Synodontis denticulatus : fisheries

Synodontis denticulatus Kasongo Ilunga, Abwe, Decru, Chocha Manda & Vreven 2020

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Synodontis denticulatus
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drawing shows typical fish in this Family.

Classification / Names ຊື່ສາມັນ | ຄຳສັບຄ້າຍຄືກັນ | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfish) > Mochokidae (Squeakers or upside-down catfishes)
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335);  denticulatus: The specific epithet, denticulatus, from the Latin denticulatus, meaning denticulate or with small teeth, a reference to the well-marked and quite numerous denticles on the posterior margin of dorsal spine of this species (Ref. 122878).

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

; ນ້ຳຈືດ ກ່ຽວກັບ (ຢູ່)ເທິງຊັ້ນພື້ນດິນໃນທະເລເປີດ; pH range: 7.1 - 8.3.   Tropical; 23°C - 30°C (Ref. 122878)

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

Africa: Lufira River, Congo River basin, in Democratic Republic of the Congo (Ref. 122878).

ຂະໜາດ / ນ້ຳໜັກ / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.9 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 122878)

Short description ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…

ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ): 2; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ): 7-8; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ ກຸ່ມປາກະດູກແຂງ ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ ຄີກົ້ນຂອງປາ ສັດທີ່ມີກະດູກສັນຫັຼງ ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ 3-4; ຄີກົ້ນຂອງປາ: 7 - 9. Diagnosis: Synodontis denticulatus differs from its upper Lualaba and Bangweulu-Mweru congeners by the following unique combination of characters: anterior margin of pectoral spine serrated, vs. not serrated in S. pleurops; humeral process triangular and clearly pointed posteriorly, vs. not triangular and instead clearly truncated or rounded posteriorly in S. congicus, S. notatus and S. smiti; high number of mandibular teeth, 30-58 vs. lower, 0-10 in S. decorus, 18-25 in S. katangae, 23-27 in S. lufirae and 13-24 in S. polystigma; short adipose-fin length, 17.8-26.2% of standard length, vs. long, 32.3-37.1% in S. acanthomias, 30.2-36.2% in S. alberti, 32.7-42.9% in S. dorsomaculatus and 27.3-32.6% in S. nigromaculatus; and a non-villous skin on flanks vs. villous skin in S. greshoffi and S. unicolor, short maxillary barbels, 77.6-123.3% of head length vs. usually longer, 108-195% in S. greshoffi and 83.6-165.3% in S. unicolor, a low number of short serrations on anterior margin of pectoral spine, 8-14, vs. high number of long serrations, 9-23 in S. greshoffi and 11-20 in S. unicolor, and a high number of serrations on posterior margin of dorsal spine, 7-15, vs. a low number of serrations on posterior margin of dorsal spine, 2-15 in S. greshoffi and 5-11 in S. unicolor (Ref. 122878). Furthermore, Synodontis denticulatus differs from the remaining of its Congo Basin congeners, including those from Lake Tanganyika basin and associated river systems, by the following unique combination of characters: dorsal spine without strong serration on its anterior margin vs. with strong serrations in S. batesii and S. longispinis; dorsal spine with strong serration on its posterior margin vs. no serrations in S. nigriventris; humeral process triangular and clearly pointed posteriorly vs. triangular but instead with a clearly blunted point posteriorly in S. dhonti, not triangular and instead clearly truncated posteriorly in S. robertsi; high number of mandibular teeth, 30-58, vs. low, 14-18 in S. brichardi, 20 in S. camelopardalis, 20-27 in S. flavitaeniatus, 15-29 in S. irsacae, 19-30 in S. longirostris, 14-24 in S. multipunctatus, 12-19 in S. nummifer, 18-23 in S. pardalis, 17-28 in S. schoutedeni, 17-26 in S. grandiops, 13-19 in S. ornatissimus and 10 in S. vaillanti; short adipose-fin length, 17.8-26.2% of standard length, vs. long, 30.7-34.8% in S. caudalis, 28.2-31.4% in S. cuangoanus, 35.4-37.1% in S. depauwi, 29.4-33.7% in S. iturii, 31.6% in S. multimaculatus, 33.2-40.0% in S. petricola, 29.2-45.6% in S. polli, 29.7-34.1% in S. soloni, 28.2-33.3% in S. victoriae, 31.2-44.8% in S. ilebrevis, 27.6-38.7% in S. lucipinnis and 28.0-33.4% in S. macropunctatus; non-villous skin on the flanks vs. villous skin in S. afrofischeri; its unique body colouration characterised by dark brown or black, dark-grey, spots and marbling on a yellowish, light brown, background vs. body with brownish to black background with small, light brown spots and sometimes with vertical sinusoid bars as well in S. angelicus, body dark brown to blackish covered with lighter vermiculations in S. aterrimus, body with distinct, large, dark brown, black spots on a lighter coloured network in S. centralis, uniformly brownish body, or with small, black spots on upper and lower part of flanks in juveniles in S. granulosus, body greyish to cuprous brown in colour with numerous small black spots, sometimes confluent in S. melanostictus, uniform brownish body colouration with or without numerous, small, black spots in S. nigrita, body with six vertical dark brown bars in juveniles modified more or less into two series of, unequally sized, dark brown spots in S. ornatipinnis, body with a few, large, rounded, back spots only in S. pulcher, yellowish or beige to whitish coloured body covered with large, dark brown spots in juveniles, becoming uniformly greyish with size in S. rukwaensis, and body with a uniform greyish background colour with or without numerous small black spots in S. tanganyicae and S. zambezensis; and long maxillary barbels, 77.6-123.3% of head length, vs. shorter, 50.5-75.8% in S. contractus (Ref. 122878). Finally, Synodontis denticulatus differs from its congeners from southern Africa by the following unique combination of characters: a high number of mandibular teeth, 30-58, vs. low, 12-22 in S. leopardinus, 18-27 in S. macrostigma, 13-21 in S. macrostoma, 12-24 in S. nebulosus, 17-28 in S. thamalakanensis, and 14-24 in S. woosnami; a short adipose-fin length, 17.8-26.2% of standard length, vs. long, 27.3-32.6% in S. nigromaculatus; and its unique body colouration characterised by dark brown spots and marbling on a yellowish, light brown, background vs. dark brown to black, eye-sized, markings, usually spot or bars merging into a maze-like network, on a light brown to olive brown background in S. vanderwaali, and a uniform greyish background colour with or without numerous small black spots in S. zambezensis (Ref. 122878).

ຊີວະສາດ     ຄຳແປສັບ (ຕ.ຢ. epibenthic)

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

Main reference Upload your references | ເອກະສານອ້າງອີງ | ຜູ້ປະສານງານ | ຜູ້ຮ່ວມມື

Kasongo Ilunga, M.: Abwe, E., E. Decru, A. Chocha Manda and E. Vreven, 2020. Description of a new small-sized Synodontis species (Siluriformes: Mochokidae) that is important for local subsistence fisheries in the middle Lufira (upper Congo River, DR Congo). J. Fish Biol. 96(5):1142-1159. (Ref. 122878)

IUCN Red List Status (Ref. 123251)


CITES (Ref. 123416)

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. 82805):  PD50 = No PD50 data   [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):  2.9   ±0.4 se; based on size and trophs of closest relatives
ຄວາມຢືດຢຸ່ນ (Ref. 120179):  ສູງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງໜ້ອຍກວ່າ 15 ເດືອນ (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .