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- 10Graduate and Postdoctoral Studies (GPS), Faculty of/Theses and Dissertations
- 9Biological Sciences, Department of
- 9Biological Sciences, Department of/Research Data and Materials (Biological Sciences)
- 2Chemistry, Department of
- 2Chemistry, Department of/Journal Articles (Chemistry)
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Geodia barretti - Energy budget data sheet for Limnology and Oceanography
2017-05-26
Geodia barretti is a massive nearly spherical sponge that forms dense assemblages on the continental shelf of the North Altantic and the Norwegian Sea. We studied the metabolism of individual sponges collected using a remotely operated vehicle and maintained in large tanks with high volumes of...
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Spring 2014
Dynamics in wildlife populations emerge from the interactions between individuals and their environment. Constraints between individual nutrition and food availability are therefore fundamental to understanding how species adapt to environmental variability and to identify mechanisms controlling...
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Molecular and functional bases of coordination in early branching metazoans – insights from physiology and investigations of potassium channels in the Porifera
DownloadFall 2010
Tompkins MacDonald, Gabrielle Jean
Sponges are filter feeders that lack nerves and muscle but are nonetheless able to respond to changes in the ambient environment to control their feeding current. Cellular sponges undergo coordinated contractions that effectively expel debris. Syncytial sponges propagate action potentials through...
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Fall 2010
Epithelia form protective barriers and regulate molecule transport between the mesenchyme and environment. Amongst all metazoans, only sponges are said to lack 'true' epithelia however the physiology of sponge cell layers are rarely studied empirically. Aggregates and gemmules of a freshwater...
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Polar bear (Ursus maritimus) foraging, spatial, and energetics ecology in the changing Arctic
DownloadFall 2020
Climate warming in the Arctic has resulted in rapid and extensive changes to sea ice dynamics and profound ecological impacts, including changes to the timing of life history events, community structure, and food web dynamics. Sea ice-dependent species such as polar bears (Ursus maritimus) are...
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Respiration and Excurrent Velocity DATA for 5 demosponges - Data associated with: Ludeman, Reidenbach and Leys, JEB 2017 The energetic cost of filtration by demosponges and their behavioural response to ambient currents
Respiration and Excurrent Velocity DATA for 5 demosponges - Data associated with: Ludeman, Reidenbach and Leys, JEB 2017 The energetic cost of filtration by demosponges and their behavioural response to ambient currents
Download2017-02-14
Abstract: Sponges (Porifera) are abundant in most marine and freshwater ecosystems and as suspension feeders they play a crucial role in filtering the water column. Their active pumping enables them to filter up to 900 times their body volume of water per hour, recycling nutrients and coupling a...
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Fall 2018
Glass sponge reefs are globally unique ecosystems on Canada’s western continental shelf that are susceptible to harm from fishing (e.g., bottom-contact trawling). In 2017, a marine protected area (MPA) was created to protect four of these reefs in Hecate Strait and Queen Charlotte Sound. Three...
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Supplementary Files for: Sponge behaviour and the chemical basis of responses: a post-genomic view
Download2019-05-25
Sponges perceive and respond to a range of stimuli. How they do this is still difficult to pin down despite now having transcriptomes and genomes of an array of species. Here we evaluate the current understanding of sponge behaviour and present new observations on sponge activity in situ. We also...
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The Effects of Hydraulic Fracturing Flowback and Produced Water on Exercise Capacity and Metabolic Fuel Selection in Rainbow Trout (Oncorhynchus mykiss)
DownloadFall 2022
Hydraulic fracturing is an increasingly popular technique for unconventional hydrocarbon extraction in Canada. As its popularity continues to grow, concerns are being raised regarding its waste product, hydraulic fracturing flowback and produced water (FPW), and its effects on the environment....