Ryan R.E. Stanley

Ryan R.E. Stanley
Fisheries and Oceans Canada | DFO · Bedford Institute of Oceanography

BSc. Hons. MSc. PhD.

About

61
Publications
18,068
Reads
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882
Citations
Additional affiliations
July 2018 - present
Memorial University of Newfoundland
Position
  • Professor (Associate)
January 2017 - June 2019
Fisheries and Oceans Canada
Position
  • Researcher
July 2016 - present
Acadia University
Position
  • Professor (Associate)
Education
September 2009 - August 2015
Memorial University of Newfoundland
Field of study
  • Biology and Oceanography
June 2006 - February 2009
Memorial University of Newfoundland
Field of study
  • Biology and Oceanography
September 2002 - May 2006
St. Francis Xavier University
Field of study
  • Aquatic Resources and Biology

Publications

Publications (61)
Preprint
There has been a proliferation of climate change vulnerability assessments of species, yet possibly due to their limited reproducibility, scalability, and interpretability, their operational use in applied decision-making remains paradoxically low. We use a newly developed Climate Risk Index for Biodiversity to evaluate the climate vulnerability an...
Article
Full-text available
A key component of the global blue economy strategy is the sustainable extraction of marine resources and conservation of marine environments through networks of marine protected areas (MPAs). Connectivity and representativity are essential factors that underlie successful implementation of MPA networks, which can safeguard biological diversity and...
Article
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Climate change and biodiversity loss are twin crises that are driving global marine conservation efforts. However, if unaccounted for, climate change can undermine the efficacy of such efforts. Despite this, integration of climate change adaptation and resilience into spatial marine conservation and management has been limited in Canada and elsewhe...
Article
Exposure to wind-driven waves forms a key physical gradient in coastal areas that influences both ecological communities and human activities in the nearshore. For example, gradients in wave exposure are associated with patterns of diversity, abundance, and distribution of invertebrate communities along rocky shores (Norderhaug et al. 2012, Arribas...
Article
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A high-resolution coastal Finite-Volume Community Ocean Model (FVCOM) has been configured to simulate the water circulation in the Eastern Shore Islands (ESI) archipelago on the coastal Scotian Shelf. Circulation in this area is characterized by complex interactions between the irregular coastline, a dense archipelago, tides, wind, and subtidal cur...
Article
Marine Protected Areas (MPAs) have been adopted globally as a tool to combat biodiversity loss and restore marine ecosystems. Successful application of MPAs will be predicated on the ability to monitor biodiversity in a synoptic and non-invasive manner. Environmental DNA (eDNA) methods have important advantages over traditional biodiversity survey...
Article
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Marine classification schemes based on abiotic surrogates often inform regional marine conservation planning in lieu of detailed biological data. However, these schemes may poorly represent ecologically relevant biological patterns required for effective design and management strategies. We used a community-level modeling approach to characterize a...
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Benthic animals profoundly influence the cycling and storage of carbon and other elements in marine systems, particularly in coastal sediments. Recent climate change has altered the distribution and abundance of many seafloor taxa and modified the vertical exchange of materials between ocean and sediment layers. Here, we examine how climate change...
Article
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A Correction to this paper has been published: https://doi.org/10.1038/s41558-021-01023-8.
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Despite widespread biodiversity losses, an understanding of how most taxa will respond to future climate change is lacking. Here we integrate genomics and environmental modelling to assess climate change responses in an ecologically and economically important Arctic species. Environmentally associated genomic diversity and machine learning are used...
Technical Report
Full-text available
Canada has committed to developing effective and representative marine conservation networks. Guidance for the development of these networks focuses on core design features, including the incorporation of ecologically and biologically significant areas, ecological representation, replication, connectivity, and adequacy/viability. Network planning u...
Technical Report
Full-text available
The Biophysical and Ecological Overview of the Eastern Shore Islands Area of Interest (AOI) summarizes what is known about key physical and biological components of the Eastern Shore Islands ecosystem. These key attributes and description of their ecosystem function can be used to inform the development of Conservation Objectives and management mea...
Technical Report
Full-text available
These proceedings summarize a series of R Learning and Development workshops on the use of interactive tools for science advice hosted by the Fisheries and Ocean Canada (DFO) Science Sector (Maritimes Region) in Fall 2019.These workshops enabled Science staff to share and learn about the application of interactive tools and their role in supporting...
Technical Report
Full-text available
The offshore Arctic Surfclam fishery has traditionally been managed on the basis of bank-wide estimates of biomass and Total Allowable Catch (TAC). These biomass estimates resulted from scientific surveys, the most recent of which were in 2009 (Grand Bank) and 2010 (Banquereau). This bank-wide approach does not necessarily guarantee sustainability...
