organismidevaheline toitumissuhtestik; toiduahela esimese astme moodustavad autotroofid (produtsendid), teise taimtoidulised (herbivoorid), kolmanda lihatoidulised (karnivoorid) jne
a sequence of organisms in a community each of which uses the next usually lower member of the sequence as a food source, plants being the ultimate basis of the sequence
Achieving a lasting balance between aquatic resources and their exploitation and environmental impact represent an important interest for the fisheries sector; it is as important, therefore, to provide for appropriate measures to preserve the trophic chain as it is to provide for aquaculture and the fish processing industry.
