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Bythitidae - - Classification -
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Grammonus thielei
Picture by Thiele, W.
Pictures | Google image
Picture by Thiele, W.
Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) > Ophidiiformes (Cusk eels) > Bythitidae (Livebearing brotulas)
Etymology: Grammonus: Greek, gramma = signal, mark + Greek, onos = hake; thielei: Named for Werner Thiele, who photographed and caught the holotype.
Eponymy: Werner Thiele (d: 1966) is an Austrian self-taught underwater photographer. He was the first person to photograph and capture this species. (Ref. 128868), visit book page.
More on authors: Nielsen & Cohen.
Etymology: Grammonus: Greek, gramma = signal, mark + Greek, onos = hake; thielei: Named for Werner Thiele, who photographed and caught the holotype.
Eponymy: Werner Thiele (d: 1966) is an Austrian self-taught underwater photographer. He was the first person to photograph and capture this species. (Ref. 128868), visit book page.
More on authors: Nielsen & Cohen.
Environment: milieu / climate zone / depth range / distribution range Ecology
Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Pacific: Sulawesi, Indonesia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 18.0 cm TL male/unsexed; (Ref. 56143); 15.0 cm TL (female)
Max length : 18.0 cm TL male/unsexed; (Ref. 56143); 15.0 cm TL (female)
Short description Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 66; Anal soft rays: 41. Diagnosis: Fin rays in dorsal 66; anal 41; pectoral 21. Vertebrae 11 + 27 (ural elements counted as 1). Head length 33% SL. One large lateral line pore (equal to posterior supraorbital pore) near angle of opercle. The caudal fin is free of the dorsal and anal fins (Ref. 56143).
Observed in limestone caves and sinkholes which are probably connected at depths between 2 and 30 meters; often in lightless chambers without current, few are found at the entrance of caves where they hide beneath rock ledges. No reaction to torchlight was shown and escape distance was only about 2 centimeters; mostly were seen motionless, with only a slight movement of the fins maintaining the fishes' position (Ref. 56143).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Main reference
Upload your references | References | Coordinator | Collaborators
Nielsen, J.G. and D.M. Cohen, 2004. Grammonus thielei (Ophidiiformes: Bythitidae) - a new bythitid cavefish from off Sulawesi, Indonesia. The Beagle 20:83-86. (Ref. 56143)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Data deficient (DD) ; Date assessed: 16 August 2019
CITES
Not Evaluated
Threat to humans
Harmless
Human uses
FAO - Publication: search | FishSource |
More information
Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators
Food items
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Ecology
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Anatomy
Gill area
Brain
Otolith
Gill area
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genetics
Heterozygosity
Heritability
Genetics
Heterozygosity
Heritability
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Tools
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Special reports
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Internet sources
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record
Estimates based on models
Phylogenetic diversity index (Ref. 82804): PD50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00172 - 0.01163), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).