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Neat miniature respirometry system from Taiwan for measuring SMR, AMR, Ucrit of small fishes: doi.org/10.3390/s20185…… BTW, FishResp software was used there for the analysis of respirometry data😉 #respirometry #mdpisensors via Sensors MDPI

PumpResp - a DIY pump controller for intermittent-flow #respirometry suitable for fish from 0.5 to 500 g. Connect up to four chambers, regulate power of each pump, record phase information to PC. Well-integrated with #pyroscience DO meters. Budget: 120$. Purely open-source!

We used these 5-12V DC pumps for #respirometry experiments last summer: an amazing price/quality ratio comparable to #Eheim products. amazon.com/Cooling-Miniat… But, 3.3-5V submersible pumps are still needed, EHEIM🧐 #fishsci #hydroponics #aquaponics #aquaculture

These four homemade #respirometry chambers cost less than 200€ in total + one week of work. They are suitable for fish from 0.5g to 500g and have a robust design. A commercial alternative for the same kit: >3000€ That is how #DIY approach releases money for actual research🤑

Welcome to our YouTube channel🐠 The first video introduces #respirometry system that costs 1/3 of the cheapest commercial alternative. Some homemade fish jazz was used as video background, so turn ON sound if you are curious about it🦈🎸🎹 Youtube link: youtu.be/hp2pTmOhZE8

Non-commercial respirometry systems will be presented today at 11.25 am BST (in 25 minutes)! Join the "Open Electronics" session at #SEB2021 if you are curious about PumpResp and SensResp devices! #respirometry #fishsci #ecophysiology

Respirometry in Excel: recording and plotting real-time data directly from Arduino & DO sensors! The last step of 10x cheaper intermittent-respirometry system has been developed. Testing the 4-channel system with 1-500g salmons is ongoing🐟 #respirometry #arduino #fishsci

Massive DO probe calibration📊📈📉 ⁉️Have you ever used Atlas Scientific DO sensors? If yes, please let me know, I need your advice🆘 Bonus question: how many sensors are in the photo?😉 #openelectronics #respirometry #aquaculture #hydroponics #arduino at LBS

About suitability of these 1$ pumps for #respirometry experiments. Last summer, we measured SMR of >400 salmon juveniles using them. Over this period, we replaced 14 pumps due to minor power fluctuations not seriously affected DO traces. Thus, we assembled a new kit for 2022!🐟

Wow! @Pyro_Science, one of the best sensor manufacture company, is on Twitter now!!! We have used their DO sensors in our DIY #respirometry systems: really robust probes, meters and software. Highly recommended!

Last week, I conducted the workshop: "Open Electronics for Biologists" at Thünen-Institut 🇩🇪 If you are interested in assembling affordable and customisable devices, but do not know where to start, contact me. I am glad to organise a similar workshop in your research unit🧑‍🏫👩‍🔬👨‍🔧

6/6: These tests were done on an almost entirely home-built #respirometry system, with pump controllers by tech wizard @Morozov_science (FishResp)(photos), and with 3D printed chamber parts from Heidrikur Bergsson. Check their stuff out if you're interested in home-built systems!

We have finally reached the point when the hardware development & testing stage is over. It is time for creating assembly instructions and writing a methodological paper. Stay tuned🐠#respirometry NOTE that the modules PumpResp and SwimResp are @Pyro_Science-friendly as well😉

Presenting my own prototypes in open electronics and sharing projects of other research engineers are essential parts of my R&D life. Here, I demonstrate the latest open-source inventions designed for biologists at @TampereUni (Finland).

@respR_pkg @hugomflavio @Morozov_science Great discussion, #respirometry folks! @hugomflavio, you are definitely a customization genius! I will be glad to implement your mods in our tools😎 @respR_pkg, being your friendly rival is honor for me! You clearly demonstrate how competition in #opensource should look like🤗

Great customisation of PumpResp, @hugomflavio! Here you might see the beauty of open electronics. If an open hardware device partly matches your experimental needs, just modify it: add or replace components (e.g. buttons or connectors), change the code and make a nice enclosure!