High-efficiency culture method of Philippine clams in the intertidal tidal flats of the Yellow and Bohai Seas

Abstract

The invention provides a method for high-efficiency cultivation of Philippine clams in the tidal flats in the intertidal zone of the Yellow and Bohai Seas, which belongs to the technical field of aquaculture. The high-efficiency breeding method for Philippine clams in the tidal flats of the Bohai Sea intertidal zone comprises the following steps: cultivating clam seedlings in ponds north of the northern Jiangsu coast of my country to a large size with a shell length of not less than 2.5cm and a total wet weight of not less than 2.5g. Standard clam seedlings; from September to October each year, spread the large-scale clam seedlings evenly on the tidal flats in the intertidal zone of the Huangbo Sea; Biology, regularly check the breeding indicators of seawater, and harvest clams after 7 to 10 months of breeding. The cultivation of large-scale Philippine clams in the intertidal zone of the Yellow and Bohai Seas has greatly improved the survival rate of cultivation, shortened the cultivation cycle, restored the use of barren tidal flats, and improved the efficiency of cultivation.

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-scale 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-scale 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, ...