NO131425B - - Google Patents
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- Publication number
- NO131425B NO131425B NO743883A NO743883A NO131425B NO 131425 B NO131425 B NO 131425B NO 743883 A NO743883 A NO 743883A NO 743883 A NO743883 A NO 743883A NO 131425 B NO131425 B NO 131425B
- Authority
- NO
- Norway
- Prior art keywords
- crab
- park according
- bottoms
- space
- park
- Prior art date
Links
- 241000238557 Decapoda Species 0.000 claims description 5
- 239000013535 sea water Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000004568 cement Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Landscapes
- Farming Of Fish And Shellfish (AREA)
Description
Krabbepark. Crab park.
Der er tidligere blitt gjort forsøk med å f6re krabber i beholdere som er anbragt i sjøen, såkalte krabbeparker, men uten synderlig hell. Krabbene viste nemlig en stor dødelighetsprosent, hvilket skyldes at de forgiftes av sine egne ekskrementer. Ved sterk foring ble de etter en måneds tid fullmettet og hadde derfor et tilsvarende sterkt stoffskifte. Attempts have previously been made to feed crabs in containers placed in the sea, so-called crab parks, but without much success. The crabs showed a high mortality rate, which is due to the fact that they are poisoned by their own excrement. With heavy feeding, they were fully saturated after a month and therefore had a correspondingly strong metabolism.
I forbindelse med beholdere for levende fisk og fiskeyngel er det kjent å anvende dobbelt bunn, av hvilke bunner den øvre er gjennombrutt for at ekskrementer og avfall kan synke ned. En således utført beholder vil ikke gi en tilstrekkelig effektiv bortledning av avfallet når beholderen anvendes til krabbepark, og hensikten med oppfinnelsen er å avhjelpe denne mangel, hvilket oppnås ved at mellomrommet mellom bunnene er innrettet for gjennom-strømming av vann for bortskylling av ekskrementene og avfallet som har samlet seg i dette mellomrom. Ifølge et videre trekk er der på den øvre, gjennombrutte bunn lagt et lag singel, pukk eller grov sand, hvori krabbene kan grave seg ned. Disse trekk kan både anvendes på krabbeparker som er anbragt i sjøen og ved så-danne som befinner seg på land. I først-nevnte tilfelle kan den undre bunn være mer eller mindre tett, mens to eller flere av de vertikale sidevegger er helt eller delvis gjennombrutt for at mellomrommet mellom bunnene kan gjennomstrømmes av sjøvannet mest mulig i horisontal retning. In connection with containers for live fish and fish fry, it is known to use a double bottom, of which bottoms the upper one is pierced so that excrement and waste can sink down. A container made in this way will not provide a sufficiently efficient drainage of the waste when the container is used for a crab farm, and the purpose of the invention is to remedy this deficiency, which is achieved by the space between the bottoms being designed for the flow of water to flush away the excrement and the waste which have gathered in this space. According to a further feature, a layer of shingle, crushed stone or coarse sand is laid on the upper, broken bottom, in which the crabs can burrow. These features can be applied both to crab farms that are located in the sea and to those that are located on land. In the first-mentioned case, the lower bottom can be more or less dense, while two or more of the vertical side walls are completely or partially broken through so that the space between the bottoms can flow through the seawater as much as possible in a horizontal direction.
Et utførelseseksempel på oppfinnelsen er vist på tegningen, hvor fig. 1 viser et tverrsnitt, fig. 2 et lengdesnitt og fig. 3 et grunnriss av beholderen eller krabbepar-ken. An embodiment of the invention is shown in the drawing, where fig. 1 shows a cross-section, fig. 2 a longitudinal section and fig. 3 a ground plan of the container or crab park.
Beholderen kan støpes av sement og har vertikale vegger 1, en undre bunn 2 og en øvre bunn 3 samt et tak 4. Den kan også, som fig. 3 viser, være bygget av vertikale stolper 5 av sement eller tre med lengdevegger 6 og tverrvegger av vertikale stenger 7. I det ene lengderom er bunnen antydet i form' av en rist, av tverrliggende stenger eller lister 8. De vertikale vegger 6 kan bestå av parallelle horisontale stenger. Bunnen 2 kan være glattslipt sement eller tre. The container can be cast from cement and has vertical walls 1, a lower bottom 2 and an upper bottom 3 as well as a roof 4. It can also, as fig. 3 shows, be built of vertical posts 5 of cement or wood with longitudinal walls 6 and transverse walls of vertical rods 7. In one longitudinal space, the bottom is indicated in the form of a grid, of transverse rods or strips 8. The vertical walls 6 can consist of of parallel horizontal bars. The base 2 can be smooth ground cement or wood.
