Navigation Links
Phytoplankton and zooplankton biomass will decrease 6 percent and 11 percent due to climate change
Date:5/7/2014

Sea surface temperature is expected to increase 2 C on average globally by 2080-2100. Some of the consequences of this increase include changes in ocean circulation and higher water column stratification, thus affecting the nutrient availability for the growth of marine phytoplankton.

The research team led by Azti-Tecnalia points out the effects to primary production (phytoplankton mass produced annually by photosynthetic single-celled organisms that are suspended in the ocean), and to secondary production (zooplankton biomass, made up of small animal organisms that feed mainly on phytoplankton and which fish feed on).

Globally, it is estimated that the sea temperature rise will cause phytoplankton and zooplankton biomass to decrease by 6% and 11% respectively. This suggests that there will be a negative amplification of climate change, which will spread through the marine food web, i.e. zooplankton biomass will decrease more than phytoplankton. This process will take place mainly in tropical oceans, which cover 47% of the global ocean surface.

Differences by region

Phytoplankton and zooplankton reduction, however, will affect different regions in different ways. In the seas in Central and Southern Europe (North Sea and temperate Northeast Atlantic), higher thermal stratification of the ocean water layers and, consequently, a lower presence of nutrients for phytoplankton to grow, will reduce primary production; and in the Baltic, Barents and Black Sea phytoplankton production is expected to increase.

Azti-Tecnalia researcher Guillem Chust, leader of the scientific work and main author of the paper, says that "in the ocean regions that lose more phytoplankton and zooplankton biomass, that is, with a negative amplification, fish biomass may also decrease dramatically, especially pelagic species (i.e. those living the water column, excluding the seabed)".

"Climate regulation will also be affected negatively by the primary and secondary production decrease globally," Chust explains, "because, as there will be less phytoplankton, absorption of CO2 from the atmosphere by the oceans will be lower, as plankton is responsible for half of the planet's photosynthetic activity. This in turn will reduce the ocean's capacity to regulate the climate".


'/>"/>

Contact: Irati Kortabitarte
i.kortabitarte@elhuyar.com
34-943-363-040
Elhuyar Fundazioa
Source:Eurekalert

Related biology news :

1. IU-led team uncovers process for chameleon-like changes in worlds most abundant phytoplankton
2. Scientists discover huge phytoplankton bloom in ice-covered waters
3. Small biomass power plants could help rural economies, stabilize national power grid, MU study finds
4. Urgent need to study the impacts of biomass burning and haze on marine ecosystems
5. Solar-induced hybrid fuel cell produces electricity directly from biomass
6. The biomass of ocean mesopelagic fish is 10 times higher than estimated
7. Fish biomass in the ocean is 10 times higher than estimated
8. Biomass supply chains developed by VTT speed up use of bioenergy in Vietnam
9. Burning biomass pellets instead of wood or plants in China could lower mercury emissions
10. 21st European Biomass Conference and Exhibition
11. Biomass research collaboration seeks to improve biofuel efficiency, bio-products quality
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/21/2016)... Nov. 21, 2016   Neurotechnology , a ... technologies, today announced that the MegaMatcher On Card ... submitted for the NIST Minutiae Interoperability Exchange ... the mandatory steps of the evaluation protocol. ... continuing test of fingerprint templates used to establish ...
(Date:11/15/2016)... Md. , Nov. 15, 2016  Synthetic ... company developing therapeutics focused on the gut microbiome, ... offering of 25,000,000 shares of its common stock ... common stock at a price to the public ... proceeds to Synthetic Biologics from the offering, excluding ...
(Date:6/22/2016)... American College of Medical Genetics and Genomics was once again ... of the fastest-growing trade shows during the Fastest 50 Awards ... Las Vegas . Winners are ... of the following categories: net square feet of paid exhibit ... 2015 ACMG Annual Meeting was ranked 23 out of 50 ...
Breaking Biology News(10 mins):
(Date:12/9/2016)... ... 2016 , ... DuPont Industrial Biosciences (DuPont) and Archer Daniels ... Award from Platts Global Energy for their platform technology to produce a ... the 18th Platts Global Energy Awards, held in New York on Thursday, Dec. 8. ...
(Date:12/9/2016)... 2016 The research report by ... in the  Global Label-Free Array Systems Market  accounted for ... 2015. Players such as Biacore, Agilent Technologies, ForteBio, Molecular ... the global market due to their unmatched product portfolio ... upgrades and timely product launches are expected to be ...
(Date:12/9/2016)... China Cord Blood Corporation (NYSE: CO ... leading provider of cord blood collection, laboratory testing, hematopoietic stem ... results of its 2016 Annual General Meeting, which was held ... China . At the Annual General ... KPMG Huazhen LLP as the independent auditors of the Company ...
(Date:12/9/2016)... , December 9, 2016 According to a ... (Primer, Probe, Custom, Predesigned, Reagent Equipment), Application (Research, PCR, Gene, DNA, ... 2021" published by MarketsandMarkets, the global market is expected to reach ... at a CAGR of 10.6% during the forecast period. ... ...
Breaking Biology Technology: