CN104839056B - A kind of analogy method of negative effect caused by juvenile fish breaks out in control Ecological Restoration Project using filter feeder - Google Patents
A kind of analogy method of negative effect caused by juvenile fish breaks out in control Ecological Restoration Project using filter feeder Download PDFInfo
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- CN104839056B CN104839056B CN201510244868.0A CN201510244868A CN104839056B CN 104839056 B CN104839056 B CN 104839056B CN 201510244868 A CN201510244868 A CN 201510244868A CN 104839056 B CN104839056 B CN 104839056B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
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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
- Y02A40/81—Aquaculture, e.g. of fish
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- Biodiversity & Conservation Biology (AREA)
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Abstract
The present invention provides the analogy method that juvenile fish in a kind of control Ecological Restoration Project using filter feeder breaks out caused negative effect, the analogy method includes deposit preparation, lake water prepares, add Corbicula fluminea and carp starts to test and sampled, wherein the Corbicula fluminea added, the density design of carp are the processing of Corbicula fluminea density（0th, 60 and 180）, being scaled biomass in unit area is then（0、214g/m2With 643 g/m2）；Carp density（1 tail and 3 tails）, being scaled biomass in unit area is then（4.3g/m2With 12.9 g/m2）.The experimental ecology method that the present invention uses according to ecological principle, realize the simulation of negative effect caused by accurately breaking out juvenile fish in control Ecological Restoration Project, utilize bio operon principle, add filter feeder-Corbicula fluminea, control carp kidney cell to break out caused deposit suspension by Corbicula fluminea, improve water body illumination condition, so as to reach the purpose for repairing eutrophication water, this method has the characteristics that safety, cost are low.
Description
Technical field
The present invention relates to environmental technology field, and in particular to juvenile fish breaks out in a kind of filter feeder control Ecological Restoration Project
The analogy method of caused negative effect.
Background technology
Using classical biomanipulation come to improve water transparency be then one of most important premise of Water Ecological Recovery, so
And biomanipulation encounters many challenges in the practical application of lake ecosystem reparation.Bio operon is unsuccessful
Reason is considerably complicated, in general, can subtract mainly due to the trophic cascade effect in long food chain as trophic level increases
Trophic cascade non-linear relation present in weak and complicated food web, so that the effect of restoration of the ecosystem is unsatisfactory.It is raw
Increasing sharply for juvenile fish quantity seems inevitable after thing manipulates, and this is the main reason of restoration of the ecosystem failure, and richness is sought
The high increased speed of water body juvenile fish quantity of the degree of supporting is relatively fast.Largely newly-increased juvenile fish produces greatly negative to restoration of the ecosystem
Influence.First, though the small consuming capacity of juvenile fish is strong, can ingest the zooplankter suitable with own body weight daily, in growth course
A large amount of nutritive salt can also be drained, row effects in generation.Secondly, the bottom for often having significant proportion in juvenile fish composition is dwelt feeding fish,
The foraging activity of benthic fishes not only makes deposit Nutrient release, promotes planktonic algae growth, it is often more important that, moreover it is possible to make to sink
Product thing suspends, and greatly reduces water transparency, causes transformation of the clear water state to muddy water state.
Therefore, the feeding habits juvenile fish that dwells of the bottom after restoration of the ecosystem how is controlled to break out caused negative effect, eutrophic water
The final successful key of body ecological reestablishment.
The content of the invention
It is negative caused by being broken out it is an object of the invention to provide one kind using juvenile fish in filter feeder control Ecological Restoration Project
The analogy method of effect, the analogy method are obtained in eutrophication water by accurate simulated experiment（Such as lake, pond）
In the juvenile fish that can promptly reduce that is used break out caused high suspended matter concentration, improve water body illumination condition, so as to reach
Repair the purpose method of eutrophication water.
The analogy method of negative effect caused by the present invention is broken out using juvenile fish in filter feeder control Ecological Restoration Project, institute
The method stated includes deposit preparation, lake water prepares, add Corbicula fluminea and carp starts to test and sampled.
Further, the analogy method particular technique method is：
（1）The preparation of deposit：Deposit is sieved from Taihu Lake and fully mixed, and described deposit is dispensed in each bucket,
Thick 10cm；Described bucket is 400L glass steel materials, light tight, 3 parallel totally 18；
（2）Lake water prepares：Filtering TAIHU LAKE is simultaneously mixed, and each experiment bucket is clarified 5 days after first adding half lake water, then by bucket
Water is filled it up with；Water sample is gathered, the initial hydration index of determination experiment, as background values, water temperature is consistent between each bucket；
（3）Add Corbicula fluminea, the formal beginning of carp experiment；
（4）Sampling：Water sampling once gathers 4 times for 4 days.Hydration index is analyzed, using office software Microsoft
Excel carries out calculating processing to data, and ANOVA methods are analyzed data difference in statistic software SPSS.
