Efficient cultivation method for ruditapes philippinarum northern indigenous group in huanghai and bohai sea intertidal zone mud flat

Abstract

The invention provides an efficient cultivation method for a ruditapes philippinarum northern indigenous group in the huanghai and bohai sea intertidal zone mud flat, and belongs to the technical field of aquaculture. The efficient cultivation method for the ruditapes philippinarum northern indigenous group in the huanghai and bohai sea intertidal zone mud flat comprises the following steps that ruditapes philippinarum seedlings are cultivated in a pond to the north of the northern Jiangsu coastal region of the China until large-size ruditapes philippinarum seedlings with the shell length notsmaller than 2.5 cm and the total wet weight not smaller than 2.5 g are obtained; in September to October every year, the large-size ruditapes philippinarum seedlings are evenly sown on the huanghai and bohai sea intertidal zone mud flat; and in the culture period, harmful organisms of the ruditapes philippinarum are intensively removed in spring and summer, culture indexes of seawater are regularly detected, and the ruditapes philippinarum is harvested after being cultured for 7-10 months. The large-size ruditapes philippinarum is bred in a huanghai and bohai sea intertidal zone, the breedingsurvival rate is greatly increased, the breeding period is shortened, the waste mud flat is recovered and utilized, and the breeding benefit is improved.

Description

technical field

[0001] The invention belongs to the technical field of aquaculture, and in particular relates to a high-efficiency breeding method for the Philippine clams in the tidal flats in the intertidal zone of the Yellow and Bohai Seas. Background technique

[0002] my country has an area of ​​1.966 million hectares of tidal flats, of which 675,000 hectares have been utilized, accounting for 34.3%. It is the country with the most advanced tidal flat breeding technology in the world. Philippine clam (Ruditapes philippinarum) is the main cultured shellfish in shallow tidal flats in my country, with an annual output of about 3 million tons and a value of about 20 billion yuan, accounting for 1 / 5 of my country's mariculture output and 1 / 3 of shellfish output, and its industrial status is extremely high. important.

[0003] At present, the main problem restricting the development of the clam industry is that 90% of the cultured seedlings are from the southern population. ...

Examples

Embodiment 1

[0064] 1. Select large-scale clam seedlings: On October 29 in Erjiegou Town, Panjin, Liaoning, jellyfish, prawns and clams were cultivated in pond polyculture mode, and the average shell length was 2.51±0.21 cm, with a wet weight of 3.21±0.67g, a large-scale clam seedling from northern populations with regular shell shape, smooth shell edge without notches, and strong closure.

[0065] 2. Transport seedlings: avoid the high temperature at noon, put large-sized clam seedlings into woven bags at 20kg / bag at 4 o'clock in the evening, and transport them by truck to the intertidal zone of Donggang, Dandong, Liaoning. The transportation time is 7 hours.

[0066] 3. Characteristics of tidal flats in the intertidal zone: the seawater salinity in the intertidal zone in Dandong Donggang is 28-30ppt, the temperature in the intertidal zone in winter is above -2.7°C, and the daily temperature change is less than 10°C. The dominant species of phytoplankton in seawater is diatoms, which are ...

Embodiment 2

[0072] 1. Select large-scale clam seedlings: On October 29th, the average shell length of jellyfish, prawns, and clam species in Erjiegou ponds in Panjin, Liaoning Province was cultivated in a polyculture mode with an average shell length of 2.51±0.21cm and a total wet weight of 3.21±0.67g. , a large-scale northern group clam seedling with regular shell shape, smooth shell edge without notches, and strong shell closure.

[0073] 2. Seed transport: avoid the high temperature at noon, put large-size clam seed into woven bags at 20kg / bag at 4 o'clock in the evening, and use trucks to transport the seed to the intertidal zone of Ganyu in northern Jiangsu for breeding , the transit time is 16h.

[0074] 3. Selection of tidal flats in the intertidal zone: the salinity of the intertidal zone in northern Jiangsu, Ganyu is 30-33ppt, the temperature in the intertidal zone in winter is above 0°C, and the daily temperature difference is less than 10°C. The bottom is mainly sand and mud, ...

technical field

[0001] The invention belongs to the technical field of aquaculture, and in particular relates to a high-efficiency breeding method for the Philippine clams in the tidal flats in the intertidal zone of the Yellow and Bohai Seas. Background technique

[0002] my country has an area of ​​1.966 million hectares of tidal flats, of which 675,000 hectares have been utilized, accounting for 34.3%. It is the country with the most advanced tidal flat breeding technology in the world. Philippine clam (Ruditapes philippinarum) is the main cultured shellfish in shallow tidal flats in my country, with an annual output of about 3 million tons and a value of about 20 billion yuan, accounting for 1 / 5 of my country's mariculture output and 1 / 3 of shellfish output, and its industrial status is extremely high. important.

[0003] At present, the main problem restricting the development of the clam industry is that 90% of the cultured seedlings are from the southern population. ...

Examples

Embodiment 1

[0064] 1. Select large-scale clam seedlings: On October 29 in Erjiegou Town, Panjin, Liaoning, jellyfish, prawns and clams were cultivated in pond polyculture mode, and the average shell length was 2.51±0.21 cm, with a wet weight of 3.21±0.67g, a large-scale clam seedling from northern populations with regular shell shape, smooth shell edge without notches, and strong closure.

[0065] 2. Transport seedlings: avoid the high temperature at noon, put large-sized clam seedlings into woven bags at 20kg / bag at 4 o'clock in the evening, and transport them by truck to the intertidal zone of Donggang, Dandong, Liaoning. The transportation time is 7 hours.

[0066] 3. Characteristics of tidal flats in the intertidal zone: the seawater salinity in the intertidal zone in Dandong Donggang is 28-30ppt, the temperature in the intertidal zone in winter is above -2.7°C, and the daily temperature change is less than 10°C. The dominant species of phytoplankton in seawater is diatoms, which are ...

Embodiment 2

[0072] 1. Select large-scale clam seedlings: On October 29th, the average shell length of jellyfish, prawns, and clam species in Erjiegou ponds in Panjin, Liaoning Province was cultivated in a polyculture mode with an average shell length of 2.51±0.21cm and a total wet weight of 3.21±0.67g. , a large-scale northern group clam seedling with regular shell shape, smooth shell edge without notches, and strong shell closure.

[0073] 2. Seed transport: avoid the high temperature at noon, put large-size clam seed into woven bags at 20kg / bag at 4 o'clock in the evening, and use trucks to transport the seed to the intertidal zone of Ganyu in northern Jiangsu for breeding , the transit time is 16h.

[0074] 3. Selection of tidal flats in the intertidal zone: the salinity of the intertidal zone in northern Jiangsu, Ganyu is 30-33ppt, the temperature in the intertidal zone in winter is above 0°C, and the daily temperature difference is less than 10°C. The bottom is mainly sand and mud, ...