anoxia – Desdemona Despair

Stormwater flows into Biscayne Bay, 1 June 2024 - 18 June 2024. The flows from the Little River exceeded rates of 2000 cubic feet per second, causing very low salinity in the bay, resulting in large-scale fish kills. Graphic: Miami Waterkeeper

July 27, 2024

Record flooding yields massive fish kill in miles-long stretch of Biscayne Bay – “These events are anything but normal”

By Margaret Wong 23 July 2024 (The Cool Down) – Biscayne Bay is reeling from its fourth major fish kill in as many years, triggered by recent record flooding in South Florida. What’s happening? Torrential rains have inundated the region, causing a significant influx of freshwater into the bay, which has led to low salinity […]

Maps of near-bottom dissolved oxygen in the continental shelf waters off the United States Pacific Northwest, 1950-2021. About half of the water near the seafloor off the Pacific Northwest coast experienced low-oxygen conditions in 2021. Data from 1950 to 1980 are from the World Ocean Database32, data from 2009–2018 are from the NOAA Groundfish survey, and data from 2021 are from this study. Graphic: Barth, et al., 2024 / Nature Scientific Reports

July 5, 2024

Pacific Northwest coast suffers from low oxygen, study finds – “As we keep changing the climate, it’s going to become the norm. What’s pretty remarkable is that 50 percent of the continental shelf is going to be low oxygen.”

By Amanda Zhou 10 June 2024 (The Seattle Times) – About half of the water near the seafloor off the Pacific Northwest coast experienced low-oxygen conditions in 2021, according to a new study. And those hypoxic conditions, which are expected to become common with global warming, threaten the food web, the study found. The study […]

A sick sea lion and her pup are shown recovering from domoic acid poisoning at the Marine Mammal Care Center in San Pedro, California, on 6 July 2023. During the summer of 2023, the center cared for sea lions that were sickened by a historically bad algal bloom along California’s Coast. Photo: Yannick Peterhans / USA TODAY

July 9, 2023

“Death coming out of the ocean”: Red tide killing California sea lions, dolphins – “I have been a marine mammal veterinarian for 35 years, and this is definitely the worst in my professional lifetime”

By Amanda Lee Myers 8 July 2023 (USA TODAY) – Jalapeño the sea lion turned up on a crowded California beach in a daze, experiencing seizures and heavily pregnant. Instead of giving birth in a remote location like sea lions prefer, Jalapeño had her pup on Southern California’s Hermosa Beach on a busy Saturday, surrounded by throngs […]

A seagull walks over seaweed that washed ashore on 16 March 2023 in Fort Lauderdale, Florida. A huge mass of sargassum seaweed formed in the Atlantic Ocean and headed for the Florida coastlines and shores throughout the Gulf of Mexico. The sargassum, a naturally occurring type of macroalgae, spans more than 5,000 miles. Photo: Joe Raedle / Getty Images

April 18, 2023

Video: Sargassum seaweed hits Florida Keys beaches

By Richard Burkard 17 April 2023 (Knewz) – It sounds like a B-grade movie title: The approach of the 10-million pound blob. Yet it’s real, and it’s forcing swimmers and owners of beachfront property in Florida to take action. Knewz noted in late March that a giant mass of sargassum seaweed was spotted from space. It […]

People up for Easter sunrise services on Cocoa Beach, Florida encountered heavy seaweed, 9 April 2023. Photo: Malcolm Denemark / Florida Today

April 15, 2023

Sargassum seaweed soils Space Coast beaches at record levels in 2023 – “This year’s Sargassum bloom will likely be the largest ever recorded, with major impacts throughout the next few months”

By Jim Waymer 12 April 2023 (Florida Today) – We’re already in the weeds. All that stringy stuff that washed up on Brevard County beaches this past week is just the beginning of what scientists predict will grow into the largest-ever bloom of Sargassum seaweed ever recorded. Sargassum, which the Caribbean Sea delivers seasonally to the Gulf Stream […]

