Synonyms for cavefish or Related words with cavefish
Examples of "cavefish"
"Forbesichthys agassizi", spring
, the only Missouri
can only be found in caves that have streams running into them; a cave with no inlets does not contain
The breeding behavior of spring
is sparsely documented. Spawning occurs underground and in darkness between January and April. Spring
are oviparous; however, the eggs are carried in gill chambers of the females. Females produce roughly 100 young per female. The average spring
lives for about three years and typically reaches a length of about 1.8 to 2.6 in.
or cave fish, also known as hypogean fish, is a generic term for freshwater fish adapted to life in caves. Being aquatic, they are a part of the troglobite group known as stygofauna. The approximately 170 species of
are found in all continents, except Antarctica and Europe. Although widespread as a group, many
species have very small ranges and are seriously threatened.
are members of a wide range of families and do not form a monophyletic group. Typical adaptions found in
are reduced eyes and pigmentation.
("Amblyopsis hoosieri") is a subterranean species of blind fish from southern Indiana in the United States. Described in 2014, "A. hoosieri" was the first new species of
from the U.S. to be discovered in 40 years.
"Amblyopsis rosae" lives in caves with a relatively large source of nutrients, such as bat guano or blown leaf litter. Water quality in caves that contain
is usually high. Ozark
tolerate water with extremely low oxygen content.
Identified rare fish in the Buffalo include eight varieties of Darters, one catfish (Saddled Madtom), and one
). Most of the identified darters are listed as either Threatened or Endangered by either the State or Federal government.
are probably ancient in origin. Adaptations common to many
include reduced susceptibility to light, pigment loss, or reduction in skin scales, as well as development of chemoreceptors in the sensory organs of the body surface and the lateral line. Three species exhibit efficient metabolism during swimming, as compared with a group of non-cave fish, and many
species exhibit slender bodies adapted to swimming in fast-flowing waters.
Caves which have populations of the Ozark
all have a relatively large source of nutrients, such as bat guano or blown leaf litter. Water quality in caves containing them is usually high. They are able to tolerate the extremely low oxygen content of ground water found in caves.
tend to occur in flowing cave streams as opposed to quiet pools. The Ozark
can receive nutrients from the tree roots above the cave. The roots are full of nutrients and water. The roots spread photosynthetic products in the cave, so organisms like Ozark
and other species are able to feed on the roots.
Only 9 specimens of the
have been observed, and scientists estimate fewer than 100 are left. This fish is believed to be the rarest of North American
and one of the rarest of all freshwater fish. It is the most specialized
known, and exists in a fragile ecosystem based on nutrient-rich guano of the gray bat. Researchers have failed to find the fish in any other location.
Some deep sea and deep river fish have adaptions similar to the
, including reduced eyes and pigmentation.
biker gang from the LucasArts game "Full Throttle" were designed to resemble Tusken Raiders in appearance.
Many aboveground fish may enter caves on occasion, but obligate
(fish living strictly in caves) are extremophiles with a number of unusual adaptions known as troglomorphism. In five species, the Mexican tetra, shortfin molly, Oman garra, "Aspidoras albater" and "Pterocryptis bucccata", both "normal" aboveground and
forms exist. Living in darkness, pigmentation and eyes are useless and typically reduced in
. Other examples are a loss of scales, swim bladder and behaviors such as certain types of display. The loss can be complete or only partial, for example resulting in small (but still existing) eyes. In some cases, "blind"
may still be able to see; juvenile Mexican tetras of the cave form are able to sense light via certain cells in the pineal gland. In the most extreme cases, the lack of light has changed the circadian rhythm (24-hour internal body clock) of the
. In the Mexican tetra of the cave form and in "Phreatichthys andruzzii" the circadian rhythm lasts 30 hours and 47 hours, respectively. This may help them to save energy. Without sight, other senses are used and these may be enhanced. Examples include the lateral line for sensing vibrations, chemoreception (via smell and taste buds), electroreception, and mouth suction to sense nearby obstacles (comparable to echolocation).
are quite small with few species surpassing in length. At up to , the blind cave eel is the longest known
Some fish (popularly known as
) and other troglobite organisms are adapted to life in subterranean rivers and lakes.
National Wildlife Refuge is a 40-acre (16-ha) National Wildlife Refuge located in Lawrence County, Missouri, 20 mi (32 km) west of Springfield. The United States Fish and Wildlife Service acquired the land in 1991 to protect the endangered Ozark
Its longevity ranges from five to 10 years, but it reproduces slower than all other cave-dwellers. Because its known range is limited to a single cave, the Alabama
has an uncertain future, being threatened by changes in groundwater quality and level, changes in aquifer characteristics, and diminished organic input. It also may compete with the syntopic southern
, "Typhlichthys subterraneus".
Cave habitats are vulnerable to changes in the environment such as water pollution and exotic species. The World Conservation Union has placed four
species on its Red List of threatened species. Alabama
, "Speoplatyrhinus poulsoni", which live only in certain caves in Alabama, are listed as Critically Endangered, the highest risk class.
breed only once a year, occupying about 10% of the population. The eggs are large and are protected for four to five months over the gills of the female cavity.
protect their eggs for the longest period of any fish.
The staff at the Neosho Fish Hatchery also protect the endangered Ozark
in one of the springs that supplies the hatchery with water. In 1989, staff discovered Ozark
using the spring. In 2002 efforts were taken to protect the area surrounding.
, "Speoplatyrhinus poulsoni", is a critically endangered
found in underground pools in Key Cave, located in northwestern Alabama, United States in the Key Cave National Wildlife Refuge. This is the only known location of the fish, and it was discovered underneath a colony of gray bats in 1974 by Cooper and Kuehne.
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