A5000703550- Fish Ecology and Management Studies
- Marine and fisheries research
- Aquatic Invertebrate Ecology and Behavior
- Hydrology and Sediment Transport Processes
- Species Distribution and Climate Change
- Wildlife Ecology and Conservation
- Fish Biology and Ecology Studies
- Isotope Analysis in Ecology
- Land Use and Ecosystem Services
- Hydrology and Watershed Management Studies
- Ecology and Vegetation Dynamics Studies
- Marine Bivalve and Aquaculture Studies
- Plant and animal studies
- Genetic diversity and population structure
- Ecology and biodiversity studies
- Animal Ecology and Behavior Studies
- Evolution and Paleontology Studies
- Physiological and biochemical adaptations
- Freshwater macroinvertebrate diversity and ecology
- Coral and Marine Ecosystems Studies
- Insect-Plant Interactions and Control
- Insect Resistance and Genetics
- Fish biology, ecology, and behavior
- Sustainability and Climate Change Governance
- Data Analysis with R
Fisheries and Oceans Canada
2004-2024
University of Toronto
2005-2024
Ministry of Natural Resources and Forestry
2016-2023
Ministry of Energy, Northern Development and Mines
2021
Trent University
2008-2020
Ecological Society of America
2020
Hudson Institute
2018
John Wiley & Sons (United States)
2018
Nature Conservancy of Canada
2010-2014
Abstract Climate is a critical driver of many fish populations, assemblages, and aquatic communities. However, direct observational studies climate change impacts on North American inland fishes are rare. In this synthesis, we (1) summarize trends that may influence populations (2) compile 31 peer-reviewed documented effects (3) highlight four case representing variety observed responses ranging from warmwater systems in the southwestern southeastern United States to coldwater along Pacific...
ABSTRACT Climate change will ultimately affect the supply and quality of freshwater lakes rivers throughout world. This study examines potential impacts climate on fish distributions in Canada. normals data (means from 1961 to 1990) Environment Canada were used map current found tertiary watersheds Logistic regressions based these develop predictive presence‐absence equations for (a) common commercially recreationally important species (b) an Arctic a conservation significance listed by...
Abstract Individual transferable quota (ITQ) programmes have been incorporated into many marine fisheries management strategies for 30 years, but their implementation and utility remains controversial. This study provides an overview of the global status ITQ programmes, reasons they adopted changes in stock biomass after implementation. Eighteen countries currently use ITQs to manage several hundred stocks at least 249 species. were these reasons: overcapitalization, economic gains, safety...
FisheriesVolume 41, Issue 7 p. 385-391 Perspective: Canadian Aquatic Resource Section Climate Change Impacts on Freshwater Fishes: A Perspective Mark S. Poesch, Poesch poesch@ualberta.ca Department of Renewable Resources, University Alberta, 751 General Services Building, Edmonton, AB, Canada, T6G 2H1Search for more papers by this authorLouise Chavarie, Louise Chavarie Center Systems Integration and Sustainability, Michigan State University, East Lansing, MISearch authorCindy Chu, Cindy Chu...
The complexity of climate change impacts on ecological processes necessitates flexible and adaptive conservation strategies that cross traditional disciplines. Current involving protected areas are predominantly fixed in space, may their own be inadequate under change. Here, we propose a novel approach to adaptation combines permanent with temporary create networks. Previous work has tended consider dynamic protection as separate actions, but integration could draw the strengths both...
The availability of suitable thermal habitat for fishes in streams is influenced by several factors, including flow, channel morphology, riparian vegetation, and land use. This study examined the influence air temperature groundwater discharge, predictors stream temperature, on diversity (cold-, cool-, warm-water preferences) fish communities southern Ontario watersheds. Site-level sampling data were used to assess 43 quaternary watersheds using three metrics, proportion sites within a...
Changes in resource development and expansions of urban centres suggest that the intensity types anthropogenic stressors affecting Canada’s watersheds are changing. Chu et al. (2003) integrated indices freshwater fish biodiversity, environmental conditions, stress to identify priority for conservation management. Here, we update those using recent climate census data assess changes through time. We also applied different management scenarios evaluate robustness our prioritization approach....
Abstract Climate change is a global persistent threat to fish and habitats throughout North America. Climate-induced modification of environmental regimes, including changes in streamflow, water temperature, salinity, storm surges, habitat connectivity can physiology, disrupt spawning cues, cause extinctions invasions, alter community structure. Reducing greenhouse emissions remains the primary mechanism slow pace climate change, but local regional management agencies stakeholders have...
The integration of ecosystem processes over large spatial extents is critical to predicting whether and how local global changes may impact biodiversity functions. Yet, there remains an important gap in meta‐ecosystem models predict multiple functions (e.g. carbon sequestration, elemental cycling, trophic efficiency) across types terrestrial‐aquatic, benthic‐pelagic). We derive a flexible model at landscape by integrating the dimension natural systems as networks different habitat connected...
