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Application of marine diatoms as sinonovacula constricta lamarck seedling culture bait

A technique for constricting clams and diatoms, which is applied in the application field of marine diatoms as bait for constricting clams, can solve problems such as inability to meet production and unsatisfactory reproduction speed, and achieve the effect of satisfying large-scale production.

Active Publication Date: 2013-07-24
福建省中灵农业发展有限公司
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Problems solved by technology

[0003] The seedling season of razor razor clams grows very rapidly in autumn every year under the conditions of suitable salinity (10-15) and suitable temperature (20-25°C). Generally, the weight can increase by 4-10 times in 5 days, which means rapid growth. With the need for more bait supply, the currently selected microalgae with good bait effects in the production of shellfish seedlings include Chaetoceros, Chrysophytes, and Platyphytes, but in the existing mudflat shellfish seedling fields Under the technical conditions of razor razor clam seedlings, the propagation speed of these conventional microalgae is not ideal enough to meet the needs of production. Feed microalgae species with extremely fast mass reproduction

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  • Application of marine diatoms as sinonovacula constricta lamarck seedling culture bait

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Embodiment Construction

[0014] The various components used in the culture medium of the present invention are commonly used medicines in microalgae cultivation, and the present invention uses the interaction between medicines. Moreover, in the cultivation of Thalassiosira wilsonii, in addition to the selection of the medium, other cultivation methods can adopt the disclosed cultivation method of Thalassiosira witschneri. For the cultivation of razor clam spat, the disclosed method is also selected.

[0015] The present invention will be described in detail below in conjunction with examples.

[0016] 1. Expanded cultivation of Thalassiosira wissonii

[0017] Inoculate Thalassiosira wilsonii algae into a 2500mL glass Erlenmeyer flask, which contains the culture medium used for primary culture, and the formula of the culture medium is 90 mg KNO per liter of seawater 3 , 40 mg KH 2 PO 4 , 15 mg Na 2 SiO 3 , 0.25mg MnSO 4 ·H 2 O, 2.50 mg FeSO 4 ·7H 2 O, 20 mg EDTA-Na 2 , 2 mg α-Naphthylacet...

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Abstract

The invention provides application of marine diatoms as a sinonovacula constricta lamarck seedling culture bait. The method comprises a step of: selecting Thalassiosira weissflogii, carrying out three-level enlarge cultivation by adopting a specific culture solution formula, and feeding the marine diatoms after the average body length of sinonovacula constricta lamarck juvenile mollusks is more than 0.45mm. The marine diatoms reproduction velocity is very fast by utilizing the culture solution formula provided by the invention; and moreover, the growing velocity of the sinonovacula constricta lamarck juvenile mollusks can be obviously accelerated after the marine diatoms are fed in a feeding mode provided by the invention.

Description

technical field [0001] The invention belongs to the technical field of aquaculture bait cultivation and feeding, and in particular relates to the application of marine diatoms as razor clam bait, that is, Thalassiosira weissflogii is used as bait in a specific stage of growth of Sinonovacula constricta Lamarck Carry out throwing something to feed, to improve the growth rate of razor clam seedlings. Background technique [0002] Constricted razor clam (Sinonovacula constricta Lamarck), belonging to the phylum Mollusca, class Lamellibranchia, order Eulamellibranchia, family Solenidae, genus Sinonovacula, is one of the four traditional species in my country. One of the cultured shellfish occupies an important position in my country's mariculture industry. However, due to a large number of reclamation and industrial pollution along the coast, the natural seed resources of razor clams have been severely damaged, and the production of razor clams has increasingly relied on artific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/18A23K1/14A01K61/00
CPCY02A40/81
Inventor 杨淑娴徐继林周成旭周海波马斌严小军
Owner 福建省中灵农业发展有限公司
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