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Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Trichogeninae
Etymology: Trichogenes: Greek, thrix = hair + Greek, genes, genesis = birth, race (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
ນິເວດວິທະຍາ
; ນ້ຳຈືດ ອາໄສຢູ່ໃກ້ໜ້າດິນໃຕ້ພື້ນທ້ອງນ້ຳ. Tropical; 20°C - 24°C (Ref. 13614)
South America: coastal streams between Rio de Janeiro and São Paulo States, Southeastern Brazil. Due to restricted distribution, specialized habitat, and differentiated populations, the vulnerable (VU B1+2bc) status in the IUCN List is proposed (Ref. 50917).
ຂະໜາດ / ນ້ຳໜັກ / Age
Maturity: Lm ? range ? - ? cm
Max length : 14.0 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 50917); 10.6 cm SL (female)
Found in streams in the Atlantic forest; backwaters with no flow to 0.44 meter per second water flow. Dwells mostly in pools beneath small waterfalls in steep hill streams flowing over rocky and sandy substrates. Density varies from 3 to 25 individuals per square meter. At densities of 18 to 25 individuals per square meter, fish aggregates in loose groups of up to 30 individuals; largest ones tend to be solitary and territorial. Nektonic, active both during daytime and at night; juveniles and small adults of up to 9 cm TL are more active at daytime, whereas larger ones are active mostly at night. Uses visual, tactile, and chemo-sensory orientation to feed on bottom-dwelling aquatic and terrestrial arthropods in the water column or on the surface. Diet includes immature aquatic insects, crustaceans, adult terrestrial winged insects whole or fragmented, as well as carrion. Forages mostly by scanning the bottom, the barbels touching the substrate, but visual oriented drift feeding is also employed by individuals up to 5 cm TL. While foraging may bury into sand or plant debris and sifts through opercular openings and mouth. Reproduces at the onset of rainy season (austral summer). Mature oocytes about 0.2 cm diameter; pterigyolarvae range 1-1.5 cm TL. Spotted color pattern differs consistently between stream populations, an indication of genetic differentiation (Ref. 50917).
Life cycle and mating behavior
ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ
Burgess, W.E., 1989. An atlas of freshwater and marine catfishes. A preliminary survey of the Siluriformes. T.F.H. Publications, Inc., Neptune City, New Jersey (USA). 784 p. (Ref. 6868)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
ການປະມົງ: ການປະມົງແບບກຸ້ມຕົນເອງ
ຂໍ້ມູນຕື່ມອີກ
ຊື່ສາມັນຄຳສັບຄ້າຍຄືກັນການເຜົາໃໝ້ພະລັງງານໂດຍປ່ຽນທາດອາຫານໃນຮ່າງກາຍໃຫ້ກາຍເປັນຊີ້ນແລະໜັງຜູ້ລ້າການສຶກສາຜົນກະທົບຂອງສານຜິດທີ່ມີຜົນກະທົບຕໍ່ລະບົບນິເວດການສືບພັນການຈະເລີນເຕັມໄວການວາງໄຂ່ການສັງລວມການວາງໄຂ່ຄວາມດົກຂອງໄຂ່ປາໄຂ່Egg development
Age/Size
ການເຕີບໃຫຍ່
Length-weight
Length-length
Length-frequencies
ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…
ສະລີລະວິທະຍາ
ຕົວອ່ອນ
ການປ່ຽນແປງຂອງຕົວອ່ອນ
ການທົດແທນທີ່
ຄວາມອຸດົມສົມບູນ
BRUVS
ເອກະສານອ້າງອີງການລ້ຽງສັດນ້ຳຂໍ້ມູນການລ້ຽງສັດນ້ຳສາຍພັນກຳມະພັນElectrophoresesການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກພະຍາດການປຸງແຕ່ງNutrientsMass conversion
ຜູ້ຮ່ວມມືຮູບStamps, Coins Misc.ສຽງຫອຍມີພິດຊະນິດນຶ່ງທີ່ອາໄສໃນທະເລຄວາມໄວປະເພດການລອຍເນື້ອທີ່ເຫືອກOtolithsສະໝອງວິໄສທັດ
ເຄື່ອງມື
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ແຫຼ່ງອີນເຕີເນັດ
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
ຊັ້ນເຂດຮ້ອນ (Ref.
69278): 3.4 ±0.46 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
