AICE MARINE VOCAB 10/16

Community

all the different populations interacting in one habitat at the same time

eutrophication 

Process which a body of water becomes enriched in dissolved nutrients, stimulates growth of producers resulting to depletion of oxygen

compensation point ( depth ) 

light intensity at which the rate of photosynthesis and respiration are equal

trophic level 

position an organism occupies in the food chain and food web

food web 

way to show all the different feeding relationships in an ecosystem

biomass

mass of living material in an area, can be measured as dry mass or wet mass

decomposer 

bacteria and fungi break down dead organic matter and release the nutrients back into environment

omnivore 

animals which feeds on other animals and on producers

prey 

animal which is eaten by predators

predator 

animal which hunts kills and eats other animals

carnivore 

animal which feeds on other animals

herbivore 

animal which feeds on only producers

food chain 

way to describe the feeding relationships between organisms

Primary productivity 

rate of production of new biomass through photosynthesis or chemosynthesis

heterotroph 

organism that cant make its own food and relies on consuming other organisms, fungi and most bacteria

autotroph 

organism that can capture energy in light or chemicals and use it to produce carbohydrates from simple molecules like carbon dioxide

endoparasite 

parasite such as tapeworm which lives inside body of host

ectoparasite 

parasite such as a flea which lives on the outside of its host

commensalism 

relationship between 2 organisms where one organism benefits and the other is neither harmed or benefited

symbiosis 

relationship between 2 or more organisms of different species which live physically close to each other

competition 

relationship between 2 organisms where both species are negatively affected as they are trying to use the same resources

Parasitism 

relationship between 2 organisms where the parasite obtains benefit at the expense of the host

Predation 

relationship between 2 organism where the predator hunts kills and eats a prey animal

Mutualism 

relationship between 2 different organisms where both organisms benefit