Comparative behavior of red lionfish Pterois volitans on native Pacific versus invaded Atlantic coral reefs.

Pacific red lionfish Pterois volitans have invaded Atlantic reefs and reached much greater population densities than on native reefs. We hypothesized that lionfish on invaded reefs would (1) experience higher kill rates and thus spend less time hunting, given the naivete of Atlantic prey, (2) consume a greater variety of prey, given the lack of native prey defenses, and (3) display less pronounced crepuscular patterns of hunting, given the ease of capturing Atlantic prey. Comparative behavioral observations were conducted in 2 native regions (Philippines and Guam) and 2 invaded regions (Cayman Islands and Bahamas) to assess lionfish time budgets and diurnal activity patterns and to explore correlations between environmental variables and lionfish behavior. Contrary to our first hypothesis, total time allocated to hunting and kill rates showed no difference between native and invaded reefs, despite considerable regional variation. However, Atlantic prey of lionfish were twice as large as Pacific prey, suggesting that despite similar hunt- ing behavior, invasive lionfish ingest greater daily rations of prey biomass. Furthermore, consis- tent with our second hypothesis, lionfish on invaded reefs had broader diets, and also relied less on 'blowing' behavior for prey capture, pointing to substantial prey naivete in the invaded range. Importantly, only in the invaded range did we observe lionfish consuming parrotfishes, the decline of which could have indirect effects on interactions between seaweeds and corals. Finally, lionfish overall tended to exhibit a crepuscular pattern in behavior whereby hunting peaked at sunrise and/or sunset, with no differences attributable to native vs. invasive status.

[1]  M. Valdéz-Moreno,et al.  Monitoring an Alien Invasion: DNA Barcoding and the Identification of Lionfish and Their Prey on Coral Reefs of the Mexican Caribbean , 2012, PloS one.

[2]  Isabelle M. Côté,et al.  Invasive Lionfish Drive Atlantic Coral Reef Fish Declines , 2012, PloS one.

[3]  M. Albins,et al.  Invasive red lionfish Pterois volitans blow directed jets of water at prey fish , 2012 .

[4]  R. Galzin,et al.  Distributions of Indo-Pacific lionfishes Pterois spp. in their native ranges : implications for the Atlantic invasion , 2012 .

[5]  J. Dierking,et al.  Elevated size and body condition and altered feeding ecology of the grouper Cephalopholis argus in non-native habitats , 2011 .

[6]  I. Côté,et al.  Foraging behaviour and prey consumption in the Indo-Pacific lionfish on Bahamian coral reefs , 2011 .

[7]  M. Lesser,et al.  Phase shift to algal dominated communities at mesophotic depths associated with lionfish (Pterois volitans) invasion on a Bahamian coral reef , 2011, Biological Invasions.

[8]  Mark A. Albins,et al.  Worst case scenario: potential long-term effects of invasive predatory lionfish (Pterois volitans) on Atlantic and Caribbean coral-reef communities , 2011, Environmental Biology of Fishes.

[9]  G. Russ,et al.  Patterns of recruitment of coral reef fishes in a monsoonal environment , 2010, Coral Reefs.

[10]  I. Côté,et al.  Predation rates of Indo-Pacific lionfish on Bahamian coral reefs , 2010 .

[11]  J. Morris,et al.  Feeding ecology of invasive lionfish (Pterois volitans) in the Bahamian archipelago , 2009, Environmental Biology of Fishes.

[12]  Pamela J. Schofield,et al.  Geographic extent and chronology of the invasion of non-native lionfish (Pterois volitans (Linnaeus 1758) and P. miles (Bennett 1828)) in the Western North Atlantic and Caribbean Sea , 2009 .

[13]  Kelly S. Andrews,et al.  Diel activity patterns of sixgill sharks, Hexanchus griseus: the ups and downs of an apex predator , 2009, Animal Behaviour.

[14]  I. Côté,et al.  Record densities of Indo-Pacific lionfish on Bahamian coral reefs , 2009, Coral Reefs.

[15]  Mark A. Albins,et al.  Invasive Indo-Pacific lionfish Pterois volitans reduce recruitment of Atlantic coral-reef fishes , 2008 .

[16]  Geoffrey R. Smith,et al.  Behavioral responses of American toad and bullfrog tadpoles to the presence of cues from the invasive fish, Gambusia affinis , 2008, Biological Invasions.

