David A Feary

David A Feary
MRAG Ltd

B.Sc., M.Sc., Ph.D.

About

123
Publications
64,854
Reads
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5,356
Citations
Additional affiliations
January 2020 - present
MRAG Ltd
Position
  • Managing Director
February 2019 - December 2019
MRAG Ltd
Position
  • Consultant
September 2018 - February 2019
MRAG Ltd
Position
  • Consultant

Publications

Publications (123)
Article
Full-text available
Complex networks of relationships among and between people and nature (social‐ecological networks) play an important role in sustainability; yet, we have limited empirical understanding of their temporal dynamics. We empirically examine the evolution of a social‐ecological network in a common‐pool resource system faced with escalating social and en...
Article
Full-text available
Quantifying the level of population connectivity within and between geographically separated single-species deep-water fisheries stocks will be vital for designing effective management plans to preserve such populations. Despite this, stock structure in many fisheries is still poorly described and, at best, subject to precautionary management. Here...
Article
Full-text available
Determining the life-history consequences for fishes living in extreme and variable environments will be vital in predicting the likely impacts of ongoing climate change on reef fish demography. Here, we compare size-at-age and maximum body size of two common reef fish species (Lutjanus ehrenbergii and Pomacanthus maculo-sus) between the environmen...
Article
Full-text available
Mapping and predicting the potential risk of fishing activities to large marine protected areas (MPAs), where management capacity is low, but fish biomass may be globally important, is vital to prioritize enforcement and maximize conservation benefits. Using Lagrangian particle modelling we determine the potential transit of drifting fish aggregati...
Technical Report
Full-text available
In support of the recent Single Use Plastics (SUP) Directive, and in line with the recent EU shift in strategy towards a circular plastics economy, an MRAG Europe led consortium has comprehensively examined the challenges, best practices and solutions to the circular design of fishing gear. The main outcome of the work has been to provide the backg...
Preprint
Full-text available
Determining the life history consequences for fishes living in extreme and variable environments will be vital in predicting the likely impacts of ongoing climate change on reef fish demography. Here, we compare size-at-age and maximum body size of two common reef fish species ( Lutjanus ehrenbergii and Pomacanthus maculosus ) between the environme...
Article
Full-text available
Despite increasing environmental variability within marine ecosystems, little is known about how coral reef fish species will cope with future climate scenarios. The Arabian/Persian Gulf is an extreme environment, providing an opportunity to study fish behaviour on reefs with seasonal temperature ranges which include both values above the mortality...
Article
The worldwide decline of coral reefs necessitates targeting management solutions that can sustain reefs and the livelihoods of the people who depend on them. However, little is known about the context in which different reef management tools can help to achieve multiple social and ecological goals. Because of nonlinearities in the likelihood of ach...
Article
Full-text available
The detrimental effects of invasion by Indo-Pacific lionfish Pterois volitans/miles on western Atlantic fishes have spurred concerns for Mediterranean fish biodiversity, where Lessepsian lionfish P. miles have recently established populations in the eastern basin. In order to assess the potential impact on biodiversity, we examined key behavioural...
Preprint
Full-text available
The detrimental effects of invasion by Indo-Pacific lionfish (Pterois volitans/miles) on western Atlantic fishes have spurred concerns for Mediterranean fish biodiversity, where a Lessepsian invasion of lionfish has recently begun. In order to assess the potential impact on biodiversity, we examine key behavioural and ecological traits of lionfish,...
Article
Full-text available
Efforts to confront the challenges of environmental change and uncertainty include attempts to adaptively manage social-ecological systems. However, critical questions remain about whether adap-tive management can lead to sustainable outcomes for both ecosystems and society. Here, we make a contribution to these efforts by presenting a 16-y analysi...
Article
Existing marine bioregions covering the Pacific Ocean are conceptualised at spatial scales that are too broad for national marine spatial planning. Here, we developed the first combined oceanic and coastal marine bioregionalisation at national scales, delineating 262 deep-water and 103 reef-associated bioregions across the southwest Pacific. The de...
Technical Report
Full-text available
Within this project we provide both general recommendations and (where possible) country specific recommendations for increasing the veracity, validity and effectiveness of data collection for artisanal fisheries within Australia, Bangladesh, Comoros, Eritrea, European Union/ France (OT), India, Indonesia, IR Iran, Kenya, Madagascar, Malaysia, Mald...
