Simulated Field Culture System for Determination of Marine Primary Productivity Using Black and White Bottle Method

Abstract

The invention relates to a simulated on-site cultivation system for measuring marine primary productivity by using a black-and-white bottle sampling method, comprising a cultivation unit, a temperature and water flow simulation control unit, and a lighting simulation control unit; the cultivation unit includes several cultivation subunits, and the cultivation subunits The unit includes a cylinder-shaped water bath cover, a central rotating shaft is arranged along the central axis of the cylinder, and a culture bottle rotating bracket is arranged on the periphery of the central rotating shaft. Several culture bottles are detachably fixed on the culture bottle rotating bracket, and each culture subunit Set in series with the central rotating shaft as the axis, there are gaps between the culture sub-units; the temperature and water flow simulation control unit includes a circulating water bath, which is connected to the water inlet and water outlet on the water bath cover respectively; the lighting simulation control unit It includes a light panel and a fluorescent tube, the fluorescent tube is arranged on the light panel, the fluorescent tube is connected to a power supply, and the lighting simulation control unit is set outside the outermost cultivation sub-unit.

Description

technical field [0001] The invention relates to a cultivation system for phytoplankton and marine primary productivity, in particular to a simulated field cultivation system for measuring marine primary productivity by using a black and white bottle oxygen measurement method. Background technique [0002] Marine primary productivity refers to the ability or rate of primary producers (mainly phytoplankton) in the ocean to produce organic matter through photosynthesis or chemical synthesis, which is the basis for the survival of other heterotrophic organisms in the marine ecosystem and fundamentally affects the global Biogeochemical cycles and climate change. Therefore, precise testing of ocean primary productivity has become an important hub for countries to study carbon cycling between living organisms and inorganic carbon pools, ocean carbon sequestration capacity, and climate change. There are many methods to measure the primary productivity of marine phytoplankton. Curre...

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Problems solved by technology

[0011] The present invention aims to provide a "simulation" on-site cultivation system to solve the problems of the existing cultivation system, such as difficult operation, long time consumption, high operation requirements, and inaccurate test results; With the advantages of low cost and no radioactive pollution, it perfectly solves the problems of measuring marine primary productivity and carrying out related scientific experiments on scientific research ships, and provides technical support for marine scientific investigation and research

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