Further, the step（1）Middle deposit crosses 60 mesh stainless steels sieve；The step（2）In lake water cross 500 mesh
Phytoplankton net, the hydration index are chlorophyll a（Chl a）, total nitrogen（TN）, total phosphorus（TP）, suspension（SS）And dissolved oxygen amount
（OD）.
Further, the step（4）Middle Corbicula fluminea, the density design of carp are the processing of Corbicula fluminea density（0th, 60 and 180）,
Being scaled biomass in unit area is then（0、214g/m2With 643 g/m2）；Carp density（1 tail and 3 tails）, it is scaled unit plane
Accumulating biomass is then（4.3g/m2With 12.9 g/m2）.
Further, the long 20-25 mm of above-mentioned Corbicula fluminea shell, high 10-20 mm, the carp fish length 6-8 cm.
Further, above-mentioned Corbicula fluminea selection 2-3 g, carp selection 2-4 g, are taken from Taihu Lake.
The experimental ecology method that the present invention uses according to ecological principle, realize accurately to controlling restoration of the ecosystem work
The simulation of negative effect caused by juvenile fish breaks out in journey, using bio operon principle, filter feeder-Corbicula fluminea is added, passes through Corbicula fluminea control
Deposit caused by carp kidney cell processed breaks out is suspended, improves water body illumination condition, and eutrophication water is repaired so as to reach
Purpose, this method have the characteristics that safety, cost are low.
Brief description of the drawings
The concentration (average value ± standard error) of Fig. 1 chlorophyll as.
Fig. 2 suspensions TSS concentration (average value ± standard error).
Embodiment
In this analogy method, experiment bucket size is 400L glass steel materials, light tight.
In this analogy method, Corbicula fluminea comes from Taihu Lake, density processing（0th, 60 and 180）, it is scaled biomass in unit area
It is then（0、214g/m2With 643 g/m2）；Carp also comes from Lake Taihu gulf mouth（The a length of 6-8 cm of body）, density（1 tail and 3
Tail）, being scaled biomass in unit area is then（4.3g/m2With 12.9 g/m2）.3 parallel totally 18 buckets.Mix bottom mud in Taihu Lake；It is floating
Swim plant net filtration TAIHU LAKE；Corbicula fluminea selects 2-3 g specifications, carp selection 2-4 g.
The Corbicula fluminea of embodiment 1 suppresses the analogy method that deposit suspends
Analogy method of the present invention includes following process：
（1）Deposit prepares：Deposit comes from Taihu Lake, crosses 60 mesh stainless steels sieve, and fully mixes, each experiment bucket packing
10cm；
（2）Lake water prepares：Taihu Lake lake water filtering（500 mesh nylon screens）And mix, each experiment bucket first adds half lake water
Clarify 5 days afterwards, then inner bucket water is filled it up with.Gather water sample, the initial hydration index chlorophyll a of determination experiment（Chl a）, total nitrogen
（TN）, total phosphorus（TP）, suspension（SS）And dissolved oxygen amount（OD）Deng as background values；
（3）Corbicula fluminea, the formal beginning of carp experiment are added simultaneously；
（4）Sampling：Water sampling once gathers 4 times for 4 days；Analyze hydration index, its method foundation《Lake ecological investigation is seen
Survey and analyze》.Data are carried out with calculating processing using office software Microsoft Excel, ANOVA side in statistic software SPSS
Method is analyzed data difference.
Simulated experiment result shows that carp disturbance dramatically increases water body chlorophyll content.Fig. 1 can be seen that identical Corbicula fluminea number
In the case of amount, the Chlorophyll-a Contents of three fishes is apparently higher than fish.Reduction effect of the Corbicula fluminea to chlorophyll a is obvious.It is high
The Corbicula fluminea group of density is significantly higher than Midst density group Corbicula fluminea and does not put the group of Corbicula fluminea.Midst density group difference compared with no Corbicula fluminea group
Significantly.Chl-a concentration is 4.12 μ g/L in the bucket of one tail when Corbicula fluminea density reaches 180, chl-a concentration in the bucket of three tails
For 10.32 μ g/L.It is in a relatively low level.The influence that carp disturbed belt comes is in a kind of state of elimination.
