Ecology

Habitat

Depth range based on 340 specimens in 16 taxa.
Water temperature and chemistry ranges based on 228 samples.

Environmental ranges
  Depth range (m): 0.1 - 150
  Temperature range (°C): 22.496 - 29.336
  Nitrate (umol/L): 0.000 - 12.974
  Salinity (PPS): 30.220 - 37.566
  Oxygen (ml/l): 2.391 - 5.079
  Phosphate (umol/l): 0.073 - 1.171
  Silicate (umol/l): 0.636 - 16.407

Graphical representation

Depth range (m): 0.1 - 150

Temperature range (°C): 22.496 - 29.336

Nitrate (umol/L): 0.000 - 12.974

Salinity (PPS): 30.220 - 37.566

Oxygen (ml/l): 2.391 - 5.079

Phosphate (umol/l): 0.073 - 1.171

Silicate (umol/l): 0.636 - 16.407
 
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:90Public Records:56
Specimens with Sequences:78Public Species:8
Specimens with Barcodes:74Public BINs:11
Species:10         
Species With Barcodes:10         
          
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Barcode data

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Source: Barcode of Life Data Systems (BOLD)

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Valenciennea

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Wikipedia

Valenciennea

Valenciennea is a genus of small, bottom-dwelling fish from the family Gobiidae. They are found over sandy bottoms, often at coral reefs, in the Indo-Pacific. The members of the genus tend to rest directly on the substrate for extended periods of time. While this is a common behavior for members of the family, the Valenciennea also float motionless directly above the substrate, which is why they are sometimes called hover gobies. Their resting behavior has resulted in the vernacular name "sleeper gobies", which invites confusion with the related family Eleotridae.

The members of this genus are known to be carnivorous sand-sifters; to eat, they simply engulf entire mouthfuls of sand which they expel through their gills. Specialized structures in their gills filter small crustaceans and worms as the sand is expelled. It is this specific trait that makes some members of the genus attractive to the marine aquarist, and they are often introduced into a marine aquarium for sand-sifting.

Some of the species are known to be monogamous.

The genus was named after notable French zoologist Achille Valenciennes.

Tank compatibility[edit]

These fish are difficult to keep in a tank. Tanks with plenty of live sand and live rock are recommended. Offer foods such as sinking shrimp pellets. Fish may die even if eating properly.

Species[edit]

There are currently 15 recognized species in this genus:[1]

References[edit]

  1. ^ Froese, Rainer, and Daniel Pauly, eds. (2013). Species of Valenciennea in FishBase. June 2013 version.
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