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38 results for “Pterois”
Phylogeography of lionfishes (Pterois) indicate taxonomic over splitting and hybrid origin of the invasive Pterois volitans
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No evidence for conspecific recruitment for cooperative hunting in lionfish Pterois miles
Lionfish are common piscivores in the Indo-Pacific and invasive in the Caribbean. A fin flaring pattern, involving a rapid undulation of the caudal fin and sequential turning of both pectoral fins, was described in zebra lionfish as a signal to initiate cooperative hunting, and it was hypothesized that such hunting tactics may also exist in other lionfish species and contribute to their successful invasion in the Caribbean. Here, we investigated one of those invasive species, <i>Pterois miles</i>, in its natural range in the Red Sea. We did not observe evidence for cooperative hunting in the field. We complemented field observations with a laboratory experiment aimed at inducing subjects to recruit partners for cooperative hunts, exposing subjects to inaccessible prey in a transparent housing as well as to a potential partner. We regularly observed the fin flaring pattern, but importantly it was not directed at the partner. Thus, rather than being a signal, the fin flaring movement pattern seems to be a swimming mode in a confined environment. Furthermore, the two lionfish did not aggregate at the prey housing, reinforcing the field results that this species in the Red sea does not depend on cooperation to hunt fish.
Data from: Camouflage in motion: Testing for background choice in a stalking predator (lionfish, <em>Pterois miles</em>)
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Data from: The genomics of invasion: characterization of red lionfish (Pterois volitans) populations from the native and introduced ranges
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No evidence for conspecific recruitment for cooperative hunting in lionfish Pterois miles
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FIGURE 2. Pterois volitans larvae. A. 2.5 in The lionfishes: Comparative development of Pterois volitans, Dendrochirus barberi, and D. hemprichi (Scorpaeniformes: Scorpaenidae: Pteroinae) and discrimination of their early life stages from non-pteroine scorpaenid genera in the Western North Atlantic
FIGURE 2. Pterois volitans larvae. A. 2.5 mm; B. 4.6 mm (pectoral-fin pigment omitted due to broken rays in larva illustrated); C. 6.0 mm; D. 8.5 mm; E. 9.3 mm; F. 9.8 mm; G. radiograph of aberrant 12.9 mm larva lacking first three dorsal spines and associated structures; arrow indicates position of anteriormost pterygiophore and underdeveloped fourth dorsal spine. All lengths in mm standard length (SL) post-preservation. Pigmentation enhanced in some images for illustration and detail purposes.
FIGURE 6. A. transforming 9.5 in The lionfishes: Comparative development of Pterois volitans, Dendrochirus barberi, and D. hemprichi (Scorpaeniformes: Scorpaenidae: Pteroinae) and discrimination of their early life stages from non-pteroine scorpaenid genera in the Western North Atlantic
FIGURE 6. A. transforming 9.5 mm standard length (SL) Dendrochirus "bellus"; B. 11.5 mm SL D. zebra from Kojima (2014) used by permission of author and publisher.
FIGURE 1 in The lionfishes: Comparative development of Pterois volitans, Dendrochirus barberi, and D. hemprichi (Scorpaeniformes: Scorpaenidae: Pteroinae) and discrimination of their early life stages from non-pteroine scorpaenid genera in the Western North Atlantic
FIGURE 1. Typical scorpaenid cranial and opercular spination modified from Moser (1996). Abbreviations: spines 1–4 along anterior shelf of preopercle (APO); spines 1–5 along posterior shelf of preopercle (PPO); APO and PPO spines numbered from uppermost to lowermost; nuchal (N); parietal (P); coronal (CR); tympanic (TM); postocular (PSO); supraocular (SPO); nasal (NA); lower spine on opercle (LOP); upper spine on opercle (UOP); sphenotic ridges (SPH); pterotic ridge/spine (PTR); supracleithral ridge/spine (SC); posttemporal ridges and spines on upper (UPT) and lower (LPT) margins; infraorbital ridge (IO) comprised of bones 1 through 4, and associated spine on lower (L) or upper (U) margin.
FIGURE 5. Dendrochirus hemprichi. A in The lionfishes: Comparative development of Pterois volitans, Dendrochirus barberi, and D. hemprichi (Scorpaeniformes: Scorpaenidae: Pteroinae) and discrimination of their early life stages from non-pteroine scorpaenid genera in the Western North Atlantic
FIGURE 5. Dendrochirus hemprichi. A. transforming larva captured in the Red Sea estimated to be about 11.0 mm standard length (SL); B. dorsal view, same larva. C. juvenile D. hemprichi (21.0 mm SL) captured off South Sail Rock Channel, Kenya (LACM 31619.017).
FIGURE 4. Dendrochirus barberi larvae. A in The lionfishes: Comparative development of Pterois volitans, Dendrochirus barberi, and D. hemprichi (Scorpaeniformes: Scorpaenidae: Pteroinae) and discrimination of their early life stages from non-pteroine scorpaenid genera in the Western North Atlantic
FIGURE 4. Dendrochirus barberi larvae. A. cranial & opercular spination at 8.6 mm; B. 9.1 mm; C. 11.0 mm; D. 12.2 mm; E. 14.0 mm. Pigment enhanced in some images for detail purposes. All lengths in mm standard length (SL). Scale bar = 1.0 mm.
FIGURE 3 in The lionfishes: Comparative development of Pterois volitans, Dendrochirus barberi, and D. hemprichi (Scorpaeniformes: Scorpaenidae: Pteroinae) and discrimination of their early life stages from non-pteroine scorpaenid genera in the Western North Atlantic
FIGURE 3. Cranial and opercular spination in Pterois volitans larvae. A. 3.6 mm; B. 8.0 mm; C. 9.3 mm (pelvic fins not to scale). All lengths in mm standard length (SL) post-preservation.
Data from: Personality, predation, and group size: Unravelling behavioural drivers of lionfish (<em>Pterois volitans</em>) invasion success
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Data from: Genetic connectivity of Lionfish (Pterois volitans) in marine protected areas of the Gulf of Mexico and Caribbean Sea
<p><span><span><span><span><span><span><span><span><span><span><span>Lionfish (<i>Pterois volitans</i>) have rapidly invaded the tropical Atlantic and spread across the wider Caribbean in a relatively short period of time. Because of its high invasion capacity, we used it as a model to identify the connectivity among nine marine protected areas (MPAs) situated in four countries in the Gulf of Mexico and the Caribbean Sea.<span class="MsoBookTitle"><span><span><span><span><span><span><span><span><span><span><span><span>This study provides evidence of local genetic differentiation of <i>P. volitans</i>in the Gulf of Mexico and the Caribbean Sea.</span></span></span></span></span></span></span></span></span></span></span></span></span>A total of 475 lionfi</span></span></span></span></span></span></span></span></span></span></span><span><span><span><span><span><span><span><span><span><span><span>s</span></span></span></span></span></span></span></span></span></span></span><span><span><span><span><span><span><span><span><span><span><span>h samples were characterized with 12 microsatellites, with 6 to 20 alleles per locus. Departures from Hardy-Weinberg equilibrium (HWE) were found in 10 of the 12 loci, all caused by heterozygous excess. Moderate genetic differentiation was observed between Chiriviche, Venezuela and Xcalak , México localities (F<sub>ST</sub>= 0.012), and between the Los Roques and Veracruz (F<sub>ST</sub>= 0.074) sites. STRUCTURE analysis found that four genetic entities best fit our data. A unique genetic group in the Gulf of Mexico may imply that the lionfish invasion unfolded both in a counter-clockwise manner in the Gulf of Mexico<span><span>.</span></span>In spite of thenotable dispersion of <i>P. volitans</i>, our results show some genetic structure, as do other noninvasive Caribbean fish species, suggesting that the connectivity in some MPAs analyzed in the Caribbean is limited and caused by only a few source individuals with subsequent genetic drift leading to local genetic differentiation. This indicates that <i>P. volitans</i>dispersion could be caused by mesoscale phenomena, which produce stochastic connectivity pulses. Due to the isolation of some MPAs from others, these findings may hold a promise for local short-term control of by means of intensive fishing, even in MPAs, and may have regional long-term effects.</span></span></span></span></span></span></span></span></span></span></span></p>
Fig. 1 in Redescription and Geographic Variations of Pterois antennata and First Record of Pterois paucispinula from French Polynesia (Scorpaenidae: Pteroinae)
Fig. 1. Lateral (A) and dorsal (B) views of head and supraocular tentacle (C) of Pterois antennata (USNM 340483, 78.7 mm SL). Shaded areas indicate skin flaps. 1, nasal spine; 2, preocular spine; 3, supraocular spine; 4, postocular spine; 5, coronal spine; 6, tympanic spine; 7, parietal spine; 8, nuchal spine; 9, sphenotic spine; 10, pterotic spine; 11, lower posttemporal spine; 12, supracleithral spine; 13, preopercular spine; 14, suborbital ridge/spine; 15, lateral lacrimal ridge/spine; 16, posterior lacrimal spine; 17, postorbital spine/exposed sensory canal. Scale bars 5 mm.
Fig. 2 in Redescription and Geographic Variations of Pterois antennata and First Record of Pterois paucispinula from French Polynesia (Scorpaenidae: Pteroinae)
Fig. 2. Fresh specimens of Pterois antennata from various localities at different growth stages. (A) KAUM–I. 62198, 18.8 mm SL, Japan; (B) KAUM–I. 29635, 73.5 mm SL, Japan; (C) KAUM–I. 32021, 77.7 mm SL, Japan; (D) USNM 399831, 81.2 mm SL, French Polynesia; (E) BPBM 5851, 98.6 mm SL, French Polynesia; (F) KAUM–I. 38746, 116.5 mm SL, Japan; (G) BPBM 6927, 118.4 mm SL, French Polynesia; (H) KAUM–I. 29746, 153.9 mm SL, Japan. Photos: J. T. Williams (D) and J. E. Randall (E, G).
Fig. 3 in Newly Recognized Diagnostic Characters of the Poorly Known Lionfish Pterois brevipectoralis (Scorpaenidae: Pteroinae), with Notes on Fresh Coloration
Fig. 3. Preserved specimens of Pterois brevipectoralis. A, USNM 392069, 49.2 mm SL, Frigate Island, Cargados Carajos Shoals, Mascarene Islands; B, USNM 400514, 1 of 2 specimens, 69.3 mm SL, Raphael Island, Cargados Carajos Shoals, Mascarene Islands; C, HUMZ 73844, 91.3 mm SL, Saya de Malha Bank.
Data from: Genetic connectivity of Lionfish (Pterois volitans) in marine protected areas of the Gulf of Mexico and Caribbean Sea
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Fig. 5 in Newly Recognized Diagnostic Characters of the Poorly Known Lionfish Pterois brevipectoralis (Scorpaenidae: Pteroinae), with Notes on Fresh Coloration
Fig. 5. Supraocular tentacle of Pterois brevipectoralis, USNM 392069, 49.2 mm SL.
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