Tags » Zooplankton

Metabolic responses of the North Pacific krill, Euphausia pacifica, to short- and long-term pCO2 exposure

While ocean acidification is likely to have major effects on many marine organisms, those species that regularly experience variable pCO2 environments may be more tolerant of future predicted changes in ocean chemistry. 235 more words

Science

A data-model synthesis to explain variability in calcification observed during a CO2 perturbation mesocosm experiment

A series of studies were conducted during the last two decades to investigate effects of ocean acidification (OA) on phytoplankton physiology, plankton ecology, and biogeochemical dynamics of marine ecosystems. 306 more words

Science

A first look at factors affecting aragonite compensation depth in the eastern Arabian Sea

Water column measurements suggest shoaling of aragonite saturation depths (ASD) throughout the world oceans, due to increase in greenhouse gas concentration. Past records of aragonite saturation state under different climatic conditions are required to assess the impact of climatic changes on shoaling/deepening of ASD. 269 more words

Science

Ocean acidification reduces demersal zooplankton that reside in tropical coral reefs

The in situ effects of ocean acidification on zooplankton communities remain largely unexplored. Using natural volcanic CO2 seep sites around tropical coral communities, we show a threefold reduction in the biomass of demersal zooplankton in high-CO2 sites compared with sites with ambient CO2. 164 more words

Science

New paper: using X rays to look inside zooplankton resting eggs

Zooplankton dormant eggs are time capsules that can transport offspring to distant futures. However, after decades of study we still don’t know very well how this mechanism has evolved and how it works from a mechanistic point of view. 245 more words

Large Branchiopods

Withstanding multiple stressors: ephyrae of the moon jellyfish (Aurelia aurita, Scyphozoa) in a high-temperature, high-CO2 and low-oxygen environment

Global change is affecting marine ecosystems through a combination of different stressors such as warming, ocean acidification and oxygen depletion. Very little is known about the interactions among these factors, especially with respect to gelatinous zooplankton. 196 more words

Science

Warm Temperatures and Nutrients May Alter Mercury Contamination in Lakes and Reservoirs

A new US Geological Survey study that was recently featured on Oregon Public Broadcasting is examining why fish in the Hells Canyon Complex of the Snake River have elevated levels of mercury.  385 more words