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Hemigaleus microstoma Bleeker, 1852
Sicklefin weasel shark
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| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Hemigaleus microstoma AquaMaps Data sources: GBIF OBIS |
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Hemigaleus microstoma
Picture by Randall, J.E.
Pictures | Google image
Picture by Randall, J.E.
Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa
Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) > Carcharhiniformes (Ground sharks) > Hemigaleidae (Weasel sharks)
Etymology: Hemigaleus: hemi-, from hemisys (Gr.), half, referring to similarity to and/or close affinity with Galeus (now in Pentanchidae) (See ETYFish); microstoma: micro-, from mikros (Gr.), small; stoma (Gr.), mouth, referring to very short arched mouth compared with Chaenogaleus macrostoma, its presumed congener at the time (See ETYFish).
More on author: Bleeker.
Etymology: Hemigaleus: hemi-, from hemisys (Gr.), half, referring to similarity to and/or close affinity with Galeus (now in Pentanchidae) (See ETYFish); microstoma: micro-, from mikros (Gr.), small; stoma (Gr.), mouth, referring to very short arched mouth compared with Chaenogaleus macrostoma, its presumed congener at the time (See ETYFish).
More on author: Bleeker.
Issue
Specimens from Australia (and probably Papua New Guinea) are placed in Hemigaleus australiensis White, Last & Compagno, 2005 (Ref. 56150).
Environment: milieu / climate zone / depth range / distribution range Οικολογία
Θαλασσινό(ά) βενθικό(ς). Tropical; 22°C - 28°C (Ref. 244); 28°N - 30°S
Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri
Indo-West Pacific: southern India and Sri Lanka; China to Indonesia (Ref. 56150). Also from Red Sea (Ref. 93009).
Specimens found in Australia (and probably Papua New Guinea) belong to a separate species, Hemigaleus australiensis (Ref. 56150).
Length at first maturity / Μέγεθος / Βάρος / Age
Maturity: Lm ?, range 78 - ? cm
Max length : 135 cm TL αρσενικό/απροσδιόριστο; (Ref. 130455); μεγ. δημοσιευμένο βάρος: 14.0 kg (Ref. 130455)
Max length : 135 cm TL αρσενικό/απροσδιόριστο; (Ref. 130455); μεγ. δημοσιευμένο βάρος: 14.0 kg (Ref. 130455)
Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία
Ραχιαίες άκανθες (συνολικά) : 0; Εδρικές άκανθες: 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).
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).
Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Viviparous, with a yolk-sac placenta; 4 to 14 fetuses in a litter (Ref. 13567); 2-4 pups after a gestation period of about 6 months; born at about 45-47 cm TL (Ref. 58048). Size of full-term fetuses (detached umbilical cords and placentae) ranges from 23.7 to 25.6 cm (Ref. 244). Distinct pairing with embrace (Ref. 205).
Main reference
Upload your references | Αναφορές | Συντονιστής | Συνεργάτες
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Ευάλωτο, βλέπε Κόκκινη Λίστα (VU) (A2d); Date assessed: 06 November 2020
CITES
Not Evaluated
Threat to humans
Harmless (Ref. 13567)
Human uses
αλιεία: περιορισμένης εμπορικότητας
FAO - Publication: search | FishSource |
Περισσότερες πληροφορίες
Population dynamics
Παράμετροι Αύξησης
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Στρατολόγηση
Αφθονία
Παράμετροι Αύξησης
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Στρατολόγηση
Αφθονία
Life cycle
Αναπαραγωγή
Γεννητική Ωρίμανση
Maturity/Gills rel.
Γονιμότητα
Γεννοβολία
Spawning aggregations
Αβγά
Egg development
Προνύμφες
Δυναμική προνυμφών
Αναπαραγωγή
Γεννητική Ωρίμανση
Maturity/Gills rel.
Γονιμότητα
Γεννοβολία
Spawning aggregations
Αβγά
Egg development
Προνύμφες
Δυναμική προνυμφών
Physiology
Body composition
Nutrients
Κατανάλωση οξυγόνου
Κολυμβητικός τύπος
Ταχύτητα κολύμβησης
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Κατανάλωση οξυγόνου
Κολυμβητικός τύπος
Ταχύτητα κολύμβησης
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Γενετική
Heterozygosity
Κληρονομικότητα
Γενετική
Heterozygosity
Κληρονομικότητα
Human related
Aquaculture systems
Προφίλ υδατοκαλλιεργειών
Στελέχοι
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
Προφίλ υδατοκαλλιεργειών
Στελέχοι
Ciguatera cases
Stamps, coins, misc.
Εργαλεία
E-book | Οδηγός πεδίου | Κλείδες προσδιορισμού | Ανάλυση κατά μήκος συνθέσεων | Εργαλείο ιστορίας ζωής | Σημειακός χάρτης | Classification Tree
| Catch-MSY |
Special reports
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Διαδικτυακές πηγές
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Γένος, Είδη | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Εθνικές βάσεις δεδομένων | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Δέντρο Ζωής | Wikipedia: Go, αναζήτηση | World Records Freshwater Fishing | Zoobank | Zoological Record
Estimates based on models
Preferred temperature (Ref. 123201): 22.2 - 28.3, mean 27 °C (based on 816 cells).
Phylogenetic diversity index (Ref. 82804): PD50 = 0.7539 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00143 - 0.00767), b=3.05 (2.84 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278): 4.2 ±0.4 se; based on diet studies.
Ελαστικότητα (Ref. 120179): Πολύ χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού > 14 έτη (Fec=4).
Fishing Vulnerability (Ref. 59153): Very high vulnerability (81 of 100).
Nutrients (Ref. 124155): Calcium = 27.9 [4.5, 154.3] mg/100g; Iron = 0.693 [0.182, 2.119] mg/100g; Protein = 19 [17, 21] %; Omega3 = 0.114 [0.048, 0.271] g/100g; Selenium = 54.1 [16.0, 167.0] μg/100g; VitaminA = 22.3 [7.2, 70.4] μg/100g; Zinc = 0.769 [0.374, 1.395] mg/100g (wet weight);