CN104839006A - Cofferdam multiplication method of sargassum thunbergii - Google Patents
Cofferdam multiplication method of sargassum thunbergii Download PDFInfo
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- CN104839006A CN104839006A CN201510295931.3A CN201510295931A CN104839006A CN 104839006 A CN104839006 A CN 104839006A CN 201510295931 A CN201510295931 A CN 201510295931A CN 104839006 A CN104839006 A CN 104839006A
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- cofferdam
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
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Abstract
The invention discloses a cofferdam multiplication method of sargassum thunbergii and belongs to the technical field of restoration of biological resources. By the cofferdam method, sargassum thunbergii seedlings are directly multiplied in the intertidal zone, so that the problem that an existing sargassum thunbergii multiplication method is high in cost and operation difficulty and poor in multiplication effect is solved.
Description
Technical field
The invention belongs to living resources recovery technique field, relate to a kind of cofferdam enrichment procedure of sargassum thunbergii particularly.
Background technology
Tangleweed is mainly distributed in the phytal zone of the intertidal zone of ocean offshore and subtidal zone number meter, is the most important primary producer in coastal waters, in the carbon cycle of coastal waters, plays very important role.The various marine alga sea jungle formed that distributes in flakes can be looked for food for multiple marine animal provides, be perched the place with spawning and hatching, forms the Ecosystem of rich biodiversity, in Offshore Ecology, plays fundamental role.
Sargassum thunbergii is a kind of important kelp that China extensively distributes, and not only has important economic worth, is also the important component part of coastal waters sea jungle.But because the mankind's activities such as marine reclamation land in recent years, port construction, artificial collection are to its destruction, sargassum thunbergii resource receives serious destruction.Thus, the resource recovery of sargassum thunbergii and multiplication technique cause everybody concern just gradually.In the patent announced, the enrichment procedure of sargassum thunbergii and even other tangleweeds is all by the full artificial breeding in workshop, collects seedling, seedling is anchored on the adherance of special facture, then is fixed on intertidal zone by all means under controlled condition.These methods also exist cost intensive prepared by seed breeding and adherance, and the shortcomings such as difficulty when adherance is fixed after collecting seedling is larger, are thus difficult to apply.On the other hand, though natural sargassum thunbergii resource is distributed in intertidal zone, when intertidal zone is bred it, because the ability of the seedling tolerance intertidal zone acute variation natural environmental factors of below 5cm is more weak, often can not obtain desirable cultivation effect.So, need a kind of low cost of invention, the sargassum thunbergii intertidal zone enrichment procedure that easy to operate, cultivation effect is good badly.
Summary of the invention
The technical problem to be solved in the present invention is the cofferdam enrichment procedure providing a kind of sargassum thunbergii, the inventive method directly cultivates sargassum thunbergii seedling until form by cofferdam method in intertidal zone, solve the problem that in sargassum thunbergii enrichment procedure in the past, cost is too high, operation easier is large, cultivation effect is poor.
The present invention is achieved by the following technical solution
A cofferdam enrichment procedure for sargassum thunbergii, directly cultivates sargassum thunbergii seedling until form by cofferdam method in intertidal zone.
