Search results
Results from the WOW.Com Content Network
In zoology, deep-sea gigantism or abyssal gigantism is the tendency for species of deep-sea dwelling animals to be larger than their shallower-water relatives across a large taxonomic range. Proposed explanations for this type of gigantism include necessary adaptation to colder temperature, food scarcity, reduced predation pressure and ...
Ciguatera fish poisoning (CFP), also known as ciguatera, is a foodborne illness caused by eating reef fish contaminated with ciguatoxins. [ 4 ] [ 2 ] Such individual fish are said to be ciguatoxic . Symptoms may include diarrhea , vomiting, numbness, itchiness, sensitivity to hot and cold, dizziness , and weakness.
G. salaris requires fresh water, [2] but can survive in brackish water for up to 18 hours. [5] The parasite is 0.5 mm (0.02 in) long, [2] and cannot be seen with the naked eye, but it can be seen with a magnifying glass. [6] On its posterior end is a haptor, a specialized organ for attaching to the host fish, which has sixteen hooks around its ...
PSP toxins (of which saxitoxin is the most ubiquitous) are produced in eukaryotic dinoflagellates and prokaryotic cyanobacteria (usually referred to as blue-green algae). ). Within the freshwater marine ecosystem, the largest contribution in the accumulation of PSP toxins derives from saxitoxin produced by cyanobac
Like many other apex reef fish, it is likely to cause ciguatera poisoning if eaten. [122] [123] Outbreaks of ciguatera poisoning in the 11th to 15th centuries from large, carnivorous reef fish, caused by harmful algal blooms, could be a reason why Polynesians migrated to Easter Island, New Zealand, and possibly Hawaii. [124] [125] Reef stonefish
A study examining the digestive system contents of 1651 specimens of B. giganteus found that fish were most commonly eaten, followed by cephalopods and decapods, particularly carideans and galatheids. [4] Giant isopods collected along the east coast of Australia by setting traps exhibit a variation in diversity with water depth.
Awareness of water poisoning has increased recently, thanks to a series events that have also called into question just how much water people should be drinking daily.
The former include the algae-produced euglenophycin and prymnesins, which can cause large-scale fish deaths. The latter includes ostracitoxin , produced by boxfish . [ 1 ] Many toxin-producing algal species can be found both in marine and fresh water environments when the algae are in bloom.