Classification / Names
ຊື່ສາມັນ | ຄຳສັບຄ້າຍຄືກັນ | Catalog of Fishes(ຕະກຸນ, ຊະນິດ) | ITIS | CoL | WoRMS | Cloffa
ກຸ່ມປາກະດູກອ່ອນ (ເຊັ່ນ: ປາສະຫລາມ, ປາຜາໄລ) (sharks and rays) >
Myliobatiformes (Stingrays) >
Potamotrygonidae (River stingrays) > Potamotrygoninae
Etymology: Potamotrygon: Greek, potamos = river + Greek, trygon = a sting ray (Ref. 45335).
More on author: Castelnau.
Issue
A widespread species that may require subdivision. Rosa (1985a) recognizes Potamotrygon dumerilli (Castelnau 1855) and Potamotrygon humerosus Garman 1913 as distinct species, but evidence given is meager. Larger specimens may weigh close to five kg. Reproductive biology studied by Lasso et al. (1997a) in Venezuela; males achieve sexual maturity at 23 cm DL and females at 18.5 cm DL, and females give birth to up to two pups during any time of year. Food consists of fishes, insects and crustaceans. Additional references: Bertin (1939), Sérét & McEachran (1986), Compagno & Cook (1995), Planquette et al. (1996).
Environment: milieu / climate zone / depth range / distribution range
ນິເວດວິທະຍາ
; ນ້ຳຈືດ ກ່ຽວກັບ (ຢູ່)ເທິງຊັ້ນພື້ນດິນໃນທະເລເປີດ; pH range: 6.8 - 7.5. Tropical; 24°C - 26°C (Ref. 12468)
South America: Widespread in Amazon and Orinoco River basins and in river systems in Suriname, Guyana and French Guiana.
ຂະໜາດ / ນ້ຳໜັກ / Age
Maturity: Lm ? range ? - ? cm
Max length : 35.0 cm WD ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 27749); 32.5 cm WD (female); ນ້ຳໜັກສູງສຸດທີ່ເຄຍຈັດພີມມາ: 1.4 kg (Ref. 27749); ນ້ຳໜັກສູງສຸດທີ່ເຄຍຈັດພີມມາ: 1.4 kg
Occurs in stream swamps, floodplain lakes and artificial lagoons. Feeds mainly on insects and benthic crustaceans (Ref. 27749).
Life cycle and mating behavior
ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ
Lasso, C.A., A. Rial B. and O. Lasso-Alcalá., 1997. Notes on the biology of the freshwater stingrays Paratrygon aiereba (Müller & Henle, 1841) and Potamotrygon orbignyi (Castelnau, 1855) (Chondrichthyes: Potamotrygonidae) in the Venezuelan Llanos. aqua, J. Ichthyol. Aquat. Biol. 2(3):39-52. (Ref. 27749)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
ຂໍ້ມູນຕື່ມອີກ
ຊື່ສາມັນຄຳສັບຄ້າຍຄືກັນການເຜົາໃໝ້ພະລັງງານໂດຍປ່ຽນທາດອາຫານໃນຮ່າງກາຍໃຫ້ກາຍເປັນຊີ້ນແລະໜັງຜູ້ລ້າການສຶກສາຜົນກະທົບຂອງສານຜິດທີ່ມີຜົນກະທົບຕໍ່ລະບົບນິເວດການສືບພັນການຈະເລີນເຕັມໄວການວາງໄຂ່ການສັງລວມການວາງໄຂ່ຄວາມດົກຂອງໄຂ່ປາໄຂ່Egg development
Age/Size
ການເຕີບໃຫຍ່
Length-weight
Length-length
Length-frequencies
ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…
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ຕົວອ່ອນ
ການປ່ຽນແປງຂອງຕົວອ່ອນ
ການທົດແທນທີ່
ຄວາມອຸດົມສົມບູນ
BRUVS
ເອກະສານອ້າງອີງການລ້ຽງສັດນ້ຳຂໍ້ມູນການລ້ຽງສັດນ້ຳສາຍພັນກຳມະພັນElectrophoresesການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກພະຍາດການປຸງແຕ່ງNutrientsMass conversion
ຜູ້ຮ່ວມມືຮູບStamps, Coins Misc.ສຽງຫອຍມີພິດຊະນິດນຶ່ງທີ່ອາໄສໃນທະເລຄວາມໄວປະເພດການລອຍເນື້ອທີ່ເຫືອກOtolithsສະໝອງວິໄສທັດ
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ແຫຼ່ງອີນເຕີເນັດ
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
ຊັ້ນເຂດຮ້ອນ (Ref.
69278): 3.2 ±0.43 se; based on food items.
ຄວາມຢືດຢຸ່ນ (Ref.
120179): ຕຳ່ຫຼາຍ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າຫຼາຍກວ່າ 14 ປີ (Assuming Fec <10).
Fishing Vulnerability (Ref.
59153): High vulnerability (58 of 100).
