A5078206156- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Climate change and permafrost
- Lichen and fungal ecology
- Coastal wetland ecosystem dynamics
- Diatoms and Algae Research
- Peatlands and Wetlands Ecology
- Indigenous Studies and Ecology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Aquaculture Nutrition and Growth
- Marine and fisheries research
- Botany and Plant Ecology Studies
- Fish Ecology and Management Studies
- Neuroscience of respiration and sleep
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Echinoderm biology and ecology
- Marine Ecology and Invasive Species
- Microbial Community Ecology and Physiology
- Species Distribution and Climate Change
- Yeasts and Rust Fungi Studies
- Alcohol Consumption and Health Effects
- Marine Biology and Environmental Chemistry
- Cannabis and Cannabinoid Research
Canadian Museum of Nature
2019-2024
University of New Brunswick
2015-2018
Medical College of Wisconsin
2005
Climate change is transforming marine ecosystems through the expansion and contraction of species’ ranges. Sea ice loss warming temperatures are expected to expand habitat availability for macroalgae along long stretches Arctic coastlines. To better understand current distribution kelp forests in Eastern Canadian Arctic, kelps were sampled coasts species identifications percent cover. The sampling effort was supplemented with occurrence records from global biodiversity databases, searches...
The Arctic is among the fastest-warming areas of globe. Understanding impact climate change on foundational marine species needed to provide insight ecological resilience at high latitudes. Marine forests, underwater seascapes formed by seaweeds, are predicted expand their ranges further north in a warmer climate. Here, we investigated whether northern habitat gains will compensate for losses southern range edge modelling forest distributions according three distribution categories:...
Abstract The Arctic archipelago of Svalbard is a hotspot global warming and many fjords experience continuous increase in seawater temperature glacial melt while sea‐ice cover declines. In 1996/1998, 2012–2014, 2021 macroalgal biomass species diversity were quantified at the study site Hansneset, Kongsfjorden (W‐Spitsbergen) order to identify potential changes over time. 2021, we repeated earlier studies by stratified random sampling (1 × 1 m 2 , n = 3) along sublittoral depth transect (0,...
Sequence data (COI-5P and rbcL) for North American members of the tribe Pterosiphonieae were compared with collections from around world. Phylogenetic analyses resolved Pterosiphonia as polyphyletic many species required transfer to other genera. In our sensu stricto included only type P. cloiophylla (C. Agardh) Falkenberg complanata (Clemente) Falkenberg, well South African stegengae sp. nov. A new genus, Xiphosiphonia gen. nov., was described X. ardreana (Maggs & Hommersand) comb....
Sequence data generated during a Canadian barcode survey (COI-5P) of the tribes Polysiphonieae and Streblocladieae, large taxonomically challenging group red algae, revealed significant taxonomic confusion hidden species diversity. Polysiphonia pacifica Hollenberg, P. paniculata Montagne, stricta (Dillwyn) Greville Vertebrata fucoides (Hudson) Kuntze were all complexes two or more genetically distinct yet overlooked species. One variety was elevated to rank as determinata (Hollenberg) Savoie...
Abstract There is currently conflict in the literature on taxonomic status of reportedly cosmopolitan species Neosiphonia harveyi , a common red alga along coast Atlantic Canada and New England, USA . sensu lato was assessed using three molecular markers: COI ‐5P, ITS rbc L. All markers clearly delimited genetic groups within N. this region, which we identified as harveyi, japonica Polysiphonia akkeshiensis (here resurrected from synonymy with ). Although considered by some authors to be...
Four specimens of the invasive red alga Heterosiphonia japonica were collected from Mahone Bay, Nova Scotia, Canada, in August 2012. The identity these was confirmed using molecular and anatomical evidence. To best our knowledge, this is first report H. Canada – an that has been advancing along northeastern coast North America since its recent
Cerebral vascular smooth muscle cells express the CB(1) cannabinoid receptor, and receptor agonists produce vasodilation of cerebral arteries. The purpose this study was to determine whether vasoconstriction rat middle artery (MCA) results in local formation endocannabinoids (eCBs), which, via activation receptors, oppose a feedback manner. thromboxane A(2) (TXA(2)) mimetic U-46619 significantly increased N-arachidonylethanolamine (AEA) 2-arachidonylglycerol (2-AG) content isolated MCA,...
:Northwestern Pacific specimens of Callophyllis radula, rhynchocarpa, Pterosiphonia bipinnata and Sparlingia pertusa, all with type localities in Far East Russia, were genetically compared to reportedly conspecific populations the Northeast Pacific. Analyses resolved distinct species a biogeographical split between Northwest for C. rhynchocarpa P. bipinnata. variforma sp. nov. was established accommodate plants previously attributed radula; whereas, synonymy flabellulata rhynochocarpa...
Five taxa in the genus Neidium, N. iridis, beatyi sp. nov., vandusenense collare nov. and lavoieanum are documented from a pond stream system VanDusen Botanical Garden, Vancouver, Canada. Neidium is large linear species with multiple longitudinal canals sagittate apices. The areolae occluded by finger-like silica extensions on external surface. This taxon distinguished iridis number of (>5), shape valve apices, smaller size. broadly distinct rostrate Two-three present along each margin....
This paper presents a case study of locally adapted sustainable strategy salinity reduction applied to the Saint Lawrence maritime ecosystem at Biodome de Montreal. In conformity with standards CAZA (Canadian Aquarium and Zoos Association), this procedure was implemented reconcile animal well-being, representativeness control costs under operational environment cold seawater recirculation system featuring Golfe du Laurent Ecosystem (GSLE) its associated live collection. A simple methodology...
Frustulia Rabenhorst is an established diatom genus that common and widespread across North America. As for many genera, taxa within have been the subject of taxonomic confusion. Although recent studies examined species from Europe New Zealand, there exist no detailed genetic data American individuals. Using both molecular (rbcL 18S rRNA sequences) morphological (i.e., frustule characters shape analysis) data, we investigated in European Zealand were also included to investigate how related....
The Arctic archipelago of Svalbard is a hotspot global warming and many fjords experience continuous increase in seawater temperature glacial melt while sea-ice cover declines. In 1996/98 2012-14 macroalgal biomass species diversity were quantified at the study site Hansneset, Kongsfjorden (W-Spitsbergen) order to identify potential changes over time. 2021, we repeated earlier studies by stratified random sampling (1x1 m2, n=3) along sublittoral depth transect (0, 2.5, 5, 10 15m)...