Dorsal Surface: The top part of the fish.
Dorsal Fin: The dorsal fin is the uppermost fin, located between the body and the tail.
Dorsal Surface: The top part of the fish.
Dosing Pump: A pump that serves to maintain a specific water level in an aquarium. They are used to add a constant supply of additives or trace elements, much like a hospital IV.
Dorsal Surface The top part of the fish.
Encyclopedia 1.0 by Rebecca Smallwood
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Nota - The dorsal surface of a body segment, especially of the thoracic segments.
Nymph - The immature or larval stage of some macroinvertebrates.
Omnivorous - Feeding on both animals and plants.
" - Environmental Biology of Fishes, 1982 - Like other members of the genus, males bear bony facial bristles around the margin of the head and along the dorsal surface of the pectoral fin rays.
PD : The butterfly fish is bird-shaped with a flat dorsal surface. The wing-like pectoral fins are verylarge when compared with overall body size. The large mouth points toward the surface.
The Papuan toby is brown overall with blue spots on the side of the body, blue lines on the back and the dorsal surface of the caudal peduncle, a black spot at the base of the dorsal fin and orange on the underside of the snout.
They have smooth, scaleless skin that is yellow brown to brown on the dorsal surface with a cream or white belly. There are four pairs of prominent barbels framing a wide thick-lipped mouth. The head is broad and flat with very small eyes.
Both sexes are essentially yellow with dark green to black, iridescent patches on the flanks and dorsal surface, but as with other members of the genus sexual dimorphism is apparent, with males being more brightly coloured than females.[3] ...
The two dark beige stripes are overlaid with thicker black squarish splotches, and the lowest such stripe commences with a black eye mask. The dorsal fin of D. filamentosus makes up most of the length of the dorsal surface.
 See also: Dorsal, Fish, Water, Aquarium, Species
  
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