Population connectivity and the effectiveness of marine protected areas to protect vulnerable, exploited and endemic coral reef fishes at an endemic hotspot

Handle URI:
http://hdl.handle.net/10754/566150
Title:
Population connectivity and the effectiveness of marine protected areas to protect vulnerable, exploited and endemic coral reef fishes at an endemic hotspot
Authors:
Van Der Meer, Martin H.; Berumen, Michael L. ( 0000-0003-2463-2742 ) ; Hobbs, Jean Paul Adrian; Van Herwerden, Lynne Van
Abstract:
Marine protected areas (MPAs) aim to mitigate anthropogenic impacts by conserving biodiversity and preventing overfishing. The effectiveness of MPAs depends on population connectivity patterns between protected and non-protected areas. Remote islands are endemism hotspots for coral reef fishes and provide rare examples of coral reefs with limited fishing pressure. This study explored population genetic connectivity across a network of protected and non-protected areas for the endemic wrasse, Coris bulbifrons, which is listed as “vulnerable” by the IUCN due to its small, decreasing geographic range and declining abundance. Mitochondrial DNA (mtDNA) and microsatellite DNA (msatDNA) markers were used to estimate historic and contemporary gene flow to determine the level of population self-replenishment and to measure genetic and genotypic diversity among all four locations in the species range (south-west Pacific Ocean)—Middleton Reef (MR), Elizabeth Reef (ER), Lord Howe Island (LHI) and Norfolk Island (NI). MPAs exist at MR and LHI and are limited or non-existent at ER and NI, respectively. There was no obvious differentiation in mtDNA among locations, however, msatDNA revealed differentiation between the most peripheral (NI) and all remaining locations (MR, ER and LHI). Despite high mtDNA connectivity (M = 259–1,144), msatDNA connectivity was limited (M = 3–9) with high self-replenishment (68–93 %) at all locations. NI is the least connected and heavily reliant on self-replenishment, and the absence of MPAs at NI needs to be rectified to ensure the persistence of endemic species at this location. Other endemic fishes exhibit similar patterns of high self-replenishment across the four locations, indicating that a single spatial management approach consisting of a MPA network protecting part of each location could provide reasonable protection for these species. Thus, the existing network of MPAs at this endemic hotspot appears adequate at some locations, but not at all.
KAUST Department:
Red Sea Research Center (RSRC)
Publisher:
Springer Nature
Journal:
Coral Reefs
Issue Date:
23-Dec-2014
DOI:
10.1007/s00338-014-1242-2
Type:
Article
ISSN:
07224028
Sponsors:
We thank the LHI Board, LHI Park, Envirofund Australia (Natural Heritage Trust), Australian Department of the Environment and Water Resources and the Capricorn Star for either financial and/or logistical support. We also thank Sallyann Gudge and Ian Kerr (LHI Marine Park), Gary Crombie (donation of 15 Coris samples, LHI), Sivakumar Neelamegam (KAUST) and at NI: Dave Biggs (Charter Marine), James Edward (Bounty Divers), Doug Creek, Michael Smith, Jack Marges, Karlene Christian and Judith and Peter Davidson (Reserves and Forestry) for their assistance.
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorVan Der Meer, Martin H.en
dc.contributor.authorBerumen, Michael L.en
dc.contributor.authorHobbs, Jean Paul Adrianen
dc.contributor.authorVan Herwerden, Lynne Vanen
dc.date.accessioned2015-08-12T09:30:10Zen
dc.date.available2015-08-12T09:30:10Zen
dc.date.issued2014-12-23en
dc.identifier.issn07224028en
dc.identifier.doi10.1007/s00338-014-1242-2en
dc.identifier.urihttp://hdl.handle.net/10754/566150en
dc.description.abstractMarine protected areas (MPAs) aim to mitigate anthropogenic impacts by conserving biodiversity and preventing overfishing. The effectiveness of MPAs depends on population connectivity patterns between protected and non-protected areas. Remote islands are endemism hotspots for coral reef fishes and provide rare examples of coral reefs with limited fishing pressure. This study explored population genetic connectivity across a network of protected and non-protected areas for the endemic wrasse, Coris bulbifrons, which is listed as “vulnerable” by the IUCN due to its small, decreasing geographic range and declining abundance. Mitochondrial DNA (mtDNA) and microsatellite DNA (msatDNA) markers were used to estimate historic and contemporary gene flow to determine the level of population self-replenishment and to measure genetic and genotypic diversity among all four locations in the species range (south-west Pacific Ocean)—Middleton Reef (MR), Elizabeth Reef (ER), Lord Howe Island (LHI) and Norfolk Island (NI). MPAs exist at MR and LHI and are limited or non-existent at ER and NI, respectively. There was no obvious differentiation in mtDNA among locations, however, msatDNA revealed differentiation between the most peripheral (NI) and all remaining locations (MR, ER and LHI). Despite high mtDNA connectivity (M = 259–1,144), msatDNA connectivity was limited (M = 3–9) with high self-replenishment (68–93 %) at all locations. NI is the least connected and heavily reliant on self-replenishment, and the absence of MPAs at NI needs to be rectified to ensure the persistence of endemic species at this location. Other endemic fishes exhibit similar patterns of high self-replenishment across the four locations, indicating that a single spatial management approach consisting of a MPA network protecting part of each location could provide reasonable protection for these species. Thus, the existing network of MPAs at this endemic hotspot appears adequate at some locations, but not at all.en
dc.description.sponsorshipWe thank the LHI Board, LHI Park, Envirofund Australia (Natural Heritage Trust), Australian Department of the Environment and Water Resources and the Capricorn Star for either financial and/or logistical support. We also thank Sallyann Gudge and Ian Kerr (LHI Marine Park), Gary Crombie (donation of 15 Coris samples, LHI), Sivakumar Neelamegam (KAUST) and at NI: Dave Biggs (Charter Marine), James Edward (Bounty Divers), Doug Creek, Michael Smith, Jack Marges, Karlene Christian and Judith and Peter Davidson (Reserves and Forestry) for their assistance.en
dc.publisherSpringer Natureen
dc.subjectEndemic hotspoten
dc.subjectLord Howe Islanden
dc.subjectManagementen
dc.subjectMarine protected areasen
dc.subjectOverfishingen
dc.titlePopulation connectivity and the effectiveness of marine protected areas to protect vulnerable, exploited and endemic coral reef fishes at an endemic hotspoten
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalCoral Reefsen
dc.contributor.institutionMolecular Ecology and Evolution Laboratory, School of Marine and Tropical Biology, James Cook UniversityTownsville, Australiaen
dc.contributor.institutionARC Centre of Excellence for Coral Reef Studies, James Cook UniversityTownsville, Australiaen
dc.contributor.institutionDepartment of Environment and Agriculture, Curtin UniversityPerth, WA, Australiaen
dc.contributor.institutionCentre for Sustainable Tropical Fisheries and Aquaculture, James Cook UniversityTownsville, Australiaen
kaust.authorBerumen, Michael L.en
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