Glossary

58 terms beginning with G · showing 41–58

1. Gram's method

   Method of differentiating bacterial species into groups based on the structure of their cell walls, using a particular, violet-coloured, staining technique.

2. granular

   Resembling or consisting of small particles or granules; having a rough texture or structure.

   Used in 6 profiles

3. gravel

   Unconsolidated mixture of rock fragments commonly used as a substrate in aquaria. Also forms the filter medium in undergravel filtration.

   Used in 711 profiles

4. gravid

   Pregnant or egg-bound; carrying eggs or young.

   Used in 207 profiles

5. graze

   To feed continuously throughout a given period.

   Used in 85 profiles

6. Great Artesian Basin

   Largest and deepest artesian basin in the world, located in Australia and measuring around 1,711,000 square kilometres (661,000 sq mi). It covers most of Queensland, the south-east corner of the Northern Territory, northeastern South Australia, and northern New South Wales.

7. green water

   Term used to describe water with a green-coloured, soupy appearance caused by an excess of phytoplankton in suspension, often as a result of eutrophication. Also known as an algal bloom.

   Used in 7 profiles

8. gregarious

   Living together with others of the same kind; sociable.

   Used in 334 profiles

9. grindal worm

   Vernacular name for the annelid worm Enchytraeus buchholzi (Vejdovsky, 1879), a species commonly cultured by aquarists for use as live fish food. Smaller, more adaptable, and temperature-tolerant than the related white worm, Enchytraeus albidus Henle, 1937.

   Used in 78 profiles

10. groundwater

    Water held beneath the Earth's surface. Typically supplies wells and springs.

    Used in 6 profiles

11. grow out

    To grow fishes to a size at which they are marketable or can be passed on to other aquarists.

    Used in 1 profile

12. guanin

    See guanine.

13. guanine

    Crystalline chemical compound giving a metallic, iridescent golden, silvery, white, blue or greenish sheen to the scales of certain fishes. Occurs naturally in some fish species but in others its formation is driven by parasitic infection.

    Used in 4 profiles

14. gular

    Of, relating to, or located on the throat.

    Used in 11 profiles

15. gustation

    The act or sense of taste.

16. gustatory

    Of or relating to gustation.

17. gut

    Entire or lower alimentary canal; intestine.

    Used in 28 profiles

18. gut loading

    Process by which live prey is raised and fed nutritious foods prior to use, e.g., feeding crickets on dried fish food or fresh vegetables before being offered to the fish.

    Used in 4 profiles