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48 results for “Chrysaora”
FIGURE 13 in Redescription of Chrysaora lactea Eschscholtz, 1829 (Cnidaria, Scyphozoa) from the Brazilian coast, with designation of a neotype
FIGURE 13. Oral view of a young medusa of Chrysaora lactea reared in laboratory, showing developed tertiary tentacle (arrow) between primary (central) and secondary (lateral, closer to the rhopalium). Scale = 1.5 cm.
FIGURE 1 in Redescription of Chrysaora lactea Eschscholtz, 1829 (Cnidaria, Scyphozoa) from the Brazilian coast, with designation of a neotype
FIGURE 1. Side view of an adult medusa (bell diameter 12 cm) of Chrysaora lactea. Note the shape of the umbrella, the colour pattern, and only 3 tentacles per octant. Specimen photographed in an aquarium.
FIGURE 9 in Redescription of Chrysaora lactea Eschscholtz, 1829 (Cnidaria, Scyphozoa) from the Brazilian coast, with designation of a neotype
FIGURE 9. Oral view of an ephyra of Chrysaora lactea, 1.8 mm in diameter, showing development of the primary tentacles on the subumbrellar portion near the margin.
FIGURE 4 in Redescription of Chrysaora lactea Eschscholtz, 1829 (Cnidaria, Scyphozoa) from the Brazilian coast, with designation of a neotype
FIGURE 4. Diagrammatic subumbrellar view of a typical octant of an adult medusa of Chrysaora lactea. Note the shape of the tentacular pouches and arrangement of tentacles on the margin. Note also the pearshaped inner margins of the radial septa (white). The dark portion represents the gastrovascular cavity.
FIGURE 12 in Redescription of Chrysaora lactea Eschscholtz, 1829 (Cnidaria, Scyphozoa) from the Brazilian coast, with designation of a neotype
FIGURE 12. Side view of a young medusa (bell diameter 4 cm) of Chrysaora lactea. Note the length of the mouth arms (with some Artemia nauplii inside). Specimen reared in laboratory and photographed in aquarium.
FIGURE 3 in Redescription of Chrysaora lactea Eschscholtz, 1829 (Cnidaria, Scyphozoa) from the Brazilian coast, with designation of a neotype
FIGURE 3. Side view of a medusa (bell diameter 9 cm) of Chrysaora lactea (with 3 tentacles per octant). Note the papillae on the exumbrella and damaged mouth arms, the colour pattern, and the exumbrellar sensory pit on the left side. Specimen photographed by Dr Alvaro E. Migotto (CEBIMarUSP) in aquarium.
Chrysaora chesapeakei decontaminated FSCR
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Chrysaora achlyos decontaminated FSCR
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Chrysaora fuscescens decontaminated FSCR
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Chrysaora chesapeakei decontaminated gx
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Chrysaora achlyos decontaminated gx
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Chrysaora fuscescens decontaminated gx
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Chrysaora chesapeakei zanfona 1
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Chrysaora achlyos zanfona 1
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FIG. 3 in A preliminary phylogeny of Pelagiidae (Cnidaria, Scyphozoa), with new observations of Chrysaora colorata comb. nov.
FIG. 3. Chrysaora colorata, mature medusa, with oral arms broken oOE. Note massiveness of bell and characteristic pigmentation pattern on exumbrellar surface.
FIG. 5 in A preliminary phylogeny of Pelagiidae (Cnidaria, Scyphozoa), with new observations of Chrysaora colorata comb. nov.
FIG. 5. Scyphistoma and strobila of Chrysaora colorata: (a) scyphistoma; (b) early strobila; (c) late strobila. Note spiralling of tentacles in (a) and (b). Composite of three stages drawn from separate photographs.
FIG. 1 in A preliminary phylogeny of Pelagiidae (Cnidaria, Scyphozoa), with new observations of Chrysaora colorata comb. nov.
FIG. 1. Quadralinga in two pelagiid species: (a) Chrysaora achylos, rounded linga from a live specimen. (b) Pelagia colorata, view through the top of the bell of a preserved specimen. (c) P. colorata, a clover-shaped lingum in a live specimen.
Data from: Diet assessment of the Atlantic Sea Nettle Chrysaora quinquecirrha in Barnegat Bay, New Jersey, using next-generation sequencing
Next generation sequencing (NGS) methodologies have proven useful in deciphering the food items of generalist predators, but have yet to be applied to gelatinous animal gut and tentacle content. NGS can potentially supplement traditional methods of visual identification. Chrysaora quinquecirrha (Atlantic sea nettle) has progressively become more abundant in Mid-Atlantic United States' estuaries including Barnegat Bay (New Jersey), potentially having detrimental effects on both marine organisms and human enterprises. Full characterization of this predator's diet is essential for a comprehensive understanding of its impact on the food web and its management. Here we tested the efficacy of NGS for prey item determination in the Atlantic sea nettle. We implemented a NGS "shotgun" approach to randomly sequence DNA fragments isolated from gut lavages and gastric pouch/tentacle picks of 8 and 84 sea nettles, respectively. These results were verified by visual identification and co-occurring plankton tows. Over 550,000 contigs were assembled from ~110 million paired-end reads. Of these, 100 contigs were confidently assigned to 23 different taxa, including soft bodied organisms previously undocumented as prey species, including copepods, fish, ctenophores, anemones, amphipods, barnacles, shrimp, polychaete worms, flukes, flatworms, echinoderms, gastropods, bivalves, and hemichordates. Our results not only indicate that a "shotgun" NGS approach can supplement visual identification methods, but targeted enrichment of a specific amplicon/gene is not a prerequisite for identifying Atlantic sea nettle prey items.
FIGURE 7 in Redescription of Chrysaora lactea Eschscholtz, 1829 (Cnidaria, Scyphozoa) from the Brazilian coast, with designation of a neotype
FIGURE 7. Side view of a polyp of Chrysaora lactea. Height approximately 2 mm.
FIGURE 6 in Redescription of Chrysaora lactea Eschscholtz, 1829 (Cnidaria, Scyphozoa) from the Brazilian coast, with designation of a neotype
FIGURE 6. Exumbrellar view of some colour patterns observed in Chrysaora lactea. Scale = 10 cm.
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