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Results for “bar”

Ichthyological terms, not general ones.

Species 305Articles 15Glossary 15

  • bar

    Used in ichthyology to describe a vertical or diagonal marking, normally with well-defined margins, often located on the flank of a fish.

    Used in 399 profiles

  • barb

    In zoology, used to refer to a small spine projecting from a larger one; alternative name for spinule and, sometimes, barbel. Also used to refer to cyprinid fishes of the genera Barbus, Puntius, Systomus and related species.

    Used in 189 profiles

  • barbel

    A slender, whiskerlike, external process on the jaw or other part of the head of certain fishes used for touch and taste. Also used to refer to European members of the cyprinid genus Barbus.

    Used in 319 profiles

  • maxillary barbel

    Barbel originating from the distal end of the maxilla on the side of the mouth.

    Used in 143 profiles

  • rictal barbel

    Barbel located between the upper and lower jaws, i.e., at or close to the corner of the mouth.

    Used in 2 profiles

  • cirrus

    Slender, hair-like, usually flexible appendage such as the arm of a barnacle or fused groups of cilia seen in some protozoans.

    Used in 1 profile

  • crustacean

    Any member of the predominantly aquatic arthropod grouping Crustacea which currently contains almost 70,000 recognised species, including all crabs, lobsters, crayfish, shrimp, krill and barnacles. It's difficult to define their characteristics since the group is of arguable hierarchical status, generally regarded to represent either a Phylum or Subphylum.

    Used in 421 profiles

  • Palghat Gap

    Also known as the 'Palakkad Gap', a low mountain pass representing the major break in the Western Ghats mountain range. The Nilgiri Hills rise to around 1100 m AMSL north of the gap and the Anaimalai Hills approximately 2000 m AMSL to the south, with average elevation within the gap 144 m AMSL. The gap has been shown to represent a biogeographic barrier restricting gene flow between populations of numerous species including Indian elephant and various birds.

    Used in 1 profile

  • reproductive isolation

    The inability of two or more groups of organisms to interbreed due to the existence of geographical, behavioral, physiological, or genetic barriers. These can be further separated into those being active pre- or post-copulation.

  • trickle tower

    Large filter particularly suitable for outdoor ponds and large aquaria, consisting of a series of vertically-arranged chambers filled with one or more types of media. Water is pumped to the top chamber where it is dispersed, most often using a spray bar. It then percolates down through the other chambers via gravity before being returned to the pond or aquarium.

  • 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.

  • riffle

    Short, normally shallow stretch of fast-flowing, turbulent water in a stream; a small rapid; a rocky shoal or sandbar causing such a rapid.

    Used in 105 profiles