Method for sowing fixed life-form seaweed seedlings on sea surface

Abstract

The invention provides a method for sowing fixed life-form seaweed seedlings on the sea surface. The method comprises the following steps: (1) selection and treatment of shellfish used as substrates of the seaweeds; (2) culture of seedlings of the seaweeds using the shellfish as the substrates; and (3) sowing: the shellfish is lamellibranchia shellfish. The method has the following advantages: the aim that the fixed life-form seaweeds adhere to the submarine rocks through the convenient way of sowing on the sea surface is achieved; the new species (protospecies) for studying propagation and cultivation of the algae in China are convenient to popularize and apply in the submarine algae field; the biomass of the algae in the submarine algae field is increased, the dominant species of the algae are obvious and are convenient to harvest, and the fixed substances of the algae, such as C, N, P and the like, are taken from the sea to the land, so the effect on solving the ecological problemslasts longer and the contributions of the seaweeds to the sea ecology are effective for a long term; the submarine geomorphy is not changed and the original sea ecology is not damaged; the cost is low and the investment is low; and the built submarine algae field can be harvested, the economic benefits are acquired by adding the fishery resources and industrialized popularization and application can be carried out.

Description

technical field [0001] The invention relates to a sea surface sowing method of fixed life type seaweed seedlings. Background technique [0002] The impact of forests on the terrestrial environment has long been valued by people, and the impact of marine algae as trees in the ocean on the marine ecological environment has also been valued by marine workers. The bioremediation effect of macroalgae on marine ecology is a consensus in the marine ecology community: algae absorb CO in water 2 , participate in the global carbon cycle and consume atmospheric CO 2 effect to achieve the goal of controlling greenhouse gases; the O emitted by algae photosynthesis 2 It increases the dissolved oxygen content in the water body and improves the water quality; the algae absorb inorganic salts such as N and P, which can solve the problem of marine eutrophication and reduce the resulting marine ecological crises such as red tides and the explosive proliferation of Enteromorpha. The role of ...

AI Technical Summary

Problems solved by technology

However, marine plant resources including seagrass and other marine plant resources near the coast of my country have been decreasing for a long time. However, the construction of seaweed beds and algae reefs is not only limited by geographical conditions, but also requires high investment, making it difficult to form industrialization. Traditional artificial algae reefs are the first After the reef is built, there are wild algae attached, so the algae species in the artificial algae reef are various, the dominant species is not obvious, and the algae are difficult to harvest. From the perspective of fixing C and N, after the algae rots, the C, N, P fixed by the algae It returns to the water body again, which cannot completely solve the ecological problem

[0003] Sessile living macroalgae must be attached to the substrate to grow and develop. However, due to the effects of ocean currents and tides, the seedling stage of macroalgae lacks a stable environment and does not allow time for the fixator to attach. It is difficult for sessile macroalgae to be sowed by placing seedlings on the bottom. Although the method of spreading spores can be attached to the bottom of the sea, it is difficult to germinate spores due to factors such as light on the bottom of the sea and floating mud, and the growth is very slow, or they cannot germinate for a long time, and eventually lose the chance of growth, so it is difficult to implement; Small stones are used as the attachment base, and the small seedlings can be fixed in the early stage. As the seedlings grow up, the seedlings and stones will float with the sea current, and it will be impossible to attach to the seabed in the future, and the cost of this method will increase

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