampling sites for capturing C. rotundicauda in Banyuasin Estuary Waters. The sampling was conducted together with local fishermen using a trammel net.
Fig. 3 in On The Taxonomy And Ecology Of The Mangrove Crab Perisesarma Maipoense (Soh, 1978) (Crustacea: Decapoda: Brachyura: Sesarmidae) From Vietnam
Fig. 3. Perisesarma maiponense, male (31.7 × 25.9 mm) (ZRC), major chela: A, outer view; B, dorsal view of palm and dactylar finger; C, dorsal view of dactylar finger.
Figure 6 in Comparative genetic differentiation study of three coexisting mangrove crabs in western Atlantic
Figure 6. Goniopsis cruentata. Median-Joining haplotype network for mtDNA COI (a) and 16S rDNA (b), showing the distribution of the haplotypes (H); the circle size is proportional to the haplotype frequency; black circles indicate the median vector; different colours represent different populations; dashed circles indicate suggested isolated geographic regions. (c) Bayesian analysis for genetic differentiation for mtDNA COI among populations.
Figure 3 in Comparative genetic differentiation study of three coexisting mangrove crabs in western Atlantic
Figure 3. Map showing the sampling sites for Goniopsis cruentata along the western Atlantic, with collection localities (circles) inside each designated population (dashed areas – names indicated). Different colours represent different populations. States and/or countries of each locality are indicated. For each population, the number of sequences obtained for both mtDNA COI and 16S rDNA genes is indicated. Details of the localities sampled are reported in Table 1. Abbreviations of States: Mexico: VZ: Veracruz; TS: Tamaulipas; YN: Yucatán; Brazil: AP: Amapá; PA: Pará; CE: Ceará; RN: Rio Grande do Norte; PE: Pernambuco; AL: Alagoas; BA: Bahia; ES: Espírito Santo; RJ: Rio de Janeiro; SP: São Paulo; SC: Santa Catarina.
Image Dataset and Trained Detection Models (based on YOLOv5 and EfficientNet) of Mangrove Crabs of China
<p>A manually annotated image dataset of crabs collected from 16 mangrove forests in China, and a set of trained detection models based on YOLOv5 and EfficientNet. We provide a simple UI that is designed by us, please cite it if helpful.</p>
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