Tag Archive: fresh water tropical

Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Cichlidae
Tribe: Lamprologini

Genus/species: Neolamprologus species

Male Neolamprologus brevis for example reach lengths of just 4.5 cm (1.75 inches) while females are even smaller, around 3 cm (1.25 inches) long. These cichlids probably evolved from fish that lived in rocky cave, but pressure from competition and the many predators of Lake

Lake Tanganyika has very high levels of carbonate hardness, and the calcium in the water ensures that empty shells dissolve much more slowly than they do in most rivers and lakes. In some places there are piles of shells more than 3 metres (10 feet) deep.

DIET IN THE WILD: Zooplankton and small invertebrates

REPRODUCTION: To protect their young eggs are laid by the female within a shell and fertilized as she lays them or immediately after by the male.The female protect the eggs within the shell by fanning her pectoral fins to keep the internal water oxygenated, and often rearranging the substrate to create barriers or to hide the shell from predators.

The eggs hatch within 48 hours, and the yolk sac is absorbed within five days. Fry typically emerge from the shell a week after spawning and they remain benthic for days or weeks after their emergence.


California Academy of Sciences Steinhart Aquarium Animal Attractions 2017

Ron’s flickr https://www.flickr.com/photos/cas_docents/15764972796/in/album-72157629304397467/

EOL eol.org/pages/5344/details

Conscientious Aquarium www.wetwebmedia.com/ca/volume_7/volume_7_1/shell_dwell.html

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

Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Cyprinodontiformes (Rivulines, killifishes and live bearers)                                                                                        Family: Poeciliidae

Genus/species: Alafro cultratus

Alafro cultratus16167676782_36fa409f32_k


DISTRIBUTION/HABITAT: Central America: Costa Rica, Panama and Nicaragua. Found in rapidly flowing rainforest streams.

DIET IN THE WILD: Insectivorous, aquatic and terrestrial insects.

REPRODUCTION: Internal live bearers. Gestation lasts for about 24 days. Produces 10 to 30, rarely more, young.



fishbase www.fishbase.gr/summary/46449

Encyclopedia of Life eol.org/pages/1157656/hierarchy_entries/44712641/details

Ron’s flickr https://www.flickr.com/photos/cas_docents/16167676782/in/set-72157620708938680

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

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


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

Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Characiformes (Characins)
Family: Serrasalmidae

Genus/species: Metynnis hypsauchen

GENERAL CHARACTERISTICS: Almost circular in profile; juveniles may be spotted or striped; adults solidly silver with anal and caudal fins edged in red or orange. Length : 15.0 cm (6 inches).

DISTRIBUTION/HABITAT: Tropical South America primarily Amazon and Orinoco basins. Found in calm river reaches overhung by foliage.

DIET IN THE WILD: Generally herbivorous, eating leaves of river plants; occasionally eats worms and small insects.

REPRODUCTION: Group spawners. Eggs hatch in 3 days.


REMARKS: A schooling species related to piranhas.
Possesses powerful dentition that can cause serious bites.

Amazon Flooded Tunnel AM11


Ron’s flickr  https://www.flickr.com/photos/cas_docents/6343628168/in/set-72157620568438047/

fishbase  fishbase.org/summary/Metynnis-hypsauchen.html

Encyclopedia of Life  eol.org/pages/217649/details

Ron’sWordpress shortlink  http://wp.me/p1DZ4b-cl


Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (Ray-finned fishes)
Order: Characiformes (Characins)
Family: Prochilodontidae (Flannel-mouth characiforms)

Genus/species: Semaprochilodus taeniurus


GENERAL CHARACTERISTICS: Laterally compressed, silvery body. Caudal fin horizontally striped with 6+ black bands, alternating with deep gray bands.  Length to 24 cm (9.5 inches). 


DISTRIBUTION/HABITAT: Amazon basin and its tributaries
such as the Rio Negro. Migrates and spawns in river channels but feeds mostly in the floodplains.

