A5060224592- Fish Ecology and Management Studies
- Marine animal studies overview
- Marine and fisheries research
- Soil and Water Nutrient Dynamics
- Fish biology, ecology, and behavior
- Aquatic Invertebrate Ecology and Behavior
- Smart Materials for Construction
- Heavy metals in environment
- Environmental DNA in Biodiversity Studies
- Mine drainage and remediation techniques
- Underwater Acoustics Research
- Fish Biology and Ecology Studies
- Carbon Dioxide Capture Technologies
- CO2 Sequestration and Geologic Interactions
- Atmospheric and Environmental Gas Dynamics
- Isotope Analysis in Ecology
- Plant responses to elevated CO2
- Groundwater flow and contamination studies
- Marine and environmental studies
- Soil Carbon and Nitrogen Dynamics
- Forest ecology and management
- Integrated Water Resources Management
- Soil and Unsaturated Flow
- Agroforestry and silvopastoral systems
- Ocean Acidification Effects and Responses
Carbon Engineering (Canada)
2023
University of Windsor
2017-2021
Dalhousie University
2012-2021
The Scarborough Hospital
2021
University of Toronto
2021
Fisheries and Oceans Canada
2015
Ocean Tracking Network
2012
Summary The field of acoustic telemetry has evolved rapidly and now permits the remote sensing animal behaviour, movement, physiology survival in environments, species not previously possible. However, an inability to detect when a telemetered is consumed by predator can complicate accurate interpretation data. In this paper, we describe efforts taken test two generations novel prototype transmitter designed specifically predation. Testing involved either staged predation events where tagged...
Telemetry is increasingly being used to estimate population-level survival rates. However, these estimates may be affected by the detectability of telemetry tags and are reliant on assumption that data represent movements tagged fish. Predation fish has potential bias estimates, unlike issue detectability, methods correct for resulting (termed “predation bias”) not yet developed. In an acoustic study inner Bay Fundy Atlantic salmon (Salmo salar) smolts during 2008 2011, unusual tag detection...
Abstract Background Acoustic telemetry is an increasingly common method used to address ecological questions about the movement, behaviour, and survival of freshwater marine organisms. The variable performance acoustic equipment ability receivers detect signals from transmitters have been well studied in coral reef environments inform study design improve data interpretation. Despite growing use large, deep, systems, detection efficiency range, particularly relation environmental variation,...
Abstract Atlantic salmon is often a focal species of restoration efforts throughout the north and it therefore an excellent case study for how best to design programmes address mitigate threats correct population declines. This perspective written promote work that has been accomplished towards populations synthesize we believe lessons can be used effectively support by management agencies restore populations. We reviewed where needed salmon, agreed on definitions three levels successful...
To estimate mortality rates, assess the spatio‐temporal dynamics of natural and examine migratory behaviour during fresh to saltwater transition, 185 wild Atlantic salmon Salmo salar smolts were implanted with coded acoustic transmitters. Seaward migration tagged S. from four river systems in an area Nova Scotia, Canada known as Southern Upland was monitored using fixed receivers active telemetry over 3 years. Cumulative survival through river, inner estuary, outer estuary bay habitats...
Abstract Determining the movement and fate of fishes post‐stocking is challenging due to difficulty in monitoring them, particularly immediately after release. Bloater ( Coregonus hoyi ; Salmonidae ) a deepwater cisco that has been extirpated from Lake Ontario for several decades presently focus binational restoration stocking efforts; however, there limited information evaluate efficacy these efforts. The aim this study was examine initial post‐release survival, 3D movement, behaviour...
Acoustic telemetry is a useful tool to monitor the estuarine survival and behaviour of Atlantic salmon postsmolts. Most frequently, reported as static fraction tagged postsmolts detected, while timing or location mortality may be reported, covariates relationship between migratory are less often described. In this study, we used acoustic follow smolts migrating sea from four rivers in Nova Scotia, Canada. Further, tested mark–recapture models examine role body length tag-to-body mass...
The forage fish communities of the Laurentian Great Lakes continue to experience changes that have altered ecosystem structure, yet little is known about how they partition resources. Seasonal, spatial, and body size variation in δ 13 C 15 N was used assess isotopic niche overlap resource habitat partitioning among five common offshore Lake Ontario species (n = 2037; alewife (Alosa pseudoharengus), rainbow smelt (Osmerus mordax), round goby (Neogobius melanostomus), deepwater (Myoxocephalus...
