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Ocean acidification effects on haploid and diploid Emiliania huxleyi strains: why changes in cell size matter

Highlights Haploid and diploid Emiliania huxleyi were cultured under elevated pCO2 for 20 generations Emiliania huxleyi cell and coccosphere volumes increased under high pCO2 despite equivalent within treatment growth rates. Cellular dimethylsulfoniopropionate increased under elevated pCO2 E. Show More Summary

Coral hawkfish are named for their penchant for perching on...

Coral hawkfish are named for their penchant for perching on pieces of rock or coral and watching (like a hawk) for prey to go by.

That moment when DIY nest-making goes terribly wrong—wait for...

A video posted by Monterey Bay Aquarium (@montereybayaquarium) on Jan 4, 2017 at 11:02am PST That moment when DIY nest-making goes terribly wrong—wait for it! Besides the pebbles we provide, the penguins are all looking for the bestShow More Summary

NOAA Ocean Acidification Program meeting, join the webinar!

JOIN THE WEBINAR! Please register for NOAA Ocean Acidification Program Meeting- Scientific Findings and Accomplishments on Jan 4, 2017 8:15 AM PST at: NOAA’s Ocean Acidification...Show More Summary

Expected CO2-induced ocean acidification modulates copper toxicity in the green tide alga Ulva prolifera

Highlights The inhibition of Cu on growth and photosynthesis was reduced at moderate pCO2. The inhibition of Cu on growth and photosynthesis was magnified at high pCO2. Respiration and Chl a were enhanced by increased Cu at low and moderate pCO2 levels. Shrank and branched thalli were induced by high Cu and pCO2. Abstract Cu […]

Developments in marine pCO2 measurement technology; towards sustained in situ observations

The oceanic uptake of anthropogenic CO2 causes pronounced changes to the marine carbonate system. High quality pCO2 measurements with good temporal and spatial coverage are required to monitor the oceanic uptake, identify regions with pronounced carbonate system changes, and observe the effectiveness of CO2 emission mitigation strategies. Show More Summary

Survival, growth, and morphology of blue king crabs: effect of ocean acidification decreases with exposure time

Ocean acidification is an altering marine carbonate chemistry resulting in potential effects to marine life. In this study, we determine the effects of decreased pH on the morphology, growth, and survival of juvenile blue king crab, Paralithodes platypus. Crabs were reared at three pH levels: ambient (control, pH ?8.1), pH 7.8, and pH 7.5, for […]

typhlonectes: A ‘dumbo’ octopus seen during Alvin Dive 4853...

yphlonectes: A ‘dumbo’ octopus seen during Alvin Dive 4853 over the weekend at about 2,222 meters depth. The location was Beryl Seamount at 8° 23.5’N; 104° 40.74.W, west of the East Pacific Rise axis. Photo is a still from the WHOI-MISO GoPro camera. Alvin pilot was Pat Hickey, observers were Dennis Geist and Craig Lundstrom. (via: Woods Hole Oceanographic Institution)

Peregrine Falcon Punch! Look out below—peregrine falcons...

Peregrine Falcon Punch! Look out below—peregrine falcons sometimes perch atop our smokestacks, a prime spot for observing prey. These raptors can reach over 200 mph when diving through the air to strike prey (usually pigeons at the Aquarium), making them one of the fastest flying birds in the world.

sciencefriday: laughingsquid: ketrinadrawsalot: Know Your...

sciencefriday: laughingsquid: ketrinadrawsalot: Know Your Cephalopods! Know Your Cephalopods! Always ready for some cephalopods! Important! There will be a test later.

That feeling when you need lots of blubber to stay warm in the...

That feeling when you need lots of blubber to stay warm in the chilly ocean, so your only New Year’s resolution is to nap more.

What did the Boyan Slat and the Ocean Cleanup do last summer?

Because I haven’t written an update on the Ocean Cleanup and Boyan Slat in a while… They deployed a 100-m long prototype that is really 30-year old RO-BOOM technology with some new fancy hardware.   Deployed in only 30 m of water during a calm summer the prototype failed after 2 months. Because shackles. It cost […]

Job opening: Research Oceanographer

The NOAA Pacific Marine Environmental Laboratory (PMEL) Carbon Program is seeking a Research Oceanographer to serve as a research leader for a team of scientists performing research into critical problems on chemical oceanography and related scientific disciplines. Show More Summary

Ocean acidification impacts bacteria–phytoplankton coupling at low-nutrient conditions (update)

The oceans absorb about a quarter of the annually produced anthropogenic atmospheric carbon dioxide (CO2), resulting in a decrease in surface water pH, a process termed ocean acidification (OA). Surprisingly little is known about how...Show More Summary

Tropical CO2 seeps reveal the impact of ocean acidification on coral reef invertebrate recruitment

Highlights CO2 seeps at two coral reefs in Papua New Guinea were used as natural analogues of ocean acidification. Elevated CO2 affected recruitment in marine invertebrate communities. Calcified recruits of reef-dwelling Foraminifera, polychaetes, gastropods, and bivalves were vulnerable to acidification. Show More Summary

The combined effects of reduced pH and elevated temperature on the shell density of two gastropod species measured using micro-CT imaging

The increased absorption of atmospheric CO2 by the ocean affects carbonate chemistry and calcification rates of marine organisms. The impacts of low pH and seawater warming were investigated for the intertidal gastropods Nassarius nitidus and Columbella rustica. Show More Summary

Two Southern Ocean diatoms are more sensitive to ocean acidification and changes in irradiance than the prymnesiophyte Phaeocystis antarctica

To better understand the impact of ocean acidification (OA) and changes in light availability on Southern Ocean phytoplankton physiology, we investigated the effects of pCO2 (380 and 800 µatm) in combination with low and high irradiance (20 or 50 and 200 µmol photons m?2 s?1) on growth, particulate organic carbon (POC) fixation and photophysiology in […]

Seasonal controls of aragonite saturation states in the Gulf of Maine

The Gulf of Maine (GoME) is a shelf region especially vulnerable to ocean acidification (OA) due to natural conditions of low pH and aragonite saturation states (?-Ar). This study is the first to assess the major oceanic processes controlling seasonal variability of the carbonate system and its linkages with pteropod abundance in Wilkinson Basin in […]

nationalaquarium: This week we’re talking pufferfish for our...

nationalaquarium: This week we’re talking pufferfish for our Animal of the Week - like this striped burrfish! Pufferfish inhale water or air to puff up for protection. See more pufferfish here!  The ocean is full of amazing things ^

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