DIET IN THE WILD: Periphyton (a complex mixture of algae, cyanobacteria, microbes and detritus that is attached to surfaces in most aquatic ecosystems).

CONSERVATION: IUCN Red List Least concern, CITES; Not Evaluated. S. taeniurus is one of the most common fish in the Amazon basin and the most abundant

flagtail prochilodusFllagtail Prochilodus  Semaprochilodus insignis (Prochilodontidae) Flannel-mouthed Characins  IMG_3094


REMARKS: Has two stomachs. One filled with mud and likely designed to process and  digest detritus.

 Amazon Flooded Tunnel

Ron’s flickr https://www.flickr.com/photos/cas_docents/8532474845/in/set-72157620568438047

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

fishbase  www.fishbase.us/summary/11898

 Encyclopedia of Life  eol.org/pages/1010276/details


Kingdom: Animalia
Class: Actinopterygii (Ray-finned fishes)
Order: Characiformes (Characins)
Family: Anostomidae (Headstanders)

Genus/species: Leporinus fasciatus

GENERAL CHARACTERISTICS: Noted by its alternating bands of black and yellow. This striking pattern also suggests the age of a fish. Until about a year old, the juvenile has only five black bands, but about every six months later a band will split in two. At three years, the leporinus will have 10 bands, and the yellow will have a more orange cast. Females are larger than males. Max.length: 30 cm (12 in), though 15 cm (6 in) is more common. 

DISTRIBUTION/HABITAT: Widely distributed in South America, from Guiana and the Orinoco region to the La Plata basin. Its natural habitat is rocky areas of fast-flowing streams and rivers, though it often migrates into flooded forest areas during the rainy season. 

DIET IN THE WILD: Small invertebrates such as worms, insects, and crustaceans as well as other fish and plant matter. 

REPRODUCTION and DEVELOPMENT: The species is reported to build nests where the female lays eggs, which are guarded by the male. (fishbase)

MORTALITY and LONGEVITY: Life span: 5 years or more.

CONSERVATION: IUCN Redlist and CITES; Not Evaluated 

REMARKS: Leporinus (”rabbit”) relates to this fish’s two prominent front teeth The species is also known to leap out of the water, so perhaps its name has more than one reference point!

Like all members of its family, it very often positions itself had down to feed in rocky crevices or nibble on algae and green plants.


fishbase www.fishbase.org/summary/Leporinus-fasciatus.html

Ron’s WordPress Shortlink   http://wp.me/p1DZ4b-9j

Ron’s flickr https://www.flickr.com/photos/cas_docents/2973195125/in/set-72157620568438047/


Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Characiformes
Family: Characidae (Characins)
Subfamily: Serrasalmidae

Genus/species: Piaractus brachypomus

GENERAL CHARACTERISTICS: Body is deep and laterally compressed, with silvery sides (becoming darker approaching the dorsum) and red coloration on the belly, chin, pectoral fins, and occasionally the leading rays of the anal fin. As in other characin species, a small, unrayed adipose fin is present approximately midway between the dorsal and caudal fins.The remaining rayed fins are uniformly dark-colored. Weight to 25 kg
(55.07 lb). Length 25 to 88 cm (9.84 to 34.65 inches).

Pirapitinga aka Red-bellied Pacu6502615125_d1410c5c16_b

DISTRIBUTION/HABITAT: Tropical. South America: Amazon and Orinoco River basins in open water of large rivers and seasonally flooded forests.

DIET IN THE WILD: Insects and decaying fruits and vegetation that fall in water. (Do these fish celebrate the inevitable last flight of a bola butterfly?)

REPRODUCTION: External fertilization. Although parents abandon their eggs, pacu are brood- hiders, minimizing the chances of the clutch being discovered by predators.
Lifespan to 25+ years.

CONSERVATION: IUCN Red list; Not evaluated CITES No special status

Pirapitinga aka Red-bellied Pacu8412647627_064badee18_k

REMARKS: Because pacu are closely related to piranha, sharing their coloration and shape, Hollywood producers have been known to use the pacu as a stand-in for piranha. Actors are appreciative of the pacu’s preference for vegetable matter.

