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Method for culturing cyprids of balanus reticulates on large scale

A technology of reticulated barnacles and Venus larvae, applied in the direction of animal husbandry, etc., can solve the problems of no technical solutions for the cultivation and storage of reticulated barnacles, unsuitable cultivation of reticulated barnacle larvae, and hindrance of larvae feeding, etc., to achieve The effect of strong adhesion synchronization, promotion of synchronization, and long storage period

Inactive Publication Date: 2009-11-18
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Prior art has disclosed the cultivation method about grain barnacle, but (1) this kind of organism is different with net grain barnacle, and it is mainly the dominant species of fouling organism in northern sea area, and net grain barnacle is tropical subtropical warm water species, It is a dominant species of representative fouling organisms in the coastal sea area of ​​South China; (2) Fresh seawater needs to be replaced every 24 hours in the process of cultivating barnacles, which increases the workload; (3) the bait for cultivating barnacles is Scleralis sp. (Platymonas helgolandica Kylin var.tsingtaoensis Tseng et T.J.Chang var.nov.); (4) The cultivation is carried out under the condition of no light, which will easily cause the algae as bait to sink to the bottom and hinder the feeding of the larvae; (5) This method does not Discuss the method of storing Venus larvae for backup. The obtained Venus larvae must be used in research and testing in time, otherwise, Venus larvae will soon appear metamorphosis; For statistical analysis, usually only 2 parallel replicate samples are set; however, currently widely used biostatistical analysis methods require that each group (including blank group, control group, and experimental treatment group) need to set up 3 to 5 parallel replicate samples, each parallel replicate The number of larvae in the sample is about 30, which leads to a significant increase in the number of larvae required for testing than in the past. The number of larvae obtained in one batch of culture may not meet the number required for the test experiment.
Therefore prior art does not solve the technical scheme of reticulated barnacle cultivation and storage, and reticulated barnacle and pattern barnacle are two different species, and the method for cultivating pattern barnacle larva is also not suitable for the growth of reticulated barnacle larvae. nourish

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The culture medium is natural seawater, and after the seawater is filtered, boiled and sterilized, and cooled to room temperature, it is placed in a high-temperature sterilized vessel for use.

[0027] Collect mature individuals of reticulated barnacles, and select larger individuals when sampling, and the appearance is intact.

[0028] Dissect adult barnacles, select mature fertilized egg pieces and put them into a 500ml beaker equipped with sterilized seawater for hatching (the 500ml beaker selected in this embodiment refers to the beaker used when collecting barnacle egg pieces and hatching nauplii, because the beaker is too large. Easy to operate, but the beaker is too small and there is little water, which is not conducive to separating the unhatched egg masses from the hatched nauplii, the same below), and then move the collected nauplii into a 1000ml beaker to cultivate according to the following steps:

[0029] (1) After the eggs of netted barnacles hatch into n...

Embodiment 2

[0035] The culture medium is natural seawater, and after the seawater is filtered, boiled and sterilized, and cooled to room temperature, it is placed in a high-temperature sterilized vessel for use.

[0036] Collect mature individuals of reticulated barnacles, and select larger individuals when sampling, and the appearance is intact.

[0037] Adult barnacles were dissected, mature fertilized eggs were selected and incubated in a 500ml beaker filled with sterilized seawater, and then the collected nauplii were cultured according to the following steps:

[0038] (1) After the eggs of reticulated barnacles hatch into nauplii, seawater is used as the culture medium (1000ml), and subcordate flat algae is the bait (2.5~3.0×105 cells / ml), cultured at room temperature (25-28°C) in a dark environment; the density of larvae in seawater is 1-2 / ml;

[0039] (2) The beaker containing the barnacle larvae was subjected to natural light for 1 hour every morning and evening;

[0040] In the ...

Embodiment 3

[0044] The culture medium is natural seawater, and after the seawater is filtered, boiled and sterilized, and cooled to room temperature, it is placed in a high-temperature sterilized vessel for use.

[0045] Collect mature individuals of reticulated barnacles, and select larger individuals when sampling, and the appearance is intact.

[0046] Adult barnacles were dissected, mature fertilized eggs were selected and incubated in a 500ml beaker filled with sterilized seawater, and then the collected nauplii were grouped and cultured according to the following steps:

[0047] (1) be divided into four groups and carry out, after the ovum hatching of reticulated barnacles is all treated as nauplii in the early stage, take 1000ml seawater as culture medium, subcardioid flat algae as bait, put nauplii into incubator Cultivate in a dark environment at a constant temperature of 29-31°C; the density of larvae in seawater is 2 / ml;

[0048] The difference between the four experimental gr...

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PUM

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Abstract

The invention discloses a method for culturing cyprids of balanus reticulates on a large scale, which comprises the following steps: after ovum of the balanus reticulates is bred into naupliar larva, putting the naupliar larva into a culture medium with bait for constant temperature culture in dark environment; performing intermittent lighting on the naupliar larva in the constant temperature culture process; and performing cold storage on the appeared cyprids. The method can overcome the defects of high death rate, small and unstable yield, quick settlement and metamorphosis processes, incapacity of storage and accumulation and the like in the breeding process of the cyprids, greatly improve the yield of the cyprids, effectively prolong the time of a drifting stage of the cyprids, promote the settlement synchrony of the cyprids, and provide required experimental materials for screening marine fouling organism antifouling compositions and studying environmental toxicology, along with wide application prospect.

Description

technical field [0001] The invention belongs to the field of biotechnology, and relates to a method for cultivating netted barnacle Venus larvae in large quantities. Background technique [0002] Marine fouling organisms are the general term for animals, plants and microorganisms that inhabit or attach to ships and various underwater artificial facilities in the marine environment, adversely affect human economic activities, and bring negative benefits to investors . The attachment of fouling organisms to the ship will reduce the speed of the ship, reduce the inner diameter of the pipeline, change the metal corrosion process, and even cause the navigation mark to shift; the attachment to the aquaculture facility will occupy the effective attachment surface of some aquaculture objects, hindering the net cage. The exchange of internal and external water bodies affects the growth and development of the cultured objects; and some species (such as barnacles) have strong adhesion...

Claims

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Application Information

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IPC IPC(8): A01K67/033
Inventor 严涛曹文浩严文侠董钰
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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