Oceanography, climate & fisheries

By S. McClatchie | Scientific information on climate variability, multidisciplinary ocean science and fisheries resources from a non-advocacy view point.

Deep Trouble! Common Problems for Ocean Observatories

Science observation of the ocean is difficult. The cost to repair or replace a failed device can run many orders of magnitude higher than the base …

Oceans

The Fish that Smells like Money

The exploding industry, however, mostly served a handful of fishing magnates and international buyers. The locals saw few gains, despite living so …

Extreme weather has greater impact on nature than expected

<b>An oystercatcher nest is washed away in a storm surge. Australian passerine birds die during a heatwave. A late frost in their breeding area kills</b> …

Climate Change

Fishing can lead to rapid evolutionary changes in exploited fish populations

Cohort after cohort, fishing typically removes large fish from the population and can lead to rapid evolutionary changes in exploited fish …

No one lives on this remote Pacific island — but it’s covered in 38 million pieces of our trash

Henderson Island, an uninhabited atoll in the South Pacific, is so isolated that it’s one of the few places in the world “whose ecology has been practically untouched by a human presence.”<p>That is, at least, according to its description by a United Nations group, which named Henderson Island a …

Oceans

UNH Researchers Find Significant Increase of Invasive Seaweed Changing Sea Habitat

DURHAM, N.H. – Walking along the beaches of New England, it is easy to spot large amounts of a fine red seaweed clogging the coastline, the result of …

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11/05/2017 - Picky fruit-eating birds are more flexible<p><b>Frankfurt am Main, Germany, 05/11/2017. Researchers from Senckenberg and the German Centre for</b> …

Ecology

Varied increases in extreme rainfall with global warming

A new study by researchers from MIT and the Swiss Federal Institute of Technology in Zurich shows that the most extreme rain events in most regions …

Climate Change

Iowa State University

AMES, Iowa – A study from Iowa State University researchers casts new light on how biologists understand the likelihood of coextinction among plants …

Iowa State University

Heat on for Australia's Great Barrier Reef when global temperatures hit 1.5C: When global warming hits 1.5°C or 2°C, extreme events grow in frequency

When global warming hits 1.5°C or 2°C, extreme events grow in frequency<p>Scientists have modeled how extremes in precipitation, drought, extreme heat …

Autonomous Floats Shed New Light on the Ocean’s Many Hues

Earth’s oceans are undeniably blue, but tiny photosynthetic phytoplankton and dissolved organic material absorb and scatter sunlight, creating swaths …

Oceans

Shelf sediments reveal climate shifts through the eons

Climate change around Antarctica can severely affect Australia’s rainfall and even influence the distribution of wet and dry zones across southeast …

Climate Change

Paris 1.5°C target may be smashed by 2026 | Australian Research Council's (ARC) Centre of Excellence for Climate System Science

Global temperatures could break through the 1.5°C barrier negotiated at the Paris conference as early as 2026 if a slow-moving, natural climate …

Climate Change

Packing Science into a Shipping Vessel

More than a flower, the <i>Oleander</i> is a container ship that provides weekly service between Hamilton, Bermuda, and Port Elizabeth, N.J. In so doing, the …

Oceans

Are methane seeps in the Arctic slowing global warming?

Good news about climate change is especially rare in the Arctic. But now comes news that increases in one greenhouse gas—methane—lead to the dramatic …

Global Warming

Decades of Data on World’s Oceans Reveal a Troubling Oxygen Decline | Research Horizons | Georgia Tech's Research News

A new analysis of decades of data on oceans across the globe has revealed that the amount of dissolved oxygen contained in the water – an important …

Climate instability over the past 720,000 years: Ice core analysis from Dome Fuji, Antarctica and climate simulation

Ice core analysis from Dome Fuji, Antarctica and climate simulation<p>A new analysis of an ice core from Dome Fuji in Antarctica, along with climate …

Oysters, Despite What You’ve Heard, Are Always in Season

There’s no “r” in May — much to the dismay of oyster lovers who’ve learned to follow this rule of thumb: Eat raw oysters only in months containing the letter “r.”<p>But what does the spelling of a word have to do with the viscous helping of flesh you slurp out of a half shell?<p>The short answer is …

Oysters

Temperature-boosting El Niño set for early return this year

The climate event that helped supercharge global warming to record levels in 2015 and 2016 is 50-60% likely in 2017, says World Meteorological Organization<p>The El Niño climate event that helped supercharge global warming to record levels in 2015 and 2016 is set for an early return, according to a …

Climate Change

In Disposable Mucus Houses, These Zooplankton Filter the Oceans

Swimming hundreds of feet beneath the ocean’s surface in many parts of the world are prolific architects called giant larvaceans. These zooplankton are not particularly giant themselves (they resemble tadpoles and are about the size of a pinkie finger), but every day, they construct one or more …

Oceans

A new crack in one of Antarctica’s biggest ice shelves could mean a major break is near

Another branch has appeared in a huge crack on one of Antarctica’s largest ice shelves, and scientists fear it’s only a matter of time before a huge chunk — potentially containing up to 2,000 square miles of ice — breaks away. If this happens, the ice shelf may become increasingly unstable and …

Climate Change

China’s Appetite Pushes Fisheries to the Brink

JOAL, Senegal — Once upon a time, the seas teemed with mackerel, squid and sardines, and life was good. But now, on opposite sides of the globe, sun-creased fishermen lament as they reel in their nearly empty nets.<p>“Your net would be so full of fish, you could barely heave it onto the boat,” said …

Surprise El Niño causes devastation but offers lessons for ecologists

How Peruvian coastal deserts respond to rains will aid future disaster response.<p>Torrential rains pummelled Peru’s northern coastal desert in February …

El Niño

Climate change is making algal blooms worse

Rising ocean temperatures drive more intense and longer lasting toxic outbreaks.<p>Researchers have long suggested that climate change could mean more …

New Study Suggests Overfishing in One of World’s Most Productive Fishing Regions

A new study suggests that more small-scale fishing boats are operating in the Gulf of California than is economically and ecologically sustainable, …

How a Warming Planet Drives Human Migration

Climate change is not equally felt across the globe, and neither are its longer term consequences. This map overlays human turmoil — represented here by United Nations data on nearly 64 million “persons of concern,” whose numbers have tripled since 2005 — with climate turmoil, represented by data …

Climate Change

Coastal warming related to ‘the Blob’

The May 2015 monthly average sea surface temperature anomaly showing 'the Blob' of record warm temperatures in the Pacific Ocean. Along the US West …

Nile faces greater variability

The unpredictable annual flow of the Nile River is legendary, as evidenced by the story of Joseph and the Pharaoh, whose dream foretold seven years …

Climate Change

Water Is Streaming Across Antarctica | Lamont-Doherty Earth Observatory

In the first such continent-wide survey, scientists have found extensive drainages of meltwater flowing over parts of Antarctica’s ice during the …