Dissolving Dungeness?

By Jim Steele, Published in Pacifica Tribune March 8, 2020 What’s Natural Like New England’s lobsters, savory Dungeness crabs are San Francisco and the northwest’s iconic seafood. While fisheries around the world have declined from overexploitation, Dungeness crabs have been sustainable despite intensive harvesting over the past 40 years. Their resilience partly relies on mature…

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Dungeness Crabs Redux

Guest Post by Willis Eschenbach Well, after my last post, The Solution To Dissolution, I thought I was done with the Dungeness crab question. And I was happy to be done with those chilly crustaceans. Writing that post brought back memories of how cold the fishery is. I remember leaving out from Eureka harbor at…

The Solution To Dissolution

Guest Post by Willis Eschenbach The British tabloid “The Guardian” has a new scare story about what is wrongly called “ocean acidification”. It opens as follows: Sounds like the end of times, right? So let me start with a simple fact. The ocean is NOT acidic. Nor will it ever become acidic, except in a…

Ocean acidification a big problem — but not for coral reef fish behavior

A comprehensive multi-year project challenges previous findings Norwegian University of Science and Technology A three-year, comprehensive study of the effects of ocean acidification challenges previous reports that a more acidic ocean will negatively affect coral reef fish behaviour. The study, conducted by an international coalition led by scientists from Australia and Norway, showed that coral…

Marine biology: Acidified oceans may corrode shark scales

Prolonged exposure to high carbon dioxide (acidified) seawater may corrode tooth-like scales (denticles) covering the skin of puffadder shysharks, a study in Scientific Reports suggests. As ocean CO2 concentrations increase due to human activity, oceans are becoming more acidic, with potential implications for marine wildlife. Although the effects of acidified water have been studied in…

Tiny shells reveal waters off California are acidifying twice as fast as the global ocean

NOAA Headquarters In first-of-its-kind research, NOAA scientists and academic partners used 100 years of microscopic shells to show that the coastal waters off California are acidifying twice as fast as the global ocean average — with the seafood supply in the crosshairs. California coastal waters contain some of our nation’s more economically valuable fisheries, including…

The Total Myth of Ocean Acidification: Science! Edition

Guest myth-busting by David Middleton From the American Association of Science of America [1]… Ocean acidification could boost shell growth in snails and sea urchins By Katie Camero Jul. 23, 2019 , 2:00 PM The world’s oceans are acidifying rapidly as they soak up massive amounts of the carbon dioxide (CO2) released from burning fossil…

CO2 and ocean chemistry

by Dr. Daniele Mazza Oceans cover about 71% of the earth surface, but their influence on climate change is not only due to high heat capacity of water , not only to the ocean’s water circulation, but to a fact which is widely underestimated : the pH (acidity level) of sea-water is substantially alkaline, ranging…

Ocean Acidification Background Context

By Rud Istvan, This short post is drawn from the introductory section of essay Shell Games in my ebook Blowing Smoke, foreword from Prof. Judith Curry of Georgia Tech. The thrust of that essay was scientific misconduct by Fabricius concerning Milne Bay coral reefs and by PMEL concerning the Netarts Bay oyster hatchery. Both were…