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Schindleria brevipinguis  Watson & Walker, 2004

Stout infantfish
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| Native range | All suitable habitat | Year 2100 |
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Schindleria brevipinguis   AquaMaps   Data sources: GBIF OBIS
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Image of Schindleria brevipinguis (Stout infantfish)
Schindleria brevipinguis
Picture by Australian Museum

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Schindleriidae (Infantfishes)
Etymology: Schindleria: After Dr. D.W. Schindler, from Simon Fraser Univ. In Edmonton, Alberta, Canda; he studied the ecology of freshwater ecosystems;  brevipinguis: From the small size of the species ('brevi') and the deeper, broader ('pinguis' = stout) body.

Environment / Climate / Range Ecology

Marine; pelagic-oceanic; depth range 15 - 30 m (Ref. 52019).   Subtropical

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 1 - 0.8 cm
Max length : 0.8 cm SL (female)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 13; Anal soft rays: 10 - 11; Vertebrae: 35 - 36. Body small, stout, unpigmented. Body depth at pectoral-fin origin 9-12% of standard length and at anal-fin origin 9-14% SL. First dorsal-fin ray at myomere 18-20 and first anal-fin ray below dorsal-fin ray 4. Vertebrae 20 + 15-16 = 35-36, myomeres 19-20 + 14-16 = 34-36. Premaxillae and dentaries lack teeth. Males have a rod-like, flexible urogenital papilla lacking lobes, projections, or accessory papillae, with distal half tapering to a blunt point and usually anteriorly directed.

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: currently known only from the Lizard Island - Carter reef area of the Great Barrier Reef, Queensland, Australia and from Osprey Reef, nearby the Coral Sea.

Biology     Glossary (e.g. epibenthic)

Recently reported as the smallest vertebrate. Males average 7.7 millimeters long and the gravid female which is 8.4 millimeters weighed 1 milligram. This pedomorphic species has a life span of only 2 months, has dispensed its fishy appendages such as teeth and scales, and has no pigment except in the eyes (Ref. 52508). Specimens were collected in oblique plankton net tows (Ref. 52019).

Main reference Upload your references | References | Coordinator | Collaborators

Watson, W. and H.J. Walker Jr., 2004. The world's smallest vertebrate, Schindleria brevipinguis, a new paedomorphic species in the family Schindleriidae (Perciformes: Gobioidei). Rec. Aust. Mus. 56:139-142. (Ref. 52019)

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki |

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  2.9   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Assuming Fec < 100).
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .
Price category (Ref. 80766):   Unknown.