This image based on satellite photos shows the massive belt of sargassum seaweed blooming across the Atlantic Ocean and drifting onto beaches in Florida and the Caribbean in February 2023. Graphic: Chuanmin Hu / University of South Florida

March 30, 2023

Record-breaking algae bloom takes aim at Florida beaches – “This year could be the biggest year yet”

By Dinah Voyles Pulver 14 March 2023 (USA TODAY) – Beachgoers in Florida and the Caribbean could be greeted by heavy blankets of smelly seaweed in the weeks ahead as a 5,000-mile swath of sargassum drifts westward and piles onto white sandy beaches. Sargassum, a naturally occurring type of macroalgae, has grown at an alarming rate this winter. The […]

Ducks swim through an algae bloom in Santuit Pond in Cape Cod, Massachusetts, in July 2018. Photo: Steve Heaslip / The Cape Cod Times / Associated Press

January 2, 2023

A toxic stew on cape cod: Human waste and warming water

By Christopher Flavelle 1 January 2023 MASHPEE, Massachusetts (The New York Times) – Ashley K. Fisher walked to the edge of the boat, pulled on a pair of thick black waders, and jumped into the river to search for the dead. She soon found them: the encrusted remains of ribbed mussels, choked in gray-black goo […]

Number of Western Monarch butterflies (left) and butterfly surveys (right), 1997-2021. In the western United States, the number of individual butterflies has been steadily decreasing over the past four decades, at a rate of around 1.6% every year, according to a March 2021 study in the journal Science. The iconic Monarch butterfly is one of the species in trouble. Warmer autumn temperatures, an effect of climate change, may be interfering with the butterflies’ hibernation-like period known as diapause. So rather than slowing down ahead of winter, the insects are staying awake longer, expending more energy, and eventually starving to death. In July 2022, the migratory monarch was added to the IUCN’s global endangered species list. Graphic: Catherine Tai / Reuters

December 10, 2022

The collapse of insects – “They’re the fabric tethering together every freshwater and terrestrial ecosystem across the planet”

By Julia Janicki, Gloria Dickie, Simon Scarr and Jitesh Chowdhury 6 December 2022 (Reuters) – As a boy in the 1960s, David Wagner would run around his family’s Missouri farm with a glass jar clutched in his hand, scooping flickering fireflies out of the sky. “We could fill it up and put it by our […]

In this image taken from footage provided by the RU-RTR Russian television on Sunday, 4 December 2022, journalists and Interdistrict Environmental Prosecutor’s Office employees walk near the bodies of dead seals on shore of the Caspian Sea, Dagestan. A top Russian environmental official said Monday that the thousands of dead seals that washed up on Russia’s Caspian Sea coast likely died from oxygen deprivation. Photo: RU-RTR Russian Television / AP

December 5, 2022

Russia: Mass seal death likely due to oxygen deprivation

MOSCOW, 5 December 2022 (AP) – A top Russian environmental official said Monday that the thousands of dead seals that washed up on Russia’s Caspian Sea coast likely died from oxygen deprivation. Officials in the republic of Dagestan, which has a long coastline on the world’s largest inland body of water, said this week that […]

Aerial view of apparent red tide and other phytoplankton species in the water near Naples and Sanibel, Florida on 13 November 2022. According to the Florida Fish and Wildlife Conservation Commission, beaches from Sarasota to Port Charlotte varied between low, medium, and high levels of red tide. Because Hurricane Ian brought so much rain to Florida in October, scientists on the coast closely monitored water quality to see if the storm had any impacts. Photo: Ralph Arwood / Calusa Waterkeeper

November 20, 2022

Photos show toxic algae blooms plaguing southwest Florida waters – Runoff from Hurricane Ian suspected

By Dylan Abad 14 November 2022 TAMPA, Florida (WFLA) – Aerial photos revealed massive plumes of red tide stretching along much of southwest Florida’s coast days after Tropical Storm Nicole passed over the state. Photos released by Calusa Waterkeeper showed a deep reddish-brown discoloration of the water near Naples and Sanibel due to the presence […]