Posted on February 4, 2016 by Bob Berwyn
Rapidly warming ocean temperatures off the New England coast are affecting many marine species. Graphic courtesy NASA.
New vulnerability assessment to help guide fisheries management
Rapidly warming ocean temperatures off the coast of the Northeastern U.S. are likely to have a big impact on nearly all fish and other marine life in the region. Scientists with the National Oceanic and Atmospheric Administration carefully surveyed 82 species in a recent study, trying to identify which are the most vulnerable to global warming.
“Our method identifies specific attributes that influence marine fish and invertebrate resilience to the effects of a warming ocean and characterizes risks posed to individual species,” said Jon Hare, a fisheries oceanographer at NOAA Fisheries’ Northeast Fisheries Science Center (NEFSC) and lead author of the study. “This work will help us better account for the effects of warming waters on our fishery species in stock assessments and when developing fishery management measures.” Continue reading
Filed under: biodiversity, climate and weather, climate change, global warming, Marine biology, ocean acidification, ocean conservation | Tagged: climate change, fisheries, global warming, New England, NOAA, oceans | Leave a comment »
Posted on October 31, 2015 by Bob Berwyn
Can cod survive in the Gulf of Maine?
Management not keeping up with changing conditions
The Gulf of Maine is simply getting too warm for cod, fisheries experts said in a new study released this week that links the warming to changes in the position of the Gulf Stream and to climate oscillations in the Atlantic and the Pacific. These factors add to the steady pace of warming caused by global climate change.
Cod stocks, once the mainstay of New England’s fisheries, are on the brink of collapse, hovering at 3 to 4 percent of sustainable levels. Even strict quota limits on fishermen failed to help cod rebound, and that’s unlikely to change any time soon, the researchers reported in the journal Science. Continue reading
Filed under: biodiversity, climate and weather, Environment, global warming | Tagged: climate change, cod, fisheries, New England | Leave a comment »
Posted on February 12, 2015 by Bob Berwyn
A NOAA satellite image of Hurricane Bob, which raked the New England coast in 1991.
Historic record shows series of intense storms during eras of warmer sea surface temps
FRISCO — Climate researchers say New England’s coastal communities may need to prepare for major hurricane strikes sooner rather than later as the Atlantic Ocean continues to warm.
“We may need to begin planning for a category 3 hurricane landfall every decade or so rather than every 100 or 200 years,” said Jeff Donnelly, a scientist at Woods Hole Oceanographic Institution in Massachusetts, explaining that new research findings show that a string of giant storms pummeled the region during the first millennium, from the peak of the Roman Empire into the height of the Middle Ages. Continue reading
Filed under: climate and weather, extreme weather, global warming | Tagged: climate change, extreme weather, global warming, hurricanes, New England | Leave a comment »
Posted on June 10, 2014 by Bob Berwyn
Air quality regs pay off, as New England lakes and streams bounce back from acid rain.
It’s simple: Cleaning the air improves water quality
FRISCO — Acid rain, once the scourge of freshwater ecosystems in the eastern U.S., is waning, and the health of New England lakes and streams is improving, scientists said this week after documenting declines in sulfate concentrations in snow and rain.
The data gathered by scientists working under the auspices of the NH Agricultural Experiment Station at the University of New Hampshire College of Life Sciences and Agriculture, show that sulfate concentration in rain and snow declined by more than 40 percent in the 2000s. Sulfate concentration in lakes declined at a greater rate from 2002 to 2010 than during the 1980s or 1990s. During the 2000s, nitrate concentration in rain and snow declined by more than 50 percent and nitrate concentration declined in lakes. Continue reading
Filed under: air quality, Environment, water, water quality | Tagged: acid rain, air quality, New England, water quality | 1 Comment »
Posted on April 11, 2013 by Bob Berwyn
Shallow-diving dovekies are opportunistically eaten by deep-sea dwelling monkfish. Photo courtesy Chris Melrose, NEFSC/NOAA.
Research aims to learn more about bird-eating fish
By Summit Voice
SUMMIT COUNTY — Everybody knows it’s a dog-eat-dog world out there, but when cute little seabirds start showing up in the stomachs of bottom-dwelling, deep-sea fish, biologists get curious.
So when USGS biologist Matthew Perry heard that New England fishermen were finding tiny dovekies inside monkfish, he decided to investigate how this previously unknown link in the ocean foodchain works.
“I was studying long-tailed ducks and thought, to avoid being eaten, these birds fly 30 to 50 miles to Nantucket Sound each night and return to the ocean in the morning,” said Perry, a research wildlife biologist at the USGS Patuxtent Wildlife Research Center in Maryland. “People ask why don’t dovekies fly to Nantucket Sound at night like the long-tailed ducks to avoid goosefish? My explanation is that dovekies have small wings and can’t make the routine flight.” Continue reading
Filed under: Environment, Marine biology, ocean conservation | Tagged: dovekies, Little Auk, monkfish, Nantucket Sound, New England, oceans | Leave a comment »
Posted on November 24, 2012 by Bob Berwyn
Forest response to climate change based on complex set of factors
By Summit Voice
SUMMIT COUNTY — Global warming plays out on a stage that’s much more complex than just a rising graph line in a climate model.
In the northern hardwood forests of New England, for example, the models don’t account for factors critical to understanding forest response, such as hydrology, soil conditions, and plant-animal interactions, according to Dr. Peter Groffman, a microbial ecologist at the Cary Institute of Ecosystem Studies. Continue reading
Filed under: climate and weather, Environment, forests, global warming | Tagged: climate change, Environment, forests, global warming, Hubbard Brook Experimental Forest, New England, Northern hardwood forest, White Mountains | Leave a comment »