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:2/5/2016)... 2016 http://www.researchandmarkets.com/research/5kvw8m/global_facial ) ... "Global Facial Recognition Market 2016-2020" report ... ) has announced the addition of the ... report to their offering. --> ... announced the addition of the "Global ...
(Date:2/3/2016)... , Feb. 3, 2016 Vigilant Solutions ... Police Department in Missouri solved ... plate reader (LPR) data from Vigilant Solutions. ... case in which the victim was walking out of a convenience store and ... space next to his vehicle, striking his vehicle and ...
(Date:2/2/2016)... , Feb. 2, 2016 Checkpoint ... that Rising Market Are you interested in ... forecasts revenues for checkpoint inhibitors. Visiongain,s report gives ... submarket, product and national level. Avoid falling ... what progress, opportunities and revenues those emerging cancer ...
Breaking Biology News(10 mins):
(Date:2/12/2016)... 12, 2016  BD (Becton, Dickinson and Company) (NYSE: ... today announced the launch of the BD CLiC™ System ... (AGBT) Meeting. --> ... by providing cost effective NGS library preparation with limited ... fully integrated, next generation sequencing (NGS) library prep instrument, ...
(Date:2/11/2016)... DIEGO, Feb. 11, 2016  Neurocrine Biosciences, Inc. (NASDAQ: NBIX ... ended December 31, 2015. --> ... a net loss of $29.3 million, or $0.34 loss per share, ... per share for the same period in 2014. For the year ... $88.9 million, or $1.05 loss per share, as compared to a ...
(Date:2/11/2016)... ATLANTA , Feb. 11, 2016  Spectra BioPharma ... Organization (CSO) that provides biopharma companies the experience, ... implement and deploy outsourced sales teams. Created in ... team addresses both the strategic and tactical needs ... innovative sales solutions through both personal and non-personal ...
(Date:2/11/2016)... BEACH, Florida , February 11, 2016 /PRNewswire/ ... PositiveID Corporation ("PositiveID" or "Company") (OTCQB: PSID), ... diagnostics, announced today that its Thermomedics subsidiary, which ... progress on its growth plan in January 2016, ... products distributors, increasing sequential monthly sales growth, and ...
Breaking Biology Technology: