Ichthyological terms, not general ones.
Vernacular term for any small, shrimp-like, marine crustacean of the order Euphausiacea. Represent an important, sometimes principal, proportion of the diet of many marine fishes and mammals. Available as food for ornamental fishes, usually in frozen form.
Used in 14 profiles
Small, visible pores on the head and/or body. Part of the lateral line system.
Used in 1 profile
Measurement of liquid volume, equivalent to a cube measuring 10cm on each side. Standard term for 1000 cc.
Used in 176 profiles
A fish species exhibiting ovoviviparity or viviparity.
Used in 234 profiles
Refers to 'Los Llanos', a wide expanse of tropical grassland located east of the Andes mountains in Venezuela and Colombia. Much of the area undergoes significant seasonal fluctuations in water level due to flooding of the Río Orinoco which flows through it.
Used in 13 profiles
The lower jaw bone of a vertebrate organism.
Used in 2 profiles
Tree or shrub of the families Rhizophoraceae and Verbenaceae or Avicenniaceae chiefly occurring in a mangrove swamp environment.
Having a streaked or mottled appearance similar to variegated marble.
Used in 12 profiles
Reproductive strategy in which the embryo is supplied with additional nutrition from the mother, applied to some viviparous fishes.
Used in 1 profile
Any of various black, dark brown, reddish-brown, or yellow pigments found in animal or plants.
Curve caused by surface tension visible in the upper surface of a liquid close to the side of a container or other object. My be concave or convex in shape depending on the liquid and surface involved.
Interval of geological time covering the period from around 250 million years ago to 65 million years ago. Often referred to as the 'Age of Reptiles' because dinosaurs were the dominant terrestrial and marine vertebrates.
Vernacular name for the tiny freshwater crab Limnopilos naiyanetri Chuang and Ng 1991, a member of the family Hymenosomatidae, or false spider crabs. It's native to Nakhon Pathom province, southern central Thailand and its body achieves a maximum diameter of around 1 cm. Completely aquatic and apparently spends its entire life cycle in fresh water.
The value or item occurring most frequently in a series of observations or statistical data. Often quoted in relation to a meristic character or characters.
Used in 34 profiles
Marked with variable spots or streaks; blotched.
Used in 21 profiles
Slimy, viscous substance used as a protective lubricant. Secreted by mucous membranes.
Used in 7 profiles
Form of paedomorphism characterised by retention of juvenile features in an adult individual via slowed or delayed maturation.
A bony or cartilaginous arch-shaped structure arising from the dorsal side of a vertebra and enclosing the spinal cord.
Used in 2 profiles
Any salt or ester of nitric acid, and the end product of the portion of the nitrogen cycle taking place in most closed aquarium systems (the conversion of nitrates to nitrogen gas in natural systems is carried out by anaerobic microorganisms not normally present in sufficient numbers in aquaria, though this process can be induced by installation of a nitrate reactor). While nitrates are less toxic than ammonia or nitrites, they are still potentially harmful to fishes and other aquatic organisms if allowed to accumulate unchecked, and must therefore be diluted via regular water changes. Aquatic plants also help since they are able to metabolise nitrates to an extent.
Used in 20 profiles
A salt or ester of nitrous acid. Produced in aquaria via metabolisation of ammonia by nitrifying bacteria of the genus Nitrosomonas, and toxic to fishes if present in sufficient concentrations, but in a mature system is further converted into less-harmful nitrates by other bacteria of the genus Nitrospira.
Used in 1 profile