Technical Report
Full-text available
The Eastern Canyons Area (ECA) was announced in March 2018 as a potential location for a deep-sea closure under Canada’s Fisheries Act. The ECA is located along the edge of the Eastern Scotian Shelf in the Scotian Shelf Bioregion (Maritimes Region, Atlantic Canada), and generally covers the deep waters seaward of the continental shelf. Here, a rati...
Article
Full-text available
The impacts of climate change and the socioecological challenges they present are ubiquitous and increasingly severe. Practical efforts to operationalize climate-responsive design and management in the global network of marine protected areas (MPAs) are required to ensure long-term effectiveness for safeguarding marine biodiversity and ecosystem se...
Article
To develop more reliable marine species distribution models (SDMs), we examine how genetic, climatic, and biotic interaction gradients give rise to prediction error in marine SDM. Genetic lineages with distinct ecological requirements spanning genetic gradients have yet to be treated separately in marine SDM, which are often constrained to modeling...
Technical Report
Full-text available
In the last two decades the use of species distribution modeling (SDM) for the study and management of marine species has increased dramatically. The availability of predictor variables on a global scale and the ease of use of SDM techniques have resulted in a proliferation of research on the topic of species distribution in the deep sea. Translati...
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Domestication is rife with episodes of interbreeding between cultured and wild populations, potentially challenging adaptive variation in the wild. In Atlantic salmon, Salmo salar, the number of domesticated individuals far exceeds wild individuals, and escape events occur regularly, yet evidence of the magnitude and geographic scale of interbreedi...
Article
Hybridization between wild and escaped cultured Atlantic salmon (Salmo salar) can threaten the stability and persistence of locally adapted wild populations. Here we describe the development and validation of a genomic-based approach to quantify recent hybridization between escapee and wild salmon in the western Atlantic. Based on genome-wide singl...
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Two genetically distinct lineages of European green crabs (Carcinus maenas) were independently introduced to eastern North America, the first in the early 19th century and the second in the late 20th century. These lineages first came into secondary contact in southeastern Nova Scotia, Canada (NS), where they hybridized, producing latitudinal genet...
Article
In the northwest Atlantic Ocean, sea scallop (Placopecten magellanicus) has been characterized by a latitudinal genetic cline with a breakpoint between northern and southern genetic clusters occurring at ~45°N along eastern Nova Scotia, Canada. Using 96 diagnostic single-nucleotide polymorphisms (SNPs) capable of discriminating between northern and...
Chapter
Marine managers and conservationists increasingly emphasize the importance of Marine Protected Areas (MPAs) as a key tool for sustaining ocean ecosystems. The designation of MPAs often meets with resistance from stakeholders for reasons that include loss of access, unclear benefits, and misunderstanding of the nature of the intervention. In this ch...
Article
Full-text available
The spatial genetic structure of most species in the open marine environment remains largely unresolved. This information gap creates uncertainty in the sustainable management, recovery, and associated resilience of marine communities and our capacity to extrapolate beyond the few species for which such information exists. We document a previously...
Article
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Genetic-environment associations are increasingly revealed through population genomic data and can occur through a number of processes, including secondary contact, divergent natural selection, or isolation-by-distance. Here we investigate the influence of the environment, including seasonal temperature and salinity, on the population structure of...
Article
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Clinal variation across replicated environmental gradients can reveal evidence of local adaptation, providing insight into the demographic and evolutionary processes that shape intraspecific diversity. Using 1773 genome-wide single nucleotide polymorphisms we evaluated latitudinal variation in allele frequency for 134 populations of North American...
Article
The ability to detect and characterize hybridization in nature has long been of interest to many fields of biology and often has direct implications for wildlife management and conservation. The capacity to identify the presence of hybridization, and quantify the numbers of individuals belonging to different hybrid classes, permits inference on the...
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The Northwest Atlantic cod stocks collapsed in the early 1990s and have yet to recover, despite the subsequent establishment of a continuing fishing moratorium. Efforts to understand the collapse and lack of recovery have so far focused mainly on the dynamics of commercially harvested species. Here, we use data from a 33-year scientific trawl surve...
Article
Predicting dispersal paths of marine larvae with extended pelagic durations, such as American lobster ( Homarus americanus (Milne Edwards, 1837)), requires understanding the cues to which larvae respond, and how that response reflects changes in larval behaviour. If larvae respond to conspecific presence by varying their movement, this behaviour ca...
Article
