damselfish


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damselfish,

common name for members of the large family Pomacentridae, marine fishes of tropical waters. Common in the West Indies and along the Florida coasts are the sergeant-major, named for its vertical stripes, and the reef fish, found among coral reefs. The clownfish and blue devil are popular aquarium species. Males of this family guard the eggs zealously. Damselfishes rarely grow to more than 6 in. (15 cm) in length. Certain members of the family, known as anemonefishes, are found associated with sea anemones, which are injurious to the fishes' predators, and which afford protection to the anemonefishes. Damselfish are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Actinopterygii, order Perciformes, family Pomacentridae.
References in periodicals archive ?
Diets of damselfishes also changed dramatically over the course of the year, the study found, fluctuating from periods where they mainly consumed coral to periods when their diets widened to include a suite of other organisms in the spring.
Of the small, benthic fish that used the grouper pits, cardinalfish, damselfish, and anthiids were the most abundant taxa (mean: 54.70 individuals/pit [SE 6.70]).
Caption: Young damselfish living in carbon dioxide-rich waters act oddly around predator odors compared with fish in areas with less C[O.sub.2] dissolved in the water.
There are also more than 30 species of reef-associated fish, including rare species like the sind damselfish and regal damselfish, both previously unseen in the area.
Spawning sounds of the domino damselfish, Dascyllus albisella (Pomacentridae), and the relationship to male size.
Customize with a variety of jellyfish, snails, hermit crabs and damselfish. Plus, color changing LEDs turn the tank into a rainbow light show.
She also used random opportunities at the park to work any other animal she happened to come across in the research center--such as a tiny octopus and a damselfish - just to see if she could train these species with positive reinforcement, too (she could).
Mechanism of light reflection in blue damselfish motile iridophores.
The damselfish genus Chromis is the largest of the family Pomacentridae.
Like miniature farmers, damselfish protect their own macro-algal gardens on coral reefs.
The scientists studied populations of the bicolour damselfish (above), a species found commonly on Caribbean coral reefs that has a 30-day larval stage.
Some organisms treat the coral as a hotel strip, such as the white-bellied damselfish (Amblyglyphidodon leucogaster), which McCoy captures sleeping in the branches of a sea fan coral.