Faculty Opinions recommendation of Global imprint of climate change on marine life

Author(s):  
Philip Munday
Keyword(s):  
2020 ◽  
Vol 8 ◽  
Author(s):  
Michael R. Heath ◽  
Deborah Benkort ◽  
Andrew S. Brierley ◽  
Ute Daewel ◽  
Richard Hofmeister ◽  
...  

Eos ◽  
2016 ◽  
Vol 97 ◽  
Author(s):  
Lisa Sheffield Guy ◽  
Sue Moore ◽  
Phyllis Stabeno

Climate change has reconfigured Arctic ecosystems. A 5-year project focuses on the relationships among oceanographic conditions and the animals and other life-forms in this region.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Lisandro Benedetti-Cecchi

AbstractUnderstanding how marine heatwaves (MHWs) unfold in space and time under anthropogenic climate change is key to anticipate future impacts on ecosystems and society. Yet, our knowledge of the spatiotemporal dynamics of MHWs is very limited. Here, I combine network theory with topological data analysis and event synchronization to high-resolution satellite data and to a set of Earth System Model simulations to reveal the dynamical organization of complex MHW networks. The analysis reveals that MHWs have already crossed a tipping point separating highly synchronized preindustrial MHWs from the more extreme, but less coherent warming events we experience today. This loose spatiotemporal organization persists under a reduced RCP 2.6 emission scenario, whereas a second abrupt transition towards a permanent state of highly synchronized MHWs is foreseen by 2075 under a business-as-usual RCP 8.5 scenario. These results highlight the risks of abrupt ocean transitions, which may dramatically affect marine life and humanity by eroding valuable time for adaptation to climate change.


2013 ◽  
Vol 3 (10) ◽  
pp. 919-925 ◽  
Author(s):  
Elvira S. Poloczanska ◽  
Christopher J. Brown ◽  
William J. Sydeman ◽  
Wolfgang Kiessling ◽  
David S. Schoeman ◽  
...  
Keyword(s):  

2021 ◽  
Author(s):  
Christina C. Roggatz ◽  
Christopher J. Skinner

<p>Ocean acidification is often referred to as climate change’s hidden evil twin. As the world’s oceans partly absorb the carbon dioxide that humans are pumping into the planet’s atmosphere, the oceans’ pH decreases, making the water more acidic. This comes with a range of negative consequences, one of them being the recently uncovered impairment of the sense of smell of marine animals like fishes and crabs.</p><p>Awareness of ocean acidification, including its impacts on marine life, however, is low amongst the public. It is something that is viewed as remote to peoples’ lives, happening a long distance away and not for a long time into the future. It is important we take action now as a society to curb climate change and reduce the potential impacts of ocean acidification. Raising awareness and helping to make an emotional connection to the issue is a first step on this journey.</p><p>In <em>Crabby’s Reef</em> we use the power of gaming to enable players to experience the impact of this invisible and abstract process of ocean acidification. Inspired by classic arcade games, it puts players into the metaphorical shoes of Crabby, the crab. They navigate daily life on the ocean floor, guiding Crabby through the maze-like reef, seeking food and avoiding predatory octopuses who would make Crabby dinner. With each new level, you are transported to a more acidic future, your senses dampened by blurring the screen, reflecting Crabby’s loss of ability to smell the food.</p><p>With life getting harder, we ask how long can you survive?</p><p>Play the game here - <em>https://seriousgeo.games/activities/crabbysreef/</em></p>


Author(s):  
A Butler ◽  
E Poloczanska ◽  
T Okey ◽  
A Hobday ◽  
D Milton ◽  
...  
Keyword(s):  

2016 ◽  
Vol 28 (8) ◽  
pp. 1049 ◽  
Author(s):  
Mary Hagedorn ◽  
Virginia L. Carter

Coral reefs are some of the oldest, most diverse and valuable ecosystems on Earth because they can support one-quarter of all marine life in our oceans. Despite their importance, the world’s coral reefs continue to be degraded at unprecedented rates by local and global threats that are warming and creating a more acidic ocean. This paper explores the reproductive challenges of coral for ex situ conservation, using IVF and cryopreservation, and our practical biobanking methods. Coral present challenges for cryopreservation because their reproductive period is often limited to a few nights yearly, they are mostly hermaphrodites with diverse modes of reproduction, including asexual reproduction (i.e. fragmentation and parthenogenesis) and sexual reproduction (i.e. self- and cross-fertilisation) and they express physiological toxins that can inhibit cryopreservation. We have banked spermatozoa from 12 coral species using the same field-hardy methods and have created new coral with thawed spermatozoa. In addition, we describe the cryopreservation of coral symbionts, whose physiology only permits the highest success seasonally. As part of a multidisciplinary conservation strategy, these collections may provide a major hedge against extinction for corals facing the damaging effects of climate change and loss of genetic diversity, and promise to help offset threats to our reefs worldwide.


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