Abstract Telemetry studies often assume a lack of adverse effects caused by tag attachment and presence in various species size‐classes, which may lead to inaccurate conclusions about fish behavior field studies. Studies that examine the tagging are typically performed on salmonids adult fishes rather than small increasingly becoming focus telemetry The objectives this study were assess intracoelomic acoustic growth, condition, survival, retention subadult hatchery Bloaters Coregonus hoyi (a...
Addition of alkalinity to rivers is a previously unexplored but promising new tool aid our global mission reduce serious risks from climate change while restoring aquatic habitats.
Abstract. Acid deposition released large amounts of aluminium into streams and lakes during the last century in northern Europe eastern North America. Elevated concentrations caused major environmental concern due to aluminium's toxicity terrestrial aquatic organisms led extirpation wild Atlantic salmon populations. Air pollution reduction legislation that began 1990s America successfully reduced acid deposition, problem was widely considered solved. However, accumulating evidence indicates...
Abstract Coastal commercial fisheries targeting Pacific salmon inevitably capture a mix of co-migrating species and genetically distinct populations within each species, only some which are sufficiently abundant to sustain exploitation. Species-specific release measures implemented as conservation measure, but there remains little understanding the resulting mortality. A purse seine fishery for in British Columbia, Canada, was simulated with goal estimating post-release mortality coho...
Abstract Background The successful use of acoustic telemetry to detect fish hinges on understanding the factors that control range. speed-of-sound in water is primarily a function density, and freshwater lakes density driven by temperature. strong seasonal thermal stratification Great Lakes represent some steepest sound speed gradients any aquatic system. Such can refract waves leading greater divergence signal, hence more rapid attenuation. changes attenuation change detection range array...
Bluegill (Lepomis macrochirus) and pumpkinseed gibbosus) sunfish function as a trophic link between invertebrates piscivores in temperate freshwater food webs, but little is known about their movement large-scale riverine ecosystems. To address this, bluegill were implanted with acoustic transmitters monitored for 5 months (June to November 2015) within 0.39 km 2 array the Detroit River. Residence index analysis revealed site fidelity of side river they tagged lack across shipping channel....
Abstract Delays in forest recovery from terrestrial acidification combined with climate change are leading Acadian Forest ecosystems into new territory. The Kejimkujik Calibrated Catchments (KCC) Study Program was established and adjacent to National Park Historic Site (KNP) Southwest Nova Scotia (SWNS), Canada, the late 1970s study impacts of acid precipitation on pristine vulnerable ecosystems. KCC now have one longest continuously monitored water chemistry records North America, data...
Abstract Elevated concentrations of toxic cationic aluminum (Ali) are symptomatic terrestrial and freshwater acidification particularly to salmonid fish species such as Atlantic salmon (Salmo salar). Speciated metal samples rarely included in standard water monitoring protocols, therefore the processes affecting Ali dynamics remain poorly understood. Previous analysis Nova Scotia (Canada) rivers found that majority study had exceeding threshold for aquatic health, but a wide-scale survey has...
Abstract. Cationic aluminium species are toxic to terrestrial and aquatic life. Despite decades of acid emission reductions, accumulating evidence shows that freshwater acidification recovery is delayed in locations such as Nova Scotia, Canada. Further, spatial temporal patterns labile cationic forms (Ali) remain poorly understood. Here we increase our understanding Ali by measuring concentrations ten streams acid-sensitive areas Scotia over a four-year time period. We observe widespread...
Populations of Atlantic salmon (Salmo salar) in Nova Scotia have plummeted recent decades. One the major threats for these populations is freshwater acidification, which has caused toxic water conditions including elevated stream concentrations cationic aluminum (Ali). The only viable management option to reduce acidification within timeline needed save remaining addition alkaline materials waters or soils, via “liming.” While studies Europe, UK, and northeastern USA show that Ali decrease...
Populations of Atlantic salmon (Salmo salar) in Nova Scotia have plummeted recent decades. One the major threats for these populations is freshwater acidification, which has caused toxic water conditions including elevated stream concentrations cationic aluminum (Ali). The only viable management option to reduce acidification within timeline needed save remaining addition alkaline materials waters or soils, via “liming.” While studies Europe, UK, and northeastern USA show that Ali decrease...
Effective carbon dioxide removal (CDR) strategies are urgently needed to reduce risks of climate change. Here we propose a new strategy for Ocean Alkalinity Enhancement that targets the land-to-ocean component inorganic carbon cycle: river-based alkalinity and weathering enhancement (RAWE). RAWE adapts freshwater acidification mitigation technology capture CO2 through mineral by increasing rivers’ capacity retain transport bicarbonate long-term storage in ocean....