An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3,000 and 6,000 metres. Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth's surface. They are among the flattest, smoothest, and least explored regions on Earth. Abyssal plains are key geologic elements of oceanic basins.
Anisakis is a genus of parasitic nematodes that have life cycles involving fish and marine mammals. They are infective to humans and cause anisakiasis. People who produce immunoglobulin E in response to this parasite may subsequently have an allergic reaction, including anaphylaxis, after eating fish infected with Anisakis species.
The blacktip grouper, also known as the redbanded grouper, blacktipped cod, black-tipped rockcod, footballer cod, red-barred cod, red-barred rockcod, scarlet rock-cod or weathered rock-cod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the tropical Indo-Pacific region. It is the type species of the genus Epinephelus.
Pachycara is a genus of marine ray-finned fishes belonging to the family Zoarcidae, the eelpouts. The fishes in this genus are found in the Atlantic, Indian, Southern and Pacific Ocean.
Like humans and other animals, fish suffer from diseases and parasites. Fish defences against disease are specific and non-specific. Non-specific defences include skin and scales, as well as the mucus layer secreted by the epidermis that traps microorganisms and inhibits their growth. If pathogens breach these defences, fish can develop inflammatory responses that increase the flow of blood to infected areas and deliver white blood cells that attempt to destroy the pathogens.
Cucullanus is a genus of parasitic nematodes. The genus includes more than 100 species.
Physalopteridae is a family of spirurian nematodes, which belongs to the superfamily Physalopteroidea. Like all nematodes, they have neither a circulatory nor a respiratory system.
František Moravec is a Czech parasitologist who specialises on the Nematodes, especially the nematodes parasites of fishes. His research is mainly in the field of taxonomy of the Nematoda.
Cystidicolidae is a family of spirurian nematodes. It was described by Skrjabin in 1946. All members of the family are parasites of fish.
Jean-Lou Justine, French parasitologist and zoologist, is a professor at the National Museum of Natural History in Paris, France, and a specialist of fish parasites and invasive land planarians.
Ascarophis is a genus of parasitic nematodes, belonging to the family Cystidicolidae. Species of Ascarophis are parasitic as adults in the gastrointestinal tract of marine and estuarine fishes.
Ascarophisnema is a genus of parasitic nematodes, belonging to the family Cystidicolidae. Species of Ascarophisnema are parasitic as adults in the gastrointestinal tract of fish. According to the World Register of Marine Species, the genus currently (2019) includes a single species, Ascarophisnema tridentatum.
Metabronemoides is a genus of parasitic nematodes, belonging to the family Cystidicolidae. Species of Metabronemoides are parasitic as adults in the gastrointestinal tract of fish.
Cristitectus is a genus of parasitic nematodes, belonging to the family Cystidicolidae. Species of Cristitectus are parasitic as adults in the gastrointestinal tract of fish. According to the World Register of Marine Species, the genus currently (2019) includes a single species, Cristitectus congeri, which is a parasite of the European conger.
Spinitectoides is a genus of parasitic nematodes, belonging to the family Cystidicolidae. Species of Spinitectoides are parasitic as adults in the gastrointestinal tract of fish. According to the World Register of Marine Species, the genus currently (2019) includes a single species, Spinitectoides berlandi.
Prospinitectus is a genus of parasitic nematodes, belonging to the family Cystidicolidae. Species of Prospinitectus are parasitic as adults in the gastrointestinal tract of Tuna fish.
Ichthyofilaroides is a genus of parasitic nematodes, belonging to the family Guyanemidae Petter, 1974.
Pachycara crassiceps is a species of marine ray-finned fish belonging to the family Zoarcidae, the eelpouts. It is found in the Eastern Atlantic Ocean.
Pyrolycus is a genus of marine ray-finned fishes belonging to the subfamily Lycodinae, the eelpouts, within the family Zoarcidae. The genus was first described in 2002 by Japanese ichthyologists Yoshihiko Machida and Jun Hashimoto. The type species is P. manusanus, which was discovered in the Manus Basin off Papua New Guinea.
Pyrolycus jaco is a species of eelpout. These organisms are typically distinguished by their eel-like morphology and, in certain species, facial features that evoke an appearance of "pouting". This species was discovered at Jacó Scar, hydrothermal seep site in the Pacific Ocean.
