Numerical simulation validating of a duck-mouth type marine debris collection device's collection mechanism.

Marine debris (MD) poses a significant threat to global coastal ecosystems around the world, necessitating effective strategies for its collection and removal. As a new type of fixed collection device, the duck-mouth type marine debris collection device (MDCD) consists primarily of two components: a central collection system and floating fences which are positioned at a certain angle and open towards the outer bay located on both sides of it. This paper aims to establish a coupling drift model based on hydrodynamic model to study the performance of duck-mouth type MDCD, verify its effectiveness.

Wind-driven development and transport of blooms along the coast of Fujian, China.

is a cosmopolitan, bloom-forming dinoflagellate known to produce a suite of potent paralytic shellfish poisoning (PSP) toxins. Here, we revisit two major blooms of along the Fujianese Coast, China, in 2017 and 2018. The impact area of the 2017 bloom was larger than that of the 2018 event.

[Analysis on characteristics of red tide in Fujian coastal waters during the last 10 years].

There were 161 red tide events collected during the last 10 years from 2001 to 2010 in Fujian coastal waters. Comprehensive analysis was performed using statistical methods and the results indicated the following characteristics of the temporal and spatial distribution of red tide in Fujian coastal waters: (1) Outbreaks of red tide often occurred between April and September, and the peak period was in May and June. Most red tide events lasted for 2 to 4 days, and the affected area was below 50 square kilometers.