Spatial Ecology of Fish in Toronto Harbour in Response to Aquatic Habitat Enhancement

Veilleux, Maxime

doi:10.22215/etd/2014-10589

Cited by 7 publications

(10 citation statements)

References 106 publications

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“…Acoustic telemetry data, combined with population monitoring, revealed the restored habitat provided a suitable seasonal environment for feeding and growth. Veilleux (2014) used fine-scale acoustic telemetry to compare fish use of two enhanced and two non-enhanced boat slips along the urban waterfront of Toronto, Canada. That work revealed a surprising lack of use of restored habitats, but monitoring was focused solely on adult fish so it was possible that enhanced habitats were being used by other life stages.…”

Section: Habitat Managementmentioning

confidence: 99%

Acoustic telemetry and fisheries management

Crossin

Heupel

Holbrook

et al. 2017

Ecological Applications

258

196

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This paper reviews the use of acoustic telemetry as a tool for addressing issues in fisheries management, and serves as the lead to the special Feature Issue of Ecological Applications titled Acoustic Telemetry and Fisheries Management. Specifically, we provide an overview of the ways in which acoustic telemetry can be used to inform issues central to the ecology, conservation, and management of exploited and/or imperiled fish species. Despite great strides in this area in recent years, there are comparatively few examples where data have been applied directly to influence fisheries management and policy. We review the literature on this issue, identify the strengths and weaknesses of work done to date, and highlight knowledge gaps and difficulties in applying empirical fish telemetry studies to fisheries policy and practice. We then highlight the key areas of management and policy addressed, as well as the challenges that needed to be overcome to do this. We conclude with a set of recommendations about how researchers can, in consultation with stock assessment scientists and managers, formulate testable scientific questions to address and design future studies to generate data that can be used in a meaningful way by fisheries management and conservation practitioners. We also urge the involvement of relevant stakeholders (managers, fishers, conservation societies, etc.) early on in the process (i.e., in the co-creation of research projects), so that all priority questions and issues can be addressed effectively.

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Section: Habitat Managementmentioning

confidence: 99%

Acoustic telemetry and fisheries management

Crossin

Heupel

Holbrook

et al. 2017

Ecological Applications

258

196

View full text Add to dashboard Cite

show abstract

“…A ground baiting experiment at a whole lake scale showed how omnivorous fish respond to angler-induced bait and how this novel energy is embedded in certain trophic levels elevating secondary production [187]. Fine-scale acoustic telemetry has also been used to study restoration success in Toronto, Canada [297] and how exposure to pollutants affects the behaviour of Eurasian perch in the wild [148].…”

Section: Lakes As Venues For Movement Ecology Researchmentioning

confidence: 99%

A role for lakes in revealing the nature of animal movement using high dimensional telemetry systems

et al. 2021

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Movement ecology is increasingly relying on experimental approaches and hypothesis testing to reveal how, when, where, why, and which animals move. Movement of megafauna is inherently interesting but many of the fundamental questions of movement ecology can be efficiently tested in study systems with high degrees of control. Lakes can be seen as microcosms for studying ecological processes and the use of high-resolution positioning systems to triangulate exact coordinates of fish, along with sensors that relay information about depth, temperature, acceleration, predation, and more, can be used to answer some of movement ecology’s most pressing questions. We describe how key questions in animal movement have been approached and how experiments can be designed to gather information about movement processes to answer questions about the physiological, genetic, and environmental drivers of movement using lakes. We submit that whole lake telemetry studies have a key role to play not only in movement ecology but more broadly in biology as key scientific arenas for knowledge advancement. New hardware for tracking aquatic animals and statistical tools for understanding the processes underlying detection data will continue to advance the potential for revealing the paradigms that govern movement and biological phenomena not just within lakes but in other realms spanning lands and oceans.

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“…Similarly, two of the slips -Spadina and Jarvis-had more than one receiver because they were part of a more detailed study of fish use of enhanced habitats (Veilleux 2014).…”

Section: Study Areamentioning

confidence: 99%

“…Peat et al (2016) described the seasonal temperature and depth use for two species of fishes that live in Toronto Harbour, Northern Pike and Largemouth Bass, and documented clear temporal differences in thermal habitat use. Other authors have focused on the success of restoration work within the harbour and the habitat use of local populations of fishes of these restored areas (Veilleux 2014;Rous et al 2016). However, changes in movement patterns and habitat use of fishes in response to rapid temperature changes induced by upwelling events have not been studied and remain untested for species that live in Toronto Harbour and other thermally dynamic freshwater systems.…”

Section: Introductionmentioning

confidence: 99%

Freshwater fishes residing in a coastal embayment are largely buffered from thermal upwelling events.

Cruz-Font,

Hlevca,

Wells

et al. 2023

Preprint

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Upwelling events are common in thermally stratified marine and freshwater systems and can lead to rapid changes in water temperature that presumably impact fishes. Here we examined the effect of rapid changes in water temperature (upwelling events) on the behaviour of two wild fish species from different thermal guilds: Northern Pike (Esox lucius), representing coolwater fishes, and Largemouth Bass (Micropterus nigricans), representing warmwater fishes. This study was conducted in Toronto Harbour, a coastal embayment on the north shore of Lake Ontario, which experiences frequent upwelling events during the summer. Acoustic transmitters implanted in fish were used to calculate detailed depth and temperature occupancy, while detailed water temperature information from logging stations was used to describe the thermal characteristics of the area. Observed changes in internal fish temperature were generally small. During upwelling events, behaviour was variable, but generally involved the occupancy of sheltered habitats and shallow depths, where the cooling effect of the upwelling was minimal. When vertical changes in depth were observed, small vertical movements to shallower depths were more typical for both species. Largemouth Bass were found within the first 2m of depth with small temperature variability, but Northern Pike showed larger variability in depth and temperature occupancy. Our study suggests that the fishes studied here were largely buffered from the effects of upwellings by selecting depths and regions that enable them to experience temperatures consistent with their thermal preferences. However, it is also possible that fish were selecting those thermally stable habitats for other reasons (e.g., food, physical habitat shelter).

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Spatial Ecology of Fish in Toronto Harbour in Response to Aquatic Habitat Enhancement

Cited by 7 publications

References 106 publications

Acoustic telemetry and fisheries management

Acoustic telemetry and fisheries management

A role for lakes in revealing the nature of animal movement using high dimensional telemetry systems

Freshwater fishes residing in a coastal embayment are largely buffered from thermal upwelling events.

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