A cofferdam enrichment procedure for sargassum thunbergii, it comprises the following steps:
1) addressing in intertidal zone propagation sea area: select that the gradient is little, the depth of water is shallow, tortuous embayed sea area, coastline is so that build for cofferdam; Simultaneously less, the reef substrate of selected sea area stormy waves and tangleweed natural biology amount is less is beneficial to attachment and the survival of breeding marine alga;
2) arrangement of adherance: using the reef of selected sea area nature substrate as the adherance of collecting seedling, by reef surface brush wash clean, and arrangement makes it to be laid in the bottom;
3) construction in cofferdam: when moving back spring tide, in the structure cofferdam, intertidal zone in selected sea area, the height in cofferdam need guarantee that the puddles of water keeps depth of water 40-60cm in cofferdam when moving back spring tide; The symmetrical fixed preset ring of cofferdam dam crest, for the suspension planted vegetables;
4) screening planted vegetables and suspension: at natural waters full, the reproductive cell of screening receptacle maturescent sargassum thunbergii planted vegetables and gather, gather choose opportunities during tide is the little news of death and the minimum news of death, the folder immediately that to plant vegetables after gathering restrict and to be suspended on cofferdam maritime interior waters surperficial, and seedling rope two ends are fixed on the preset ring of cofferdam dam crest;
5) semi: by microscope monitoring reproductive cell maturity, the suspension water layer that plants vegetables is regulated according to during natural lighting intensity, when the ripe ratio of microscopy reproductive cell reaches more than 70%, dry in the shade stimulation is taked to planting vegetables, fertilized egg concentrating is come off in a large number, and the seedling rope that will plant vegetables after fertilized egg comes off in a large number from receptacle takes out;
6) management of intermediate rearing: outside intermediate rearing process cofferdam, seawater enters cofferdam along with periodicity flood tide thus completes the renewal of cofferdam maritime interior waters; The removal of harmful organisms is attached to other assorted algaes on reef and conch or other phytophagy animal mainly through regular manual removal.
7) dismounting in cofferdam: fertilized egg is attached to after on substrate reef, by cofferdam demolition when intermediate rearing to sargassum thunbergii seedling grows to more than 6cm, makes propagation sargassum thunbergii again be in nature seawater environment.
The present invention's beneficial effect compared with prior art:
1, the present invention utilizes natural waters to carry out semi, compared with collecting seedling with continental rise workshop, greatly save nursery place, nursery produce facility and manpower.
2, the present invention utilizes natural reef as adherance, has saved making, cost that transport is relevant with fixation procedure than making adherance.
3, the present invention collects seedling choose opportunities in the little news of death and the minimum news of death, and in this period, peak level also can not exceed the dam crest in built cofferdam at the incoming tide, thus ensures that fertilized egg is not washed away by tidewater from the reef that can be attached to after receptacle comes off bottom cofferdam.Fertilized egg probably completed from being shed to attachment in 48 hours.
4, the present invention carries out under condition in position for the intermediate rearing of the suspension planted vegetables, semi and seedling, and sargassum thunbergii seedling is reform of nature environment more, and cultivation effect is better.
5, sargassum thunbergii length is all in heavy water state at below 6-8cm, overcoming seedling to doing the more weak problem of tolerance, greatly can improve and being proliferated into motility rate.
6, enrichment procedure of the present invention is easy to operate, easily applies.
Embodiment:
Below by embodiment, the technical solution of the present invention is further explained, but protection scope of the present invention is not by any pro forma restriction of embodiment.
A cofferdam enrichment procedure for sargassum thunbergii, it comprises the following steps:
1) addressing in intertidal zone propagation sea area: select that stormy waves is little, coastline is more tortuous, the depth of water is in the intertidal zone of about 30cm after ebb, simultaneously sea area substrate is the less reefs of other tangleweeds of attachment.
2) arrangement of adherance: using the reef of selected sea area nature substrate as the adherance of collecting seedling, by reef surface brush wash clean, and arrangement makes it to be laid in the bottom a little.
3) construction in cofferdam: when moving back spring tide, at selected sea area flood control sandbag and waterproof mortar in structure cofferdam, intertidal zone.Isolate area 40m
2the puddles of water of left and right, about depth of water 50cm.The specification of flood control sandbag is 40cm*60cm; Waterproof mortar is mixed by accelerator, cement and the fine sand ratio according to 1:2:5, and the stirring that adds water.The height in cofferdam is guaranteed to keep about depth of water 50cm in cofferdam when moving back spring tide.The iron hoop of the very useful cement mortar of cofferdam symmetrical fixed preset diameter 10cm is several, for the suspension planted vegetables.
