A coordinated and sustained international strategy is required to turn the tide on the Atlantic lionfish invasion

Matthew W. Johnston, Sam Purkis

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Atlantic lionfish have caused measurable ecosystem damage in their invaded range. As a matter of urgency, strategies to suppress lionfish have therefore risen to the fore amongst the ocean management community. We use a biophysical model and ocean climate data to demonstrate how Atlantic lionfish larvae are dispersed by currents and how this dispersal, combined with their breeding strategy, negates effective control using methods traditionally executed on a local scale. This study quantitatively emphasizes the high level of larval connectivity that exists between the many nations whose waters now support established lionfish populations. For any given area, our results indicate that the key to suppressing the invasion is to simultaneously choke all upstream linkages that supply external larvae and renourish the local population. On the basis of a case study developed for the Carolinas, USA, an area of high lionfish abundance, the model suggests that such a strategy requires monthly culls that remove 20% of lionfish biomass in the Carolinas and all locations to which the Carolinas are linked hydrographically. Conversely, if culls target only those locales that deliver the majority (95%) of lionfish larvae to the Carolinas, and therefore ignore those locations which contribute the remaining 5% of lionfish larvae, the requisite cull rate exceeds 60% and suppresses lionfish abundance for only 5 yr. The latter finding exposes an intrinsic danger: sparse lionfish left uncontrolled may derail a concerted, yet not comprehensive, effort to control the invader. This study provides a modelling approach to quantitatively target and manage the lionfish population for nations whose waters are now plagued by invasive lionfish.

Original languageEnglish (US)
Pages (from-to)219-235
Number of pages17
JournalMarine Ecology Progress Series
Volume533
DOIs
StatePublished - Jan 1 2015
Externally publishedYes

Fingerprint

tides
tide
larva
larvae
oceans
ocean
linkage (genetics)
connectivity
control methods
breeding
case studies
climate
water
damage
ecosystems
ecosystem
biomass
modeling

Keywords

  • Caribbean
  • Lionfish
  • Lionfish culls
  • Population control
  • Pterois volitans
  • Western Atlantic

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Aquatic Science

Cite this

A coordinated and sustained international strategy is required to turn the tide on the Atlantic lionfish invasion. / Johnston, Matthew W.; Purkis, Sam.

In: Marine Ecology Progress Series, Vol. 533, 01.01.2015, p. 219-235.

Research output: Contribution to journalArticle

@article{b70ea3113380496aabd41402210bbb69,
title = "A coordinated and sustained international strategy is required to turn the tide on the Atlantic lionfish invasion",
abstract = "Atlantic lionfish have caused measurable ecosystem damage in their invaded range. As a matter of urgency, strategies to suppress lionfish have therefore risen to the fore amongst the ocean management community. We use a biophysical model and ocean climate data to demonstrate how Atlantic lionfish larvae are dispersed by currents and how this dispersal, combined with their breeding strategy, negates effective control using methods traditionally executed on a local scale. This study quantitatively emphasizes the high level of larval connectivity that exists between the many nations whose waters now support established lionfish populations. For any given area, our results indicate that the key to suppressing the invasion is to simultaneously choke all upstream linkages that supply external larvae and renourish the local population. On the basis of a case study developed for the Carolinas, USA, an area of high lionfish abundance, the model suggests that such a strategy requires monthly culls that remove 20{\%} of lionfish biomass in the Carolinas and all locations to which the Carolinas are linked hydrographically. Conversely, if culls target only those locales that deliver the majority (95{\%}) of lionfish larvae to the Carolinas, and therefore ignore those locations which contribute the remaining 5{\%} of lionfish larvae, the requisite cull rate exceeds 60{\%} and suppresses lionfish abundance for only 5 yr. The latter finding exposes an intrinsic danger: sparse lionfish left uncontrolled may derail a concerted, yet not comprehensive, effort to control the invader. This study provides a modelling approach to quantitatively target and manage the lionfish population for nations whose waters are now plagued by invasive lionfish.",
keywords = "Caribbean, Lionfish, Lionfish culls, Population control, Pterois volitans, Western Atlantic",
author = "Johnston, {Matthew W.} and Sam Purkis",
year = "2015",
month = "1",
day = "1",
doi = "10.3354/meps11399",
language = "English (US)",
volume = "533",
pages = "219--235",
journal = "Marine Ecology - Progress Series",
issn = "0171-8630",
publisher = "Inter-Research",

