Improving essential fish habitat designation to support sustainable ecosystem-based fisheries management

A major limitation to fully integrated ecosystem based fishery management approaches is a lack of information on the spatial distribution of marine species and the environmental conditions shaping these distributions. This is particularly problematic for deep-water species that are hard to sample an...

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Main Authors: Moore, Cordelia, Drazen, J., Radford, Ben, Kelley, C., Newman, Stephen
Format: Journal Article
Published: Pergamon 2016
Online Access:http://hdl.handle.net/20.500.11937/41807
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author Moore, Cordelia
Drazen, J.
Radford, Ben
Kelley, C.
Newman, Stephen
author_facet Moore, Cordelia
Drazen, J.
Radford, Ben
Kelley, C.
Newman, Stephen
author_sort Moore, Cordelia
building Curtin Institutional Repository
collection Online Access
description A major limitation to fully integrated ecosystem based fishery management approaches is a lack of information on the spatial distribution of marine species and the environmental conditions shaping these distributions. This is particularly problematic for deep-water species that are hard to sample and are data poor. The past decade has seen the rapid development of a suite of advanced species distribution, or ecological niche, modelling approaches developed specifically to support efficient and targeted management. However, model performance can vary significantly and the appropriateness of which methods are best for a given application remains questionable. Species distribution models were developed for three commercially valuable Hawaiian deep-water eteline snappers: Etelis coruscans (Onaga), Etelis carbunculus (Ehu) and Pristipomoides filamentosus (Opakapaka). Distributional data for these species was relatively sparse. To identify the best method, model performance and distributional accuracy was assessed and compared using three approaches: Generalised Additive Models (GAM), Boosted Regression Trees (BRT) and Maximum Entropy (MaxEnt). Independent spatial validation data found MaxEnt consistently provided better model performance with ‘good’ model predictions (AUC =>0.8). Each species was influenced by a unique combination of environmental conditions, with depth, terrain (slope) and substrate (low lying unconsolidated sediments), being the three most important in shaping their distributions.Sustainable fisheries management, marine spatial planning and environmental decision support systems rely on an understanding species distribution patterns and habitat linkages. This study demonstrates that predictive species distribution modelling approaches can be used to accurately model and map sparse species distribution data across marine landscapes. The approach used herein was found to be an accurate tool to delineate species distributions and associated habitat linkages, account for species-specific differences and support sustainable ecosystem-based management.
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spelling curtin-20.500.11937-418072017-09-13T14:15:06Z Improving essential fish habitat designation to support sustainable ecosystem-based fisheries management Moore, Cordelia Drazen, J. Radford, Ben Kelley, C. Newman, Stephen A major limitation to fully integrated ecosystem based fishery management approaches is a lack of information on the spatial distribution of marine species and the environmental conditions shaping these distributions. This is particularly problematic for deep-water species that are hard to sample and are data poor. The past decade has seen the rapid development of a suite of advanced species distribution, or ecological niche, modelling approaches developed specifically to support efficient and targeted management. However, model performance can vary significantly and the appropriateness of which methods are best for a given application remains questionable. Species distribution models were developed for three commercially valuable Hawaiian deep-water eteline snappers: Etelis coruscans (Onaga), Etelis carbunculus (Ehu) and Pristipomoides filamentosus (Opakapaka). Distributional data for these species was relatively sparse. To identify the best method, model performance and distributional accuracy was assessed and compared using three approaches: Generalised Additive Models (GAM), Boosted Regression Trees (BRT) and Maximum Entropy (MaxEnt). Independent spatial validation data found MaxEnt consistently provided better model performance with ‘good’ model predictions (AUC =>0.8). Each species was influenced by a unique combination of environmental conditions, with depth, terrain (slope) and substrate (low lying unconsolidated sediments), being the three most important in shaping their distributions.Sustainable fisheries management, marine spatial planning and environmental decision support systems rely on an understanding species distribution patterns and habitat linkages. This study demonstrates that predictive species distribution modelling approaches can be used to accurately model and map sparse species distribution data across marine landscapes. The approach used herein was found to be an accurate tool to delineate species distributions and associated habitat linkages, account for species-specific differences and support sustainable ecosystem-based management. 2016 Journal Article http://hdl.handle.net/20.500.11937/41807 10.1016/j.marpol.2016.03.021 Pergamon restricted
spellingShingle Moore, Cordelia
Drazen, J.
Radford, Ben
Kelley, C.
Newman, Stephen
Improving essential fish habitat designation to support sustainable ecosystem-based fisheries management
title Improving essential fish habitat designation to support sustainable ecosystem-based fisheries management
title_full Improving essential fish habitat designation to support sustainable ecosystem-based fisheries management
title_fullStr Improving essential fish habitat designation to support sustainable ecosystem-based fisheries management
title_full_unstemmed Improving essential fish habitat designation to support sustainable ecosystem-based fisheries management
title_short Improving essential fish habitat designation to support sustainable ecosystem-based fisheries management
title_sort improving essential fish habitat designation to support sustainable ecosystem-based fisheries management
url http://hdl.handle.net/20.500.11937/41807