[17]  T. E. Leeuwen,et al.  Predation on the invasive red lionfish, Pterois volitans (Pisces: Scorpaenidae), by native groupers in the Bahamas , 2008, Coral Reefs.

[18]  S. L. Lima,et al.  Naiveté and an aquatic-terrestrial dichotomy in the effects of introduced predators. , 2006, Trends in ecology & evolution.

[19]  Q. Guo.  Intercontinental biotic invasions: what can we learn from native populations and habitats? , 2006, Biological Invasions.

[20]  J. E. Byers,et al.  Divergent Induced Responses to an Invasive Predator in Marine Mussel Populations , 2006, Science.

[21]  J. Hare,et al.  Abundance estimates of the Indo-Pacific lionfish Pterois volitans/miles complex in the Western North Atlantic , 2006, Biological Invasions.

[22]  P. Mumby.  The impact of exploiting grazers (Scaridae) on the dynamics of Caribbean coral reefs. , 2006, Ecological applications : a publication of the Ecological Society of America.

[23]  J. E. Randall.  Reef and Shore Fishes of the South Pacific: New Caledonia to Tahiti and the Pitcairn Islands , 2005 .

[24]  P. Sherman,et al.  Introduced species as evolutionary traps , 2005 .

[25]  B. David,et al.  Diel patterns of feeding and prey selection in giant kokopu (Galaxias argenteus) , 2004 .

[26]  Eric R. Buhle,et al.  A hotspot of non-native marine fishes: evidence for the aquarium trade as an invasion pathway , 2004 .

[27]  S. G. Reebs.  Plasticity of diel and circadian activity rhythms in fishes , 2002, Reviews in Fish Biology and Fisheries.

[28]  C. Y. Peng,et al.  An Introduction to Logistic Regression Analysis and Reporting , 2002 .

[29]  G. Quinn,et al.  Experimental Design and Data Analysis for Biologists , 2002 .

[30]  Fred Wells,et al.  Marine Biodiversity Hotspots and Conservation Priorities for Tropical Reefs , 2002, Science.

[31]  D. Simberloff,et al.  BIOTIC INVASIONS: CAUSES, EPIDEMIOLOGY, GLOBAL CONSEQUENCES, AND CONTROL , 2000 .

[32]  Holway,et al.  Animal behavior: an essential component of invasion biology. , 1999, Trends in ecology & evolution.

[33]  Wm Chen,et al.  Diel feeding rhythms of greenback flounder Rhombosolea tapirina (Günther 1862): the role of light–dark cycles and food deprivation , 1999 .

[34]  L. Fishelson.  Experiments and observations on food consumption, growth and starvation in Dendrochirus brachypterus and Pterois volitans (Pteroinae, Scorpaenidae) , 1997, Environmental Biology of Fishes.

[35]  R. Mac Nally,et al.  Hierarchical partitioning as an interpretative tool in multivariate inference , 1996 .

[36]  D. Goulet,et al.  A natural predator of the lion-fish, Pterois miles , 1991 .

[37]  G. Belovsky,et al.  Time budgets of grassland herbivores: body size similarities , 1986, Oecologia.

[38]  M. Albins.  Effects of invasive Pacific red lionfish Pterois volitans versus a native predator on Bahamian coral-reef fish communities , 2012, Biological Invasions.

[39]  P. Schofield.  Update on geographic spread of invasive lionfishes (Pterois volitans (Linnaeus, 1758) and P. miles (Bennett, 1828)) in the Western North Atlantic Ocean, Caribbean Sea and Gulf of Mexico , 2010 .

[40]  Paula E. Whitfield,et al.  Biology, ecology, control and management of the invasive Indo-Pacific lionfish: An updated integrated assessment , 2009 .

[41]  Raymond N. Gorley,et al.  PERMANOVA+ for PRIMER. Guide to software and statistical methods , 2008 .

[42]  G. Helfman.  Fish Behaviour by Day, Night and Twilight , 1986 .

[43]  L. Fishelson.  Ethology and reproduction of pteroid fishes found in the gulf of Aqaba (Red Sea), especially Dendrochirus brachypterus (Cuvier), (Pteroidae, Teleostei). [Conference paper]. , 1975 .