CN107568114B

CN107568114B - Seabed breeding method of sebastes rosaponica

Info

Publication number: CN107568114B
Application number: CN201710735835.5A
Authority: CN
Inventors: 李育培; 余霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-24
Filing date: 2017-08-24
Publication date: 2020-06-12
Anticipated expiration: 2037-08-24
Also published as: CN107568114A

Abstract

The invention discloses a bastes seabed cultivation method, which comprises the following steps: A. selecting a culture area; B. setting culture facilities; C. putting seedlings; D. attracting food; E. and (5) breeding management. The method creates a pure natural growth environment for the sebastes mascivores with the rose toxicity, attracts wild small trash fish and shrimps and crabs to swim into the net cages for the sebastes to prey, enables the sebastes with the rose toxicity to freely grow in natural sea areas, breaks through the key technology of low survival rate and slow growth speed of the sebastes with the rose toxicity, ensures that the quality of the sebastes with the rose toxicity cultured by the method is completely the same as that of the wild sebastes with the rose toxicity, has higher yield and economic value, and realizes the large-scale culture of the sebastes with the rose toxicity.

Description

Seabed breeding method of sebastes rosaponica

Technical Field

The invention belongs to the technical field of fish culture in agricultural aquaculture, relates to a culture method of marine coral reef fishes, and particularly relates to a sea bottom culture method of Sebastes bastes in south China sea.

Background

Sebastes bastes (scholar):Synanceia verrucosa) The fish is a high-grade edible fish in China, and has tender meat quality and delicious and deep taste in fine sand mainly inhabiting shallow water areas of coral reefs in south China; in recent years, due to over-fishing, wild bastes seeds resources are gradually exhausted, so that artificial culture of bastes seeds is urgently developed, market demands can be met, wild resources of bastes seeds can be protected, balance of a coral reef ecosystem is maintained, and sustainable utilization of bastes seeds resources is achieved.

Disclosure of Invention

At present, research reports related to the artificial culture aspect of Sebastes bastes isb are not seen, the key technical problem of the artificial culture of Sebastes bastes isb is broken through for the first time, and a reliable and scale-operable artificial culture method for Sebastes bastes isb is provided.

In order to achieve the purpose, the technical scheme of the invention is as follows: the method for culturing Sebastes bastes roseus on the seabed comprises the following steps:

A. selecting a culture area: in the coral reef sea area with the water depth of the south sea island lagoon being less than 6 meters and good wind shielding performance, the flow rate of seawater is less than 0.3 meter per second;

B. and (4) breeding facilities: installing a conical net cage (the periphery of the net cage except the bottom end is coated with netting with meshes of 1-2 cm) on the seabed of a culture area, and covering the coral reef seabed with the area of 4-8 square meters at the bottom end of the net cage; covering area of coral reefs in the net cage is required to be 30-60% for hiding and inhabiting wild small trash fish and shrimps and crabs; the area of the fine sand accounts for 20-50% for the hiding and perching of sebastes roseoflavus;

C. seed putting: putting 50-90 fish of sebastes rosaponica sebifera fries with the weight of 50-100 g in each conical net cage;

D. food calling: according to the habit that sebastes roseoflavus only preys on live fish, throwing 200-3000 g of rotten and smelly trash fish in each net cage to attract wild small trash fish and shrimps and crabs to swim into the net cages for foraging during 6-7 pm every day, and allowing sebastes roseoflavus cultured in the net cages to prey on the small trash fish and the shrimps and crabs which swim into the net cages for foraging;

F. cultivation management: the netting is cleaned at regular intervals every month, and attachments are removed, so that water flow inside and outside the net cage is smooth, and wild small trash fishes and shrimps and crabs can swim into the net cage conveniently.

The invention creates a pure natural growth environment for the sebastes mases of the rosy toxicant, attracts the wild small trash fish and the shrimps and crabs to swim into the net cage for the sebastes to prey, and enables the sebastes of the rosy toxicant to freely grow in the natural sea area, so that the quality of the cultivated sebastes of the rosy toxicant is completely the same as that of the wild sebastes of the rosy toxicant, the sebastes of the rosy toxicant have higher yield and economic value, and can.

Detailed Description

Example 1

The invention provides a bastes sea culture method, which comprises the following steps:

taking the artificial sea-bottom culture test of Sebastes roseus developed in Sebastes Sessima sea area during 3-10 months in 2014 as an example:

A. a culture area: and (3) constructing a breeding test point in the sea area of the Xisha Yongle archipelago. The cultivation test point is in the Yong le ring reef, the wind-sheltering effect is good, the water depth is 2 meters, and the average flow velocity of seawater is 0.05 meters per second;

B. and (4) breeding facilities: 3 conical net cages (the peripheries of the net cages except the bottom end are all wrapped by netting and have meshes of 1 cm) are arranged on the seabed of the culture area, the specification of the net cages is 2 meters multiplied by 1 meter, the coral reef seabed of 4 square meters is covered, and the coverage area of the coral reef is 30 percent for wild small trash fish and small shrimps and crabs to inhabit; covering the area of fine sand by 50 percent, and allowing the sebastes rosaponica to submerge into the sand for hidden perching;

C. seed putting: 3, 9 months in 2014, putting 50 fish of sebastes rosaponica sebastes whose weight is about 55 grams in each conical net cage;

D. food calling: 200 g of rotten and smelly trash fish are thrown in each net cage at 6 pm every day (200 g is gradually increased month by month) to attract wild small trash fish and shrimps and crabs to swim into the net cages for foraging, and the sebastes roseoflavus bred in the net cages prey on the small trash fish and shrimps which swim into the net cages for foraging;

After 8 months of culture growth, fishing statistics is carried out on 10 months and 8 days in 2014, the average culture survival rate of each net cage is 86%, the average weight of cultured sebastes roseoflavus is 1.3 kg, and 167.7 kg of sebastes roseoflavus are harvested together.

Example 2

Taking the artificial sea-bottom culture test of Sebastes roseus developed in Sebastes Sessima sea area during 4-11 months in 2014 as an example:

A. a culture area: a test point is established in the sea area of the Xisha Yongle archipelago. The cultivation test point is in the Yong le ring reef, the wind-sheltering effect is good, the water depth is 4 meters, and the average flow velocity of seawater is 0.03 meter per second;

B. and (4) breeding facilities: 3 conical net cages (the peripheries of the net cages except the bottom end are all wrapped by netting and have meshes of 1.5 cm) are arranged on the seabed of the culture area, the specification of the net cages is 3 meters multiplied by 2 meters multiplied by 1 meter, the coral reef seabed of 6 square meters is covered, and the covering area of the coral reef is 40 percent for wild small trash fish and small shrimps and crabs to inhabit; covering 45% of fine sand, and allowing sebastes of rosmarinus japonicus to submerge into the sand to hide and perch;

C. seed putting: 4, 6 days 4 and 6 days 2014, 70 fish of sebastes rosaponica sebastes whose body weight is about 80 grams are thrown into each conical net cage;

D. food calling: 300 g (200 g is gradually increased month by month) of rotten and smelly trash fish are thrown into each net cage at 6 pm every day to attract wild small trash fish and shrimps and crabs to swim into the net cages for foraging, and the sebastes roseoflavus bred in the net cages prey on the small trash fish and the shrimps and crabs which swim into the net cages for foraging;

After 8 months of culture growth, fishing statistics is carried out on 11 months and 5 days in 2014, the average culture survival rate of each net cage is 83%, the average weight of cultured sebastes roseoflavus is 1.8 kg, and 313.2 kg of sebastes roseoflavus is harvested.

Example 3

Taking the artificial sea-bottom culture test of Sebastes roseus developed in Sebastes Sessima sea area during 5-12 months in 2014 as an example:

A. a culture area: a test point is established in the sea area of the Xisha Yongle archipelago. The cultivation test point is in the Yong le ring reef, the wind-sheltering effect is good, the water depth is 6 meters, and the average flow velocity of seawater is 0.02 meters per second;

B. and (4) breeding facilities: 3 conical net cages (the peripheries of the net cages except the bottom end are all wrapped by netting and have 2 cm meshes) are arranged on the seabed of the culture area, the specification of the net cages is 4 meters multiplied by 2 meters, the coral reef seabed of 8 square meters is covered, and the covering area of the coral reef is 35 percent for wild small trash fish and small shrimps and crabs to inhabit; covering the area of fine sand by 50 percent, and allowing the sebastes rosaponica to submerge into the sand for hidden perching;

C. seed putting: 5, 10 months in 2014, putting 90 fish of sebastes rosaponica sebastes offspring seeds with the weight of about 100 grams in each conical net cage;

D. food calling: 400 g (200 g is gradually increased month by month) of rotten and smelly trash fish are thrown into each net cage at 6 pm every day to attract wild small trash fish and shrimps and crabs to swim into the net cages for foraging, and the sebastes roseoflavis cultured in the net cages prey on the small trash fish and the shrimps and crabs which swim into the net cages for foraging;

After 8 months of culture growth, fishing statistics is carried out on 12 months and 9 days in 2014, the average culture survival rate of each net cage is 88%, the average weight of cultured sebastes roseoflavus is 2.4 kg, and 570.24 kg of sebastes roseoflavus are harvested together.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims

1. A Sebastes bastes culturing method of Sebastes bastes with Sebastes roseus is characterized by comprising the following steps:

B. and (4) breeding facilities: installing a conical net cage on the seabed of a culture area, wherein the periphery of the net cage except the bottom end is wrapped by netting with 1-2 cm meshes, and the bottom end of the net cage covers a coral reef seabed with the area of 4-8 square meters; covering area of coral reefs in the net cage is required to be 30-60% for hiding and inhabiting wild small trash fish and shrimps and crabs; the fine sand area in the net cage is required to be 20-50% for the sebastes roseoflavus to hide and perch;

E. cultivation management: the netting is cleaned at regular intervals every month, and attachments are removed, so that water flow inside and outside the net cage is smooth, and wild small trash fishes and shrimps and crabs can swim into the net cage conveniently.