Simulated experiment result shows that carp disturbance dramatically increases water body TSS concentration.Fig. 2 can be seen that identical Corbicula fluminea quantity
In the case of, the TSS concentration of three fishes is apparently higher than fish.Reduction effect of the Corbicula fluminea to suspension is obvious.It is highdensity
Corbicula fluminea group is significantly higher than Midst density group Corbicula fluminea and does not put the group of Corbicula fluminea.Midst density group significant difference compared with no Corbicula fluminea group（P
<0.05）.Water body recovery technology change in concentration trend and the variation tendency of chlorophyll a are consistent with each other.
According to this experiment and the result of preliminary experiment, Corbicula fluminea breeding density is 500-700g/m2, carp kidney cell density domination
Scope is 0-30 g/m2；According to this experiment and the result of preliminary experiment, carp kidney cell specification uses the skill when being no more than 100g/ tails
Art.
2nd, the application in lake eutrophication water remediation
The restoration of the ecosystem demonstration project of Wuxi Lake Wuli, 50000 square metres of demonstration project area, in May, 2010 start to apply
Work, July, there are a large amount of carp kidney cells in Ecological Restoration Area, and water body is muddy, only 30 centimetres of water transparency, launches Corbicula fluminea immediately
Afterwards, transparency is improved to more than 90 centimetres, and water body is limpid, and water quality is good.
Claims (1)
1. a kind of analogy method of negative effect caused by juvenile fish breaks out in control Ecological Restoration Project using filter feeder, its feature
It is, the analogy method includes deposit preparation, lake water prepares, adds Corbicula fluminea and carp and sampling;
The analogy method is specially：
（1）The preparation of deposit：Deposit is sieved from Taihu Lake and fully mixed, and described deposit is dispensed in each bucket, thick
10cm；Described bucket is 400L glass steel materials, light tight, 3 parallel totally 18；
（2）Lake water prepares：Filtering TAIHU LAKE simultaneously mixes, and is clarified 5 days after half lake water is first added in each bucket, then by inner bucket water
Fill it up with；Water sample is gathered, the initial hydration index of determination experiment, as background values, water temperature is consistent in each bucket；
（3）Add Corbicula fluminea, carp；
（4）Sampling：Water sampling once gathers 4 times for 4 days；Hydration index is analyzed, using office software Microsoft Excel couple
Data carry out calculating processing, and ANOVA methods are analyzed data difference in statistic software SPSS;
The step（1）Middle deposit crosses 60 mesh stainless steels sieve；The step（2）In lake water cross 500 mesh phytoplankton nets；Institute
It is chlorophyll a to state hydration index（Chl a）, total nitrogen（TN）, total phosphorus（TP）, suspension（SS）And dissolved oxygen amount（OD）;
The step（3）The Corbicula fluminea of middle addition, the density design of carp are that Corbicula fluminea density handles 0,60 and 180, are scaled list
Plane product biomass is then 0,214g/m2With 643 g/m2；The tail of carp density 1 and 3 tails, being scaled biomass in unit area is then
4.3g/m2With 12.9 g/m2;The long 20-25 mm of Corbicula fluminea shell, the high 10-20 mm, the carp fish length 6-8 cm;
The Corbicula fluminea specification selects 2-3 g, carp specification selection 2-4 g, is all from Taihu Lake.
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| CN109644900A (en) * | 2018-12-05 | 2019-04-19 | 北京师范大学 | A kind of method of determining Fish Communities revegetation potentiality |
| CN110275003B (en) * | 2019-05-13 | 2020-03-06 | 中国科学院南京地理与湖泊研究所 | Method for screening and repairing shellfish in water body with high suspended matter concentration |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1623935A (en) * | 2004-11-10 | 2005-06-08 | 中国科学院南京地理与湖泊研究所 | Method for recovering aquatic ecology system of nutrition-enriched water of lake |
| CN1683258A (en) * | 2005-03-17 | 2005-10-19 | 中国科学院南京地理与湖泊研究所 | Method for purifying rich nutritive water |
| CN1887742A (en) * | 2005-06-30 | 2007-01-03 | 宝山钢铁股份有限公司 | Controllable fast reservior blue-green alga bloom eliminating method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1623935A (en) * | 2004-11-10 | 2005-06-08 | 中国科学院南京地理与湖泊研究所 | Method for recovering aquatic ecology system of nutrition-enriched water of lake |
| CN1683258A (en) * | 2005-03-17 | 2005-10-19 | 中国科学院南京地理与湖泊研究所 | Method for purifying rich nutritive water |
| CN1887742A (en) * | 2005-06-30 | 2007-01-03 | 宝山钢铁股份有限公司 | Controllable fast reservior blue-green alga bloom eliminating method |
Non-Patent Citations (1)
| Title |
|---|
| 《太湖河蚬（Corbicula fluminea）对富营养水体水质的改善作用》;朱小龙等;《湖泊科学》;20150506;第27卷(第3期);487-492 * |
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