Changes to the flow of the Labrador Current along the coast of Newfoundland and Labrador to Nova Scotia are leading to sudden warmings or drops in the oxygen levels of the waters in several regions including the St. Lawrence Gulf and Estuary. This change has dire consequences for marine ecosystems and fisheries. To better predict what could happen in the future, researchers set out to answer the question: what controls the pathway of the Labrador Current?
Bright orange ocean water being tested by B.C. scientists
Scientists are taking a close look at a bright orange algae bloom found in the ocean off Vancouver Island and the Sunshine Coast. Svetlana Esenkulova, a biologist with Pacific Salmon Foundation, is trying to determine if the phytoplankton bloom is negatively impacting salmon. “Noctiluca blooms can disrupt the overall balance of marine ecosystems as they ‘steal’ food from zooplankton,” she said. Under a microscope, the organisms "look like giant watermelons with pigtails and they wave those pigtails," said Esenkulova, who has a sample of the orange ocean water in her kitchen. When the water is cold, she can see the organisms trying to catch food.
Unchecked climate change puts Canada’s West Coast in hot water
Last year was the hottest on record for the ocean, an upward trend only expected to continue as it wreaks havoc on coastal communities and spurs irreversible losses to marine ecosystems. Ocean warming has cascading effects, melting polar ice and causing sea-level rise, marine heat waves and ocean acidification, the United Nations’ panel of climate experts made clear on Monday. Sea-level rise has doubled in the last three decades, reaching a record high in 2021, the Intergovernmental Panel on Climate Change (IPCC) reported. Rising seas, coupled with more extreme weather, are setting the stage for a perfect storm of flooding for coastal communities.
What is blue carbon and why is it vital for mitigating Canada's carbon emissions?
Marlow Pellatt spent time on Vancouver Island, taking samples of soil from deep underground and wading through water to understand the biodiversity in the area. To an onlooker, it may seem like he’s playing in mud, but he’s actually researching how important coastal ecosystems are in Canada’s fight against climate change. Pellatt, a coastal ecologist with Parks Canada, led a team that was part of an international effort to study and preserve coastal systems this year. The joint initiative involves Canada, the U.S. and Mexico to study "blue carbon" -- the carbon stored in marine ecosystems.