World map showing sea surface temperatures as of 14 April 2023, with warm colors indicating higher temperatures. Ocean surface temperatures hit an all-time high in April 2023, breaking every record since satellite measurements began in the 1980s. Graphic: ClimateReanalyzer.org

The surface of the ocean is now so hot it’s broken every record since satellite measurements began

By Stephanie Pappas 14 April 2023 (Live Science) – Ocean surface temperatures have hit an all-time high this month, breaking every record since satellite measurements began in the 1980s. Temperatures reached a global average of 69.98 Fahrenheit (21.1 degrees Celsius) in the first days of April. The previous record of 69.9 F (21 degrees C) […]

Estimated ocean parasite populations in the Puget Sound, 1880-2019. The count per host of ocean parasites that obligately require three or more hosts declined through time, while that of two- and one-host parasites remained stable. Shown are model predictions between the years 1880 and 2019 from phase 1 analysis. Predictions are for the “average” parasite species within each group (i.e., within 1-host parasites, 2-host parasites, and 3+-host parasites) where average is defined as “the parasite species with the abundance that is closest to the average abundance of all parasite species.” Graphic: Wood, et al., 2023 / PNAS

Warming oceans have decimated marine parasites, and that’s not a good thing – “If this can happen unnoticed in an ecosystem as well studied as this one, where else might it be happening?”

By Hannah Hickey 9 January 2023 (UW News) – More than a century of preserved fish specimens offer a rare glimpse into long-term trends in parasite populations. New research from the University of Washington shows that fish parasites plummeted from 1880 to 2019, a 140-year stretch when Puget Sound — their habitat and the second […]

Annual temperatures for Alaska, 1900-2018. Alaska’s ten coldest years on record (blue dots) all occurred before 1980. Meanwhile, nine of its ten warmest years on record have occurred since 1980. Data: NASA GISS and UAF / Brian Brettschneider. Graphic: Rick Thoman / Alaska Center for Climate Assessment and Policy

Warming waters causing mass die-off of Alaska snow crabs – Total numbers down 84 percent since 2018 – “The cold-water habitat they need was virtually absent, which suggests that temperature is really the key culprit in this population decline”

20 October 2022 (CBS News) – Climate change is a prime suspect in a mass die-off of Alaska’s snow crabs, experts say, after the state took the unprecedented step of canceling their harvest this season to save the species. According to an annual survey of the Bering Sea floor carried out by the National Oceanic and Atmospheric Administration, […]

Satellite view of the Chinese fishing fleet crossing the Pacific ocean to the coast of Peru, June - September 2021. Data: NASA. Video: AP News

Great Wall of Lights: China’s sea power on Darwin’s doorstep – “It really is like the Wild West. Nobody is responsible for enforcement out there.”

By Joshua Goodman 24 September 2021 ABOARD THE OCEAN WARRIOR in the eastern Pacific Ocean (AP) – It’s 3 a.m., and after five days plying through the high seas, the Ocean Warrior is surrounded by an atoll of blazing lights that overtakes the nighttime sky. “Welcome to the party!” says third officer Filippo Marini as […]

Dead oysters in a commercial oyster bed that were killed by the record heat wave in British Columbia in 2021. When Judy Hicks headed to the beach on 2 July 2021, she discovered that many of her oysters had cracked-open shells, indicating they’d died during the heat wave. From 25 June 2021 to 1 July 2021, during B.C.’s unprecedented “heat dome” that caused hundreds of human fatalities, record-breaking temperatures are estimated to have killed more than one billion sea animals. Photo: Judy Hicks / The Tyee

BC’s shellfish farmers struggle after record heatwave decimates oysters – “I have been in this industry for 36 years, and I have never seen a mortality rate like this”

By Vaishnavi Dandekar 5 Aug 2021 (The Tyee) – Judy Hicks, a commercial shellfish grower in Okeover Inlet, B.C., started her day early on July 2. Weather forecasts had predicted that temperatures would reach the mid-20s that day — after hitting the mid-to-high 30s earlier that week — and Hicks wanted to avoid the heat. […]

