Employees of the Laboratory of Hydrobiology and hydroanalytics of the head division of the LLP "NPC of Fisheries" continue to observe the polychaete Hediste diversicolor (O.F. Müller, 1776).
The joint maintenance of oligochaetes and chironomids with polychaetes showed that hedista, being a polyphage, prefers live food if there is a choice.
Marked selectivity is noted: first of all, small oligochaetes are issued. In the absence of oligochaetes, larger and tougher larvae of chironomids are actively consumed, which may pose a threat to undermine the native fauna of reservoirs of the chironomid-oligochaete type.
Larvae of blood-sucking mosquitoes are used only by large polychaetes in the absence of other food.
The work is carried out within the framework of the project "Development of scientifically-based recommendations for improving the fish productivity of fishery reservoirs through the introduction and reintroduction of fish and hydrobionts – components of the fish food base".
Marked selectivity is noted: first of all, small oligochaetes are issued. In the absence of oligochaetes, larger and tougher larvae of chironomids are actively consumed, which may pose a threat to undermine the native fauna of reservoirs of the chironomid-oligochaete type.
Larvae of blood-sucking mosquitoes are used only by large polychaetes in the absence of other food.
The work is carried out within the framework of the project "Development of scientifically-based recommendations for improving the fish productivity of fishery reservoirs through the introduction and reintroduction of fish and hydrobionts – components of the fish food base".