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Pterois volitans

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https://www.readbyqxmd.com/read/29108968/identification-of-a-moronecidin-like-antimicrobial-peptide-in-the-venomous-fish-pterois-volitans-functional-and-structural-study-of-pteroicidin-%C3%AE
#1
Baptiste Houyvet, Yolande Bouchon-Navaro, Claude Bouchon, Didier Goux, Benoît Bernay, Erwan Corre, Céline Zatylny-Gaudin
The present study characterizes for the first time an antimicrobial peptide in lionfish (Pterois volitans), a venomous fish. Using a peptidomic approach, we identified a mature piscidin in lionfish and called it pteroicidin-α. We detected an amidated form (pteroicidin-α- CONH2) and a non-amidated form (pteroicidin-α-COOH), and then performed their functional and structural study. Interestingly, the two peptides displayed different antibacterial and hemolytic activity levels. Pteroicidin-α-CONH2 was bactericidal on human pathogens like Staphylococcus aureus or Escherichia coli, as well as on the fish pathogen Aeromonas salmonicida, while pteroicidin-α-COOH only inhibited their growth...
November 11, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28886161/a-morphological-and-functional-basis-for-maximum-prey-size-in-piscivorous-fishes
#2
Michalis Mihalitsis, David R Bellwood
Fish predation is important in shaping populations and community structure in aquatic systems. These predator-prey interactions can be influenced by environmental, behavioural and morphological factors. Morphological constraints influence the feeding performance of species, and interspecific differences can thus affect patterns of resource use. For piscivorous fishes that swallow prey whole, feeding performance has traditionally been linked to three key morphological constraints: oral gape, pharyngeal gape, and the cleithral gape...
2017: PloS One
https://www.readbyqxmd.com/read/28789838/comparison-of-biochemical-and-cytotoxic-activities-of-extracts-obtained-from-dorsal-spines-and-caudal-fin-of-adult-and-juvenile-non-native-caribbean-lionfish-pterois-volitans-miles
#3
Aránzazu Sáenz, Natalia Ortiz, Bruno Lomonte, Alexandra Rucavado, Cecilia Díaz
Pterois volitans/miles lionfish (adult and juvenile) dorsal spines and caudal fin extracts were compared in their general composition, enzymatic activities and hemolytic and cytotoxic effects on bovine aortic endothelial cells and murine myoblasts, to distinguish between the activities present in the venom and epidermal mucus. Intradermal and intramuscular injections were also administered in mice to determine in vivo effects. This work shows that crude venom of Caribbean species of lionfish, present in dorsal spines, induces several in vitro effects including hemolysis, weak cytotoxicity, proteolytic and hyaluronidase activities, whereas in vivo, it is not hemorrhagic nor myotoxic, but causes edema, plasma extravasation and a thrombotic-associated lesion on the skin...
August 5, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28637254/phylogeography-of-lionfishes-pterois-indicate-taxonomic-over-splitting-and-hybrid-origin-of-the-invasive-pterois-volitans
#4
Christie L Wilcox, Hiroyuki Motomura, Mizuki Matsunuma, Brian W Bowen
The lionfish is an iconic marine fish, and recently renowned for a disastrous introduction into the West Atlantic. Genetic surveys of the putative invaders (Pterois volitans and P. miles) in their natural Indo-Pacific range can illuminate both topics. Previous research indicated that P. volitans and P. miles are sister species that hybridize in the invasive range, but hybridization in the native range is unknown. Here we apply mtDNA COI and two nuclear introns (S7 RP1 and Gpd2) from 229 lionfish including the two invaders and two closely-related taxa (44 P...
June 16, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28573007/depth-dependent-effects-of-culling-do-mesophotic-lionfish-populations-undermine-current-management
#5
Dominic A Andradi-Brown, Rachel Grey, Alicia Hendrix, Drew Hitchner, Christina L Hunt, Erika Gress, Konrad Madej, Rachel L Parry, Catriona Régnier-McKellar, Owen P Jones, María Arteaga, Andrea P Izaguirre, Alex D Rogers, Dan A Exton
Invasive lionfish (Pterois volitans and P. miles) have spread widely across the western Atlantic and are recognized as a major threat to native marine biodiversity. Although lionfish inhabit both shallow reefs and mesophotic coral ecosystems (MCEs; reefs from 30 to 150 m depth), the primary management response implemented by many countries has been diver-led culling limited to reefs less than 30 m. However, many reef fish undergo ontogenetic migrations, with the largest and therefore most fecund individuals found at greatest depths...
May 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28470766/the-roar-of-the-lionfishes-pterois-volitans-and-pterois-miles
#6
M Beattie, D P Nowacek, A K Bogdanoff, L Akins, J A Morris
Through the analysis of acoustic recordings of captive Pterois spp., this study has confirmed anecdotal evidence that Pterois spp. are soniferous. This report of sound production in Pterois spp. provides the foundation for future research into their specific acoustic capabilities including sound production mechanisms, the role of social behaviour and applied techniques for controlling and monitoring invasive Pterois spp. in the tropical and temperate western Atlantic Ocean.
June 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28243542/effectiveness-of-removals-of-the-invasive-lionfish-how-many-dives-are-needed-to-deplete-a-reef
#7
Paolo Usseglio, Jason D Selwyn, Alan M Downey-Wall, J Derek Hogan
Introduced Indo-Pacific red lionfish (Pterois volitans/miles) have spread throughout the greater Caribbean and are associated with a number of negative impacts on reef ecosystems. Human interventions, in the form of culling activities, are becoming common to reduce their numbers and mitigate the negative effects associated with the invasion. However, marine managers must often decide how to best allocate limited resources. Previous work has identified the population size thresholds needed to limit the negative impacts of lionfish...
2017: PeerJ
https://www.readbyqxmd.com/read/28072444/predator-effects-on-reef-fish-settlement-depend-on-predator-origin-and-recruit-density
#8
Cassandra E Benkwitt
During major life-history transitions, animals often experience high mortality rates due to predation, making predator avoidance particularly advantageous during these times. There is mixed evidence from a limited number of studies, however, regarding how predator presence influences settlement of coral-reef fishes and it is unknown how other potentially mediating factors, including predator origin (native vs. nonnative) or interactions among conspecific recruits, mediate the non-consumptive effects of predators on reef fish settlement...
April 2017: Ecology
https://www.readbyqxmd.com/read/27990292/lionfish-misidentification-circumvents-an-optimized-escape-response-by-prey
#9
Mark I McCormick, Bridie J M Allan
Invasive lionfish represent an unprecedented problem in the Caribbean basin, where they are causing major changes to foodwebs and habitats through their generalized predation on fishes and invertebrates. To ascertain what makes the red lionfish (Pterois volitans) such a formidable predator, we examined the reaction of a native damselfish prey, the whitetail damsel (Pomacentrus chrysurus), to a repeatable startle stimulus once they had been forewarned of the sight or smell of lionfish. Fast-start responses were compared with prey forewarned of a predatory rockcod (Cephalopholis microprion), a corallivorous butterflyfish (Chaetodon trifasctiatus) and experimental controls...
2016: Conservation Physiology
https://www.readbyqxmd.com/read/27920953/age-growth-and-population-structure-of-invasive-lionfish-pterois-volitans-miles-in-northeast-florida-using-a-length-based-age-structured-population-model
#10
Eric G Johnson, Mary Katherine Swenarton
The effective management of invasive species requires detailed understanding of the invader's life history. This information is essential for modeling population growth and predicting rates of expansion, quantifying ecological impacts and assessing the efficacy of removal and control strategies. Indo-Pacific lionfish (Pterois volitans/miles) have rapidly invaded the western Atlantic, Gulf of Mexico and Caribbean Sea with documented negative impacts on native ecosystems. To better understand the life history of this species, we developed and validated a length-based, age-structured model to investigate age, growth and population structure in northeast Florida...
