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

Posted on Feb 1, 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.


Blue sharks are...

MSCC Statement on the Ocean and Climate Change

Posted on Feb 1, 2021

The UK Marine Science Co-ordination Committee (MSCC), of which the Marine Biological Association (MBA) is a member, is today releasing a Statement: "The Ocean in a Changing Climate". Given the criticality of climate change and the role of the ocean within the climate system, this Statement outlines the role of the UK in marine science research as well as the impacts of marine climate change.

MSCC Statement

The Statement draws out a number of important points, such as:

Mean sea level rise of 12-16 cm since 1900 and predictions sea level rise will accelerate over the next eighty years Shift in marine species distributions and degradation of marine ecosystems due to warming and a change in ocean chemistry Next steps - the UK is co-hosting COP26 and hosting the G7 Presidency in 2021, it is also the start of the UN Decade of Ocean Science for Sustainable Development...

SciArt Competition Winners and Runners-Up

Posted on Jan 29, 2021

Over the holidays the Marine Biological Association (MBA) hosted its first SciArt competition, asking MBA members and staff, as well as Ocean Conservation Trust staff, to submit their entries into one of five marine-themed categories.

We received over 100 entries, with a huge diversity of art types and subjects. Thank you to all who entered - you truly did inspire us with your work. A well-deserved thank you also goes to our judges, Professor Dan Laffoley, Debby Mason, Paul Naylor, Georgie Bull, and Olly Reed, who had the very difficult task of scoring the entries and deciding our winners and runners-up.


aquarium_7_alix_harvey.png micro_3_gemma_brice.png mega_9_alosha.png undecade_5_charlotte_danielsson.png wildcard_22_bryony_caswell.png


aquarium_runner_up_bradley_knight.png micro_161_grazyna.png


The Marine Biologist January Edition - UN Decade of Ocean Science

Posted on Jan 27, 2021

The need to ensure a sustainable future for the oceans is one of the great missions of the next decade. The UN Decade of Ocean Science for Sustainable Development (2021-2030), a collective endeavour to fulfil that mission, kicks off this month. This is a really significant initiative which will influence research programmes, marine policy, research infrastructure planning, and citizen science around the world.

UN Decade of Ocean Science

Dr Matthew Frost, Deputy Director and Head of Policy at the Marine Biological Association (MBA), said “The Marine Biological Association is excited to contribute to the newly launched UN Decade of Ocean Science for Sustainable Development. We are involved as partners and leaders in various proposals in response to the recent UN Decade call for action in order to ensure the best marine science is available to support ocean...

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:

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


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