4) screening planted vegetables and suspension: natural waters gather grow fine, receptacle is full, reproductive cell using maturescent sargassum thunbergii as planting vegetables.The folder immediately that to plant vegetables after gathering restrict and to be suspended on cofferdam maritime interior waters surperficial, and seedling rope two ends are fixed on the preset iron hoop of cofferdam dam crest.
5) semi: collect seedling choose opportunities during tide is the little news of death and the minimum news of death, to reduce after fertilized egg comes off to seawater outside cofferdam in the time period of attachment the impact of adhesive rate.By microscope monitoring reproductive cell maturity, regulate according to actual conditions the suspension water layer that plants vegetables at any time, the intensity of illumination that making plants vegetables accepts daytime is at 60-80 μm of olphotons/ (m
2s).When the ripe ratio of microscopy reproductive cell reaches more than 70%, take dry in the shade stimulation to planting vegetables, fertilized egg concentrating is come off in a large number, and the seedling rope that will plant vegetables after fertilized egg comes off in a large number takes out.
6) management of intermediate rearing: fertilized egg is attached to the reef bottom cofferdam through 48 hours after receptacle comes off in a large number, need grow to more than 6cm (about 3 months) through intermediate rearing to seedling.Outside intermediate rearing process cofferdam, seawater enters cofferdam along with periodicity flood tide thus completes the renewal of cofferdam maritime interior waters; The removal of harmful organisms mainly through spring tide at ebb tide manual removal be attached to other phytophagy animals such as assorted algae and conch on reef.
7) cofferdam demolition: fertilized egg, through being attached to after on substrate reef, by cofferdam demolition when intermediate rearing to sargassum thunbergii seedling grows to more than 6cm, makes propagation sargassum thunbergii again be in nature seawater environment.
2013-2014 utilizes the inventive method to test in 2 years, breeds sargassum thunbergii 10.5 ten thousand strain altogether, propagation area 4.2 mu.
Claims (2)
1. a cofferdam enrichment procedure for sargassum thunbergii, is characterized in that it directly cultivates sargassum thunbergii seedling until form by cofferdam method in intertidal zone.
2. the cofferdam enrichment procedure of a kind of sargassum thunbergii according to claim 1, is characterized in that it comprises the following steps:
1) addressing in intertidal zone propagation sea area: select that the gradient is little, the depth of water is shallow, tortuous embayed sea area, coastline is so that build for cofferdam; Simultaneously less, the reef substrate of selected sea area stormy waves and tangleweed natural biology amount is less is beneficial to attachment and the survival of breeding marine alga;
2) arrangement of adherance: using the reef of selected sea area nature substrate as the adherance of collecting seedling, by reef surface brush wash clean, and arrangement makes it to be laid in the bottom;
3) construction in cofferdam: when moving back spring tide, in the structure cofferdam, intertidal zone in selected sea area, the height in cofferdam need guarantee that the puddles of water keeps depth of water 40-60cm in cofferdam when moving back spring tide; The symmetrical fixed preset ring of cofferdam dam crest, for the suspension planted vegetables;
4) screening planted vegetables and suspension: at natural waters full, the reproductive cell of screening receptacle maturescent sargassum thunbergii planted vegetables and gather, gather choose opportunities during tide is the little news of death and the minimum news of death, the folder immediately that to plant vegetables after gathering restrict and to be suspended on cofferdam maritime interior waters surperficial, and seedling rope two ends are fixed on the preset ring of cofferdam dam crest;
