Publication Repository

High mortality during settlement is a population bottleneck for a tropical surgeonfish

Show simple item record

dc.contributor Australian Inst Marine Sci
dc.contributor Univ Perpignan
dc.contributor Aquafish Technol Sa
dc.contributor Oregon State University
dc.contributor Universite Perpignan Via Domitia
dc.contributor Oregon University System
dc.contributor Dept Zool
dc.contributor Languedoc-roussillon Universites (comue)
dc.contributor Oregon State Univ
dc.contributor Ecole Prat Hautes Etud
dc.contributor Esa Cnrs 8046
dc.contributor Australian Institute Of Marine Science
dc.contributor Australian Institute Of Marine Science (aims) en PLANES, S DOHERTY, PJ DUFOUR, V GALZIN, R HIXON, MA MEEKAN, MG 2017-03-21T00:54:48Z 2013-02-28T06:45:22Z 2017-03-21T00:54:48Z 2019-07-08T02:18:11Z 2017-03-21T00:54:48Z 2017-03-21T00:54:48Z 2013-02-28T06:45:22Z 2019-07-08T02:18:11Z 2004-09-01
dc.identifier 5973 en
dc.identifier.citation Doherty PJ, Dufour V, Galzin R, Hixon M, Meekan MG and Planes S (2004) High mortality during settlement is a population bottleneck for a tropical surgeonfish. Ecology. 85: 2422-2428. en
dc.identifier.issn 0012-9658
dc.description Link to abstract/full text - en
dc.description.abstract Replenishment of benthic marine populations typically involves "settlement" from pelagic larval to benthic juvenile habitats. Mortality during this transition has been unknown because of the difficulty of measuring propagule supply in open water. For three weeks, we compared the nocturnal passage of presettlement fishes across the barrier reef encircling Moorea Island (French Polynesia) with the abundance of benthic recruits in the back-reef lagoon on the following morning. During, this time, >40,000 presettlement unicornfish, Naso unicornis entered our study area of similar to1 km(2) with half arriving on just two nights. Using coupled Beverton-Holt functions to describe the decay of each cohort, we were able to predict the daily abundance of recruits and their final age structure from the presettlement inputs. The best model estimated that similar to61% of the potential settlers were lost between their nocturnal arrival and the following morning, independent of cohort size. Postsettlement mortality was density dependent, varying between 9% and 20% per day. We attribute all mortality to predation and suggest that high risk associated with settlement has shaped colonization strategies. Because fishing targets the survivors of this population bottleneck, aquarium fisheries may be more sustainable when sourced from pelagic juveniles.
dc.description.uri en
dc.language en en
dc.language English
dc.publisher American Association for the Advancement of Science en
dc.relation.ispartof Ecology - pages: 85: 2422-2428 en
dc.relation.ispartof Null
dc.subject Metamorphosis
dc.subject Piscivores
dc.subject French Polynesia
dc.subject Ecology
dc.subject Larval Supply
dc.subject Larvae
dc.subject Recruitment Dynamics
dc.subject Moorea Island
dc.subject Environmental Sciences & Ecology
dc.subject Coral-reef Fishes
dc.subject Density-dependent Mortality Rates
dc.subject Early Postsettlement Mortality
dc.subject Juvenile Mortality
dc.subject Benthic Marine-invertebrates
dc.subject Underwater Visual Census
dc.subject Predation
dc.subject Naso Unicornis
dc.subject Colonization
dc.subject Density-dependence
dc.subject Pelagic Benthic Juveniles
dc.subject French-polynesia
dc.subject Crest Nets
dc.title High mortality during settlement is a population bottleneck for a tropical surgeonfish
dc.type journal article en
dc.identifier.doi 10.1890/04-0366 en
dc.identifier.wos WOS:000224379600009

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Publication


My Account