What is allochthonous production?
What is allochthonous production?
Organic carbon produced by photosynthesis outside the stream, or allochthonous production. Organic carbon produced by photosynthesis within the stream, or autochthonous production.
What are allochthonous sources of organic matter?
Allochthonous dissolved organic matter is a source of organic carbon, nitrogen, phosphorus, and sulfur to aquatic systems that is derived from the surrounding terrestrial ecosystem.
What is allochthonous microorganism?
Allochthonous bacteria and most enteric and pathogenic microorganisms are released directly or through wastewaters to rivers and coastal areas. In the aquatic ecosystem, their survival is affected by complex environmental stresses and killing agents which trigger cellular responses that are still poorly understood.
What is autochthonous?
Definition of autochthonous 1 : indigenous, native an autochthonous people autochthonous plants. 2 : formed or originating in the place where found autochthonous rock an autochthonous infection.
What does autochthonous mean in biology?
native; indigenous; aboriginal; springing from the soil or land; related to the original primitive inhabitants; not changed by man. May also refer to microorganisms and/or substances indigenous to a given Ecosystem. Tags: Molecular Biology.
What are allochthonous sediments?
Allochthonous sediments include grains which have been transported to a site of deposition. Most marine and coastal sediments of this type are rock fragments having been transported by waves, wind, tidal currents or ocean currents.
What is Allochthonous deposit?
1. allochthonous – of rocks, deposits, etc.; found in a place other than where they and their constituents were formed. autochthonous – of rocks, deposits, etc.; found where they and their constituents were formed.
What are Allochthonous inputs?
Stream ecosystems receive energy from two sources: allochthonous inputs, which consist of terrestrially derived carbon (C) that is produced within the catchment and imported into the stream channel (e.g., Kaushik & Hynes, 1971), and autochthonous production, which includes C fixed within the stream channel by algae and …
What is the relationship between allochthonous and autochthonous sources of organic matter?
The sources of organic matter in estuaries can be autochthonous, being produced within the estuary by primary producers, depending on the availability of dissolved nutrients and light; or allochthonous, which indicates that the matter is transported to the estuary via rivers or effluents (Westerhoff and Anning, 2000).
What is an example of an autochthonous?
Use the adjective autochthonous to say that something is native to an area. If kane toads originated in your area, then they’re an autochthonous species.
What does the word Allochthonous mean?
Definition of allochthonous 1a : of or relating to the rocks of an allochthon. b of coal : formed elsewhere than in situ and hence not autochthonous. c of limestone : composed largely of organic debris moved far from the place where the base organisms lived.
What are allochthonous rocks?
Structural Geology An allochthon, or an allochthonous block, is a large block of rock which has been moved from its original site of formation, usually by low angle thrust faulting. An allochthon which is isolated from the rock that pushed it into position is called a klippe.
What is autochthonous input?
In aquatic communities, the autochthonous input is provided by the photosynthesis of large plants and attached algae in shallow waters (littoral zone) and by microscopic phytoplankton.
What are allochthonous inputs?
What is meant by autochthonous?