Cargando…
Multi Year Observations Reveal Variability in Residence of a Tropical Demersal Fish, Lethrinus nebulosus: Implications for Spatial Management
Off the Ningaloo coast of North West Western Australia, Spangled Emperor Lethrinus nebulosus are among the most highly targeted recreational fish species. The Ningaloo Reef Marine Park comprises an area of 4,566 km(2) of which 34% is protected from fishing by 18 no-take sanctuary zones ranging in si...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2014
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4152176/ https://www.ncbi.nlm.nih.gov/pubmed/25181537 http://dx.doi.org/10.1371/journal.pone.0105507 |
_version_ | 1782333091976577024 |
---|---|
author | Pillans, Richard D. Bearham, Douglas Boomer, Andrew Downie, Ryan Patterson, Toby A. Thomson, Damian P. Babcock, Russel C. |
author_facet | Pillans, Richard D. Bearham, Douglas Boomer, Andrew Downie, Ryan Patterson, Toby A. Thomson, Damian P. Babcock, Russel C. |
author_sort | Pillans, Richard D. |
collection | PubMed |
description | Off the Ningaloo coast of North West Western Australia, Spangled Emperor Lethrinus nebulosus are among the most highly targeted recreational fish species. The Ningaloo Reef Marine Park comprises an area of 4,566 km(2) of which 34% is protected from fishing by 18 no-take sanctuary zones ranging in size from 0.08–44.8 km(2). To better understand Spangled Emperor movements and the adequacy of sanctuary zones within the Ningaloo Reef Marine Park for this species, 84 Spangled Emperor of a broad spectrum of maturity and sex were tagged using internal acoustic tags in a range of lagoon and reef slope habitats both inside and adjacent to the Mangrove Bay Sanctuary zone. Kernel Utilisation Distribution (KUD) was calculated for 39 resident individuals that were detected for more than 30 days. There was no relationship with fish size and movement or site fidelity. Average home range (95% KUD) for residents was 8.5±0.5 km(2) compared to average sanctuary zone size of 30 km(2). Calculated home range was stable over time resulting in resident animals tagged inside the sanctuary zone spending ∼80% of time within the sanctuary boundaries. The number of fish remaining within the array of receivers declined steadily over time and after one year more than 60% of tagged fish had moved outside the sanctuary zone and also beyond the 28 km(2) array of receivers. Long term monitoring identified the importance of shifting home range and was essential for understanding overall residency within protected areas and also for identifying spawning related movements. This study indicates that despite exhibiting stable and small home ranges over periods of one to two years, more than half the population of spangled emperor move at scales greater than average sanctuary size within the Ningaloo Reef Marine Park. |
format | Online Article Text |
id | pubmed-4152176 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-41521762014-09-05 Multi Year Observations Reveal Variability in Residence of a Tropical Demersal Fish, Lethrinus nebulosus: Implications for Spatial Management Pillans, Richard D. Bearham, Douglas Boomer, Andrew Downie, Ryan Patterson, Toby A. Thomson, Damian P. Babcock, Russel C. PLoS One Research Article Off the Ningaloo coast of North West Western Australia, Spangled Emperor Lethrinus nebulosus are among the most highly targeted recreational fish species. The Ningaloo Reef Marine Park comprises an area of 4,566 km(2) of which 34% is protected from fishing by 18 no-take sanctuary zones ranging in size from 0.08–44.8 km(2). To better understand Spangled Emperor movements and the adequacy of sanctuary zones within the Ningaloo Reef Marine Park for this species, 84 Spangled Emperor of a broad spectrum of maturity and sex were tagged using internal acoustic tags in a range of lagoon and reef slope habitats both inside and adjacent to the Mangrove Bay Sanctuary zone. Kernel Utilisation Distribution (KUD) was calculated for 39 resident individuals that were detected for more than 30 days. There was no relationship with fish size and movement or site fidelity. Average home range (95% KUD) for residents was 8.5±0.5 km(2) compared to average sanctuary zone size of 30 km(2). Calculated home range was stable over time resulting in resident animals tagged inside the sanctuary zone spending ∼80% of time within the sanctuary boundaries. The number of fish remaining within the array of receivers declined steadily over time and after one year more than 60% of tagged fish had moved outside the sanctuary zone and also beyond the 28 km(2) array of receivers. Long term monitoring identified the importance of shifting home range and was essential for understanding overall residency within protected areas and also for identifying spawning related movements. This study indicates that despite exhibiting stable and small home ranges over periods of one to two years, more than half the population of spangled emperor move at scales greater than average sanctuary size within the Ningaloo Reef Marine Park. Public Library of Science 2014-09-02 /pmc/articles/PMC4152176/ /pubmed/25181537 http://dx.doi.org/10.1371/journal.pone.0105507 Text en © 2014 Pillans et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Pillans, Richard D. Bearham, Douglas Boomer, Andrew Downie, Ryan Patterson, Toby A. Thomson, Damian P. Babcock, Russel C. Multi Year Observations Reveal Variability in Residence of a Tropical Demersal Fish, Lethrinus nebulosus: Implications for Spatial Management |
title | Multi Year Observations Reveal Variability in Residence of a Tropical Demersal Fish, Lethrinus nebulosus: Implications for Spatial Management |
title_full | Multi Year Observations Reveal Variability in Residence of a Tropical Demersal Fish, Lethrinus nebulosus: Implications for Spatial Management |
title_fullStr | Multi Year Observations Reveal Variability in Residence of a Tropical Demersal Fish, Lethrinus nebulosus: Implications for Spatial Management |
title_full_unstemmed | Multi Year Observations Reveal Variability in Residence of a Tropical Demersal Fish, Lethrinus nebulosus: Implications for Spatial Management |
title_short | Multi Year Observations Reveal Variability in Residence of a Tropical Demersal Fish, Lethrinus nebulosus: Implications for Spatial Management |
title_sort | multi year observations reveal variability in residence of a tropical demersal fish, lethrinus nebulosus: implications for spatial management |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4152176/ https://www.ncbi.nlm.nih.gov/pubmed/25181537 http://dx.doi.org/10.1371/journal.pone.0105507 |
work_keys_str_mv | AT pillansrichardd multiyearobservationsrevealvariabilityinresidenceofatropicaldemersalfishlethrinusnebulosusimplicationsforspatialmanagement AT bearhamdouglas multiyearobservationsrevealvariabilityinresidenceofatropicaldemersalfishlethrinusnebulosusimplicationsforspatialmanagement AT boomerandrew multiyearobservationsrevealvariabilityinresidenceofatropicaldemersalfishlethrinusnebulosusimplicationsforspatialmanagement AT downieryan multiyearobservationsrevealvariabilityinresidenceofatropicaldemersalfishlethrinusnebulosusimplicationsforspatialmanagement AT pattersontobya multiyearobservationsrevealvariabilityinresidenceofatropicaldemersalfishlethrinusnebulosusimplicationsforspatialmanagement AT thomsondamianp multiyearobservationsrevealvariabilityinresidenceofatropicaldemersalfishlethrinusnebulosusimplicationsforspatialmanagement AT babcockrusselc multiyearobservationsrevealvariabilityinresidenceofatropicaldemersalfishlethrinusnebulosusimplicationsforspatialmanagement |