A5069583758- Marine Bivalve and Aquaculture Studies
- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Marine and fisheries research
- Coastal wetland ecosystem dynamics
- Crustacean biology and ecology
- Fish Ecology and Management Studies
- Ocean Acidification Effects and Responses
- Coastal and Marine Dynamics
- Isotope Analysis in Ecology
- Coral and Marine Ecosystems Studies
- Cephalopods and Marine Biology
- Aquatic Invertebrate Ecology and Behavior
- Aeolian processes and effects
- Avian ecology and behavior
- Ecology and biodiversity studies
- Insect and Arachnid Ecology and Behavior
- Environmental DNA in Biodiversity Studies
- Species Distribution and Climate Change
- Marine and coastal ecosystems
- Parasite Biology and Host Interactions
- Geological formations and processes
- Remote-Sensing Image Classification
- Marine animal studies overview
- Wildlife Ecology and Conservation
University of New Brunswick
2015-2025
University of Fredericton
2017
Université du Québec à Rimouski
2009
Woods Hole Oceanographic Institution
1999
Dalhousie University
1989-1998
Molecular scatology and next-generation sequencing identified previously unknown linkages among ecosystems in the diet of Semipalmated Sandpipers (Calidris pusilla) Bay Fundy, Canada. During their annual migratory stopover, birds consumed a wider range prey items than reported, which suggests that they are not selecting for amphipod Corophium volutator acting as generalist foragers. Our analysis several novel items—arachnids, crabs, bivalves, terrestrial freshwater insect species,...
Abstract Climate change is altering naturally fluctuating environmental conditions in coastal and estuarine ecosystems across the globe. Departures from long-term averages ranges of variables are increasingly being observed as directional changes [e.g., rising sea levels, surface temperatures (SST)] less predictable periodic cycles (e.g., Atlantic or Pacific decadal oscillations) extremes flooding, marine heatwaves). Quantifying short- impacts climate on tidal marsh seascape structure...
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Protists (microbial eukaryotes) are a critically important but understudied group of microorganisms. They ubiquitous, represent most the genetic and functional diversity among eukaryotes, play essential roles in nutrient energy cycling. Yet, protists remain black box marine sedimentary ecosystems like intertidal mudflats Bay Fundy. The harsh conditions zone high nature tides Fundy provide an ideal system for gaining insights into major food web players, patterns potential structuring...
Monitoring salt marshes with remote sensing is necessary to evaluate their state and restoration. Determining appropriate techniques for this can be overwhelming. Our study provides insight into whether a pixel- or object-based Random Forest classification approach best mapping vegetation in north temperate marshes. We used input variables from drone images (raw reflectances, indices, textural features) acquired June, July, August 2021 of marsh restoration reference site Aulac, New...
Time-lapse video was used to record movement paths of Strongylocentrotus droebachiensis on a rocky bottom at 8 m depth, both grazing front and in recently formed barrens the wake front. Urchins did not exhibit strong directionality we detect any differences variables between barrens. Density conspecifics had negative effect speed, move length (distance), daily displacement urchins, but significantly affect proportion time spent moving, linearity index number moves taken per day. The...
Top-down, bottom-up, middle-out and abiotic factors are usually viewed as main forces structuring biological communities, although assessment of their relative importance, in a single study, is rarely done. We quantified, using multivariate methods, associations between biotic (top-down, bottom-up middle-out) variables infaunal population/community variation on intertidal mudflats the Bay Fundy, Canada, over two years. Our analysis indicated that spatial structural like site plot accounted...
We examined biotic and abiotic variables on the expansive intertidal mudflats of upper Bay Fundy, Canada, at 8 geographically separate sites over 2 years (2009–2011). Invertebrate density, surface density primary producers (mainly diatoms, measured as chlorophyll-a concentration), shorebird- fish-foraging activity, sediment properties varied considerably through time space. Dissimilarity in invertebrate community between consecutive sampling rounds was lower during peaks richness...
An important top-down predator, the northern pike (Esox lucius), faces harsh environmental conditions in boreal ecoregion. They are often managed for recreational fishing and, more recently, to create offsets; strategies aimed at balancing ecological impacts by enhancing or restoring habitats. Our study examines populations two remote lakes Alberta: Steepbank and Wappau. The differ size, vegetation cover, trophic status, providing a natural experiment investigating growth, condition, diet,...
<title>Abstract</title> Salt marshes are composed of a mosaic subhabitats including intertidal creeks, the marsh platform, and salt pools. During tidal inundation, these function together to provide habitat nekton (fish crustaceans). We determined community compositions spatiotemporal scales variation between two biophysical regions with contrasting regimes in Maritime Canada, on seasonal basis (April‒November) 2022‒2023. Bay Fundy their megatides have higher platform elevations lower...
Dix mille petoncles (Placopecten magellanicus) mesurant de 4 a 26 mm hauteur coquille ont ete liberes dans une zone 40 m 2 d'un chenal maree 8 profondeur, la baie Lunenburg (Nouvelle-Ecosse, Canada). Nous avons surveille leur survie, distribution et leurs predateurs potentiels pendant les 13 mois qui suivi deversement en novembre 1990, faisant des releves sur quadrats prenant enregistrements video. La dispersion mortalite rapides premieres semaines, on estime que cette periode predation par...
Des milliers de juveniles du petoncle geant (Placopecten mugellanicus) ont ete lâches en deux endroits sur le fond la mer (un secteur a topographie ouverte, un autre fermee) long cote sud-ouest Nouvelle-Ecosse, Canada, saisons, soit et hiver. Les petoncles indigenes introduits ainsi que leurs predateurs (les etoiles Asterias vulgaris A. forbesi crabe Cancer irroratus) fait l'objet d'une surveillance video d'examens visuels par des plongeurs une periode 17 mo. La densite diminue rapidement...