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Hemitriakis indroyonoi White, Compagno & Dharmadi, 2009
Indonesian Houndshark
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drawing shows typical species in Triakidae.
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drawing shows typical species in Triakidae.
Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Galeorhininae
Etymology: Hemitriakis: hemi-, from hemisys (Gr.), half, being a genus that Herre believed was “most closely related” to Triakis (See ETYFish); indroyonoi: In honor of Indroyono Soesilo (b. 1955), geologist, engineer and Chairman, Marine and Fisheries Research Agency (Jakarta, Indonesia), “who has provided a great deal of support for shark research in Indonesia and was a strong advocate for the production of the field guide to sharks and rays of Indonesia” (See ETYFish).
Eponymy: Dr Dwisuryo Indroyono Soesilo (d: 1955) is an engineer and geologist. [...] (Ref. 128868), visit book page.
Etymology: Hemitriakis: hemi-, from hemisys (Gr.), half, being a genus that Herre believed was “most closely related” to Triakis (See ETYFish); indroyonoi: In honor of Indroyono Soesilo (b. 1955), geologist, engineer and Chairman, Marine and Fisheries Research Agency (Jakarta, Indonesia), “who has provided a great deal of support for shark research in Indonesia and was a strong advocate for the production of the field guide to sharks and rays of Indonesia” (See ETYFish).
Eponymy: Dr Dwisuryo Indroyono Soesilo (d: 1955) is an engineer and geologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range Ecology
Marine; demersal. Tropical; 9°N - 8°N, 115°E - 117°E
Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Length at first maturity / Size / Weight / Age
Presumably occurring on the outer continental shelf and upper slope. Females have litters of 6-11 where reproductive mode is viviparous, with histotrophy (no yolk-sac placenta); size at birth about 28- 30 cm TL (Ref. 80994).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Main reference
Upload your references | References | Coordinator : Compagno, Leonard J.V. | Collaborators
White, W.T., L.J.V. Compagno and Dharmadi, 2009. Hemitriakis indroyonoi sp. nov., a new species of houndshark from Indonesia (Carcharhiniformes: Triakidae). Zootaxa 2110:41-57. (Ref. 80994)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Endangered (EN) (A2d; B2ab(v)); Date assessed: 23 September 2020
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
E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree
| Catch-MSY |
Special reports
Download XML
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 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00185 - 0.00711), b=3.00 (2.82 - 3.18), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278): 4.3 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153): High to very high vulnerability (72 of 100).