A5019677255- Ichthyology and Marine Biology
- Marine and fisheries research
- Marine animal studies overview
- Fish Ecology and Management Studies
- Isotope Analysis in Ecology
- Arctic and Antarctic ice dynamics
- Fish Biology and Ecology Studies
- Identification and Quantification in Food
- Coral and Marine Ecosystems Studies
- Mercury impact and mitigation studies
- Wildlife Ecology and Conservation
- Marine Ecology and Invasive Species
- Environmental DNA in Biodiversity Studies
- Underwater Acoustics Research
- Animal Vocal Communication and Behavior
- Marine Bivalve and Aquaculture Studies
- Species Distribution and Climate Change
- Turtle Biology and Conservation
- Cephalopods and Marine Biology
- Avian ecology and behavior
- Physics of Superconductivity and Magnetism
- Arctic and Russian Policy Studies
- Physiological and biochemical adaptations
- Fish biology, ecology, and behavior
- Indigenous Studies and Ecology
University of Windsor
2016-2025
University of Bristol
2024
Radboud University Nijmegen
2022
Fisheries and Oceans Canada
2017
Technical University of Denmark
2017
University of Hawaiʻi at Mānoa
2017
Carleton University
2017
Great Lakes Institute for Environmental Research
2012-2014
Great Lakes Institute of Management
2014
Bangor University
2009-2011
This paper reviews the use of acoustic telemetry as a tool for addressing issues in fisheries management, and serves lead to special Feature Issue Ecological Applications titled Acoustic Telemetry Fisheries Management. Specifically, we provide an overview ways which can be used inform central ecology, conservation, management exploited and/or imperiled fish species. Despite great strides this area recent years, there are comparatively few examples where data have been applied directly...
Knowledge of the three-dimensional movement patterns elasmobranchs is vital to understand their ecological roles and exposure anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on horizontal movements. Our study addresses knowledge gap vertical movements by compiling first synthesis habitat use from data obtained deployment 989 biotelemetry tags 38 elasmobranch species. Elasmobranchs displayed high intra- interspecific variability in...
Electronic tags are significantly improving our understanding of aquatic animal behavior and emerging as key sources information for conservation management practices. Future integrative biology ecology studies will increasingly rely on data from electronic tagging. Continued advances in tracking hardware software needed to provide the knowledge required by managers policymakers address challenges posed world's changing ecosystems. We foresee multiplatform systems simultaneously monitoring...
Rationale Stable isotope analysis (SIA) provides a powerful tool to investigate diverse ecological questions for marine species, but standardized values are required comparative assessments. For elasmobranchs, their unique osmoregulatory strategy involves retention of 15 N‐depleted urea in body tissues and this may bias δ N values. This be particular problem large predatory where discrimination between predator consumed prey can small. Methods We evaluated three treatments (deionized water...
Climate change is leading to northward shifts in species distributions that altering interspecific interactions at low- and mid-trophic levels. However, little attention has been focused on the effects of redistributions trophic ecology a high trophic-level predator assemblage. Here, during 22-year period (1990-2012) increasing sea temperature (1.0°C) decreasing ice extent (12%) Cumberland Sound, Nunavut, Canada, we examined structure near-apex assemblage before (1990-2002) after (2005-2012)...
Animals migrate in response to seasonal environments, reproduce, benefit from resource pulses, or avoid fluctuating hazards. Although climate change is predicted modify migration, only a few studies date have demonstrated phenological shifts marine mammals. In the Arctic, mammals are considered among most sensitive ongoing due their narrow habitat preferences and long life spans. Longevity may prove an obstacle for species evolutionarily respond. For that exhibit high site fidelity strong...
Understanding the factors shaping patterns of ecological resilience is critical for mitigating loss global biodiversity. Throughout aquatic environments, highly mobile predators are thought to serve as important vectors energy between ecosystems thereby promoting stability and resilience. However, role these play in connecting food webs flow remains poorly understood most contexts. Using carbon nitrogen isotopes, we quantified use several prey resource pools (small oceanic forage, large...
Arctic cod (Boreogadus saida) is the most abundant forage fish in Ocean. Here we review habitats, distribution, ecology, and physiology to assess how climate change other anthropogenic stressors are affecting this key species. This identifies vulnerabilities for different life stages across entire distribution range of cod. We explore impact environmental (abiotic biotic) on with a regional perspective scenario up year 2050 identify knowledge gaps constraining predictions. Epipelagic eggs...
ABSTRACT Why animals migrate is a fundamental question in biology. While the adaptive significance of some animal migrations well understood (e.g., to find food, pursue more‐favorable habitats, spawn, or give birth), others remain unknown. The whale migration, for example, unresolved and multiple hypotheses have been proposed explain it. One recently hypothesis that challenges long‐standing “feeding‐breeding” migration model “feeding‐molting” model, where whales undertake latitudinal warmer...
Seamounts have been likened to “oases” of life in the comparative deserts open ocean, often harbouring high densities threatened and exploited pelagic top predators. However, few such aggregations studied any detail mechanisms that sustain them are poorly understood. Here, we present findings an integrated study 3 previously unexplored seamounts tropical Atlantic, which aimed investigate their significance as predator “hotspots” inform inclusion one world’s largest marine reserves. Baited...
Context Our understanding of population- and ecosystem-level processes commonly considers conspecific individuals to be ecologically equivalent. However, the same species may use resources differently, supporting prevalence individual specialisation or ‘apparent specialisation’. Individuals within a geographically defined population also exhibit complex subpopulation movements, whereby show philopatry specific regions that further drives variation. Aims White sharks (Carcharodon carcharias)...
Understanding the role of predators is challenging but critical for ecosystem management. For community dynamics, predator-specific size-based variation in diet, trophic position, and habitat use are rarely accounted for. Using two applied tools (stable isotopes stomach content data), we examined inter- intra-species ontogenetic variability diet (stomach contents), position (TP SIA δ 15 N TP SCA (δ 13 C) large sharks, scalloped hammerhead ( Sphyrna lewini ) dusky Carcharhinus obscurus )....
Stable isotopes of neonatal vertebrates reflect those their mother's diet and foraging location. Evaluating feeding strategies habitat use neonates is consequently complicated by the maternal isotopic signal its subsequent elimination with growth. Thus, methods that measure loss signal, i.e. when a neonate reflects own diet, are needed. Values δ 13 C 15 N were measured in liver muscle tissues <1 year old bull ( Carcharhinus leucas ) Atlantic sharpnose Rhizoprionodon terraenovae sharks...
Summary 1. Life‐history theory predicts that organisms will provide an optimal level of parental investment for offspring survival balanced against the effects on their own and future reproductive potential. 2. Optimal resource allocation models also predict increase in output with age as expected effort decreases. To date, maternal sharks has received limited attention. 3. We found neonatal dusky ( Carcharhinus obscurus ) are not independent from at point parturition but instead provisioned...
Our results provide new information that diet, carbon source and trophic position of an invasive fish species, round goby ( Neogobius melanostomus ), varies seasonally, spatially with body size in littoral habitats Lake Ontario. Based on stomach contents stable isotopes, fed at a higher the cooler, less productive Kingston Basin relative to Bay Quinte. Quinte were more reliant terrestrial carbon, whereas dominated Basin. Although suggested dreissenids dominant prey item goby, isotope mixing...