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Multigenerational exposure to ocean acidification during food limitation reveals consequences for copepod scope for growth and vital rates

The copepod Calanus finmarchicus is a key component of northern Atlantic food webs, linking energy-transfer from phytoplankton to higher trophic levels. We examined the effect of different ocean acidification (OA) scenarios (i.e. ambient, 1080, 2080 and 3080 ?atm CO2) over two subsequent generations under limited food availability. Show More Summary

High Level of Seafood Fraud Found in Denmark

Atlantic cod (Gadus morhua) in Gilleleje North, Denmark. (Photo: Oceana / Carlos Minguell) A new study conducted by Oceana, the Danish newspaper Søndagsavisen, and the TV program “Go’Aften Denmark” found that there is a high level of sea fraud in Danish markets. Show More Summary

Mg/Ca composition of benthic foraminifera Miliolacea as a new tool of paleoceanography

The Mg/Ca compositions of benthic foraminifera from the superfamily Miliolacea have been studied to explore the use of these high-Mg foraminifera as a proxy for deep ocean conditions. Taxonomic analyses, relative abundance, and depth distributions of different Miliolacea species were carried out on a collection of core-top samples, covering a depth range of 131?m to […]

Ocean acidification fact, not theory

Ocean acidification is fact, not theory, and collaboration and adaptation are key to tackling this crisis. That was the conclusion of local shellfish growers, marine managers and scientists who gathered September 10 in Friday Harbor, Washington. Show More Summary

Ocean acidification will affect shark populations…

When atmospheric carbon dioxide dissolves in the oceans it forms carbonic acid, which in turn has a negative impact on marine life. Laboratory studies show that as seawater acidity increases, the calcium carbonate shells and skeletons of many marine species, such as hard corals, sea urchins, and stony seaweeds, begin to corrode. Since 2000, scientists have measured […]

Coral growth rate plummets in 30-year comparison (text & audio)

Washington, DC— A team of researchers working on a Carnegie expedition in Australia’s Great Barrier Reef has documented that coral growth rates have plummeted 40 percent since the mid-1970s. The scientists suggest that ocean acidification may be playing an important role in this perilous slowdown. In a quest for historical context on the peril facing […]

Community calcification in Lizard Island, Great Barrier Reef: a 33 year perspective

Measurements of community calcification (Gnet) were made during September 2008 and October 2009 on a reef flat in Lizard Island, Great Barrier Reef, Australia, 33 years after the first measurements were made there by the LIMER expedition in 1975. In 2008 and 2009 we measured Gnet = 61 ± 12 and 54 ± 13 mmol […]

9-18-14 The J14s Just Didn't Want to Go

Thursday, September 18th...Granny J-2, in the lead, about a half hour ahead of Onyx L-87...but her lead changed when she changed direction and met up with him off shore from the lighthouse......others were still down island......what...Show More Summary

Congress Advances Legislation to Fight Pirate Fishing, Keep Illegally-Caught Seafood Out of U.S. Market

Illegal driftnets in the port of Tangiers, Morocco. (Photo: Oceana) The House Natural Resources Committee took a significant step forward yesterday in the fight against illegal fishing and seafood fraud, passing the Illegal, Unreported, and Unregulated (IUU) Fishing Enforcement Act (H.R. 69) by unanimous consent. read more

Ocean Roundup: Gulf of Mexico Sharks are Shrinking, Caribbean Reefs Capable of Being Saved, and More

A tiger shark. Researchers say some shark species are decreasing in size in the Gulf of Mexico. (Photo: Willy Volk / Flickr Creative Commons) - Researchers say that some sharks in the Gulf of Mexico are decreasing in size, and in some cases are down by as much as 70 percent. Show More Summary

ZOMG Whale shark attack!!!! Or not…

So this little gem came across my Google alerts today. The cognitive dissonance between what happens (biologically) in that video, what the two intrepid heroes do, and what’s reported, fills me with dismay for society.  If that seems hyperbolic, bear with me.  Let’s break it down: What the story says Benchley-esque narrative: blah blah “terrifying […]

Photos: On International Coastal Cleanup Day, Five Ways to Help the Oceans

Oceana in Belize picking up trash on World Oceans Day this past summer. (Photo: Alexander Ellis / Oceana in Belize) Marine debris has become a major issue facing the oceans today. It’s estimated that 10 to 20 million tons of plastic trash make their way to the ocean each year through a number of pathways, like litter, runoff, and direct dumping. Show More Summary

Elevated carbon dioxide alters the plasma composition and behaviour of a shark

Increased carbon emissions from fossil fuels are increasing the pCO2 of the ocean surface waters in a process called ocean acidification. Elevated water pCO2 can induce physiological and behavioural effects in teleost fishes, although there appear to be large differences in sensitivity between species. Show More Summary

Effect of ocean warming and acidification on a plankton community in the NW Mediterranean Sea

The effect of ocean warming and acidification was investigated on a natural plankton assemblage from an oligotrophic area, the bay of Villefranche (NW Mediterranean Sea). The assemblage was sampled in March 2012 and exposed to the following four treatments for 12 days: control (?360 ?atm, 14°C), elevated pCO2 (?610 ?atm, 14°C), elevated temperature (?410 ?atm, […]

9-16-14 Would We Ever Get to the Residents Today?

Tuesday, September 16th...Granny J-2 and Group A Minus were to the north......the J16s had been down island last I knew......and more whales had come in during the night......I barely got a glimpse of them from about a mile south of Lime Kiln Pt. Show More Summary

Oceana Magazine: Arctic Assets

Arctic sea ice. (Photo: NASA Goddard Space Flight Center / Flickr Creative Commons) Earlier this year, Oceana released a report, “Frozen Future: Shell’s ongoing gamble in the U.S. Arctic,” that detailed Royal Dutch Shell’s involvement with Arctic offshore drilling. Show More Summary

Photos: Oceana Launches Expedition to El Hierro Island and Atlantic Seamounts

Rocky seabed covered with in the Canary Islands, Spain. Oceana launched their second expedition to the Canary Islands this week. (Photo: EUO © OCEANA Carlos Suárez / Flickr) Earlier this week, Oceana in Europe launched their second expedition to the Canary Islands. Show More Summary

Go forth and plunder some trash for International Coastal Cleanup Day this Saturday

Worried about plastic in the ocean? Then get off your rumpus this weekend and do something about it! It’s International Coastal Cleanup Day this Saturday, September 20. You and a trash bag and a bunch of your friends can spend a day at the beach making it trash free. Because believe you me, right now that beach […]

Ocean Roundup: Tiny Clownfish Can Swim for 250 Miles, Sydney Harbor May Turn Tropical, and More

A new study shows that clownfish can swim for great distances. (Photo: vivacevy / Flickr Creative Commons) - Tiny larvae clownfish are capable of traveling vast distances—up to 250 miles in search of a new coral home, according to a recent study. Researchers say that this will help the species deal with climate change. The Guardian read more

9-15-14 The T60's Again

Monday, September 15th...no sign of Granny and Group A, but the T60s were seen again...so off we went on Maya's Westside Charters to see what they were up to...especially after yesterday!...nice group...and there was one other with them...T002B......I...Show More Summary

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