Abstract Freshwater protected areas are rare even though freshwater ecosystems among the most imperiled in world. Conservation actions within terrestrial (TPAs) such as development or resource extraction regulations may spill over to benefit their boundaries. Using data from 175 lakes across Ontario, Canada, we compared common indicators of fish‐assemblage status (i.e., species richness, Shannon diversity index, catch per unit effort, and normalized‐length size spectrum slopes) evaluate...
The expanding human global footprint and growing demand for freshwater have placed tremendous stress on inland aquatic ecosystems. Aichi Target 10 of the Convention Biological Diversity aims to minimize anthropogenic pressures affecting vulnerable ecosystems, pressure interactions are increasingly being incorporated into environmental management climate change adaptation strategies. In this study, we explore how change, overfishing, forest disturbance, invasive species interact affect lake...
Abstract Inland fishes provide important ecosystem services to communities worldwide and are especially vulnerable the impacts of climate change. Fish respond change in diverse nuanced ways, which creates challenges for practitioners fish conservation, adaptation, management. Although is known affect globally, a comprehensive online, public database how has impacted inland adaptation or management practices that may address these does not exist. We conducted an extensive, systematic primary...
A major strength of the guild approach is its ability to simplify community analysis by aggregating species with similar roles or functions into groups. These groups can be used study a number important ecological concepts, including functional diversity, response disturbance, and food-web dynamics. Despite increased use, membership based on subjective criteria that are arbitrarily chosen, leading inconsistencies across studies. Additionally, studies using generally ignore ontogenetic...
This study presents a broad analysis of freshwater fish species biodiversity in relation to environmental and stress metrics throughout Canada. Species presenceabsence data were used calculate richness rarity indices by tertiary watershed. Richness is higher the southern parts Canada, whereas concentrated "ring rarity" around periphery country. Environmental developed for each watershed using readily available mapped information. The index was estimated growing degree-days above 5°C,...
Abstract The lack of geographically broad‐scale temperature data has limited our ability to classify stream temperatures and assess the processes affecting them. Continuous (1 July 2005–30 June 2006) from 90 sites throughout Great Lakes Basin (GLB) were used model thermal regimes streams in Ontario. Existing newly developed metrics characterize for each site. clustered into three based on maximum weekly (°C) spring rate change (°C · d −1 ). centroids regime 1, 2 3 had 26.4, 28.4, 23.5°C...
Across broad geographic scales, ecological indicators for fish assemblages should represent causal processes, be sensitive enough to show patterns across the landscape, and reflect underlying biotic or abiotic conditions that influence those patterns. We assessed responses of commonly applied lake (mean body size, catch-per-unit-effort (CPUE), normalized length size spectrum (NLSS) slope) regional (climate, water chemistry, watershed stress due human activities) local (lake morphometry,...
Abstract Aim A full understanding of the origin and maintenance β‐diversity patterns in a region requires of: (1) relationships both taxonomic phylogenetic (TBD PBD, respectively) their respective turnover nestedness components with geographical environmental distances; (2) relative importance β‐diversity; (3) between PBD measures representing different evolutionary depths. Here, we investigate all these aspects simultaneously for freshwater fishes North America. Location America north...
Abstract Recent environmental changes in the Bay of Quinte, Lake Ontario, have coincided with a decline stocks walleye Sander vitreus . Suitable habitat supply was estimated three sections bay during summers 1972–2001 to assess its role decline. An empirical model developed predict suitable area for walleyes based on their preferences cool water and low light intensity. The results indicated that lack limits bay. Walleye shallow upper has decreased at rate 34 ha/year since invasion...
The tropical niche conservatism hypothesis suggests that most groups should be phylogenetically clustered in cold, dry environments. This idea has been well‐tested plants and some animal groups, but not for fishes. We assess the geographic patterns of freshwater fish phylogenetic structure investigate relationships between these environmental variables across North America within two biogeographic realms. Phylogenetic relatedness diversity 360 assemblages were quantified with three metrics...
Abstract There are ~250,000 lakes in Ontario that support important cultural, recreational, and economic fisheries. In 2005, the Ministry of Natural Resources Forestry adopted Ecological Framework for Recreational Fisheries Management to tackle heterogeneity lake resources angler mobility across landscape, increase public participation fisheries management, streamline an ever-growing list regulations. The Broad-Scale Monitoring Program Inland Lakes began 2008 meet these goals. Essential...
Abstract This study assessed the applicability of an existing methodology to classify different stream sites into coldwater, coolwater, or warmwater areas based on their maximum air and water temperatures in summer. Using this methodology, single measurements daily (≥24.5°C) at 1600 hours between July 1 September 7 can be plotted a nomogram approximate thermal classification site. Data from 122 throughout Great Lakes basin, Ontario, indicated that should revised include sampling days August...