Results for “sympatric”

This species is very similar to Hemiancistrus subviridis in appearance and the two occur sympatrically in nature, although B. demantoides is less common in the aquarium trade. Both have been marketed under the DATZ code L200 with B. demantoides sometimes referred to as 'L200 high-fin' or 'L200a', the former name in reference to its comparatively long dorsal-fin spine (average length in the type series 42.1 mm vs. 34.3 mm in H. subviridis).

Restricted to remnant blackwater habits in heavily-disturbed areas of former peat swamp forest, the original vegetation having been cleared to make space for plantations of oil pal, pineapple and rubber. It's now typically found among overhanging marginal vegetation of irrigation canals, with sympatric species including Belontia hasseltii, Betta bellica, B. imbellis, Sphaerichthys osphromenoides, Parosphromenus sp., and Trichopsis vittata. PH in its natural waters has been recorded over the range 3.9 - 4.2.

Known only forest hill streams with flowing, clear water. These are typically shaded from the sun by dense riparian vegetation. The substrate is composed of rocks or gravel, fallen leaves, branches and submerged tree roots, and presumably the fish show a preference for quieter marginal zones as with related congeners. The type locality was described as a 'swampy stream' and sympatric species incl...

Appears to be endemic to southwestern Borneo though occurence records are scant. Type locality is 'Bandjarmasin', a port town in the Indonesian province of Kalimantan Selatan (South Kalimantan), and following Kottelat (1991) it's range extends westwards as far as the Jelai Bila river basin, near the town of Sukamara, where it's said to occur sympatrically with the congener B. merah. Boraras was erected in 1993 in order to separa...

Appears endemic to southern Borneo. The type specimens were collected from the Jelai Bila river basin at Nataik Sedawak, presumably a settlement of some kind, near the town of Sukamara in the Indonesian province of Kalimantan Tengah (Central Kalimantan). Its range extends westwards from the Jelai Bila watershed whereas that of the congener B. brigittae, with which it may occur sympatrically there (see 'Notes'), extends east.

The type locality is an area of permanently-flooded grassland formed by the damming of a spring for agricultural purposes. The water is only around 30cm deep, transparent and supports dense growths of aquatic plants, mostly from the family Hydrocharitaceae which includes such genera as Elodea, Egeria and Blyxa. Sympatric species included Devario sondhii, a Microrasbora very similar to M. rubescens, an undescribed Yunnanilus known to aquarists as the 'rosy' loach and Channa harcourtbutleri.

In the upper Iténez it most commonly inhabits riparian zones with sandy substrates or edges of sand banks, although it's also been collected in smaller streams and residual flood waters. It typically forms large aggregations of up to several thousand individuals and at the confluence of the ríos Paraguá and Iténez occurs sympatrically with the congener C. paragua.

Inhabits moderate to fast-flowing, well-oxygenated, lowland streams and rivers with pH measured to range between 5.4 and 8.0 and temperature 22-31°C/71.6-87.8°F, while conductivity at one habitat was 600 µS. Substrates may be composed of open mud or sand, or strewn with variably-sized boulders depending on locality, while aquatic plants have not been observed. It occurs sympatrically with the convict cichlid, Amatitlania nigrofasciata with oth...

In the exceptionally diverse Danau Sentarum lake system of the upper Kapuas River basin, West Kalimantan, sympatric species include Scleropages formosus, Barbonymus gonionotus, B. schwanenfeldii, Crossocheilus nigriloba, Cyclocheilichthys apogon, C. repasson, Epalzeorhynchos kalopterus, Labiobarbus ocellatus , Leptobarbus hoevenii, Luciosoma spilopleura plus various representatives of Barbodes, Rasbora and Osteochilus.

Tends to be most common in brackish to hypersaline environments such as coastal salt marshes, lagoons and estuaries. On San Salvador Island, Bahamas, it appears to be the parent of a species group occurring in sympatry and exploiting diverse but specific resources with some spectacular morphological adaptations.

This species has mostly been collected from small (1-2 metres wide, 20-40 cm deep), moderate-to-swiftly-flowing streams with clear water, substrates of sand, gravel and rocks and no aquatic vegetation. Marginal vegetation was present in some cases, offering a degree of shade, and sympatric species included an unidentified Schistura sp., S. vinciguerrae, Misgurnus anguillicaudatus, Garra qiaojiensis,...

Wild examples are rarely-seen in the aquarium hobby although selectively-bred ornamental strains are widely-available for which care is identical. These are normally traded as 'red' or 'yellow' chromide and have a solid yellow-orange colour pattern with no dark elements. It exhibits a widespread sympatry with the con...

The Naung Pin Thar Chaung is located in a hilly area mostly comprising bamboo forest. In 1998 the water was clear, colourless and flowing at a moderate pace over a substrate of rocks and gravel. It was 1-2 metres wide and maximum depth was only 0.5 metres. Due to the surrounding forest some stretches were shaded and others more open. Sympatric species included Garra spilota, Homalopteroides modestus, Mystus pulcher, and Xenentodon cancila, plus...

The type locality is located in a hilly area mostly comprising bamboo forest. At time of collection the water was clear, colourless and flowing at a moderate pace over a substrate of rocks and gravel. It was 1-2 metres wide and maximum depth was only 0.5 metres. Due to the surrounding forest some stretches were shaded and others more open. Sympatric species included...

In fact G. farragus and G. ocellatus represent one of 12 pairs of cryptospecies to be found in the genus, differing in subtle aspects of patterning. Cryptospecies are defined as morphologically similar, but reproductively isolated species which in fishes often inhabit adjacent river basins but in some cases occur sympatrically. The phenomenon may be a result of parallel evolution, and is not normally considered to represent an early stage of speciation.

Field observations have revealed that individuals almost always position themselves facing into the flow, either along the sides, behind or under rocks, their specialised morphology (see 'notes') allowing them to feed and maintain position without being swept away. In nature G. monticola occurs sympatrically alongside Garra borneensis, Osteochilus ingeri, Gastromyzon auronigrus, G. cornusaccus, Nemacheilus olivaceus,...

Although only described in 2006 this species has been known in the hobby since at least 1988 when it was imported to Germany and traded as G. sp. 'Parnaíba'. An undescribed species from the rio Pindaré in Maranhão state usually sold as G. sp. 'Pindaré' is sometimes labelled G. sp. 'Pindaré' (Parnaíba) which has resulted in some confusion but the two do not occur sympatrically and are totally distinct from one another.

Predominantly a riverine fish preferring clear, well-oxygenated, running waters with substrates of sand, gravel, rock or mud, typically flowing through tropical forest. In the habitat seen in our images sympatric fish species included Barbonymus balleroides, B. collingwoodi, Cyclocheilichthys repasson, C. apogon, Diplocheilichthys pleurotaenia, Garra borneensis, Leptobarbus hosii, and an unidentified Gastromyzon sp.

The water at the type locality is described as 'clear and fast-flowing over a rocky substratum'. H. parclitella was observed in shallow water among the rocks, and sympatric species included Garra cambodgiensis, Neolissochilus soroides, Poropuntius smedleyi, 'Puntius' binotatus, Homaloptera nebulosa and Amblyceps mangois.

In the aquarium hobby the name Hyphessobrycon stegemanni has frequently been misapplied to a species that has been described as Hemigrammus ataktos Marinho, Dagosta, & Birindelli 2014. The reasons for this confusion are presumably that the two occur sympatrically in the rio Tocantins system and both possess a dark lateral stripe on the body.