Results for “species”

territory

In biology, area occupied by an individual, pair or group of animals and often physically defended against others of the same sex or species. May be established on a permanent or temporary basis.

Used in 318 profiles

test kit

Used to check the chemistry of an aquarium. There are specific tests for individual chemicals (eg ammonia, nitrIte).

tetrodotoxin

Neurotoxin found in many species of puffer fish. Lethal to humans.

Used in 7 profiles

topotypical

Occurring at, of, or relating to the type locality of a given species.

total length

Straight line measurement of specimen's length taken from the tip of the snout to the tip of the longer lobe of the caudal fin, if applicable, and not taking the curve of the body into account. If the caudal lobes are of equal length they may be compressed along the midline before the measurement is taken. Abbreviated to TL.

Used in 6 profiles

transverse scale row

Number of scales in the diagonal row between the orgins of dorsal and anal fins in a fish specimen, excluding the lateral line scales.

Used in 10 profiles

trinomen

Combination of generic name, specific, and subspecific names which together form the name of a subspecies.

type locality

The location, place or source where a holotype or type specimen was found.

Used in 916 profiles

type material

Collective term for all type specimens in a type series.

Used in 5 profiles

typotype

Used when a description or illustration serves as a type to refer to the specimen(s) on which it was based.

unisexual

Fish species of which all individuals are the same gender.

ventral-fin basket

Vernacular nerm used to describe the post-spawning behaviour of cupping or clamping of the ventral fins in order to transport fertilised eggs. Exhibited by females of some Corydoras species, for example.

vicariance

Separation or division of a population by a geographic barrier, such as a mountain or body of water, resulting in evolution into new varieties or species.

vicariant

Used in reference to any of several closely related species, variants, etc., each of which exists in a distinct geographical area but are assumed to have originated from a single population that became dispersed by geological events; of or relating to such an event.

Wallace's line

Hypothetical line, proposed by British naturalist Alfred Russel Wallace that marks the transitional boundary between the Oriental and Australian zoogeographical regions. It passes between the islands of Borneo and Sulawesi to its northern limit, Bali and Lombok to the south. To the west of the line organisms descended from Asiatic ancestors predominate, while to the east there exist species of both Asian and Australian origin.

Used in 1 profile

Western Ghats

Mountain range extending southwards down the western side of India from the borders of Gujarat and Maharashtra states, through Maharashtra, Goa, Karnataka, Tamil Nadu and Kerala as far as Kanyakumari district in Tamil Nadu. The Ghats are a UNESCO World Heritage Site and represent one of the eight hottest hotspots of biological diversity in the world, and is home to a number of endemic fish species.

Used in 44 profiles

white worm

Vernacular name for the annelid worm Enchytraeus albidus Henle, 1937, a species commonly cultured by aquarists for use as live fish food.

Used in 8 profiles

whitebait

Collective term for the young of various fishes, especially herring and sprat. Sometimes used as food for predatory species in aquaria.

Used in 48 profiles

worms (parasite)

Any species of nematode worm which spends part of its life cycle as an internal parasite within a fish's intestinal system.

yolk sac

A membranous sac containing yolk attached to the ventral surface of embryos and early larvae in some fishes. Retained for a period post-hatching in those species which form yolk sac larvae.

Used in 221 profiles