เข้าสู่ระบบ สมัครสมาชิก
มากกว่า

galaxiids การใช้

ประโยคมือถือ
  • Like all galaxiids it lacks scales and has a thick, leathery skin covered with mucus.
  • The AMLR region comprises 20 native freshwater fish, including catfish, galaxiids, lampreys and eels.
  • Some galaxiids live in fresh water all their lives, but many have a partially marine lifecycle.
  • Galaxiids are scaleless and somewhat tubular in body form, ranging from very slender to quite bulky.
  • They are typically found at temperate latitudes across the Southern Hemisphere and are frequently referred to as galaxiids.
  • Kokopu are galaxiids and like others members of that family lacks scales and has a thick, leathery skin covered with mucus.
  • Freshwater galaxiid species are gravely threatened by exotic salmonid species, particularly trout species, which prey upon galaxiids and compete with them for food.
  • Introduced salmoniids also have a negative impact on diadromous galaxiids, competing with them for food and habitat, as well as preying on them.
  • In addition to serious impacts from exotic trout species, Australian adult galaxiids suffer a disregard from anglers for being " too small " and " not being trout ".
  • Galaxiids are the dominant group of native freshwater fish in New Zealand, and, along with the Percichthyidae, one of two dominant groups of native freshwater fish in southeastern Australia.
  • In most situations, wholly freshwater galaxiids are unable to persist in the presence of exotic trout species, and many are now restricted to the few remaining trout-free habitats.
  • Where these species are found in the presence of trout, the galaxiids usually consist entirely of individuals which dispersed there from an upstream trout-free population, and are not self-sustaining.
  • The "'Galaxiidae "', also known by the anglicised name as "'galaxiids "', are a family of mostly small freshwater fish in the Southern Hemisphere.
  • In a study done by Keane et al ., 2004, one major threat to Tasmanian fauna could be to native galaxiids, as suggested by the fact that mosquitofish are known to attack and kill adult " Galaxias gracilis " in New Zealand.