Freezing Specimens And How To Mitigate Freezer Burn.

Written by Jazmine Miles Long, Taxidermist. https://www.jazminemileslong.com, Twitter: @TaxidermyLondon; Instagram: @Jazmine_miles_long

In my opinion there isn’t one system to do things correctly in taxidermy, every museum or taxidermist may have their own preferences and strategies already in place. This is simply a guideline that works for me, and I hope it can help others to mitigate some of the problems I encounter when working with skins that have been frozen in a way that has accelerated freezer burn. Following this advice might get more time out of frozen specimens and give you a greater chance that they can be mounted once the budget or staff time is there to pay for taxidermy or processing cabinet skins.

What is freezer burn?

Freezer burn happens when the moisture is evaporated out of the animal’s skin and muscles over time in the freezer. Most specimens even if they are well packed in the freezer will still get some freezer burn over a long period of time but it will be much worse if the specimen is poorly packaged or has something absorbent (like a paper label) inside the bag with it.

You can tell if a specimen has freezer burn because it will look white and dry in areas such as the feet, hands, around the eyes, ears, and mouth. And when you start skinning the skin will be yellowed and hard to remove rather than red, fleshy, and easy to peel away.

Firstly, I advise to always freeze your specimens before handling or skinning them. At a minimum you could record the specimen’s weight before freezing as this measurement is affected slightly after freezing. I personally would not take any other measurements until after they have been thoroughly frozen (unless you want to collect live parasites). As the animal dies, any parasites on the skin of the animal will leave the body as it cools and hop onto the next willing subject which will be you or any living creature in your lab! A note that fleas are not killed over night, if you freeze a fox for example leave it in there for at least two weeks before defrosting. It completely depends on the temperature of your freezer however so if you start to defrost an animal the fleas will defrost first, so if there is movement you know to refreeze! Obviously very large animals may need to be skinned straight away, so in this case my advice is wear appropriate PPE.

Great Spotted woodpecker. Image by Jazmine Miles Long.
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NatSCA Digital Digest – June 2022

Compiled by Glenn Roadley, NatSCA Committee Member, Curator of Natural Science at The Potteries Museum & Art Gallery.

Welcome to the June edition of NatSCA Digital Digest.

A monthly blog series featuring the latest on where to go, what to see and do in the natural history sector including jobs, exhibitions, conferences and training opportunities. If you have any top tips and recommendations for our next Digest please drop an email to blog@natsca.org.

Sector News

NatSCA Lunchtime Chats

The new lunchtime chats are for members only and run on the last Thursday of every month. In our last session we heard from Hannah Clarke at the University of Aberdeen, presenting ‘The Marvellous Molluscs Project – Lessons Learnt So Far’.

This series is supposed to be informal, no fancy equipment is needed, it will be put out over the NatSCA Zoom platform and there is no fixed format. There will be shaky walks through stores by mobile, demos, plain pieces to camera or traditional PowerPoints if that’s the best way to share images and info. For those who want to take part please email training@natsca.org to put forward your idea; if a stable internet connection for what you want to achieve is tricky we can put up a pre-recorded video and then speakers can jump in at the end for the discussion.

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Digital Digest – April 2022

Compiled by Milo Phillips, Assistant Curator of Entomology for Leeds Museums and Galleries.

Welcome to the April edition of NatSCA Digital Digest.

A monthly blog series featuring the latest on where to go, what to see and do in the natural history sector including jobs, exhibitions, conferences and training opportunities. If you have any top tips and recommendations for our next Digest please drop an email to blog@natsca.org.

Sector News

SPNHC / BHL / NatSCA Conference 2022

This summer will see the return of the physical NatSCA Conference – a partnership with the Society for the Preservation of Natural History Collections and the Biodiversity Heritage Library. Early Rate registration has now closed but a Late Rate registration fee is still available, with NatSCA members eligible for the Standard Member rate. The programme of events is now available to view.

NatSCA Lunchtime Chats

The new lunchtime chats are for members only and run on the last Thursday of every month. In our last session we heard from Mike Rutherford, Curator of Zoology and Anatomy at the Hunterian in Glasgow all about their investigation of a sperm whale that washed up in Thailand.

In this month’s talk we’ll be having a discussion about upcoming openings on the board of trustees for NatSCA (i.e. the committee), so please join us if you’d like to learn more about what we all do. There will be specific roles opening up so departing trustees will be explaining in more detail what those involve, but there will also be general positions available. Any NatSCA member is eligible to become a trustee; no previous experience or length of time as a member is a requirement, just an enthusiasm for supporting the work of the association. We welcome and encourage all applicants and we are particularly keen to receive nominations that help us represent the diversity of our membership, at trustee level.

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Wikipedia, Museum Volunteers And The New Normal

By John-James Wilson, Curator of Vertebrate Zoology, World Museum, National Museums Liverpool.

Like most museums across the country, World Museum suspended its volunteer programmes shortly before the first national lockdown in March 2020. This was meant to be a short-term measure but with curators continuing to work hybridly our volunteers haven’t yet returned. Organisations like Volunteer Scotland have advised volunteers to consider if and how they can work remotely.

While some museums had existing remote volunteering activities (see great examples here and here), which saw increased participation, World Museum’s vertebrate zoology collection didn’t. An additional challenge for us has been that remote access to our collections database is limited to staff with a VDI. With the pandemic still with us for some time to come (Chris Whitty has said it will be 5 years) we have started exploring ways to engage both new and long-serving volunteers with the collection online.

During lockdown, Auckland Museum published a Wikimedia strategy citing the provocative 2018 talk by Adam Moriarty which championed the importance of collection information featuring, not solely on museum’s own webpages, but in places like GBIF and Wikipedia. This reinforced our view that we need to improve the collections’ presence in Wikipedia. Wikipedia articles are created by volunteers and can be edited by anyone with a standard web browser, potentially providing a valuable activity for remote volunteering.

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Giving Collections An Extra Life – Making Video Games That Promote Collections Engagement (For Free)

Written by Glenn Roadley, NatSCA Committee Member, Curator of Natural Science at The Potteries Museum & Art Gallery.

(Note: this article includes interactive games. If they don’t work, your organisation may have blocked game websites through your network)

You might think that playing video games falls at the opposite end of the hobby-spectrum when compared to getting engaged with nature. But the immersion and creativity allowed often provides many of the same benefits, and nature is used as inspiration for many of the most popular video games. In this way video games can become a gateway to learning about nature in the real world – did you know that the highest grossing media franchise of all time (step aside, Marvel) started as a video game about collecting fictional animals to help a scientist with their biological recording project? You’ve probably heard of it. And the Animal Crossing franchise, a game series where a core activity involves collecting insects and fish to donate to the local museum, has sold over 70 million copies.

Games like Pokémon and Animal Crossing show that natural science collections are already on to a winner when it comes to subject matter and gaming. The collections are full of characters and stories, and games should be considered as another way to provide access to these.

The benefits of games are well-established (stress relief, improvement of memory and development of problem-solving skills are among the benefits often cited) and Learning Through Play is already a central part of how museums engage with their audiences. Many museums have used computer games to bring their interpretation to life (https://www.museumnext.com/article/how-can-games-in-museums-enhance-visitor-experience/).

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