Глубоководные рыбы, фотограф Solvin Zankl

[copannan]

Bathylagus antarcticus is a deep-sea smelt of the genus Bathylagus, found in all the southern oceans as far south as Antarctica, from the surface to depths of 4,000 m. Their length is between 10 and 15 cm. It is a small deepwater fish with a long tapering body, large head and very large eyes. The second dorsal fin is adipose. It only has a few feeble teeth and probably has a diet of small planktonic animals. It is a uniform dark brown-black and the muscles are soft and flabby. Spawning probably occurs 3-4 times a year.


This handsome creature is the deep-sea hatchetfish Argyropelecus olfersi, found only in the eastern Atlantic - hatchetfish; eyes look up; light plates on body counter illuminate creating no shadow This hatchetfish Sternoptyx has many photophores beneath its body. Although this is not true bioluminescence, light is emitted from these same photophores. The glow is directed downward through light-guides, presumably to function as effective counterillumination seen only from below.


Juvenile deep-sea hatchetfish, genus Argyropelecus olfersi


Deep Sea Viperfish Chauliodus sloani


Scaless black dragonfish (Melanostomias biseriatus)


Female Toothed seadevil (Neoceratias spinifer) with male attached.
In some ceratioid taxa, the male's attachment to the female is followed by fusion of epidermal and dermal tissues and, eventually, by a connection of the circulatory systems so that the male becomes permanently dependent on the female for blood-transported nutrients, while the host female becomes a kind of self-fertilizing hermaphrodite. Neoceratiidae (subclass Actinopterygii, order Lophiiformes) A monospecific family (Neoceratias spinifer) of small (6 cm long), deep-sea fish that have a large head, a large mouth, and small eyes. The jaws are equipped with many long and slender teeth. The single dorsal, caudal, and anal fins have a rounded profile, while the pectorals are small. No illicium is present. Females are larger than males; males may form a parasitic relationship with their female sex partners. Permanent attachment is usually accomplished by means of separate outgrowths from the snout and tip of the lower jaw of the male, both of which eventually fuse with the skin of the female. In some species a papilla of female tissue protrudes into the mouth of the male, sometimes appearing to completely occlude the pharynx. The heads of some males become broadly fused to the skin of the female, extending from the tip of the lower jaw to the rear of the skull, appearing as if embedded or absorbed by their mate, while in others, the male is carried at the tip of an elongate, cylindrical stalk of female tissue. Increasing considerably in size once fused, their volume becoming much greater than free-living males of the same species, and being otherwise completely unable to acquire nutrients on their own, the males are considered to be parasites.


Cetomimus sp. An unusual specimen that may be an undescribed species. Flabby whalefishes are small, deep-sea cetomimiform fish of the family Cetomimidae. They are among the most deep-living fish known, with some species recorded at depths in excess of 3.5 kilometres. Within the family are nine genera and 20 species.

@темы: фото, биоразнообразие, рыбы

Comments

[Ворона]

Восхитительная подборка! Спасибо.

[copannan]

Ворона,