Tag Archive: rainbowfishes


TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Atheriniformes (Silversides)
Family: Melanotaeniidae (Rainbow fishes)

Genus/species: Melanotaenia trifasciata

GENERAL CHARACTERISTICS: The coloration of Melanotaenia trifasciata is variable depending on location, water conditions and diet. Populations from almost every river system where they are found have their own distinctive body color with up to 30 varieties. They can be recognised by a very deep body, usually deeper than 1/3 of their body length, and an often discontinuous black mid-lateral band3059546344_bed3615034_o

Length up to 15 cm (6 in)

Rainbowfish3059546154_5f846da4d4_o

DISTRIBUTION/HABITAT: Northern Territories and Queensland, Australia. Found mainly in small streams and waterholes in clear to moderately turbid water. Occurs over rocky or gravel bottoms or in well vegetated areas, frequently around submerged logs and branches.
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DIET IN THE WILD: Omnivore feeding in the surface and mid-water regions. The main food items are aquatic insects, algae and terrestrial insects such as green ants.

MORTALITY/LONGEVITY: Life span: 5–8 years.

IUCN RED LIST Not Evaluated

References

California Academy of Sciences Steinhart Aquarium Water Planet 2016

Fishbase http://www.fishbase.org/summary/Melanotaenia-trifasciata

Rainbowfish rainbowfish.angfaqld.org.au/Trifas.htm#Top_of_Page

Ron’s flickr https://www.flickr.com/photos/cas_docents/3059546154/in/album-72157662094208792/

Ron’s WordPress Shortlink http://wp.me/p1DZ4b-1J6

 

 

 

 

TAXONOMY
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Atheriniformes (Silversides)
Family: Bedotiidae (Madagascar rainbowfishes)

Genus/species: Bedotia madagascarensis

GENERAL CHARACTERISTICS: Second dorsal fin is golden-yellow basally, with a dark red margin and broad black submarginal band. Anal fin similarly colored, but a golden-yellow zone is sandwiched between a narrow black basal and a broader black submarginal band. Males are conspicuously more colorful than females with more distinct markings and redder tails. Length to 9 cm (3.5in).

 

DISTRIBUTION/HABITAT: Endemic to Madagascar’s coastal rivers. Found in well-shaded slow-flowing streams at altitudes up to 30 meters (100 feet) above sea level.

DIET IN THE WILD: Insects and their larvae, crustaceans and other small invertebrates.

REPRODUCTION: Sexes are separate. Fertilization is external. Eggs are broadcast in open water and not guarded.
Mortality/Longevity: Lifespan about 5 years.

CONSERVATION: IUCN Red List Near Threatened (NT)
Limited range, habitat degradation and exotic predators such as (Gambusia holbrooki) and competitors (Xiphophorus spp.).

Sexes are separate. Fertilization is external. Eggs are broadcast in open water and not guarded.
Mortality/Longevity: Lifespan about 5 years.

LOCATION: Rainbowfish of  Madagascar  MD05

References

Encyclopedia of Life  eol.org/pages/343730/details

arkive  www.arkive.org/zono/bedotia-madagascariensis/image-G52355…

fishbase www.fishbase.org/summary/Bedotia-madagascariensis.html

IUCN  www.iucnredlist.org/details/2721/0

Ron’s flickr http://www.flickr.com/photos/cas_docents/sets/72157627949403670/

Ron’s WordPress shortlink  http://wp.me/p1DZ4b-yY


TAXONOMY
Kingdom: Animalia
Phylum:Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae (carps, true minnows, and their relatives (as the barbs and barbels).
Subfamily: Barbinae (Barbs)

Genus/species: Pethia padamya

GENERAL CHARACTERISTICS: This species exhibits sexual dimorphism. The male has a beige to light brown background with a bright red stripe running the length of the body. The dorsal, anal, and pelvic fins of the male are yellowish-green in color with contrasting black spots.

The female is light beige with a silvery sheen on the scales. The fins are a light yellowish-green; however, only the dorsal fin contains the contrasting black spots, which are fainter than those of the male. Both sexes have a black and prominent spot in the dorsal area, as well as a smaller spot in the caudal area. Average length is 4.5cm or about 2 inches.

 OdessaBarb9830844836_7a262035df_k

DISTRIBUTION/HABITAT: Central Myanmar in one pond (Toe Gyi village) and one river.

DIET IN THE WILD: Not well-studied, omnivores. Cyprinids are stomachless fish with toothless jaws. Even so, food can be effectively chewed by the pharyngeal teeth the gill rakers of the specialized last gill bow.

CONSERVATION: IUCN; Data Deficient (DD) Has a restricted range in wild. It is known only from two locations in central Myanmar, but more research is needed to find the exact distribution, population and threats, and it appears to be widely available in the aquarium trade.

REMARKS: Named “Odessa barb” because it was said to have first appeared in pet enthusiast’s circles in Odessa, Ukraine in the early 1970s.

Location: Southeast Asia Community (Borneo).

References

fishbase  www.fishbase.org/summary/Puntius-padamya.html

Encyclopedia of Life  eol.org/pages/4627441/details

Ron’s WordPress shortlink  http://wp.me/p1DZ4b-1r0

Ron’s flickr  https://www.flickr.com/photos/cas_docents/5518559419/in/set-72157627795872023/

TAXONOMY

Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Atheriniformes (Silversides)
Family: Melanotaeniidae (Rainbowfishes, blue eyes)

Genus/species: Iriatherina werneri

Threadfin rainbow fish, Iriatherina werneri IMG_7039

GENERAL CHARACTERISTICS: Length up to 5 cm (2.0 in) not including the long tail.

DISTRIBUTION/HABITAT: Northern Australia and Indonesia on the island of New Guinea in slow-moving streams, freshwater swamps, lagoons, and billabongs. It’s most commonly found in heavily vegetated, marginal habitats less than 1.5 m in-depth.

DIET IN THE WILD: Phytoplankton, diatoms, and other zooplankton.

REPRODUCTION: Egg-scatterer exhibiting no parental care and will consume its own eggs and fry given the opportunity.

Threadfin rainbow fish, Iriatherina werneri IMG_7044

Water Planet  In and Out of Water Cluster WP12

WordPress Shortlink  http://wp.me/p1DZ4b-VS

flickr http://www.flickr.com/photos/cas_docents/sets/72157608614099673/

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