Wild harvesting method of Zostera marina L. seeds

Abstract

The invention relates to a wild harvesting method of Zostera marina L. seeds. The method comprises the following steps: at a low-tide stage when peels on first spathe inflorescences of most flower lateral branches are initially cracked, harvesting flowering branches, putting the harvested flowering branches into 20-mesh bolting silk string bags till each string bag is filled by a half, tightening the mouths of the string bags, connecting the plurality of string bags together, and locally putting the connected string bags back into sea water; 15 days later, taking the string bags out and cleaning substances attached to the surfaces of the string bags; about 30 days later, taking the string bags out, locally pouring the flowering branches in the string bags into a plastic water bucket, adding sea water, stirring vigorously, and picking out residual flowering branches on an upper layer after seeds fall to the bottom of the bucket; adding sea water repeatedly, stirring, and pouring out immature seeds floating on the upper layer; and filtering large shellfishes out by using a 10-mesh mesh sieve in sea water, filtering small shellfishes and residues out by using a 30-mesh mesh sieve, and selecting plump Zostera marina L. seeds. By using the wild harvesting method, a high seed harvesting rate is ensured under the condition of low cost, and damages to populations caused by harvesting of the flowering branches are reduced to the maximum extent. The wild harvesting method can be applied to any Zostera marina L. growing sea area.

Description

technical field [0001] The invention belongs to the field of seaweed seed harvesting, and relates to a field harvesting method of eelgrass seeds. Background technique [0002] Eelweed ( Zostera marina L.) is a marine seed plant that was once widely distributed along the coasts of Shandong, Hebei and Liaoning in my country. However, nearly 80% of the populations of Zeraria spp. in my country have degraded in the past two decades. Therefore, in recent years, the restoration of its population and its ecosystem has been initiated in my country. upsurge. Harvesting seeds and planting them in rehabilitated marine areas is gaining popularity because mass adult transplantation can cause significant damage to already scarce eelgrass provenances. Therefore, efficient harvesting of eelgrass seeds will be the foundational work of this restoration method. [0003] The eelgrass in the sea areas of Shandong, Hebei and Liaoning generally enters the seed maturity stage in July and August. ...

AI Technical Summary

Problems solved by technology

This device requires a special cultivation device, consumes a lot of energy, and is not economical and practical.

The invention of "a device for collecting eel algae seeds" has been announced in China, which has greatly improved the American method, but still requires specific small equipment, and the manufacturing method is relatively complicated

Images