På den øvre bunn anbringes der hensiktsmessig et lag pukk, singel eller grov sand som, foruten å renses ved sjøvannets naturlige sirkulasjon, også med passende mellomrom kan spyles. A layer of crushed stone, shingle or coarse sand is placed on the upper bottom where appropriate, which, in addition to being cleaned by the natural circulation of the seawater, can also be flushed at suitable intervals.
Forøvrig kan de vertikale vegger være helt eller delvis gjennombrutt, særlig de vegger som ligger på tvers av sjøvannets strømningsretning. Otherwise, the vertical walls can be completely or partially broken through, especially the walls that lie across the direction of the seawater's flow.
Den øvre bunn kan også være gjennombrutt enten bare ved veggene eller i midten, idet veggene da kan være ugjen-nombrutt. Disse åpninger i den øvre bunn må være så små at singlen og sanden ikke kan vaskes ut. The upper bottom can also be broken through either only at the walls or in the middle, as the walls can then be double-broken. These openings in the upper bottom must be so small that the single and the sand cannot be washed out.
En annen variasjon består i at der kan være anordnet spjeld til å stenge og åpne for åpningene i bunn eller vegg, slik at man, når parken står på land, kan åpne spjeldet, gjennomspyle singelen etc. og så stenge spjeldet og igjen fylle parken passende med vann. Another variation is that a damper can be arranged to close and open the openings in the bottom or wall, so that, when the park is on land, you can open the damper, flush the shingle etc. and then close the damper and fill the park appropriately again with water.
Den øvre gjennombrutte bunn behøver ikke nødvendigvis være en bunn som så-dan, men kan bestå av oversiden av et lag The upper pierced bottom does not necessarily have to be a bottom as such, but can consist of the upper side of a layer
hensiktsmessig grov singel eller pukk, på suitably coarse shingle or crushed stone, on
hvilket der' eventuelt er anbragt et lag fi-nere singel som krabbene kan grave seg where a layer of finer shingle is placed where the crabs can dig
ned i. Det undre grovere singel- eller pukk-lag vil da lett kunne gjennomskylles fra down in. The coarser shingle or crushed stone layer will then be easily rinsed off
tid til annen med en kraftig horisontal from time to time with a strong horizontal
vannstrøm for bortledning av avfallet. water flow for disposal of the waste.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO743883A NO131425C (en) | 1968-08-17 | 1974-10-28 |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681793218 DE1793218C3 (en) | 1968-08-17 | 1968-08-17 | Water-soluble 21-hemisulfate alkali metal compounds of 6 a-fluoro-11 ß, 21-dihydroxy-16 a-methyl-3,20-dioxo-1,4-pregnadienes, processes for their preparation and pharmaceuticals containing them |
DE1902651A DE1902651C3 (en) | 1969-01-15 | 1969-01-15 | New corticosteroid-21-monophosphates, processes for their preparation and medicinal products containing them |
DE19691920634 DE1920634C3 (en) | 1969-04-19 | 1969-04-19 | Water-soluble corticosteroid-21-aminoacylates, processes for their preparation and pharmaceuticals containing them |
NO3303/69A NO131427C (en) | 1968-08-17 | 1969-08-15 | |
NO743883A NO131425C (en) | 1968-08-17 | 1974-10-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
NO131425B true NO131425B (en) | 1975-02-17 |
NO131425C NO131425C (en) | 1975-05-28 |
Family
ID=27509990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO743883A NO131425C (en) | 1968-08-17 | 1974-10-28 |
Country Status (1)
Country | Link |
---|---|
NO (1) | NO131425C (en) |
-
1974
- 1974-10-28 NO NO743883A patent/NO131425C/no unknown
Also Published As
Publication number | Publication date |
---|---|
NO131425C (en) | 1975-05-28 |
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