Assessing spatial patterns and ecological risks to coastal ecotourism: A case study from the Bohai Sea.

The Bohai Sea, a semi-enclosed marginal sea in northeastern China, plays a critical role in regional coastal ecotourism and marine biodiversity. However, intensifying industrialization and urban expansion have raised significant environmental concerns, particularly regarding trace metal contamination in coastal sediments that threaten both ecosystem services and the long-term viability of ecotourism. This study evaluates the spatial distribution, ecological risk levels, and potential sources of key trace metals-Cu, Cd, As, Pb, Zn, Cr, and Hg-across five prominent coastal tourism and ecological zones: Shuangtaizi Estuary, Jinzhou Bay, Luanhekou Estuary, Bohai Bay, and Laizhou Bay.

Advances and perspectives on the research of starfish outbreaks in northern China.

In recent years, starfish outbreaks occurred frequently in northern China, causing serious economic losses to marine aquaculture. The most common outbreak starfish species are and . We systematically reviewed the related studies by introducing the biological characteristics, current outbreaking status, and main impact of and , and by discussing the causes, formation process, and migration pattern of starfish outbreaks in northern China.

Comprehensive large-scale investigation and assessment of trace metal in the coastal sediments of Bohai Sea.

The Bohai Sea is characterized as a semi-closed sea with limited water exchange ability, which has been regarded as one of the most contaminated regions in China and has attracted public attention over the past decades. In recent years, the rapid industrialization and urbanization around the coastal region has resulted in a severe pollution pressure in the Bohai Sea. Although efforts from official government and scientific experts have been made to protect and restore the marine ecosystem, satisfactory achievements were not gained.