Petra Szekeres

Petra Szekeres
Environmental Dynamics Inc

Master of Science

About

12
Publications
6,113
Reads
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191
Citations
Introduction
I am fish biologist for Environmental Dynamics Inc, in Yukon, Canada. I completed my M.Sc. in the Fish Ecology and Conservation Physiology Lab at Carleton University, under the supervision of Dr. Steven Cooke. My project focus was primarily on the behaviour and physiology of juvenile bonefish (Albula vulpes). I also completed work on nearshore and deep-sea Caribbean invertebrates (sea cucumbers, bathynomous giganteus, etc.), St. Lawrence juvenile muskellunge, and blue-finned mahseer in India.
Additional affiliations
December 2014 - January 2015
Carleton University
Position
  • Research Assistant
Description
  • -Helped supervise a group of 17 university-level students during a SCUBA coral and reef fish identification course -Assisted students in determining the distribution and community organization of readily observable species assemblages
November 2014 - December 2014
Carleton University
Position
  • Field Technician
Description
  • -Helped develop a wireless electrocardiogram (ECG) system for seawater fishes -Assessed cardiac thermal tolerance in several mangrove and reef fish species -Assisted with a temperature preference study on checkered pufferfish
June 2013 - November 2014
University of British Columbia - Vancouver
Position
  • Field Technician
Description
  • -Studied several species of Pacific salmon and white sturgeon -Blood analysis, tissue sampling for RNA and histology -Radio and acoustic tagging, and accelerometer application; manual field telemetry
Education
September 2009 - April 2013
Carleton University
Field of study
  • Environmental Science

Publications

Publications (12)
Article
Full-text available
Over the past decade nearly all of the research on the effects of climate change on fish has focused on the effects of warmer water temperatures. Yet, it is expected that temperature variability will also increase, resulting in more frequent incidences of rapid decreases in water temperatures (i.e. cold shock). Cold shock events have caused large-s...
Article
The Sustainable Development Goals (SDGs; promulgated in 2015), officially known as “Transforming our world: the 2030 Agenda for Sustainable Development”, are an intergovernmental set of 17 goals and 169 constituent targets that succeed the Millennium Development Goals (MDGs; 2000–2015). Despite a clear mandate to integrate social, economic and envi...
Article
Grouping behavior occurs across a wide variety of taxa, both within and between species. While members are thought to obtain foraging and antipredator advantages, they can also experience costs in the forms of competition or increased conspicuity to predators. The mechanisms behind these costs and benefits can vary depending on group composition, u...
Article
Full-text available
Bycatch is a common occurrence in heavily fished areas such as the Fraser River, British Columbia, where fisheries target returning adult Pacific salmon (Oncorhynchus spp.) en route to spawning grounds. The extent to which these encounters reduce fish survival through injury and physiological impairment depends on multiple factors including capture...
Article
As catch-and-release becomes more popular and angling pressure increases, it is likely that fish in popular fisheries will experience catch-and-release events on more than one occasion (i.e., “multiple captures”). Anecdotal reports from anglers suggest that blue-finned mahseer (Tor khudree) in WASI Lake, Karnataka, India, commonly experience multip...
Article
Full-text available
Understanding the spatial ecology of juvenile freshwater fish beyond summer months is an essential component of their life history puzzle. To this end, declines in the natural populations of sympatric Muskellunge (Esox masquinongy) and Northern Pike (Esox lucius) in the upper St. Lawrence River prompted study of spatiotemporal patterns and habitat...
Article
Full-text available
Natural resource agencies have developed catch‐and‐release regulations for Walleyes Sander vitreus of prohibited size and number to reduce mortality in many recreational fisheries. The efficacy of such regulations is contingent upon the released fish surviving, but survival data on Walleyes captured by ice‐angling are lacking. We estimated the surv...
Article
Full-text available
Light pollution is a prevalent, but often overlooked, ecological concern in a variety of ecosystems. Marine environments are subjected to artifcial lighting from coastal development, in addition to ofshore sources, such as fshing vessels, oil platforms and cruise ships. Fish species that rely on nearshore habitats are most signifcantly impacted by...
Technical Report
Full-text available
Executive Summary Ice-fishing for Walleye is a popular recreational activity on Lake Nipissing, Ontario. To increase escapement of Walleye in the fishery, the Ontario Ministry of Natural Resources and Forestry has mandated catch-and-release (CnR) regulations for Walleye of prohibited size (i.e. slot limit) or number (i.e. quota or bag limit). Since...
Article
Full-text available
Individuals cope differently to challenging and stressful situations. Being inverted is challenging and stressful for animals, as the position leaves them vulnerable to predators and desiccation. Although sea star self-righting was first studied in the 19th century, efforts to quantify patterns of within-individual consistency and among-individual...

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