Colby James Bignell
@ColbyBignell
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Shark Movement Ecologist, Underwater and Aerial Photographer @imasutas PhD Candidate - @csiro Ningaloo Outlook Program
Perth, Western Australia
Joined July 2016
A blog post I wrote for CSIRO about my PhD research and new paper on whale shark movements 😀 https://t.co/esPLTXeVq2
csiro.au
Female whale sharks are conspicuous in their absence from aggregation sites such as Ningaloo Reef. A unique satellite tracking data set is showing us where they are so that we can begin to understand...
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There was some evidence that females preferred cooler waters than males, particularly in Spring months. On average, females also appeared to dive deeper in warmer temperatures (>26°C) relative to males.
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Female whale sharks migrated from Ningaloo Reef earlier in June/July and spent more time offshore, while males stayed longer and used coastal waters more frequently.
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NEW RESEARCH - Proud to finally share my first lead-author paper on Whale Shark movements! 🐋🦈 We found sex-specific differences that improve our understanding about movements by females 🌏🔭 Link to read https://t.co/75PIYBJhBZ
@CSIRO @UTAS_ #NingalooOutlook
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Following the loss of white sharks from False Bay, both seals and sevengill sharks have increased in relative abundance, coinciding with declines in small fish that seals feed on and smaller sharks that sevengills prey upon. Illustration: Kelly Quinn
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🚨 New #Shark Pub available in @NaturePortfolio #ScientificReports 🚨 Here we reveal the dynamic physical processes that drive suitable habitat for Tiger Sharks in a subtropical coastal embayment🦈 🔗link here: https://t.co/3Ec81VMFmf 🧵 Thread: (1/6) 🎥: @jakemasondiving
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Very excited to share our recent paper about the secret lives of wedgefish at Ningaloo Reef, Western Australia - just in time for #FlatsharkFriday. @minderoo @Recesito @FreshFishMurd @MurdochUni @DrNickWhitney @AdrianGleiss
https://t.co/aosusGJ0tZ
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New publication in @SciReports showing the effectiveness of electric deterrents to reduce risk of bites from white, tiger, and bull sharks. These deterrents have now been tested on the three species responsible for the most fatal bites. https://t.co/0m7kKvwSfb
nature.com
Scientific Reports - Personal electric deterrents can reduce shark bites from the three species responsible for the most fatal interactions
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Most incredible science discovery this decade! Changes every textbook. Manganese nodules produce oxygen in the #deepsea!!? These are the nodules targeted for mining… they make oxygen… 😳🤯 @DeepSeaPod @DSBSoc @BBCMorelle
bbc.com
The discovery that lumps of metal on the seafloor produce oxygen raises questions over plans to mine the deep ocean.
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🚨My first PHD chapter titled “Links between the three-dimensional movements of whale sharks (Rhincodon typus) and the bio- physical environment off a coral reef” is out TODAY 🚨 Read it #OpenAccess ! 🔗link here: https://t.co/4WZNiE6a1G 🧵(1/n) 📸: @brookepykephoto
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Nature is crazy!
‼️TW: Graphic Imagery ‼️ Stole this vid of an orca predating on a whale shark off of fb 🔗👇 They are displaying v similar behaviour to Port and Starboard, but in the Sea of Cortez. It seems the first orca is distracting the WS while the second removes the liver! Fascinating.
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How I spent #worldoceansday - out on the water doing research and getting visited by some v cool marine life!! This dive was the highlight of many ocean experiences over the past 10 days at #Ningaloo 🐟 @WorldOceansDay @CSIRO
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There's an official government petition to raise the PhD stipends in Australia to $45k. Their current rate of less than $30k makes it impossible to focus on research and will have long term impacts on Australian trained scientists. Sign it!
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“Sub-tropical Sea Lion of the Abrolhos” by @colbybignell (shortlisted in the #WaterWorld category in the 2022 ESA #PhotoCompetition). “An endangered Australian Sea Lion pictured in a unique coral reef habitat at the Abrolhos Islands [...]” #MarineMonday #WildlifePhotography
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Finalists in the #OutStandingInTheField category in the 2022 ESA #PhotoCompetition included Russell Charters, Samantha Prior, @Sophiee_Walks and @colbybignell. For all the finalists, visit our website: https://t.co/KhLLsFdxrm
#NaturePhotography #Ecologist
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Great to be a part of the field work in the beautiful Abrolhos Islands for this project with @minderoo & @CSIRO !
Tiny cell fragments are being collected off WA's coast to create a 'DNA library' of Australian animals. @SarahSmith9_ #9News
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Great to see some of my footage from a recent field trip used in this video!
We're building a huge DNA library of Australian plants and animals! 🧬 📚 This will help make identifying (and protecting) species much easier. We can use simple eDNA methods to monitor biodiversity in an area. @minderoo
https://t.co/vTOsayQQYr
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Latest on the CSIRO blog - here's an update on the Ningaloo Outlook projects that myself and my fellow PhD scholars are working on! Six months in and still in the honeymoon phase :) #phdlife #ningalooreef
https://t.co/EOFGchwCGk
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