How to increase the concentration of salinity in seawater aquaculture - Master's thesis - Dissertation

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The probe domestically produced P02-B needle nickel-plated needle body diameter is 0.68. The length of the spring needle is

Programmable Package SG-8018CA(SG7050C) 0.67M~170M

Fish farming methods are divided into “sea fishing” using floating cages and “onshore farming” using sinks and pools on land. The method of not changing water in onshore farming, so that the aquaculture water is completely circulated is called “closed circulating aquaculture”. On the ocean, according to the viewpoint of marine ecological protection, it is obliged to measure the seawater salinity of ballast water used by ships such as oil tankers. The salinity of seawater varies from observation to location, generally

3.1-3.8%.

The main purpose of seawater salinity measurement is for artificial seawater production, marine monitoring, ballast water for tankers, etc.

Seawater salinity meter, the salinity of artificial marine aquaculture is

30-35‰

The culture salinity of the prawn and other organisms is generally

0.5-30‰

In marine monitoring, it is necessary to measure the seawater concentration in the waters around the world and confirm the change in seawater concentration. In the beautiful sea all over the coral reef, if the seawater concentration is not

33-35‰

It will not form a beautiful coral reef. According to the viewpoint of marine ecological protection, it is obliged to measure the seawater salinity of ballast water used by ships such as oil tankers. The measurement data of New York, USA must be at least

30‰

(note

:

1%=10‰

)

Seawater salinity meter

PAL-06S

,

Seawater concentration meter

PAL-07S

,

seawater

Baume

Hydrometer

PAL-08S,

Handheld seawater concentration meter

MASTER-S/Millα

. The completely closed-loop culture uses the salt from the hot springs (chloride hot springs) for marine fish culture. It is now introduced by many media and there are many people who know it. Temperature-trained tiger porpoises can be shipped from one year to a year and a half, which is more efficient than mariculture, and there is no need to worry about the pollution of harmful substances, so that the purpose of safe farming can be achieved with greater peace of mind.

In the feeding method, salinity control is very important, generally not in

0.4%

Following, finally use salinity

3.4-3.5%

Artificial marine aquaculture shipments. If the salt control of the hot spring water is neglected, the color of the pufferfish will turn black and will soon die. Such land-based Shanghai fish farming is applicable to other shrimps as well as to puffer fish. For example, if the squid is cultured, if the squid is in poor physical condition and there are parasites or bacteria on the surface, the salt bath can be used to restore and adjust the physiological function with the osmotic pressure of the saline. Generally, you need to

0.3%-0.7%

In the salt water

48-120

Salt bath around an hour. It has a good effect on sleeping sickness and tail decay. However, if the salinity control is not accurate and the salt bath concentration is too high, it will cause discoloration or death.

PAL-SALT

Salinometer

,

PAL-03S

Saline salinity meter

, PAL-06S

Seawater salinity meter

, quickly detect seawater salinity concentration content.

ATAGO (

Ai Tuo

)

Marketing department