MBA Experiments Highlight Reponses to Climate-Driven Thermal Regimes in Limpets

Posted on Jan 19, 2021

Sister species respond differently to climate change

MBA mesocosm experiments for the MRes degree programme have highlighted the different physiological and behavioural responses to climate-driven thermal regimes on two sister species of limpet from different biogeographic origins.

Two species of limpet

The paper, co-authored by MBA group leader Nova Mieszkowska and MBA MRes Student Joe Redfern, is entitled "Handling the heat: Responses of two congeneric limpet species to environmental temperature differences". Published in the Journal of Experimental Marine Biology and Ecology, the paper has a 50-day free access policy and can be accessed here: https://authors.elsevier.com/c/1cRIa51aUd6cc

Sharks under pressure: Deoxygenating deep-sea drives sharks to the surface

Posted on Jan 19, 2021

Climate-driven ocean deoxygenation renders the ocean’s most wide-ranging shark more vulnerable to fishing

Research carried out by scientists at the Marine Biological Association (MBA) and institutes in Portugal and Spain, is the first to test whether expanding oxygen minimum zones (OMZs) in the oceans push sharks closer to the surface, making them more susceptible to capture by fisheries.

Climate-driven changes in the ocean are leading to reduced amounts of dissolved oxygen in seawater, known as ocean deoxygenation. It causes permanent OMZs that exist across the oceans, typically at depths of around 200-800 metres, to expand both horizontally and vertically. Ocean deoxygenation is likely to have important effects on large, high-oxygen demand fish such as pelagic sharks.

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Blue sharks are...

Free Online Event - South Devon: Climate Change Hotspot talk by Nova Mieszkowska

Posted on Jan 18, 2021

South Devon: Climate Change Hotspot by Nova Mieszkowska Marine Biological Association, Plymouth and University of Liverpool

Tuesday 19 January 2021 1930 h via Zoom.

No admission charge, but you must apply for sign-in details by 18th Jan at www.shoresofsouthdevon.org.uk/contact-form/

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Global climate change has been driving changes in the geographic distributions of marine species around the world. The UK is located in a transition zone between colder boreal waters to the north and warmer lusitanian waters to the south, and many rocky shore species reach their distributional limits in this area. These range limits are changing in response to climate change, and the rates are some of the fastest in any natural system. Invasive species are also increasing in prevalence and spread in the UK. Given these changes, what are we likely to...

MBA Annual Report 2019-20

Posted on Jan 18, 2021

We're delighted to present our latest MBA Annual Report, featuring our highlights from April 2019 to March 2020. Find out what activities our members were involved in, the learning and engagement opportunities we provided, how we represented marine biology in policy and read more about our research.

View the Annual Report 2019-20

Annual Report 2019-20

CPR data contribute to Scotland's latest Marine Assessment

Posted on Jan 8, 2021

Scotland’s latest Marine Assessment reveals significant changes are taking place at the heart of the marine food web, with potential for impacts on the wider pelagic environment.

For the first time, a team of researchers has published an assessment based on all available plankton time-series data from Scottish waters to investigate the current state of the plankton community, and therefore ocean health, and to identify if it has changed over time.

Researchers from Marine Scotland Science, Scottish Environment Protection Agency, the Scottish Association for Marine Science and the Marine Biological Association worked together to combine available plankton data in an attempt to understand conditions in the pelagic environment. Plankton form the very base of the marine foodweb, and are excellent indicators of marine health. This combined approach...

SciArt Competition

Posted on Dec 15, 2020

Fancy getting stuck into something creative over the holidays? Enter the SciArt Competition!

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SciArt Competition

chnical Exe

Categories Aquarium Inspired by… the old (MBA aquarium) and new (National Marine Aquarium, and MBA Seawater Hall). Micro Inspired by… anything microscopic found in the marine environment, particularly subjects being researched at the MBA (e.g. algae, fungi, plankton!) Mega Inspired by … anything big found in the marine environment, particularly subjects being researched at the MBA (e.g. pelagic sharks, rays). # UNDecade Inspired by … the UN Decade of Ocean Science, kicking off in 2021. Wild card Inspired by…...

New research sheds light on early mechanisms driving diatom bloom formation

Posted on Dec 14, 2020

Marine diatoms under the light microscope
Scientists describe a new role for calcium ion signalling in eukaryotes, for phosphate sensing, for the first time.

MBA researchers Katherine Helliwell, Glen Wheeler and Colin Brownlee in collaboration with scientists at Plymouth Marine Laboratory (PML) and the University of Warwick have shed light on how diatoms (a type of eukaryotic algae) sense the availability of phosphorus, a vital macronutrient which controls diatom growth and productivity in the oceans. The research, which has been published in the journal Current Biology [1], demonstrated a new role for calcium ion (Ca 2+ ) signalling in eukaryotes, for phosphate sensing, which has not previously been described.