Pacu’s dentition allows them to crush fruit, nuts and seeds. Their teeth are cusped and resemble human molars, and they also have very powerful jaw. Can cause serious bites.

Like the tambaqui, an important aquacultured food fish in South America.

Amazon Flooded Tunnel


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

Ron’s flickr  https://www.flickr.com/photos/cas_docents/6502615125/in/set-72157620568438047

 fishbase www.fishbase.org/summary/5808

 Animal Diversity Web ADW animaldiversity.ummz.umich.edu/accounts/Piaractus_brachyp…


Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Perciformes (Perch-likes)
Family: Cichlidae (Cichlids)

Genus/species: Satanoperca leucosticta

 GENERAL CHARACTERISTICS: An elongated, laterally compressed greenish-yellow to yellow-brown cichlid with a large, rounded head with light spots on the cheek and operculum.  Max. length 15 cm (6 inches).


White-spotted Eartheater 2975336785_8bdf4b4483_b

 DISTRIBUTION/HABITAT: South America: Essequibo River in Guyana and Nickerie River in Suriname.

 DIET IN THE WILD: Common name derived from this fish’s almost constant digging in the sand for prey (insects, crustaceans).

 REPRODUCTION: Fish in this genus are mouth brooders. The parents take turns brooding and spit the fry into the partner’s mouth when their shift is over. 

 CONSERVATION: IUCN Redlist; Not Evaluated.

 REMARKS: Genus name translates as “eartheater.” This common name applies to many species. A small, but popular food fish. 

 Flooded Amazon,  Anaconda Exhibit, AM03


Ron’s WordPress shortlink  http://wp.me/p1DZ4b-1o1

Fishbase search.yahoo.com/search?ei=utf-8&fr=aaplw&p=www.f…

 Mongabay.com fish.mongabay.com/species/Satanoperca_leucosticta.html

 Cichlid forum: www.cichlid-forum.com/articles/sat_cf_leucosticta_amazonr…

2-2-09, 10-10-13, 9-1-14 10-19-14

Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-finned fishes)
Order: Perciformes (Perch-likes)
Family: Cichlidae (Cichlids)
Subfamily: Cichlasomatinae

Genus/species: Pterophyllum altum

Altum Angelfish 4689972848_189e460e8f_b

GENERAL CHARACTERISTICS: Extremely compressed silvery body with two broad dark vertical bands. Remarkably long trailing pelvic fins. Altum refers to the dramatic height of their dorsal and anal fins. Length to 18 cm (7 inches). Max height 20 cm (7.87 inches). Orbital indentation differentiates from Pterophyllum scalare.

DISTRIBUTION/HABITAT: South America: Amazon basin, in the upper Rio Negro drainage; Orinoco River basin.


REPRODUCTION and DEVELOPMENT: External fertilization. Monogamous; pairs persist until partner dies or is separated. Clutch-tending guarders.

Altum Angelfish 3787890518_a572b4929f_b

MORTALITY/LONGEVITY: Preyed upon by other fishes. Subject to bacterial diseases and protozoan, fungal and worm infestations.

CONSERVATION: IUCN: Not evaluated.

Flooded Amazon AM05

Ref. fishbase, EOL

flickr http://www.flickr.com/photos/cas_docents/4689972848/in/set-72157608376694453/

WordPress shortlink http://wp.me/p1DZ4b-18q

Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii (ray-fin fishes)
Order: Cyprinodontiformes (Rivulines, killifishes and live bearers)
Family: Nothobranchiidae (African rivulines)

Genus/species: Fundulopanchax avichang

Avichang killifish Fundulopanchax avichang IMG_5151

DISTRIBUTION/HABITAT: Africa: Cameroon, freshwater

CONSERVATION: IUCN Red List Endangered (EN)



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

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

%d bloggers like this: