Mature eelgrass bulbs dominate the impact of vegetation on abundant seafood in the eutrophic Gulf of North China.

Mature eelgrass cultivars address the impact of vegetation on abundant seafood in the eutrophic basin of North China.

Changes in Zostera marina’s position in production and production (A), and a map showing the red sea in Bohai Bay from 2000 to 2016 (B). Currency: IOCAS

There are marine angiosperms in the ocean, which play important ecological roles in marine ecosystems. Zostera marina L. (eelgrass) is a seagrass plant and is the most widespread plant species on the northern Atlantic and Pacific coasts.

Bohai Bay, the representative of the semi-arid bay in northern China, has experienced intense eutrophication and heavy fishing in recent years. There is a large eelgrass bed in the northwest of the eutrophic bay.

Today, a research team led by Prof. Zhou Yi from the Institute of Oceanology of the Chinese Academy of Sciences (IOCAS) provided more information on the difference between increasing the population in Z. marina to mainstream food.

The study was published in Wood Pollution Bulletin on the 7th of April.

The researchers investigated the amount of eelgrass harvest, height, biomass, plant growth, and the amount of fruit juice to examine the physical dynamics of asexual growth and reproduction. Measurement of eelgrass. They also learned about the nutritional value of seawater and sea skin, and their ecological connection to food.

They found that eelgrass fruits were seen from April to July, when they reached their highest height (~ 220 m shoots.-2) in May before the decline. The plants were not available in the planting areas in June 2019, although the number of plants was large, with a total of 110 m flowers.-2, which lives in eelgrass valleys. The thickness of the plant shoots increased significantly during the fall, with the number of plant shoots increasing more than four times.

“Asexual growth is important in the care of existing gardens, and female birth is important in the settlement of new areas. We believe mature eelgrass seedlings will control the impact. of the plants in the main leaf, ”said Drs. Xu Shaochun, the first author of the study. This information provides basic information on the recovery of large eelgrass in northern China.

The researchers also analyzed the amount of nutrients in seawater and foliage, and found that food sources of Nitrogen (N) and Phosphorus (P) in this area were found to be effective. to demand growing eelgrass. The N / P limit of seawater and sea surface has been shown to be the N limit relative to P in the eutrophic basin based on the Redfield grass ratio (25–30).

“Taking in the right nutrients by the sea surface may be important in reducing the amount of red water in the training area,” said Prof. Zhou, co -author of the study.

It is a good idea to restore eelgrass using sand-capping

More information:
Shaochun Xu et al, Did mature eelgrass plants account for the impact of vegetation in a large seagrass population on the eutrophic basin in northern China ?, Wood Pollution Bulletin (2022). DOI: 10.1016 / j.marpolbul.2022.113499

Presented by the Chinese Academy of Science

Directions: Mature eelgrass bulbs address crop impact on food intake in northern China’s eutrophic waters (2022, April 12) Retrieved 12 April 2022 from 2022-04-adult-eelgrass-seedling-fate- nui.html

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