Climate Change

Oceans have always done us a favor, absorbing carbon dioxide in the atmosphere. But now rising greenhouse gases are warming the ocean and changing its chemistry. All of this is putting marine species and ecosystems at risk, threatening food security and the livelihoods of people along its shores. In this episode of Unfold, we’ll take a deep dive into the ocean to examine the effects of climate change.

In this episode:

Red abalone mothers from California’s North Coast give their offspring an energy boost when they’re born that helps them better withstand ocean acidification compared to their captive, farmed counterparts, according to a study from the Bodega Marine Laboratory at the University of California, Davis.

Dense canopies of kelp are a well-known and much-loved feature of California’s coastal waters. Kelp forests create subtidal havens for marine life like red and white abalone, urchins, sea stars, and rockfish.

Highly prized as delicacies, oysters are farmed all over the world. In the US, they account for the highest volume of marine shellfish production, amounting to a total of 36.5 million pounds in 2018. However, as seawater temperatures rise due to global warming, oyster aquaculture will face obstacles and will likely need to reshape its practices to continue its success.

Scientists are mobilizing to aid California’s crashing kelp forests, which have been decimated due to a combination of stressors, including warming oceans, the disappearance of sea stars and an associated population explosion of purple urchins.

Bodega Marine Lab undergraduate students Michael Brito and Kenzie Pollard just won first prize for their short film, submitted to the 2020 UC Davis Research Rockstars Undergrad Slam Video Contest! Michael and Kenzie made their video as part of their independent research project last summer during the Coastal Marine Research (BIS 124) class at the laboratory, working under the guidance of Eric Sanford.

The blob went unnoticed at first. In the summer of 2013, a high-pressure ridge settled over a Texas-size area in the northern Pacific, pushing the sky down over the ocean like an invisible lid. The winds died down, and the water became weirdly calm. Without waves and wind to break up the surface and dissipate heat, warmth from the sun accumulated in the water, eventually raising the temperature by 5 degrees Fahrenheit — a huge spike for the ocean.