Aquatic Ecosystems (FINISH) Flashcards
What is a consequence of global warming?
Rapid glacial recession
What is limnology?
The study of inland waters
-rivers,sreams
-lakes,ponds,wetlands
What is oceanography?
Studying marine ecology
What are lotic ecosystems?
Running waters
-rivers and streams
What are the sizes of running water?
Rivers>streams>creeks>brooks
What are canals?
Human created channels of flowing water
What are low-order flowing waters?
Creeks
1st orders are shaded by forest canopies, limits light for primary production
Decomposing lead litter fuels creek food webs
Respiration exceeds primary production (greenhouse gases)
What are mid-order flowing waters?
Streams
2nd-5th orders are well lit as the forest canopy opens
Greater light availability fuels primary production and grazing invertabrates
Autotrophic
What are high-order flowing waters?
Rivers
5th orders are well lit as channel widens and canopy parts
Greater input of soil erosion, leads to more turbid waters and can limit light
Heterotrophic
What is found in headwater creeks?
Shredders of leaf litter and collectors of coarse particulate organic matter
What is found in streams?
Grazers of rock-attached microbial biofilms “periphyton”
What is found in rivers?
Collectors of fine particulate organic matter
What are the ecosystem services of lotic ecosystems?
Habitat for harvestable fish production
Transport of water for downstream use
Transportation routes
What are lentic ecosystems?
Standing water
What are lakes?
Relatively deep, large waterbodies
