Jacob Bowman

Exploring the use of underwater video for fish monitoring in the Kawarthas: part 2 By Jacob Bowman Jacob was an undergraduate student in the Raby Lab when he conducted this work, and is currently an M.Sc. student working out of the Harkness Laboratory of Fisheries ResearchIt has bee...

Read my new post on the Stoney Lake Blog! I write about my undergrad thesis project with @graham-raby.bsky.social about using underwater video as a fisheries monitoring tool. Also see the resulting paper here: doi.org/10.1093/tafa...

Scientists Testing New Technology to Pinpoint When Fish Become Food Canada’s top doctoral-level fisheries researcher is uncovering fish interactions with predators and their environment

A short feature from @trentuniversity.bsky.social on our research using @innovasea.com predation-sensing telemetry tags to study fish ecology!

www.trentu.ca/news/story/2...

Thanks to @graham-raby.bsky.social, Amber Fedus, and Michael Fox, along with members of the Stoney Lake community for supporting the project. I will conclude with a clip of some otters checking out my camera setup, captured during the project. @amfisheriessoc.bsky.social

The advantages of using underwater video include the ability to sample diverse habitats, the low level of invasiveness, the reduced need for specialized training compared to conventional fisheries research methods, and the unique behavioural observations that result from videos.

We compared video to seine netting, snorkel transects, and minnow trapping. We found that 1-hour video deployments detected more species than minnow trapping and snorkelling, but fewer species than seining. Still, the versatility of video makes it a great choice, especially for community groups.

We took 131 underwater video recordings from the Otonabee River and Stoney Lake, Ontario. We recorded 14 fish species ranging from muskellunge to Iowa darter.

Very proud of this project and the resulting paper. Underwater video is a promising alternative to capture-based fish sampling methods.

How useful is underwater video as a fisheries assessment tool in temperate freshwater ecosystems? ABSTRACTObjective. Remote underwater video (RUV) is a noninvasive survey technique that has long been used in marine ecosystems and is now gaining interest

How useful is underwater video as a fisheries assessment tool in freshwater?

@jacobbowman.bsky.social asked this question for his honours thesis, by comparing video against other ways of counting fish.

Editor's Choice in TAFS:
academic.oup.com/tafs/advance...

More Oxygen Won’t Save Fish from Warming Waters Trent study helps inform long-standing theory about increasing oxygen levels in higher water temperatures to support heat tolerance in aquatic species

In this new study, we provide new data relevant to the debate about whether oxygen limitation is a universal driver of thermal tolerance in water breathing animals.

News story: www.trentu.ca/news/story/2...

Paper: journals.plos.org/plosbiology/...

Primer: journals.plos.org/plosbiology/...

(PDF) The Freshwater Sounds Archive PDF | Freshwater ecosystems are full of underwater sounds produced by amphibians, aquatic arthropods, reptiles, plants, fishes, and methane bubbles... | Find, read and cite all the research you need o...

Pre-print out today: The Freshwater Sounds Archive! The world's first species-specific sound library for underwater freshwater species' sounds.

- 61 entries
- 35 contributors
- 16 countries
- 19 orders

www.researchgate.net/publication/...

Do you have some recordings / want to be a part of the study?

Follow the instructions via @fishsounds.bsky.social (see below), submit your recordings, and become a co-author on the final mauscript.

fishsounds.net/freshwater.js

Home is where the heat is (for brook trout that is)

Intrigued? Then check out this latest #ConPhys in Action piece, explaining the importance of local conditions to 🐟 temperature tolerance, and therefore for #Conservation planning.

Comments on Stewart et al (links in 🧵⬇️ )

It was a pleasure to be Erin's research assistant on this project in 2021! Here are some of the amazing and variable streams we visited during our fieldwork.

Species’ adaptability to climate change will depend on individual and population-level responses to heat stress. This study quantified thermal tolerance of wild trout populations and identified factors affecting interpopulation variation

🐟 Read here: https://buff.ly/3PqIVON

Local conditions drive interpopulation variation in field-based critical thermal maximum of brook trout Abstract. Individual- and population-level responses to thermal change will be pivotal for species’ resilience and adaptive responses to climate change. Th

📣 Just published in @conphysjournal.bsky.social with @jacobbowman.bsky.social, Chris Wilson, and Graham Raby

How much does upper thermal tolerance vary among wild populations of brook trout? What drives this variation? 🌡️

🧵1/5

doi.org/10.1093/conp...