Thousands of dead mussels are seen at the waterline in British Columbia, killed by the deadly heatwave 2021. More than one billion marine animals along Canada’s Pacific coast are likely to have died from the record heatwave, experts warn, highlighting the vulnerability of ecosystems unaccustomed to extreme temperatures. Photo: Christopher Harley / The Guardian

Heat dome probably killed 1 billion marine animals on Canada coast in 2021 – “A lot of species are not going to be able to keep up with the pace of change”

By Leyland Cecco 8 July 2021 TORONTO (The Guardian) – More than one billion marine animals along Canada’s Pacific coast are likely to have died from last week’s record heatwave, experts warn, highlighting the vulnerability of ecosystems unaccustomed to extreme temperatures. The “heat dome” that settled over western Canada and the north-western US for five days pushed temperatures […]

Satellite view of Tropical Storm Andres on 9 May 2021. Photo: CNN Weather

Earliest tropical storm on record develops in the eastern Pacific

By Haley Brink 9 May 2021 (CNN) – The first tropical storm of the 2021 eastern Pacific hurricane season formed off the southwest coast of Mexico on Sunday. Tropical Storm Andres is the earliest tropical storm to ever form during the satellite era in the eastern Pacific, surpassing Adrian in 2017. Andres also holds the […]

External carapace and pereopod exoskeleton of the Dungeness crab megalopae (a) in its undamaged form (b, c) and with dissolution presence ranging from mild (Stage 1; d) to severe (Stage 2; e, f) patterns showing similarity in the structural damages (g) or exposed crystals (h). Indicated is the scale of the measurements (μm). The undamaged megalopae originated from the offshore or northwards habitats characterized by low ∆Ωcal,60 vertical gradients, while the most severely affected megalopae came from the nearshore or coastal habitats with steep ∆Ωcal,60 conditions. Photo: Bednaršek, et al., 2020 / Science of The Total Environment

Dungeness crab larvae already showing effects of coastal acidification – “We found dissolution impacts to the crab larvae that were not expected to occur until much later in this century”

23 January 2020 (NOAA) – A new NOAA-funded study has documented for the first time that ocean acidification along the US Pacific Northwest coast is impacting the shells and sensory organs of some young Dungeness crab, a prized crustacean that supports the most valuable fishery on the West Coast. Analysis of samples collected during a […]

Atmospheric CO2 concentrations, 2014-2019 and projected through 2020. Forecast (red) CO2 concentrations at the Mauna Loa observatory, with previous forecasts (blue) are compared to observations (black). The forecast uncertainty range (orange) based on the SST forecast is ± 2 standard deviations. Graphic: Met Office

Australia bushfires contribute to big rise in global CO₂ levels in 2020

By Grahame Madge 24 January 2020 (Met Office) – A forecast of the atmospheric concentration of carbon-dioxide shows that 2020 will witness one of the largest annual rises in concentration since measurements began at Mauna Loa, in Hawaii, 1958. During the year the atmospheric concentration of CO₂ is expected to peak above 417 parts per […]

On 1 January 2016 and 2 January 2016, 6,540 common murre carcasses were found washed ashore near Whitter, Alaska, translating into about 8,000 bodies per mile of shoreline — one of the highest beaching rates recorded during the mass mortality event. Photo: David B. Irons

Huge “hot blob” in Pacific Ocean caused mass starvation in largest seabird die-off – “The magnitude and scale of this failure has no precedent”

By Michelle Ma 15 January 2020 (UW News) – The common murre is a self-sufficient, resilient bird. Though the seabird must eat about half of its body weight in prey each day, common murres are experts at catching the small “forage fish” they need to survive. Herring, sardines, anchovies and even juvenile salmon are no […]

Social media & sharing icons powered by UltimatelySocial