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Marine Conservation / Feed

Bringing together many of our community's tech types like bioacoustics, biologging, drones, remote sensing, machine learning, and more, the Marine Conservation group is a meeting point to begin innovative collaborations and answer difficult questions.

careers

Postdoc: Noise Impacts on Marine Animals

Carly Batist

1 September 2022 9:25pm

Mystic Aquarium is seeking a Postdoctoral Investigator (PDI) to address noise impacts on aquatic species, particularly beluga whales, seals and turtles. This project will develop & carry out research to address...

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Link

Sydney seals: From Manly to Malabar, marine life sprawls across a city

Stephanie O'Donnell

8 August 2022 12:59pm

This came to me by way of my dad over the weekend, but it's is full of familiar names and has started popping up from other places in the conservation tech network. It's a gorgeous visual story via The Sydney Morning Herald, telling the tail of the return of fur seals in and...

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discussion

HydroMoth GroupGets campaign

Andrew Hill

28 June 2022 11:07am

It continues to be difficult to source microcontrollers due to global supply chain issues, but Open Acoustic Devices have managed to source a small supply for an initial group...

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Stewart Macdonald

20 July 2022 3:06am

From Alex on Twitter:

Yes. The HydroMoth has the same microphone and firmware as the standard AudioMoth which is widely used for terrestrial conservation. You would need the standard green case which has a waterproof acoustic vent.

Carly Batist

20 July 2022 5:57pm

@Andrew_Hill Out of curiosity, since this campaign reached its goal & is ending soon, is it possible to turn the remaining Hydromoth units that didn't sell into Audiomoths for a limited GroupGets? I understand that Hydromoths can be used terrestrially as well, but they are more expensive than the last Audiomoth campaigns have been by $50+ so just wanted to see if Audiomoths would still be cheaper. Just trying to figure out if I should buy more Hydromoths or wait until Audiomoths start selling again (ends up being a trade-off between cost and time basically).

Lars Holst Hansen

31 July 2022 5:20pm

@Andrew_Hill I wonder if you could let us know more about the time keeping difference btw the regular AudioMoth and the HydroMoth (which is said to do better)?

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discussion

Calling all hydrophone users!

Open Acoustic Devices

26 November 2020 10:06am

Who are we? We are Open Acoustic Devices, makers of the AudioMoth. AudioMoth is a low-cost, open-source acoustic monitoring device widely used for terrestrial...

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Open Acoustic Devices

8 January 2021 5:07pm

Glad it was useful Steph.

We'll be leaving the survey open for as long as neccesary to build up a better idea of use-cases. So if any hydrophone users missed out you are more than welcome to add yours responses. We can then update the results later in the year. 

Andy

Team Open Acoustic Devices

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discussion

Self-powered Buoy collecting vital sensor data -- Looking for conservation projects to collaborate with

Aadithya Prakash

18 May 2022 6:28am

Hey all! I work for a company called Sofar Ocean Technologies that is doing really cool work in the ocean conservation world and I'm interested in getting them to collaborate more...

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Jaishanker Nair

3 June 2022 7:19am

Hello Aadithya,

Excited to hear about your marine acoustics outreach. I am interested to explore the possibilities of collaborative work on this line.

One of my doctoral scholars is about to submit his thesis on terrestrial acoustic studies. Please respond to jrnair@duk.ac.in (as I may likely miss responses if any, send to this group). 

Regards

Jaishanker

Aadithya Prakash

14 June 2022 11:46am

Hi Jaishanker, I just reached out to over email, apologies for the delay. We are interested in working with underwater hydrophones and this might be of use in your specific case study. Bristlemouth's timeline is still being created, but we're hoping to have devkits ready closer to the end of this year. I'm happy to chat more to learn about the specific research you are doing and how we can best help!

Carly Batist

21 June 2022 10:49pm

If you're looking to identify collaborators - probably lots of organizations listed in the Conservation Tech Directory would be interested (quick prelim search yields orgs like Echospace, European Tracking Network, FACT network, IMOS, IOOS, other tracking networks like that, USA's NEON, eOceans, Oceans+)! Also org's like Blue Ventures, Save our Seas (run acoustic tracking array), MBON (run Biotrack) come to mind. 

