Whales forced to ‘shout’ mating calls to compete with noisy UK seas

NewsCore November 14, 2010 9:57PM Noise from shipping traffic, wind farms and oil exploration was forcing whales near the UK to shout louder to make their mating calls heard, scientists have said. Marine biologists studying whales in the seas around Britain found that their calls became 10 times louder over the past 50 years as […]

Graph of the Day: Annual Releases of Hatchery Salmon into the North Pacific Ocean, 1950-2005

(A) Annual releases of juvenile hatchery chum salmon, pink salmon, and sockeye salmon into the North Pacific Ocean and (B) the proportion of total hatchery releases originating from North American hatcheries, 1950–2005. Values exclude spawning-channel sockeye salmon. Values are updated from Mahnken, et al. (1998). Ruggerone, et al, 2010 Gregory T. Ruggerone, Randall M. Peterman, […]

Hatch-22: The problem with the Pacific salmon resurgence

The number of salmon in the Pacific Ocean is twice what it was 50 years ago. But there is a downside to this bounty, as growing numbers of hatchery-produced salmon are flooding the Pacific and making it hard for threatened wild salmon species to find enough food to survive. By Bruce Barcott01 Nov 2010 In […]

Graph of the Day: Warming and Freshening of the Beaufort Sea in 2008 Compared to the 1970s

There have been significant changes in the water mass characteristics of the Beaufort Sea which may impact species distribution and primary production. The freshwater and heat content of the Beaufort gyre has significantly increased relative to the 1970s. The temperature increase has been related to a twofold increase in the temperature of the Atlantic water […]

Tagged narwhals track warming near Greenland

ScienceDaily (Oct. 27, 2010) — In a research paper published online October 27 in the Journal of Geophysical Research Oceans, a publication of the American Geological Union (AGU), scientists reported the southern Baffin Bay off West Greenland has continued warming since wintertime ocean temperatures were last effectively measured there in the early 2000s. Temperatures in […]

Graph of the Day: Sea Surface Temperature and Salinity on Canada North Coast, 1930s–2000s

Long-term records of sea surface temperature show a period of colder surface waters from the period 1945–1978, switching to a long period of warmer surface waters from 1978–2006. The zooplankton community composition and several fisheries time series (e.g. salmon marine survival and sablefish recruitment) are correlated with large-scale climate signals (i.e. El Niño Southern Oscillation […]

Video: Climate denial: More to deny than ever

Gil Smart says that after a summer of climate catastrophes, conservative climate change deniers have to work extra hard to ignore the obvious. Climate denial: More to deny than ever via R. Pauli Technorati Tags: global warming,climate change,coral,Indonesia,ocean,flood,wildfire,forest fire,heat wave

‘Washed Ashore’ art exhibit explores plastic pollution

By Jaymi Heimbuch in San Francisco, California 18 October 2010 Inspired by Chris Jordan’s photography of birds killed by ingesting plastic, Angela Haseltine Pozzi, artist and Executive Director of Artula Institute, came up with an idea that would put the problem of plastic pollution in perspective. Why not make the issue of birds killed by […]

Coral records show ocean thermocline rise with global warming

(Ohio State University) Researchers looking at corals in the western tropical Pacific Ocean have found records linking a profound shift in the depth of the division between warm surface water and colder, deeper water traceable to recent global warming. The finding is the first real evidence supporting what climate modelers have been predicting as the […]

Smithsonian reports regional sea temperature rise and coral bleaching event in Western Caribbean

Contact: Beth King, kingb@si.edu 12 October 2010 (Smithsonian Tropical Research Institute) The Smithsonian Tropical Research Institute’s Bocas del Toro Research Station and Galeta Point Marine Laboratory are reporting an anomalous sea temperature rise and a major coral bleaching event in the Western Caribbean. Although the U.S. National Oceanic and Atmospheric Administration, NOAA, issued an advisory […]

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