Article
Full-text available
Ocean warming associated with global climate change is already inducing geographic range shifts of marine species. Juvenile coral reef fishes transported into temperate latitudes (termed ‘vagrant’ fishes) can experience winter water temperatures below their normal thermal minimum. Such environmental extremes may increase energetic costs for such fi...
Article
Full-text available
Ocean circulation, geological history, geographic distance, and seascape heterogeneity play an important role in phylogeography of coral‐dependent fishes. Here, we investigate potential genetic population structure within the yellowbar angelfish (Pomacanthus maculosus) across the Northwestern Indian Ocean (NIO). We then discuss our results with res...
Article
Full-text available
Without drastic efforts to reduce carbon emissions and mitigate globalized stressors, tropical coral reefs are in jeopardy. Strategic conservation and management requires identification of the environmental and socioeconomic factors driving the persistence of scleractinian coral assemblages—the foundation species of coral reef ecosystems. Here, we...
Preprint
Full-text available
Despite increasing environmental variability within marine ecosystems, little is known about how coral reef fish species will cope with future climate scenarios. The Arabian/Persian Gulf is an extreme environment, providing an opportunity to study fish behaviour on reefs with seasonal temperature ranges which include both values above the mortality...
Chapter
A chapter on parrotfishes in marginal reef ecosystems around the world. This chapter is part of 'Biology of Parrotfishes' edited by Hoey and Bonaldo and published by CRC Press (2018), chapter 12. Cite as: Hoey A, Berumen M, Bonaldo R, Burt J, Feary D, Ferriera C, Floeter S, Nakamura Y (2018) The ecology of parrotfishes in marginal reef systems. In:...
Article
Full-text available
Determining whether many functionally complementary species or only a subset of key species are necessary to maintain ecosystem functioning and services is a critical question in community ecology and biodiversity conservation. Identifying such key species remains challenging, especially in the tropics where many species co-occur and can potentiall...
Article
Full-text available
Coral reefs provide ecosystem goods and services for millions of people in the tropics, but reef conditions are declining worldwide. Effective solutions to the crisis facing coral reefs depend in part on understanding the context under which different types of conservation benefits can be maximized. Our global analysis of nearly 1,800 tropical reef...
Article
Full-text available
Round goby (Neogobius melanostomus) and western tubenose goby (Proterorhinus semilunaris) invaded the Laurentian Great Lakes at approximately the same time and area yet have shown substantial differences in their post-invasion success with more rapid establishment and development of much larger abundances of round goby populations throughout the in...
Article
Full-text available
Herbivorous fishes comprise a substantial proportion of temperate fish communities, although there is little understanding of their trophic resource use and whether this changes throughout post-settlement ontogeny. With increasing loss of macroalgal forests, understanding how temperate fishes use macroalgae will be vital in predicting future effect...
Article
Full-text available
The removal of macroalgal biomass is critical to the health of coral reef ecosystems. Previous studies on relatively intact reefs with diverse and abundant fish communities have quantified rapid removal of macroalgae by herbivorous fishes, yet how these findings relate to degraded reef systems where fish diversity and abundance are markedly lower a...
Article
Full-text available
Winnowing of poorly-adapted species from local communities causes shifts/declines in species richness, making ecosystems increasingly ecologically depauperate. Low diversity can be associated with marginality of environments, which is increasing as climate change impacts ecosystems globally. This paper demonstrates the demographic mechanisms (size-...
Article
Full-text available
Larval supply is a principal factor determining the establishment, structure, and diversity of sessile benthic assemblages on coral reefs. Benthic reef communities in north-eastern Arabia have been subject to recurrent disturbances in recent years, and subsequent recovery will be, in part, driven by variation in the supply of available colonists. U...
Chapter
Full-text available
The effects of climate change on marine fish and fisheries are occurring perhaps most strongly in tropical coastal habitats. This chapter shows that climate change could profoundly impact the life histories of tropical marine fish species, by altering dispersal patterns, or possibly shifting ranges away or into a country's territorial waters. All l...
Article
Full-text available