2016: PeerJ
https://www.readbyqxmd.com/read/27859117/central-place-foraging-and-ecological-effects-of-an-invasive-predator-across-multiple-habitats
#11
Cassandra E Benkwitt
Cross-habitat foraging movements of predators can have widespread implications for predator and prey populations, community structure, nutrient transfer, and ecosystem function. Although central-place foraging models and other aspects of optimal foraging theory focus on individual predator behavior, they also provide useful frameworks for understanding the effects of predators on prey populations across multiple habitats. However, few studies have examined both the foraging behavior and ecological effects of nonnative predators across multiple habitats, and none has tested whether nonnative predators deplete prey in a manner predicted by these foraging models...
October 2016: Ecology
https://www.readbyqxmd.com/read/27113021/the-invasive-lionfish-pterois-volitans-used-as-a-sentinel-species-to-assess-the-organochlorine-pollution-by-chlordecone-in-guadeloupe-lesser-antilles
#12
Dromard R Charlotte, Bouchon-Navaro Yolande, Sebastien Cordonnier, Bouchon Claude
In Guadeloupe, many marine organisms are affected by an organochlorine pollution used in the past by the banana industry to fight against the banana weevil. In the present study, we evaluated the level of contamination of the invasive Indo-Pacific lionfish, Pterois volitans, all around the island. Concentrations of chlordecone varied from 3 to 144μg.kg(-1) wet weight. The highest concentrations were recorded when samples were captured in the marine zones located downstream of the previous banana plantations...
June 15, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/26857556/envenomation-by-the-invasive-pterois-volitans-species-lionfish-in-the-french-west-indies-a-two-year-prospective-study-in-martinique
#13
Dabor Resiere, Laura Cerland, Luc De Haro, Ruddy Valentino, Anne Criquet-Hayot, Cyrille Chabartier, Stephane Kaidomar, Yanick Brouste, Bruno Mégarbane, Hossein Mehdaoui
CONTEXT: The invasion of the lionfish (Pterois volitans) in the French West Indies represents one of the most important marine invasions by alien species in history. Since its first recognition in Martinique in February 2011, the lionfish presence has strongly progressed, resulting in increasing envenomation cases. Our objective was to report features of lionfish envenomation and outcome. METHODS: A prospective study conducted at the Martinique University Hospital by the emergency departments, general practitioners, and the pre-hospital emergency ambulance service included all the patients referred from November 2011 to February 2014 for one or several stings by lionfish, as strongly suggested by the fish description and the association with marked local pain and edema...
2016: Clinical Toxicology
https://www.readbyqxmd.com/read/26299126/ecology-and-management-of-the-invasive-lionfish-pterois-volitans-miles-complex-perciformes-scorpaenidae-in-southern-costa-rica
#14
Vera Sandel, Damián Martínez-Fernández, Daniel Wangpraseurt, Luis Sierra
Invasive species alter ecosystem integrity and functioning and are considered one of the major threats to biodiversity on a global scale. The indopacific lionfish (Plerois volitans [Linnaeus, 1758] / miles [Bennet, 1882] complex) is the first non-native marine fish that has established itself in the Western Atlantic. It was first reported in Florida in the 1980s and then spread across the entire Caribbean in subsequent years. In Costa Rica, lionfish were first sighted by the end of 2008 and are now present in all South Caribbean reefs...
March 2015: Revista de Biología Tropical
https://www.readbyqxmd.com/read/26114745/control-strategy-scenarios-for-the-alien-lionfish-pterois-volitans-in-chinchorro-bank-mexican-caribbean-based-on-semi-quantitative-loop-analysis
#15
Marco Ortiz, Fabián Rodriguez-Zaragoza, Brenda Hermosillo-Nuñez, Ferenc Jordán
Ecological and eco-social network models were constructed with different levels of complexity in order to represent and evaluate management strategies for controlling the alien species Pterois volitans in Chinchorro bank (Mexican Caribbean). Levins´s loop analysis was used as a methodological framework for assessing the local stability (considered as a component of sustainability) of the modeled management interventions represented by various scenarios. The results provided by models of different complexity (models 1 through 4) showed that a reduction of coral species cover would drive the system to unstable states...
