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Triakis semifasciata Girard, 1855

Leopard shark
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Triakis semifasciata
Picture by Moreau, J.


Mexico country information

Common names: Tiburón leopardo, Tiburón leopardo
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: minor commercial | Ref: De la Cruz Agüero, J., M. Arellano Martínez, V.M. Cota Gómez and G. de la Cruz-Agüero, 1997
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: May be found along western coast of Baja California and throughout the Gulf of California (Ref. 9253). Also from Mazatlan (Ref. 96339). Recorded from several localities in Baja California Sur (Ref. 37955). Catches are little-known, but presumably occur (Ref. 244).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mx.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database:

Common names from other countries

Classification / Names ຊື່ສາມັນ | ຄຳສັບຄ້າຍຄືກັນ | Catalog of Fishes(ຕະກຸນ, ຊະນິດ) | ITIS | CoL | WoRMS | Cloffa

ກຸ່ມປາກະດູກອ່ອນ (ເຊັ່ນ: ປາສະຫລາມ, ປາຜາໄລ) (sharks and rays) > Carcharhiniformes (Ground sharks) > Triakidae (Houndsharks) > Triakinae
Etymology: Triakis: tri-, from tres (L.), three; akis (Gr.), point, referring to each tooth consisting of one large central cusp flanked on by both sides by a small cusplet. (See ETYFish);  semifasciata: semi-, from semis (L.), half; fasciatus (L.), banded, referring to striking black saddle marks that cover only dorsal half of body. (See ETYFish).
  More on author: Girard.

Environment: milieu / climate zone / depth range / distribution range ນິເວດວິທະຍາ

ສັດທະເລ; ນ້ຳກ່ອຍ ອາໄສຢູ່ໃກ້ໜ້າດິນໃຕ້ພື້ນທ້ອງນ້ຳ; ລະດັບຄວາມເລິກ 0 - 156 m (Ref. 96339), usually ? - 6 m (Ref. 55312).   Subtropical; 45°N - 19°N, 126°W - 105°W (Ref. 55312)

ການແຜ່ກະຈາຍ ປະເທດ | ເຂດ FAO | ລະບົບນິເວດ | ການປະກົດຕົວ | Point map | ການແນະນຳ | Faunafri

Eastern Pacific: Oregon, USA to the Gulf of California.

Length at first maturity / ຂະໜາດ / ນ້ຳໜັກ / Age

Maturity: Lm 109.8, range 100 - 129 cm
Max length : 198 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 244); 180.0 cm TL (female); common length : 160 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. ); ນ້ຳໜັກສູງສຸດທີ່ເຄຍຈັດພີມມາ: 18.4 kg (Ref. 40637); ອາຍຸສູງສຸດທີ່ເຄຍລາຍງານມາ: 30 ປີ (Ref. 6145)

ຊີວະສາດ     ຄຳແປສັບ (ຕ.ຢ. epibenthic)

Found in shallow water from the intertidal to deeper waters, most commonly in enclosed muddy bays; including estuaries and lagoons (S. Wilson, pers. comm.). Prefer sandy areas, mud flats, and bottoms strewn with rocks near rocky reefs and kelp beds. Feed mainly on crabs, shrimps, bony fish, fish eggs, clam necks and innkeeper worms among a large variety of food in its diet. Form mixed schools. Ovoviviparous (aplacental), with 4 to 29 young in a litter. Utilized fresh or frozen for human consumption.

Life cycle and mating behavior ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ

Females produce 6-24 young, which are 20-23 cm long at birth (Ref. 43439). Ovoviviparous, embryos feed solely on yolk (Ref. 50449).

Main reference Upload your references | ເອກະສານອ້າງອີງ | ຜູ້ປະສານງານ : Compagno, Leonard J.V. | ຜູ້ຮ່ວມມື

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)

  Least Concern (LC) ; Date assessed: 18 December 2014

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

ການປະມົງ: ເປັນສີນຄ້າ; ຊະນິດປາທີ່ຖືກນຳໃຊ້ເຂົ້າໃນການຫາເພື່ອເປັນເກມກິລາ: ແມ່ນ; ຕູ້ປາ: ເປັນສີນຄ້າ

ຂໍ້ມູນຕື່ມອີກ

ຊື່ສາມັນ
ຄຳສັບຄ້າຍຄືກັນ
ການເຜົາໃໝ້ພະລັງງານໂດຍປ່ຽນທາດອາຫານໃນຮ່າງກາຍໃຫ້ກາຍເປັນຊີ້ນແລະໜັງ
ຜູ້ລ້າ
ການສຶກສາຜົນກະທົບຂອງສານຜິດທີ່ມີຜົນກະທົບຕໍ່ລະບົບນິເວດ
ການສືບພັນ
ການຈະເລີນເຕັມໄວ
ການວາງໄຂ່
ຄວາມດົກຂອງໄຂ່ປາ
ໄຂ່
Egg development
Age/Size
ການເຕີບໃຫຍ່
Length-weight
Length-length
Length-frequencies
ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…
ສະລີລະວິທະຍາ
ຕົວອ່ອນ
ການປ່ຽນແປງຂອງຕົວອ່ອນ
ການທົດແທນທີ່
ຄວາມອຸດົມສົມບູນ
ເອກະສານອ້າງອີງ
ການລ້ຽງສັດນ້ຳ
ຂໍ້ມູນການລ້ຽງສັດນ້ຳ
ສາຍພັນ
ກຳມະພັນ
Electrophoreses
ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ
ພະຍາດ
ການປຸງແຕ່ງ
Mass conversion
ຜູ້ຮ່ວມມື
ຮູບ
Stamps, Coins Misc.
ສຽງ
ຫອຍມີພິດຊະນິດນຶ່ງທີ່ອາໄສໃນທະເລ
ຄວາມໄວ
ປະເພດການລອຍ
ເນື້ອທີ່ເຫືອກ
Otoliths
ສະໝອງ
ວິໄສທັດ

ເຄື່ອງມື

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ແຫຼ່ງອີນເຕີເນັດ

Estimates based on models

Preferred temperature (Ref. 115969): 12.8 - 24, mean 20.4 (based on 131 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00229 (0.00119 - 0.00443), b=3.13 (2.97 - 3.29), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
ຊັ້ນເຂດຮ້ອນ (Ref. 69278):  3.7   ±0.2 se; based on diet studies.
ຄວາມຢືດຢຸ່ນ (Ref. 120179):  ຕຳ່ຫຼາຍ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າຫຼາຍກວ່າ 14 ປີ (K=0.07-0.09; tm=11-21; tmax=30; Fec=4-12).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (80 of 100).
Price category (Ref. 80766):   High.