Warming waters and changing ocean currents are increasing the supply of tropical fish larvae to temperature regions where they are exposed to novel habitats, namely temperate macroalgae and barren reefs. Here, we use underwater surveys on the temperate reefs of south-eastern (SE) Australia and western Japan (~33.5°N and S, respectively) to investig...
Article
Full-text available
Coral cover on reefs is declining globally due to coastal development, overfishing and climate change. Reefs isolated from direct human influence can recover from natural acute disturbances, but little is known about long term recovery of reefs experiencing chronic human disturbances. Here we investigate responses to acute bleaching disturbances on...
Article
Full-text available
Age, growth, and monthly reproductive characteristics were determined for the orange-spotted grouper (Epinephelus coioides) from northern Oman. This species is characterized by a prevalence of females (1-11 years old), and males make up 6.5% of the total sample. Growth parameters indicate a typical pattern for groupers with a low growth coefficient...
Article
Full-text available
Ongoing declines in the structure and function of the world's coral reefs require novel approaches to sustain these ecosystems and the millions of people who depend on them. A presently unexplored approach that draws on theory and practice in human health and rural development is to systematically identify and learn from the 'outliers'-places where...
Poster
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In the Persian/Arabian Gulf, there has been extensive coral habitat degradation and loss because of coastal development and climate change. Fishes dependent on this habitat for survival are of particular concern for conservation. Coral-dependent fishes in the Persian/Arabian Gulf were identified using primary literature and expert opinion. Of the m...
Article
Full-text available
In the Gulf, multiple human impacts and recurrent bleaching events have resulted in serious declines of coral assemblages , particularly in near-shore areas. However, the degree to which the extinction risk of coral-dependent fishes is impacted by these coral declines has been uncertain. Using primary literature and expert knowledge, coral-dependen...
Article
Full-text available
Herbivores play a critical role in structuring benthic communities on tropical coral dominated reefs by removing macroalgae. Reducing herbivory has been implicated in promoting phase shifts from coral dominance to other ecosystem states following disturbances. Turbidity and sedimentation are key physical processes that also structure coral reef com...
Article
Full-text available
Herbivores play a critical role in structuring benthic communities on tropical coral dominated reefs by removing macroalgae. Reducing herbivory has been implicated in promoting phase shifts from coral dominance to other ecosystem states following disturbances. Turbidity and sedimentation are key physical processes that also structure coral reef com...
Preprint
Full-text available
Background .Herbivores play a critical role in structuring benthic communities on tropical coral dominated reefs because they remove macro and microalgae, which might otherwise overgrow adult corals or prevent successful recruitment of juveniles. Reducing herbivory has been implicated in promoting phase shifts from coral dominance to other ecosyste...
Article
Full-text available
Poleward redistribution of species, facilitated by global warming, will be compromised if habitats at higher latitudes do not support the species' early life stages. For tropical reef fishes, reef structure may mediate colonisation of temperate regions; however, an understanding of key habitat requirements for colonisation is currently lacking. We...
Article
Full-text available
Range expansions of species due to climate change threaten the function and composition of marine ecosystems globally, yet factors constraining or facilitating this redistribution are poorly understood. Native predators may constrain prey shifting poleward through consumption, or by restricting their feeding activity. However, the extent that nativ...
Technical Report
Full-text available
Despite the importance of the sea cucumber trade in terms of foreign revenue generation for Papua New Guinea and cash income for local fishers, stock collapse nationally led to a nationwide closure coming into force from 2009. There is now increasing interest in examining the role of locally based management strategies in sustaining sea cucumber po...
Article
Full-text available
A widely documented impact of ocean warming is the poleward shift in species’ distributions. This includes the global movement of tropical fishes into temperate rocky reefs. The ecological impacts of such range extensions are, however, largely unknown. We compared the feeding habits of herbivorous tropical surgeonfishes (Acanthuridae) to that of wa...
Technical Report
Full-text available
Article
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The eight countries surrounding the Persian Gulf – Bahrain, Kuwait, Iran, Iraq, Oman, Qatar, Saudi Arabia and the United Arab Emirates – share a valuable ecosystem that, like many other places in the world, is being seriously degraded by a human impacts. Since the oil boom of the 1970s there has been massive economic and population growth throughou...