Invasive species have been associated with significant negative impacts in their introduced range often outcompeting native species, yet the long-term evolutionary dynamics of biological invasions are not well understood. Hybridization, either among waves of invasion or between native and introduced populations, could alter the ecological and evolu...
Article
Full-text available
Genomic studies of invasive species can reveal both invasive pathways and functional differences underpinning patterns of colonization success. The European green crab (Carcinus maenas) was initially introduced to eastern North America nearly 200 years ago where it expanded northwards to eastern Nova Scotia. A subsequent invasion to Nova Scotia fro...
Article
Full-text available
Hybridization among populations and species is a central theme in many areas of biology, and the study of hybridization has direct applicability to testing hypotheses about evolution, speciation, and genetic recombination, as well as having conservation, legal and regulatory implications. Yet, despite being a topic of considerable interest, the ide...
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Understanding patterns of dispersal and connectivity among marine populations can directly inform fisheries conservation and management. Advances in high-throughput sequencing offer new opportunities for estimating marine connectivity. We used Restriction-site Associated DNA sequencing to examine dispersal and realized connectivity in the sea scall...
Article
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Through laboratory observations we evaluated the influence of natal origin, onto - geny, and environment (light, temperature) on the vertical and horizontal swimming behaviour of larval American lobster Homarus americanus. We quantified several behavioural indices including vertical water position, average swim speed, and linearity, and measured ho...
Article
Full-text available
Advances in genetic sequencing technologies and techniques have made large, genome-wide datasets comprised of hundreds or even thousands of individuals and loci the norm rather than the exception even for non-model organisms. While such data presents new opportunities for evaluating population structure and demographic processes, the large size of...
Article
Full-text available
Predicting dispersal paths of marine larvae with long pelagic durations, such as American lobster (Homarus americanus), requires understanding the cues to which larvae respond, and how that response reflects changes in larval behaviour. If larvae respond to conspecific presence by varying their movement, this behaviour can bias laboratory estimates...
Article
Full-text available
Predicting dispersal paths of marine larvae with long pelagic durations, such as American lobster (Homarus americanus), requires understanding the cues to which larvae respond, and how that response reflects changes in larval behaviour. If larvae respond to conspecific presence by varying their movement, this behaviour can bias laboratory estimates...
Article
Full-text available
We examined spatial variation in otolith geochemistry as a natural tag in juvenile Atlantic cod to resolve geographic patterns during early life history. Individuals from 54 inshore sites spanned five embayments in eastern Newfoundland. Otolith composition differed at all spatial scales and related inversely to spatial scale. Classification analysi...
Article
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Article published in The Lobster Newsletter. Brief overview of larval American lobster research from the Canadian Healthy Oceans Network 2009-2013. Work focused on evaluating variability in larval lobster behaviour and incorporating that behaviour into a biophysical simulation of larval lobster behaviour.
Thesis
Connectivity of marine populations, defined as the magnitude of discrete population units interconnected through dispersal, has important implications for the ecology and management of commercially harvested species. Sustainable management requires consideration of the spatial-temporal structure of exploited populations. Connectivity measurement re...
Article
Full-text available
We evaluated the influence of environmental exposure of juvenile Atlantic cod (Gadus morhua) to inform interpretations of natal origins and movement patterns using otolith geochemistry. Laboratory rearing experiments were conducted with a variety of temperature (5, 8.5, and 128C) and salinity (25, 28.5, and 32 PSU) combinations. We measured magnesi...
Article
Full-text available
The success of invasive species is frequently attributed to phenotypic plasticity, which facilitates persistence in novel environments. Here we report on experimental tests to determine whether the intensity of cryptic coloration patterns in a global invader (brown trout, Salmo trutta) was primarily the result of plasticity or heritable variation....
Article
Full-text available
To understand coastal dispersal dynamics of Atlantic cod (Gadus morhua), we examined spatiotemporal egg and larval abundance patterns in coastal Newfoundland. In recent decades, Smith Sound, Trinity Bay has supported the largest known overwintering spawning aggregation of Atlantic cod in the region. We estimated spawning and dispersal characteristi...
Article
Full-text available
During the pelagic larval phase, fish dispersal may be influenced passively by surface currents or actively determined by swimming behaviour. In situ observations of larval swimming are few given the constraints of field sampling. Active behaviour is therefore often inferred from spatial patterns in the field, laboratory studies, or hydrodynamic th...
Thesis
This study addresses the biophysical factors that influence population connectivity during the early life history of Atlantic cod (Gadus morhua) in coastal Newfoundland. In Chapter 1, I review how connectivity is regulated by biophysical processes and should be a central consideration in spatially-oriented management and conservation. The second ch...

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