5) semi: by microscope monitoring reproductive cell maturity, the suspension water layer that plants vegetables is regulated according to during natural lighting intensity, when the ripe ratio of microscopy reproductive cell reaches more than 70%, dry in the shade stimulation is taked to planting vegetables, fertilized egg concentrating is come off in a large number, and the seedling rope that will plant vegetables after fertilized egg comes off in a large number from receptacle takes out;
6) management of intermediate rearing: outside intermediate rearing process cofferdam, seawater enters cofferdam along with periodicity flood tide thus completes the renewal of cofferdam maritime interior waters; The removal of harmful organisms is attached to other assorted algaes on reef and conch or other phytophagy animal mainly through regular manual removal;
7) dismounting in cofferdam: fertilized egg is attached to after on substrate reef, by cofferdam demolition when intermediate rearing to sargassum thunbergii seedling grows to more than 6cm, makes propagation sargassum thunbergii again be in nature seawater environment.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105993907A (en) * | 2016-06-21 | 2016-10-12 | 山东省海洋生物研究院 | Seedling collecting method and early breeding method of sargassum thunbergii |
| CN106489793A (en) * | 2016-10-25 | 2017-03-15 | 山东省海洋生物研究院 | A kind of Thallus Sargassi Kjellmaniani and Stichopus japonicuss cofferdam polyculture method |
| CN110199867A (en) * | 2019-07-19 | 2019-09-06 | 山东省海洋生物研究院 | A kind of sargassum thunbergii proliferation algal reef system and its application method |
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| CN103004576A (en) * | 2012-12-20 | 2013-04-03 | 山东省海水养殖研究所 | Method for artificially cultivating Sargassum thunbergii in intertidal zones |
| CN103422464A (en) * | 2012-05-15 | 2013-12-04 | 上海市南洋模范中学 | Process for constructing river channel ecological system of hard revetment by aid of cofferdams and floating beds |
| CN103444505A (en) * | 2013-09-05 | 2013-12-18 | 山东省海水养殖研究所 | Method for propagating sargassum thunbergii in intertidal zones |
| CN103651095A (en) * | 2013-12-26 | 2014-03-26 | 安徽理工大学 | Large-scale seaweed seedling culturing and transplanting method |
| JP2014075998A (en) * | 2012-10-10 | 2014-05-01 | Kyowa Concrete Industry Co Ltd | Culture method of seaweed seedling |
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- 2015-06-02 CN CN201510295931.3A patent/CN104839006B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101263780A (en) * | 2008-04-24 | 2008-09-17 | 山东省海水养殖研究所 | Northern sea area Sargassum thunbergii large size seedling seed breeding method ahead of time |
| CN103422464A (en) * | 2012-05-15 | 2013-12-04 | 上海市南洋模范中学 | Process for constructing river channel ecological system of hard revetment by aid of cofferdams and floating beds |
| JP2014075998A (en) * | 2012-10-10 | 2014-05-01 | Kyowa Concrete Industry Co Ltd | Culture method of seaweed seedling |
| CN103004576A (en) * | 2012-12-20 | 2013-04-03 | 山东省海水养殖研究所 | Method for artificially cultivating Sargassum thunbergii in intertidal zones |
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| CN103651095A (en) * | 2013-12-26 | 2014-03-26 | 安徽理工大学 | Large-scale seaweed seedling culturing and transplanting method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105993907A (en) * | 2016-06-21 | 2016-10-12 | 山东省海洋生物研究院 | Seedling collecting method and early breeding method of sargassum thunbergii |
| CN106489793A (en) * | 2016-10-25 | 2017-03-15 | 山东省海洋生物研究院 | A kind of Thallus Sargassi Kjellmaniani and Stichopus japonicuss cofferdam polyculture method |
| CN106489793B (en) * | 2016-10-25 | 2019-04-05 | 山东省海洋生物研究院 | A kind of sargassum kjellmanianum Yendo and sea cucumber cofferdam polyculture method |
| CN110199867A (en) * | 2019-07-19 | 2019-09-06 | 山东省海洋生物研究院 | A kind of sargassum thunbergii proliferation algal reef system and its application method |
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| CN104839006B (en) | 2017-05-03 |
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Address after: Laoshan District 266104 of Shandong province Qingdao city tour Yun Road No. 7 Applicant after: Shandong Marine Biology Institute Address before: Shandong city of Qingdao province Guizhou city 266002 No. 47 Applicant before: Shandong Marine Biology Institute |
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