Alestes inferus : fisheries

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Alestes inferus Stiassny, Schelly & Mamonekene, 2009

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drawing shows typical species in Alestidae.

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

> Characiformes (Characins) > Alestidae (African tetras)
Etymology: Alestes: Greek, alestes, -oy = miller (Ref. 45335);  inferus: The name inferus, from the Latin, means below, lower, southern; it is named in reference to the occurrence of the species below a series of rapids on the lower Congo River, in a south bank tributary (Ref. 80450).

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

; ນ້ຳຈືດ ກ່ຽວກັບ (ຢູ່) ໄກ້ໜ້ານ້ຳໃນທະເລເປີດ. Tropical; 5°S - 6°S, 13°E - 14°E

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

Africa: known only from the lower Mpozo River, near its confluence with the mainstream lower Congo River, in Democratic Republic of the Congo (Ref. 80450).

ຂະໜາດ / ນ້ຳໜັກ / Age

Maturity: Lm ?  range ? - ? cm
Max length : 9.4 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 80450)

Short description ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…

ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ): 0; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ): 10; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ ກຸ່ມປາກະດູກແຂງ ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ ຄີກົ້ນຂອງປາ ສັດທີ່ມີກະດູກສັນຫັຼງ ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ 0; ຄີກົ້ນຂອງປາ: 19 - 21; ສັດທີ່ມີກະດູກສັນຫຼັງ: 39 - 40. Diagnosis: Alestes inferus is distinguished from all congeners by the possession of fewer pored scales along the lateral line (31-33 vs 36-51) and fewer vertebrae (39-40 versus 41-49) (Ref. 80450). It is further differentiated from A. dentex, A. baremoze and A. stuhlmanni in the possession of fewer gill rakers along the lower limb of the first arch (15-17 versus 23-58) (Ref. 80450). Dorsal fin with 2 unbranched and 8 branched rays; anal fin with 3 unbranched and 16-18 branched rays; origin of dorsal fin at, or slightly in front of, vertical through pelvic-fin origin (Ref. 80450). Lateral-line scales with bifurcating external canal in region proximate to overlap with following scale, each bifurcation terminating in a small pore (Ref. 80450). Description: Coloration: In alcohol base body coloration yellowish brown dorsally, pale cream ventrally; a darkly pigmented, deep-lying stripe extends from dorsoposterior margin of opercle to base of caudal peduncle, not extending over caudal fin; trace of a band of dark melanophores present above anal fin (Ref. 80450). Pectoral and pelvic fins creamy white; adipose fin dusky gray with a narrow marginal band of darker pigment; dorsal fin somewhat dusky proximally with yellow-orange band mid-dorsally, dusky gray proximally; anal fin pale proximally becoming darker along distal margin; caudal fin dusky gray with yellow-orange patch posteriorly on dorsal and ventral lobes, distal margin dark gray (Ref. 80450). In life with blue-green iridescence dorsally and dorsolaterally, silvery-white laterally and ventrally; no trace of midlateral band or of melanophores above anal fin (Ref. 80450). Pectoral and pelvic fins pale yellowish hyaline; dorsal fin hyaline proximally, orange distally; adipose pale dusky gray with a narrow darker gray distal margin; anal fin pale dusky gray; caudal fin pale dusky gray, orange banding along the posterodorsal and posteroventral lobes, and with a narrow, dark gray distal margin (Ref. 80450).

ຊີວະສາດ     ຄຳແປສັບ (ຕ.ຢ. epibenthic)

Collected in shallow water and in deeper pools alongside emergent grasses at the riverbank over a substrate dominated by large rocks and rock rubble (Ref. 80450).

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

Main reference Upload your references | ເອກະສານອ້າງອີງ | ຜູ້ປະສານງານ | ຜູ້ຮ່ວມມື

Stiassny, M.L.J., R.C. Schelly and V. Mamonekene, 2009. A new Alestes (Characiformes, Alestidae) from the Mpozo River in the Democratic Republic of Congo. Copeia 2009(1):110-116. (Ref. 80450)

IUCN Red List Status (Ref. 130435)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00528 - 0.02495), b=3.00 (2.82 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
ຊັ້ນເຂດຮ້ອນ (Ref. 69278):  3.0   ±0.4 se; based on size and trophs of closest relatives
ຄວາມຢືດຢຸ່ນ (Ref. 120179):  ສູງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງໜ້ອຍກວ່າ 15 ເດືອນ (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).