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The tiger shark is considered to be one of the most dangerous sharks to humans. [1] Although it is found in the Red Sea it is not usually seen near reefs during the daytime. The Grey reef shark is territorial and may be aggressive, and has been involved in non-fatal attacks on divers.
Cyanobacteria (blue-green algae) bloom on Lake Erie (United States) in 2009. These kinds of algae can cause harmful algal bloom. A harmful algal bloom (HAB), or excessive algae growth, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, water deoxygenation, mechanical damage to other organisms, or by other means.
Blooms have been noted to occur as far north as North Carolina and are commonly seen alongside the widespread death of fish and sea birds. [4] In addition to the effects on human health, the economic impact of HAB-associated shellfish toxin outbreaks can have significant economic implications as well due to not only the associated healthcare ...
This causes immediate pain, Tom says, as well as long red welts that appear on the skin. “The welts can last for several hours and cause burning pain and swelling to the skin,” she says.
Several shipping companies and a few liquefied natural gas (LNG) tankers have decided to avoid the world's main East-West trade route, following attacks launched by Yemen's Houthi group on ...
The 2010 Sharm El Sheikh shark attacks were a series of attacks by sharks on swimmers off the Red Sea resort of Sharm El Sheikh, Egypt.On 1 December 2010, three Russians and one Ukrainian were seriously injured within minutes of each other, and, on 5 December 2010, a German woman was killed when she was attacked while wading and snorkeling in the shallows close to the shoreline.
Attacks by Iran-backed militants in the Red Sea have effectively closed one of the world’s main trade routes to most container ships — vessels that carry everything from car parts to Crocs ...
Hallmark symptoms of ciguatera in humans include gastrointestinal, cardiovascular, and neurological effects. [5] [6] Gastrointestinal symptoms include nausea, vomiting, and diarrhea, usually followed by neurological symptoms such as headaches, muscle aches, paresthesia, numbness of extremities, mouth and lips, reversal of hot and cold sensation, [7] [8] ataxia, vertigo, and hallucinations.