Begrepp Akvatisk Biologi

Pelagic organisms Living in water column

Phytoplankton algae

Zooplankton animals

Holoplankton permanent members of water column

Meroplankton temporary members of the water column

Nekton swimmer; fish, whales, penguins

Epifauna living on the bottom

Infauna living in the bottom

Macrofauna >500 μm

Meiofauna 10-500 μm

Microbes <10 μm

Macrophytes multicellular

Periphyton singel celled or filamentuos algae

Epiphytic algae grow on macrophytes

Osmoconformers body fluids follow external osmotic conditions

Osmoregulators body fluids have constant ionic concentration

Trench one tectonic plate comes on top of another

Polynya open water in the middle of sea ice

Halocline salinity

Pycnocline density

Thermocline temperature

Light attenuation decreased light intensity with depth

Compensation point prod = resp

Critical depth phytoplankton growth = phytoplankton biomass loss

CPOM Coarse Particulate Organic Matter, >1mm

POM Particulate Organic Matter, 0, 053mm - 2mm

FPOM Fine Particulate Organic Matter, <1mm

DOM Dissolved Organic Matter, <45μm

DOC Dissolved Organic Carbon

Ridges tectonic plates move a part

Ultraplankton 0, 02-2microm, bacteria

Nanoplankton 2-20 microm, microflagellates

Microplankton 20-200microm, phytoplankton, grazing zooplankton(ciliates)

Macroplankton 200microm - 2mm, predatory zooplankton, large grazing zooplankton

Megaplankton >2mm, jellyfish

Riparian referring to the bank of a river

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