Hemigaleus microstoma   Bleeker, 1852

Sicklefin weasel shark
Catalog of Fishes (gen., sp.) | ITIS | CoL
Classification
Elasmobranchii | Carcharhiniformes | Hemigaleidae
Synonyms
Common names
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| Native range | All suitable habitat | PointMap | Year 2050 |
Aquamaps of Hemigaleus microstoma This map was computer-generated and has not yet been reviewed.
AquaMaps     Data sources: GBIF OBIS
Main reference
Size / Weight / Age
Max length : 114 cm TL male/unsexed; (Ref. 58048)
Length at first maturity
, range 60 - 91 cm
Environment
Demersal; marine
Climate / Range
Tropical; 22°C - 28°C (Ref. 244); 28°N - 30°S
Distribution
Indo-West Pacific: southern India and Sri Lanka; China to Indonesia. Recent study confirmed that those found in Australia (and probably Papua New Guinea) is a separate species, Hemigaleus australiensis (Ref. 56150).
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Short description
Dorsal spines (total): 0; Anal spines: 0. Australian specimens with dark-tipped fins; tooth counts 28-34/43-54; total vertebral counts 111 to 118 (Ref. 13567). Indonesian, Singapore and Thailand specimens with light-tipped fins; tooth counts 25-32/37-43; total vertebral counts 137 to 150 (Ref. 13567). Grey-brown above, lighter below, dorsal fins with white tips and posterior margins, sometimes with spots on sides of body (Ref. 13567).
Biology
    Glossary (e.g. epibenthic)
A small, relatively common inshore and offshore shark of tropical continental seas (Ref. 13567). Feeds mainly on cephalopods, particularly octopi (Ref. 13567) but also takes crustaceans and cephalopods (Ref. 244). Viviparous (Ref. 50449). Taken regularly in inshore artisanal fisheries (Ref.244), commonly caught by inshore gillnet, bottom trawl and, to a lesser extent, longline fisheries. Utilized for human consumption (Ref. 244). Offal used for fishmeal (Ref. 244).
IUCN Red List Status (Ref. 57073)
Threat to humans
  Harmless (Ref. 13567)
Human uses
Fisheries: minor commercial
More information
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Morphology
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Internet sources
Estimation of some characteristics with mathematical models
Phylogenetic diversity index (Ref. 82805)
PD50 = 0.7539
Resilience (Ref. 69278)
Very Low, minimum population doubling time more than 14 years (Fec=4)
Vulnerability (Ref. 59153)
Price category (Ref. 80766)
Moderate to high vulnerability (50 of 100)

Entered by Carpenter, Kent E.
Modified by Wiethüchter, Anita