SU1644855A1

SU1644855A1 - Arrangement for spawning fish

Info

Publication number: SU1644855A1
Application number: SU894675842A
Authority: SU
Inventors: Борис Семенович Малеванчик
Original assignee: Всесоюзный проектно-изыскательский и научно-исследовательский институт "Гидропроект" им.С.Я.Жука
Priority date: 1989-04-11
Filing date: 1989-04-11
Publication date: 1991-04-30

Abstract

Изобретение относитс к рыбоводству и направлено на регулирование процесса заполнени производител ми рыб секций нерестовых каналов, оптимальное использование их нерестовых площадей и повышение тем самым промыслового возврата от рыб, полученных в результате нереста производителей. Дл этого между двум нерестовыми каналами (К) 1 со ступенчато понижающимс руслом, на котором размещен субстрат 3, располагают рыбоходный лоток (Л) 6. Л б и К 1 имеют общие разделительные стенки 7 и 8. В К 1 установлены возвышающиес над субстратом 3 упоры 4, раздел ющие К 1 на секции 5, расположенные в шахматном пор дке. В стенке 7 выполнены вплывные отверсти 17, 19,21,23, 25, а в стенке 8 - отверсти 18, 20, 22,24,26, сужающие дл пропуска производителей в секции 5 К 1. Отверсти 17, 19, 21, 23, 25 смещены относительно отверстий 18,20,22, 24, 26, а Л 6 оборудован подвижным щитом 27, что позвол ет поочередно заполн ть секции 5 производител ми, контролиру их количество.Л 6 и К 1 оборудованы затворами 9, 13 в верховой части и затворами 11 и 15 в низовой части, которые имеют водопропускные отверсти и служат дл создани требуемого гидравлического режима. 3 ил.The invention relates to fish farming and is aimed at regulating the process of filling of spawning channels by fish producers, the optimum use of their spawning areas, and thereby increasing the commercial return from fish obtained as a result of spawning of producers. For this, between the two spawning channels (K) 1 with a stepped lowering channel on which substrate 3 is placed, a fish passage tray (L) 6 is placed. L b and K 1 have common dividing walls 7 and 8. In K 1, mounted above the substrate 3 stops 4 separating K 1 into sections 5, arranged in a checkerboard pattern. In wall 7 there are vent holes 17, 19,21,23, 25, and in wall 8 there are holes 18, 20, 22,24,26, narrowing for passage of manufacturers in section 5 K 1. Holes 17, 19, 21, 23 , 25 are offset from the openings 18,20,22, 24, 26, and Л 6 is equipped with a movable shield 27, which allows alternately filling sections 5 with manufacturers, controlling their number. A 6 and K 1 are equipped with gates 9, 13 in the upper parts and closures 11 and 15 in the lower part, which have culverts and serve to create the desired hydraulic mode. 3 il.

Description

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Claims

Claim

A device for spawning fish, containing a pair of spawning channels with a stepped lowering channel, a substrate laid on the channel 15, transverse stops installed in the channels with elevation above the substrate, dividing the channels into sections, and shutters located at the ends of the channels, characterized in that, for the purpose of 20 regulation of the process of filling spawning canal sections by producers, the optimal use of their spawning areas and thereby increasing the commercial return from fish obtained as a result of spawning of producers, it It is fitted with a fish passage tray mounted between spawning channels with the formation of common dividing walls, the latter have floating holes for fish, each of which serves to communicate with the tray from one of the spawning channel sections, channel sections are staggered, and the swimming holes of one wall are offset relative to the swimming holes of the other wall, while the fish entry tray is equipped with shutters installed on its ends and a shield fixed with the possibility of movement along the tray.