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13 results for “Pterois volitans”
Ecological Drivers of Invasive Lionfish (Pterois volitans and Pterois miles) Distribution Across Mesophotic Reefs in Bermuda
<p>The data and code in this document were obtained using diver-led visual surveys of mesophotic reef sites to examine how variations in potential ecological drivers may affect lionfish distribution on mesophotic reefs in Bermuda. These data and code were used for analysis and figure preparation in association with publication in Frontiers in Marine Science (Goodbody-Gringley et al. 2019). </p>
Phylogeography of lionfishes (Pterois) indicate taxonomic over splitting and hybrid origin of the invasive Pterois volitans
The evolutionary consequences of hybridization are poorly understood, especially in the marine realm where hybridization was once thought to be a rare occurrence. Previous research indicated that the lionfishes Pterois volitans and P. miles are sister species, both of which have been detected in the recent invasion of the Atlantic. Anecdotal data from the invasive range indicates they may hybridize, but previous studies have not examined the potential for these species to hybridize in the native range, or how such hybridization affects the distribution of genetic diversity. Here we address evolutionary divergence and population structure using mtDNA COI and two nuclear introns from 214 lionfish including four putative sister species (36 P. miles, 90 P. volitans, 32 P. lunulata, and 56 P. russelii) collected at 10 locations. Genetic data are supplemented with a re-examination of key morphological characters: dorsal, anal and pectoral fin ray counts. These data reveal two lineages (d = 0.041 in COI) among the four putative species: an Indian Ocean lineage, represented by P. miles and a Pacific Ocean lineage represented by P. lunulata and P. russelii. Lionfish identified as P. volitans appear to be hybrids between the sister linages of P. miles and P. lunulata/russelii, a conclusion supported by both the genetic data and morphology. The degree and geographic extent of introgression indicates widespread hybridization, or the absence of valid species distinctions between all four species. These findings also indicate that the lionfish invading tropical Atlantic Ocean, usually labeled P. volitans, is a hybrid.
Phylogeography of lionfishes (Pterois) indicate taxonomic over splitting and hybrid origin of the invasive Pterois volitans
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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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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>
Data from: Genetic connectivity of Lionfish (Pterois volitans) in marine protected areas of the Gulf of Mexico and Caribbean Sea
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