Citat:
Ursprungligen postat av
ZiggeZiggarett
Nu tror jag just ishaven är väldigt produktiva sommartid. Valarna simmar ju till Antarktis och käkar krill?
Jag tror som sagt att andelen biomassa i växter i haven är ganska lågt.
"Estimates for the global biomass of species and higher level groups are not always consistent across the literature. The total global biomass has been estimated at about 550 billion tonnes C.[5][1] Most of this biomass is found on land, with only 5 to 10 billion tonnes C found in the oceans.[5] On land, there is about 1,000 times more plant biomass (phytomass) than animal biomass (zoomass). About 18% of this plant biomass is eaten by the land animals.[20] However, in the ocean, the animal biomass is nearly 30 times larger than the plant biomass.[21] Most ocean plant biomass is eaten by the ocean animals.[20]"
"Humans comprise about 100 million tonnes of the Earth's dry biomass,[38] domesticated animals about 700 million tonnes, earthworms over 1,100 million tonnes,[29] and annual cereal crops about 2.3 billion tonnes.[39]
The most successful animal species,
in terms of biomass, may well be Antarctic krill, Euphausia superba, with a fresh biomass approaching 500 million tonnes,[35][40][41] although domestic cattle may also reach these immense figures.[citation needed] However, as a group, the small aquatic crustaceans called copepods may form the largest animal biomass on earth.[42] A 2009 paper in Science estimates, for the first time, the total world fish biomass as somewhere between 0.8 and 2.0 billion tonnes.[43][44] It has been estimated that about 1% of the global biomass is due to phytoplankton,[45] and 25% is due to fungi.[46][47]"
FWIW.
https://en.wikipedia.org/wiki/Biomass_(ecology)