Diagnostic Description
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Grey or yellow-grey above, lighter below; no conspicuous markings (Ref. 9997).
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- Cristina V. Garilao
Life Cycle
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Viviparous, placental (Ref. 50449), with 4 to 8 young per litter (Ref. 244). Gestation period of ~ 8 months (Ref.58048). Size at birth between 40 and 60 cm (Ref. 244). Distinct pairing with embrace (Ref. 205).
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Migration
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Amphidromous. Refers to fishes that regularly migrate between freshwater and the sea (in both directions), but not for the purpose of breeding, as in anadromous and catadromous species. Sub-division of diadromous. Migrations should be cyclical and predictable and cover more than 100 km.Characteristic elements in amphidromy are: reproduction in fresh water, passage to sea by newly hatched larvae, a period of feeding and growing at sea usually a few months long, return to fresh water of well-grown juveniles, a further period of feeding and growing in fresh water, followed by reproduction there (Ref. 82692).
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- Kent E. Carpenter
Morphology
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Dorsal spines (total): 0; Dorsal soft rays (total): 0; Analspines: 0; Analsoft rays: 0
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Trophic Strategy
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A little-known shark found in coastal, inshore waters. Probably feeds on small fishes and invertebrates.
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- Drina Sta. Iglesia
Biology
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A little-known shark found in coastal, inshore waters (Ref. 244). Probably feeds on small fishes and invertebrates (Ref. 9997). Viviparous (Ref. 50449). Not known to be dangerous to people (Ref. 244). Meat utilized fresh and dried salted for human consumption, liver for oil (Ref.244). Caught irregularly by inshore gillnet fisheries, particularly those operating off Borneo (Ref.58048).
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Importance
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fisheries: commercial
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