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A jellyfish bloom is defined as a substantial increase in a jellyfish population within a short time period; the result of a higher reproduction rate. [2] Since jellyfish naturally have high reproductive rates, high-density blooms can occur as a result of both behavioral and ecological causes.
Large blooms of jellyfish in coastal areas can interrupt recreation and their arms may produce a mild but irritating sting. [16] Due to their size and high abundance, C. mosaicus is harvested for human consumption, and is considered a delicacy in some countries, including China and Japan. [17]
Mnemiopsis leidyi, a species of comb jellyfish that spread so it now inhabits estuaries in many parts of the world, was first introduced in 1982, and thought to have been transported to the Black Sea in a ship's ballast water. The population of the jellyfish grew exponentially and, by 1988, it was wreaking havoc upon the local fishing industry.
Mayo Clinic states that most jellyfish stings, unless severe symptoms are also present, can be treated by: Carefully plucking visible tentacles from the skin with fine tweezers Soaking the skin in ...
This in turn kills fish and other animals, but not jellyfish, [94] allowing them to bloom. [95] [96] Jellyfish populations may be expanding globally as a result of land runoff and overfishing of their natural predators. [97] [98] Jellyfish are well placed to benefit from disturbance of marine ecosystems. They reproduce rapidly; they prey upon ...
Jellyfish are slow swimmers, and most species form part of the plankton. Traditionally jellyfish have been viewed as trophic dead ends, minor players in the marine food web, gelatinous organisms with a body plan largely based on water that offers little nutritional value or interest for other organisms apart from a few specialised predators such as the ocean sunfish and the leatherback sea turtle.
Increased abundance of jellyfish negatively impacts fish populations in the same region because jellyfish feed on fish eggs and larvae. [13] Jellyfish and larval fish can also share common dietary preferences. Competition for food resources can result in depleted fish populations. Overpopulation of jellyfish is a concern to humans for many ...
Drymonema larsoni is a species [3] that forms large, dangerous blooms in the northern area of the Gulf of Mexico. Drymonema larsoni get their name "pink meanie" from their predation and eating habits. The pink meanies were found to feed on the moon jellyfish (Aurelia sp.) in the northern section of the Gulf of Mexico. [3]