}

TY - JOUR

T1 - A coordinated and sustained international strategy is required to turn the tide on the Atlantic lionfish invasion

AU - Johnston, Matthew W.

AU - Purkis, Sam

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Atlantic lionfish have caused measurable ecosystem damage in their invaded range. As a matter of urgency, strategies to suppress lionfish have therefore risen to the fore amongst the ocean management community. We use a biophysical model and ocean climate data to demonstrate how Atlantic lionfish larvae are dispersed by currents and how this dispersal, combined with their breeding strategy, negates effective control using methods traditionally executed on a local scale. This study quantitatively emphasizes the high level of larval connectivity that exists between the many nations whose waters now support established lionfish populations. For any given area, our results indicate that the key to suppressing the invasion is to simultaneously choke all upstream linkages that supply external larvae and renourish the local population. On the basis of a case study developed for the Carolinas, USA, an area of high lionfish abundance, the model suggests that such a strategy requires monthly culls that remove 20% of lionfish biomass in the Carolinas and all locations to which the Carolinas are linked hydrographically. Conversely, if culls target only those locales that deliver the majority (95%) of lionfish larvae to the Carolinas, and therefore ignore those locations which contribute the remaining 5% of lionfish larvae, the requisite cull rate exceeds 60% and suppresses lionfish abundance for only 5 yr. The latter finding exposes an intrinsic danger: sparse lionfish left uncontrolled may derail a concerted, yet not comprehensive, effort to control the invader. This study provides a modelling approach to quantitatively target and manage the lionfish population for nations whose waters are now plagued by invasive lionfish.

AB - Atlantic lionfish have caused measurable ecosystem damage in their invaded range. As a matter of urgency, strategies to suppress lionfish have therefore risen to the fore amongst the ocean management community. We use a biophysical model and ocean climate data to demonstrate how Atlantic lionfish larvae are dispersed by currents and how this dispersal, combined with their breeding strategy, negates effective control using methods traditionally executed on a local scale. This study quantitatively emphasizes the high level of larval connectivity that exists between the many nations whose waters now support established lionfish populations. For any given area, our results indicate that the key to suppressing the invasion is to simultaneously choke all upstream linkages that supply external larvae and renourish the local population. On the basis of a case study developed for the Carolinas, USA, an area of high lionfish abundance, the model suggests that such a strategy requires monthly culls that remove 20% of lionfish biomass in the Carolinas and all locations to which the Carolinas are linked hydrographically. Conversely, if culls target only those locales that deliver the majority (95%) of lionfish larvae to the Carolinas, and therefore ignore those locations which contribute the remaining 5% of lionfish larvae, the requisite cull rate exceeds 60% and suppresses lionfish abundance for only 5 yr. The latter finding exposes an intrinsic danger: sparse lionfish left uncontrolled may derail a concerted, yet not comprehensive, effort to control the invader. This study provides a modelling approach to quantitatively target and manage the lionfish population for nations whose waters are now plagued by invasive lionfish.

KW - Caribbean

KW - Lionfish

KW - Lionfish culls

KW - Population control

KW - Pterois volitans

KW - Western Atlantic

UR - http://www.scopus.com/inward/record.url?scp=84938920777&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84938920777&partnerID=8YFLogxK

U2 - 10.3354/meps11399

DO - 10.3354/meps11399

M3 - Article

AN - SCOPUS:84938920777

VL - 533

SP - 219

EP - 235

JO - Marine Ecology - Progress Series

JF - Marine Ecology - Progress Series

SN - 0171-8630

ER -