Noctiluca


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Noctiluca

 

a genus of protozoa of the class Mastigophora of the order Dinoflagellata. The spherical body is 2 to 3 mm in diameter and has a mobile, contractive flagellum. The animal reproduces by mitosis or by forming small buds, about 20 μm long, on the body surface. The cytoplasm is filled with fatty substances that oxidize and glow when irritated chemically or mechanically. (Experiments have shown that the substances react similarly to electric stimuli.) The Noctiluca are among the principal organisms that cause luminescence of the sea. They form clusters on the surface of warm or, less frequently, boreal waters. In the USSR the organisms are found in the Black Sea and the seas of the Far East.

References in periodicals archive ?
Pelagia noctiluca cok zehirli bir denizanasidir ve zehirini bosalttiktan sonra birkac gun icerisinde yeniden zehir olusturma yetenegine sahiptir (Theoharides ve ark.
Green Noctiluca scintillans live in the tropics while its close relative, red Noctiluca, whose blooms can kill fish with their high ammonia content, prefer temperate waters.
tenerum and Pyrocystis noctiluca, characterised by the area's oligotrophy, and on the left side, the neritic influence can be observed, where nutrients and Trichodesmium erythraeum, Oscillatoria spp.
Some siphonophores and other organisms, such as the dinoflagellate Noctiluca, contain cavities with iso-osmotic solutions of ammonium chloride that they can regulate to improve floatability.
Climate-driven range expansion of the red-tide dinoflagellate Noctiluca scintillans into the Southern Ocean.
In the nocturnal Lampyris noctiluca, the wingless females use a green glow to attract flying males.
ostenfeldii Gonyaulacales: Goniodomataceae Alexandrium monilatum (Howell, 1953) Dinoflagellata: Dinophyceae: Gonyaulax spinifera (Claparede Gonyaulacales: Gonyaulacaceae & Lachmann, 1859) Lingulodinium polyedrum (Stein, 1883) Dinoflagellata: Dinophyceae: Cochlodinium polykrikoides Gymnodiniales: Gymnodiniaceae Margalef, 1961 Gymnodinium catenatum Grahm, 1943 Dinoflagellata: Dinophyceae: Noctiluca scintillans Noctilucales: Noctilucaceae (Macartney) Kofoid & Swezy, 1921 Dinoflagellata: Dinophyceae: Peridinium quinquecorne Abe, Peridiniales: Peridinaceae 1927 in lit Protoperidinium quinquecrones Dinoflagellata: Dinophyceae: Prorocentrum lima (Ehrenberg) Protocentrales: Protocentraceae Dodge, 1975 Prorocentrum micans Ehrenberg, 1834 Prorocentrum spp.
The Metropolitan Sydney South Coast and Hunter Regional Algal Coordinating Committees issued an alert late Tuesday identifying the bloom as Noctiluca scintillans, "which appears pinkish or reddish in water with a similar characteristic to fairy floss.
In one recent initiative, the university's research vessel Guiding Light and Swansea's Noctiluca put to sea and headed for Ramsey Sound, off the Pembrokeshire coast, some of the trickiest waters around the UK.