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event

MTS TechSurge

Marine Technology Society

10 February 2022 12:00am

The Marine Technology Society is hosting their latest MTS TechSurge event - Florida Estuary and Coastal Monitoring - Looking Ahead to 2030. Register now on the Marine Technology Society website and join them on 12 - 14...

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discussion

Tech Tutors: How do I use animal-borne imaging technology in marine and terrestrial environments?

Ellie Warren

26 August 2021 12:10am

Hi Wildlabbers, We're so excited for tomorrow's episode about National Geographic's Crittercam with Tech Tutor Kyler Abernathy, who'll talk to us about how...

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Lars Holst Hansen

15 September 2021 6:41am

Hi @Rob+Appleby !

The implementation in the Vectronic camera collar is purely store on board - no transmission.

I believe they simply stuck one of the Foxeer action ("Box") cameras inside and wakes it up and triggers it according to the camera schedule uoloaded to the collar (still and video options). 

RunCam is another manufacturer of FPV and action cameras which might be interesting for you.

Cheers,

Lars

 

Rob Appleby

15 September 2021 11:24pm

Hi Lars,

I have a colleague that's successfully used the Mobius cam system (https://www.mobius-actioncam.com/) for camera collars as well. RC cams are popular choice it seems. I have been attempting to tweak cheaper 'cube' cameras (e.g. https://tinyurl.com/w72kh77r) to do a similar job. I am using a bit of Frankestein's monster array of small control boards, including an Adafruit low power timer (https://www.adafruit.com/product/3573) and a SparkFun pro mini (https://www.sparkfun.com/products/11113). I am using an SMD transistor as a switch to control power, and another could be added to control settings if needed. Hoping to do a tutorial on it at some point in case there's any interest. 

Cheers,

Rob

Lars Holst Hansen

16 September 2021 6:54am

Would certainly be cool to see a tutorial on this! Looking forward to that!

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discussion

IoTs in Marine protected area management

Mauman

7 June 2021 8:12am

How the Internet of Things  (IoTs) can help in marine protected area management? Does anyone know if there is any existing system available and how it can be implemented...

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Akiba

8 June 2021 10:16am

Hi Mauman. 

Did you have a specific application in mind? There are quite a few IoT systems but they all need to be pieced together. If there's a specific application context, I think it'd be an interesting discussion to have though. 

Akiba

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discussion

How difficult is it to build a buoy and constrain it in place?

Akiba

14 March 2019 3:54pm

Hi everyone.  I'm very interested in marine science and conservation. Is there any information on how to build a buoy? Icing on top would be to constrain it in place...

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Carlos Abrahams

23 November 2020 5:23pm

Akiba,

You might want to check out these systems, if you haven't seen them already?

http://www.smruconsulting.com/the-coastal-acou-a-new-tool-for-remote-and-real-time-acoustic-monitoring/

https://www.seiche.com/underwater-acoustic-products/platforms/acoustic-monitoring-buoy/

https://www.mseis.com/services/buoys/

https://rtsys.eu/buoys

Thanks, Carlos

Lindy Clyde Knowles

29 December 2020 11:45am

I worked with some folks years ago, and I'll dig into my files to see if I had a schematic of some sort. this following video --> https://www.youtube.com/watch?v=OMzk94BQ-sg&ab_channel=RobertBevan is similar to what we would've done, though we did use insulation foam in place of the pool float, upcycled soda bottles and to anchor in place we used a car tire with cement and an I bolt alongside somethign that swivels so that the rope that holds the bouy doesn't snap off. We used it in shallower and calmer areas, though it might've been 10'-15' (3-5m). I'll make a note to look for any files I have of the project, and if you don't hear from me in the new year, could you send me a reminder?
As @Freaklabs would've heard me say a few times, PVC, whilst not environmentally friendly, is quite adaptable and can allow a modular system to be built to suit your needs. 

 

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