Gobionellus occidentalis, Delta goby : fisheries

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Gobionellus occidentalis (Boulenger, 1909)

Delta goby
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Gobionellus occidentalis   AquaMaps   Data sources: GBIF OBIS
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drawing shows typical species in Gobiidae.

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

> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobionellinae
