Exeter Marine Podcast: Becoming Marine Biologists – with Lauren Henly, Emma Weschke and Tim Gordon

This episode was recorded back in early 2019. Ben talks to Lauren Henly, Emma Weschke and Tim Gordon, who are all masters by research or PhD students in Prof. Steve Simpson’s research group (you might remember Steve from an earlier episode, Coral Reef Bioacoustics Part I). The discussion focuses around the research they’re all undertaking, what got them interested in marine biology, and what they have done so far.

 


 

About our guests:

Emma Weschke

At the time of recording Emma was a masters by research student and is now undertaking a PhD with the University of Bristol focusing on coral reef fish ecology and bioacoustics.

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Lauren Henly 

Lauren is a PhD student with the University of Exeter and Natural England studying functional ecology and behaviour of wrasse to inform management of wrasse fisheries. She provided us with the update below:

 “I’m now in the 3rd year of my PhD. I’ve been developing lots of different methods to assess the sustainability and potential impacts of the Live Wrasse Fishery on the south coast. I’m using genetics to look at the population structure of wrasse along the south coast so we can identify the most effective management unit size, using stable isotopes to predict the ecological impacts of the fishery, and working to ensure the views of other stakeholders (including recreational anglers) are considered when developing management measures for the fishery. It’s great being able to use such a broad range of techniques to address a key issue.”

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Tim Gordon

Tim is completing a PhD with the University of Exeter and the Australian Institute for Marine Science focusing on coral reef bioacoustcs, what can you learn from coral reefs by listening to them. You can find out more about Tim’s work in a previous episode – Coral Reef Bioacoustics Part II.

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Topics discussed:

  • Sustainability of wrasse fisheries around the UK.
  • Ecological consequences of marine anthropogenic noise on coral reefs, both during the day and at night.
  • How fish use underwater soundscapes.
  • Using underwater sound to aid marine conservation efforts.
  • The impacts of the degredation of coral reef marine noise
  • Using underwater speakers to make reefs louder.
  • The bigger picture aspects of working in a research group.
  • What got you into marine biology?

 


 

Resources:

 


 

Episode and show notes produced by Ben Toulson and Katie Finnimore.

Check out other episodes of the podcast here.

You can subscribe on most podcast apps, if you’re feeling kind please leave us a review!

#ExeterMarine is an interdisciplinary group of marine related researchers with capabilities across the scientific, medical, engineering, humanities and social science fields. If you are interested in working with our researchers or students, contact Emily Easman or visit our website!

 

 

Exeter Marine Podcast – Arctic Terns, Basking Sharks; Bluefin Tuna, with Dr. Lucy Hawkes

 

In this episode we talk to Dr. Lucy Hawkes about a number of her research areas including arctic terns, basking sharks and bluefin tuna. Listen out for a story about a mysterious tuna tag as well.

 


 

About our guest: Dr. Lucy Hawkes 

Lucy is a physiological ecologist, whose work focuses on the costs and drivers of migration in animals (vertebrates and invertebrates) using emergent technologists such as satellite telemetry, heart rate logging, accelerometry and metabolic rate measurements. Lucy uses technical approaches including biologging, spatial ecology, remote sensing and respirometry to make empirical measurements that help in the understanding of amazing migratory performances. Lucy’s work has also investigated the impact of external forcing factors, such as climate change and disease ecology on migration and breeding ecology.

 

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Above: Dr. Lucy Hawkes, Dr. Matt Witt and the team working with basking sharks. Photo credits: Nic Davies

 


 

Topics discussed:

  • Lucy’s experience as a National Geographic Explorer.
  • Tagging and studying bluefin tuna.
  • The long distance migrations of arctic terns.
  • Studying basking shark behaviour.
  • Breaching basking sharks.
  • The journey of a mysterious tuna tag (pictured right).

 

 

 

 


 

Basking shark videos

 


 

Resources:

 


 

Episode and show notes produced by Ben Toulson and Katie Finnimore.

Check out other episodes of the podcast here.

You can subscribe on most podcast apps, if you’re feeling kind please leave us a review!

#ExeterMarine is an interdisciplinary group of marine related researchers with capabilities across the scientific, medical, engineering, humanities and social science fields. If you are interested in working with our researchers or students, contact Emily Easman or visit our website!

 

 

Exeter Marine Podcast – Coral Reef Bioacoustics Part II, with Tim Gordon

Show notes

In this episode we talk to Tim Gordon about his work studying coral reef bioacoustics, this is a follow-up from the interview we did with Steve Simpson, which you can find here.


About our guest: Tim Gordon

Tim Gordon is currently undertaking a PhD focussing on how human activities impact underwater bioacoustics. Tim’s area of study uses fieldwork as well as laboratory work and computational analysis, to assess the likely effect of noise pollution on marine life, with the aim of determining how they can best be managed.

Tim was recently rewarded for his science communication efforts, by winning the FameLab International prize for 2019, becoming the first UK national champion of the competition since going global.

 


 

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Topics discussed:

  • Importance of soundscapes for marine animals
  • Changes in underwater biological and human sounds
  • Uses and types of sound underwater
  • Process of reef fish using sound to settle in coral reef habitats
  • Effect of noise pollution on fish orientation

 


 

Resources:

Online Talk: Scientists and Explorers Live – “Songs of the Sea” with Encounter Edu

British Council’s page for Tim’s FameLab competition talk

Talk: “Climate Change: Tales from the front line”

Talk: “Helping Nemo find home”

ResearchGate

Google Scholar

Twitter

 


 

Episode and show notes produced by Ben Toulson and Katie Finnimore.

Check out other episodes of the podcast here.

You can subscribe on most podcast apps, if you’re feeling kind please leave us a review!

#ExeterMarine is an interdisciplinary group of marine related researchers with capabilities across the scientific, medical, engineering, humanities and social science fields. If you are interested in working with our researchers or students, contact Emily Easman or visit our website!

 

 

Exeter Marine Podcast – Coral Reef Bioacoustics Part I, with Prof. Steve Simpson

 

Show notes

In this episode Professor Steve Simpson talks to us about his research covering a number of topics focusing primarily on his bioacoustics work on coral reefs. He also discusses his work on Blue Planet 2 and recalls an encounter with David Attenborough.

 


 

About our guest: Steve Simpson

Professor Steve Simpson is a marine biologist and fish ecologist. His research focuses on the behaviour of coral reef fishes, bioacoustics, the effects of climate change on marine ecosystems, fisheries, conservation and management. Following a NERC Knowledge Exchange Fellowship Steve has ongoing links with industry and policy on the themes of European Fisheries and Climate Change, and Anthropogenic Noise and Marine Ecosystems. Steve works closely with Cefas and the Met Office, and is an active member of the IQOE Science Committee, he has been an Academic Advisor and featured scientist in Blue Planet 2

Steve’s work combines fieldwork, often through expeditions to remote and challenging environments around the world, with laboratory-based behaviour experiments, data-mining, and computer modelling.

Steve’s research focuses on:

  • The impact of anthropogenic noise on marine ecosystems.
  • The effects of climate change on fish and fisheries.
  • Sensory and orientation behaviour of marine organisms.
  • Dispersal, connectivity and biogeography.
  • Coral reef restoration.
  • Fisheries and Conservation Management.

 


 

 

Topics discussed:

  • Bioacoustics of coral reefs.
  • How underwater sound can reveal animals we rarely observe visually on coral reefs.
  • How fish choose communities to live in by listening.
  • Is the underwater world silent?
  • How do underwater species hear?
  • How do you record an underwater soundscape?
  • Blue Planet 2 and David Attenborough.

 

Resources:

TEDx 2019 Talk: Changing the Soundtrack of the Ocean

BBC Earth Film: Underwater acoustics work

Agile Rabbit Talk: Underwater Sound in Blue Planet II

Facebook Live: Q&A Session

Article: Exeter marine expert awarded prestigious medal for scientific contribution

Twitter

 


 

Episode and show notes produced by Ben Toulson and Katie Finnimore.

Check out other episodes of the podcast here.

You can subscribe on most podcast apps, if you’re feeling kind please leave us a review!

#ExeterMarine is an interdisciplinary group of marine related researchers with capabilities across the scientific, medical, engineering, humanities and social science fields. If you are interested in working with our researchers or students, contact Emily Easman or visit our website!

 

Scientists at Sea Podcast – Atlantic Bluefin Tuna in the UK, with Tom Horton

Show notes

In this episode we speak to Tom Horton, a current PhD student at the University of Exeter and Project Officer for ThunnusUK. Tom and Ethan discuss all things ThunnusUK and Atlantic bluefin tuna.

ThunnusUK (named after the Atlantic bluefin tuna’s latin name, Thunnus thynnus), is a collaborative study between the Univeristy of Exeter and the Centre for Environment, Fisheries and Aquaculture Science (Cefas). The aim is to provide a baseline understanding of ecology and global distribution of Atlantic bluefin tuna that can be found in the waters around southwest England.

You can find out more about ThunnusUK here.

 

Atlantic bluefin tuna have historically weighed up to 900kg and measured nearly 4m.

 


About our guest: Tom Horton

Tom has built up an impressive career portfolio, after graduating from a Marine Biology (MSci) at the University of Southampton he became a research assistant at the Marine Megafauna Foundation. Following this he moved to Cornwall to become the Volunteer Seaquest Southwest Co-ordinator for the Cornwall Wildlife Trust and then progressed on to work for Marine Discovery Penzance as a researcher and guide. He is now undertaking a PhD with the University of Exeter, Cefas, and Stanford University focusing the spatial ecology of marine vertebrates that are of conservation concern, Atlantic bluefin tuna being a prime example.

 

Tom (right), pictured out on fieldwork.

 


 

Topics discussed

A selection of the tags used in the research
  • What is Thunnus UK?
  • How long has Thunnus UK been around?
  • Atlantic bluefin tuna in UK waters, why do they come here?
  • How do you tag and track a bluefin tuna?
  • How do tuna tags work?
  • Tagging animals safely and responsibly
  • How have fishers responded to the project?
  • Where do Atlantic bluefin tuna travel to when they leave UK waters?

 


 

Resources

 

Thunnus UK website

Have you spotted a Bluefin Tuna? You Can report your sighting here 

Tom Horton on Twitter

Thunnus on Twitter

 

 


Episode and show notes produced by Ben Toulson and Katie Finnimore.

Check out other episodes of the podcast here.

You can subscribe on most podcast apps, if you’re feeling kind please leave us a review!

As mentioned in the podcast, if you would like to hear what our series 1 presenters (Ethan Wrigglesworth and Molly Meadows) have been up to, check out Trail and Errors.

#ExeterMarine is an interdisciplinary group of marine related researchers with capabilities across the scientific, medical, engineering, humanities and social science fields. If you are interested in working with our researchers or students, contact Michael Hanley or visit our website!

 

Scientists at Sea Podcast – Sail Against Plastic Part II

Show notes

You might remember that earlier in the series we spoke to Flora Rendell and Lowenna Jones about an arctic sailing expedition they were about to embark upon in 2018 titled ‘Sail Against Plastic’. Well they’ve been there, done that, and got the microplastic samples to prove it. If you didn’t catch the episode, I would recommend having a listen to it here.

The Sail Against Plastic team – Photo credit – Ben Porter

In short, Sail Against Plastic was a two-week multidisciplinary research expedition taking place in the waters off Svalbard. Sailing aboard the Blue Clipper, the team investigated the impact of plastics and noise pollution on this arctic environment whilst producing film, photography and artwork to capture the experience and illustrate their findings. You can find out about the background of the expedition on the Sail Against Plastic website.

This time Flora is joining us with Daniel Osmond, with both of them being greatly involved in the scientific aspect of the expedition. Since recording they have both gone on to secure PhDs, well done to both!


“It was just a great example of how different people with different experiences, interests and skill sets can all come together”


About our guests

Flora Rendell – Scientific Director

Flora is a current postgraduate research student at the University of Exeter, with a strong interest in science outreach and the effects of anthropogenic stressors on populations and habitats. Her key interests in aquatic habitats and the conservation and management of local sites around the UK.

 

 

Daniel Osmond – Scientific Officer

Daniel is an MSci Zoology Student at the University of Exeter. During his degree program and ongoing work in Wotton’s research group he has been spurred on to use ecological knowledge to help us to protect threatened ecosystems.

 

 

You can find out more about the team through this link.


Topics discussed

The Blue Clipper: Photo credit – Jamie Haigh
  • Background of Sail Against Plastic
  • Where did the expedition go?
  • How do you do plastic research on a ship that’s not designed for it?
  • How to analyse the microplastics samples that were found
  • Building the team
  • Multidisciplinary expeditions – Science, art, film-making all in one trip.
  • How the expedition was funded
  • Citizen Science projects
  • How do you make the best of 24 hours daylight for research?

 


 

Resources

The Sail Against Plastic expedition film can be viewed above.

Sail Against Plastic Blog

Expedition Photography

Sail Against Plastic Twitter

Sail Against Plastic Facebook


This was Ethan’s final episode (for now, at least), if you want to follow his adventures, take a look at the Trail and Errors website.

Hosted by Ethan Wrigglesworth and Ben Toulson

Episode and show notes produced by Ben Toulson and Ethan Wrigglesworth

Check out other episodes of the podcast here.

You can subscribe on most podcast apps, if you’re feeling kind please leave us a review!

#ExeterMarine is an interdisciplinary group of marine related researchers with capabilities across the scientific, medical, engineering, humanities and social science fields. If you are interested in working with our researchers or students, contact Michael Hanley or visit our website!

 

A Day in the Life of an Arctic Field Scientist

Words by Clara Nielson, University of Exeter PhD Student

A day in the life of an Arctic field scientist

Hello! My name is Clara Nielson and I am a PhD student from Exeter University studying the impacts of global change on marine species in Dr Ceri Lewis’s lab. We are currently at 78 degrees north in a place called Ny Alesund, in Svalbard at the UK NERC Arctic Station for AXA XL Arctic Live with Encounter Edu. We are here to both conduct important research but also to communicate what we are doing to schools around the world.

Clara Nielson and Dr Ceri Lewis in the Arctic

Pulling open the curtains to a view of snow covered mountains and glaciers on the edge of a fjord will guarantee to put a smile on your face and put you in a good mood for the rest of the day. Our usual day starts waking up in the base and heading to the canteen for breakfast. Ny Alesund is home to a range of international scientists all coming and going at different parts of the year and the canteen is the communal hub where everyone can share a meal, and a story or two, before heading off for the day.

Arctic View

Weather permitting (we have had a few base days where we are unable to get out onto the boat due to high winds) we usually spend the day out on Teisten, the research boat, collecting water samples from different parts and depths of the fjord. We are out here to monitor the pH and carbonate chemistry of the seawater, as part of a global ocean acidification project. Ocean acidification is the change in ocean chemistry as a result of increasing atmospheric carbon dioxide levels and this process is happening fastest in the Arctic. The samples we are taking will help fill in the global picture of just how fast this process is happening. We are also sampling for any microplastics that may be in the seawater as the Arctic is also thought to be a hotspot for microplastic accumulation due to ocean currents. We were here last year doing the same sampling, and we did find some plastic, so it will be really interesting to compare our data and that of other long term projects to see how the Arctic is changing. Today it was -7oC, which is pretty cold but add to that the wind chill and we were out in temperatures of about -25 oC. This made sampling slightly trickier than at home as the seawater and all of our sampling gear was freezing pretty quickly, not to mention how cold my hands were getting! Its hard to describe how that sort of temperature feels but basically it’s painfully cold. Thankfully team work, biscuits and a kettle kept everything working!

 

The cold is soon forgotten as once the days sampling is over we can head back to our heated base but the hot shower has to wait just a little longer! First, we need to make sure all our kit is cleaned ready to go again tomorrow and the samples are stored away correctly.

After dinner we spend a bit of time looking through samples and manage to show our Arctic base manager Nick his first sea angel! This is a type of zooplankton called a pteropod, which flapped around our petridish and made this seasoned field man swoon at its beauty.

Frozen equipment is a daily challenge.

Before bed I spend a bit of time with Jamie, from Encountered Edu, going through what I shall be doing tomorrow as it is my day to take part in Arctic Live. Arctic Live is the other important reason we are all here, as alongside our research we are taking part in a live streaming educational lessons and question and answer sessions where we speak to school children live from around the world about our experiences and answer their questions about the Arctic and what it is like to work here. I am looking forward to hearing what questions the children have come up with! Its really cool that we can share what we are doing live from this amazing place, I hope it inspires them.

It is time for bed once we are all set for tomorrow, the 24-hour daylight is making it slightly harder to get to sleep as you feel like it should be the middle of the afternoon, not 11pm but it is important that we all get a good rest.

I feel very privileged to be out in such a stunningly beautiful place and it is without doubt the best place I have ever done field work in. The wildlife here is amazing too, today we saw a Minke whale from the end of the boat which was incredible. The Arctic is at the forefront of climate change where the impacts are being felt first and fastest and is also a hotspot for plastic pollution so it is probably the most important place to be doing this kind of science right now.

All images a courtesy of Jamie Buchanan-Dunlop of Encounter Edu.

#ExeterMarine is an interdisciplinary group of marine related researchers with capabilities across the scientific, biological,  medical, engineering, humanities and social science fields.

Find us on: Facebook : Twitter : Instagram : LinkedIn  

If you are interested in working with our researchers or students, contact Michael Hanley or visit our website!

 

Scientists at Sea Podcast – Seals and Salmon Farms, with Lizzie Daly

Show Notes

Disclaimer

While we are very supportive of our alumni, we need to emphasise that the views expressed in this podcast are not necessarily representative of the University of Exeter and the guest’s views are their own.


In this episode, we’re joined by one of our alumni, Lizzie Daly. Lizzie is a wildlife presenter, filmmaker, and researcher whose work regularly focuses on human-wildlife conflict. In this instance, Lizzie was inspired to take action after reading about seals being shot in Scotland in order to protect fish stocks.

 

After months of research and frequent trips to Scotland, Lizzie released a film addressing the issue titled: ‘Silent Slaughter – The Shooting of Scotland’s Seals’. You can watch this below. The film was entirely self-funded and free to watch.

 


 

Silent Slaughter – The Shooting of Scotland’s Seals


“I’d like to see more conservation stories told in the reality of what they are”  


About our guest: Lizzie Daly

Lizzie filming an elephant translocation in Kenya.

Lizzie only graduated from our Penryn Campus in 2016, but has already achieved an awful lot as a wildlife presenter, filmmaker and researcher. Starting out as a wildlife expert on CBeebies, Lizzie is now a presenter for BBC Earth Unplugged and has featured on the BBC2 wildlife quiz show, Curious Creatures. After completing an MSc at Bristol University, Lizzie also spent two months in Kenya documenting human-elephant conflict management whilst producing, directing and presenting a video series that you can watch on her Youtube channel. In addition to this she has also become an Ocean Ambassador for the Marine Conservation Society, an ambassador for the Jane Goodall Institute UK, she’s the Female Ambassador for Fjällräven and an Academic Teaching and Outreach Fellow at Swansea University.

 

 


Topics discussed

The role and importance of aquaculture in Scotland and attitudes of local people.

The pros and cons of alternative seal deterrents including:

  • Acoustic deterrent devices (ADDs).
  • Econets.
  • Double nets.

Seal shooting licences.

Salmon farming industry attitudes towards both seals and activism.

The challenges of filming controversial topics.

Telling important stories online/social media.


Ending on a positive note – What has happened since the release of Silent Slaughter?


Resources:

Lizzie’s Website

Lizzie’s Youtube channel

Lizzie’s Instagram

Lizzie’s Facebook Page

Lizzie’s Twitter

Bonus! Watch Lizzie presenting back in her student days (with our host, Ethan Wrigglesworth)


Hosted by Ethan Wrigglesworth

Episode and show notes produced by Ben Toulson and Ethan Wrigglesworth

Check out other episodes of the podcast here.

You can subscribe on most podcast apps, if you’re feeling kind please leave us a review!

#ExeterMarine is an interdisciplinary group of marine related researchers with capabilities across the scientific, medical, engineering, humanities and social science fields. If you are interested in working with our researchers or students, contact Michael Hanley or visit our website!

Scientists at Sea Podcast – Microplastics and Sharks with Kristian Parton

Show Notes – Mircoplastics and Sharks with Kristian Parton

 

Of all the pollutants impacting the environment, plastics are perhaps among the most talked about and campaigned against in recent years. We’ve had members of Sail Against Plastic on the podcast before to discuss the presence of plastics in some of the most remote areas of ocean, but in this episode we take a look into how some plastics penetrate further – the invasion of food web ecology by microplastics.

 


 

Kristian Parton 

As an undergraduate with the University of Exeter, Kristian developed a strong interest in

marine conservation, specifically elasmobranch (shark and ray) ecology and biology. After being involved in several shark conservation projects around the world, from Mozambique to the Philippines, Kristian went on to start his current research as a Master by Research post-graduate investigating plastic ingestion in several North-East Atlantic shark species; Tope, Dogfish, Smooth-hound, Bull huss and Spurdog. The project aims to investigate whether diet and foraging behaviour has an influence on the consumption of micro plastic, and its accumulation within the digestive tracts of these species.

 


 

Is it a dog? Is it a fish? No, it’s a shark…

Kristian’s research has a broad focus on several small to moderate shark species found in the waters of the UK and North-East Atlantic, most of which are unknown to the wider public – all too often over-shadowed by larger, more cinematic species. The most common species that Kristian works with is the Lesser Spotted Dogfish…or the Small Spotted Catshark…or some may say the Murgey (Scyliorhinus canicula). Whatever you wish to call it, this species exhibit beautiful spotted patterns on a pale body, and are a delight to see in the wild for those lucky enough to spot them among the kelp beds. Though regularly caught in numerous trawl and gill net fisheries, they are not often eaten among Cornwall, though are put to use as bait while Kristian claims a few from local fishermen for science. The exact status of their stocks is unknown though they are thought to be fairly numerous and common. Unfortunately, this is not the case for many of the other sharks that Kristian samples.

For more information on the fisheries of S. caniculla, and other shark and/or marine species click here.

 


 

Fake Plastic Seas 

With so much plastic floating around, there is no surprise that it finds its way into the food webs of marine ecosystems. Our news feeds are battered by reports of stranded marine animals whose stomachs are littered with plastics, clips of animals mistaking plastic bags for their primary food sources, and new studies quantifying the presence of micro-plastics in almost all areas of nature. The problem is more than just full bellies of unnatural content, which in of itself is a great concern. Studies have shown that plastics may contain chemical traces that can disrupt systems by which organisms regulate and produce hormones, leading to further and exacerbated biological implications.

To find out more, have a listen to the episode.

 


 

If you wish to keep up to date with Kris’s research, give his ever lively twitter a follow @Kjparton

If you want to learn more about LAMAVE – the organisation with which Kristian helped with whale shark research in the Philippines – you can read more here: https://www.lamave.org

You can also view Kristian’s award-winning film here: The Southern Continent: A Journey to Antarctica

 


 

Hosted by Ethan Wrigglesworth

Episode and show notes produced by Ben Toulson and Ethan Wrigglesworth

Check out other episodes of the podcast here.

You can subscribe on most podcast apps, if you’re feeling kind please leave us a review!

#ExeterMarine is an interdisciplinary group of marine related researchers with capabilities across the scientific, medical, engineering, humanities and social science fields. If you are interested in working with our researchers or students, contact Michael Hanley or visit our website!

Scientists at Sea Podcast – Climate Change, Turtles, and Bivalves

Show Notes

In this episode Ethan and Ben discuss the latest Climate Change Report released by the IPCC (Intergovernmental Panel on Climate Change), with Professor Annette Broderick and Dr. Paul Butler. As well as covering key points of the report, Annette and Paul tell us about how climate change is a significant aspect of their current research.

 

About our guests:

Annette Broderick – Professor of Marine Conservation

Profile

Annette’s research investigates the exploitation of marine vertebrates, with a primary focus on marine turtles. The thermal environment is particularly important for turtles, so the potential effects of climate change could have a big impact on these populations. Listen to the episode to find out more.

If you’re interested in turtle conservation, Annette runs a long-term field study in northern Cyprus which takes on volunteers each year, you can find out more here

 

“The most biodiverse habitats in the world that we have are on the reefs, we’re going to lost those systems undoubtedly I think by 2040/2050 we’ll be talking about corals reefs and how beautiful they were.”

 

 

 

Dr. Paul Butler – Honorary Senior Research Fellow

Profile

Paul’s research is in the field of sclerochronology, focusing in particular on the use of shells from long-lived bivalve molluscs to study the history of the marine environment. Essentially, these molluscs deposit annual increments in their shells (like rings on a tree stump). If a bivalve shell has a known date of death, a timeline of environmental variables can be investigated from that one shell, including seawater temperature and the origin of water masses. This can be of particular interest when studying climate change. Have a listen to the episode and take a look at Paul’s profile for more information.

 

 

Want to know more about sclerochronology and some intriguing clam facts? Sarah Holmes, PhD Researcher, wrote an excellent blog about this a few months ago, you can read it in full here.

 

 

Arctica islandica, one of Paul’s study species
Photo – Hans Hillewaert

 

 

Our longest chronology, which goes for 1300 years, is for waters of the north coast of Iceland… essentially we’ve got a temperature record… over the past 1000 years it shows a declining temperature up to about 150 years ago and then it shows a rapid increase

 

 

What is the IPCC?

The IPCC was established 30 years ago by the United Nations Environment Programme (UNEP) and the World Meteorological Organization (WMO) to provide a scientific view of climate change and its potential environmental and socio-economic impacts.

What is the IPCC Climate Change Report?

In December 2015 the Paris climate agreement was signed whereupon countries agreed that they would keep global temperatures “well below two degrees C above pre-industrial levels and to pursue efforts to limit the temperature increase even further to 1.5 degrees C”. The UN asked the IPCC to produce a special report to assess the feasibility of keeping global temperature rises to a maximum of 1.5C.

Scientists are nominated by governments and international institutions. In this particular report there we 91 lead authors from 40 countries which reviewed 6,000 references. This work is unpaid.

Where do we stand right now?

Currently we are on track to reach 1.5C warming between 2030 and 2052, and 3C by 2100.

If we hit just 2C warming, this could have serious impacts, here are just a handful:

  • Almost all coral reefs will be destroyed.
  • The arctic will have summers with no ice at least once a decade.
  • Huge numbers of animals and plants will become extinct.
  • Low-lying coastal regions, such as Bangladesh, will suffer from sea level rise.

 

“One of the key messages that comes out very strongly from this report is that we are already seeing the consequences of 1°C of global warming through more extreme weather, rising sea levels and diminishing Arctic sea ice, among other changes,” said Panmao Zhai, Co-Chair of IPCC Working Group I. – IPCC Press Release

 

There has been extensive coral bleaching already due to sea temperature rise
Photo – Acropora

Can we avoid this?

Yes, but we have just 12 years to turn it around and serious change is required. You can read more about that here.

The report finds that limiting global warming to 1.5°C would require “rapid and far-reaching” transitions in land, energy, industry, buildings, transport, and cities. Global net human-caused emissions of carbon dioxide (CO2) would need to fall by about 45 percent from 2010 levels by 2030, reaching ‘net zero’ around 2050. This means that any remaining emissions would need to be balanced by removing CO2 from the air.

“Limiting warming to 1.5°C is possible within the laws of chemistry and physics but doing so would require unprecedented changes,” said Jim Skea, Co-Chair of IPCC Working Group III. – IPCC Press Release

You can read the IPCC Climate Change Press Release in full here.

 

Hosted by Ethan Wrigglesworth

Episode and show notes produced by Ben Toulson

#ExeterMarine is an interdisciplinary group of marine related researchers with capabilities across the scientific, medical, engineering, humanities and social science fields. If you are interested in working with our researchers or students, contact Michael Hanley or visit our website!