2015: PloS One
https://www.readbyqxmd.com/read/26098309/regional-variation-in-parasite-species-richness-and-abundance-in-the-introduced-range-of-the-invasive-lionfish-pterois-volitans
#16
COMPARATIVE STUDY
Andrew J Sellers, Gregory M Ruiz, Brian Leung, Mark E Torchin
Parasites can play an important role in biological invasions. While introduced species often lose parasites from their native range, they can also accumulate novel parasites in their new range. The accumulation of parasites by introduced species likely varies spatially, and more parasites may shift to new hosts where parasite diversity is high. Considering that parasitism and disease are generally more prevalent at lower latitudes, the accumulation of parasites by introduced hosts may be greater in tropical regions...
2015: PloS One
https://www.readbyqxmd.com/read/25810712/report-of-15-injuries-caused-by-lionfish-pterois-volitans-in-aquarists-in-brazil-a-critical-assessment-of-the-severity-of-envenomations
#17
Vidal Haddad, Hamilton Ometto Stolf, José Yamin Risk, Francisco Os França, João Luiz Costa Cardoso
Lionfish are venomous fish that belong to the Scorpaenidae family. Individuals of this family and those of the Synanceiidae family comprise most of the existing venomous fish in the world. Lionfish are originally found in the Indo-Pacific, but they have received special attention in the last years for their dissemination in the Atlantic Ocean, with the emergence of large populations in the USA, Caribbean and South America. Because of its beauty, this fish has always been present in private and commercial aquariums around the world...
2015: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/25720173/karyotype-of-the-invasive-species-pterois-volitans-scorpaeniformes-scorpaenidae-from-margarita-island-venezuela
#18
Mauro Nirchio, Nicolás Ehemann, Raquel Siccha-Ramirez, Ernesto Ron, Julio Eduardo Pérez, Anna Rita Rossi, Claudio Oliveira
The genus Pterois includes nine valid species, native to the Red Sea and Indian Ocean throughout the Western Pacific. P. volitans and P. miles are native to the Indo-Pacific, and were introduced into Florida waters as a result of aquarium releases, and have been recently recognized as invaders of the Western Atlantic and Caribbean Sea (Costa Rica to Venezuela). Thus far, cytogenetic studies of the genus Pterois only cover basic aspects of three species, including P. volitans from Indo-Pacific Ocean. Considering the lack of more detailed information about cytogenetic characteristics of this invasive species, the objective of the present study was to investigate the basic and molecular cytogenetic characteristics of P...
December 2014: Revista de Biología Tropical
https://www.readbyqxmd.com/read/25614791/in-situ-tagging-technique-for-fishes-provides-insight-into-growth-and-movement-of-invasive-lionfish
#19
John L Akins, James A Morris, Stephanie J Green
Information on fish movement and growth is primarily obtained through the marking and tracking of individuals with external tags, which are usually affixed to anesthetized individuals at the surface. However, the quantity and quality of data obtained by this method is often limited by small sample sizes owing to the time associated with the tagging process, high rates of tagging-related mortality, and displacement of tagged individuals from the initial capture location. To address these issues, we describe a technique for applying external streamer and dart tags in situ, which uses SCUBA divers to capture and tag individual fish on the sea floor without the use of anesthetic...
October 2014: Ecology and Evolution
https://www.readbyqxmd.com/read/25303255/lionfish-on-the-loose-in-the-waters-off-saint-vincent
#20
J S Welsh, J Young, R Gupta
OBJECTIVE: The purpose of this study was to determine if the exotic venomous species, Pterois volitans (lionfish) had reached as far south as St Vincent in the Caribbean. This predatory marine fish has successfully invaded the waters of the Western Atlantic and the Caribbean. Such success as an exotic invasive species is rare for a predatory marine fish. It is possible that the fish are growing larger and spreading faster than anticipated, thanks to a lower burden of parasites and a paucity of natural predators in their new environment...
March 2014: West Indian Medical Journal
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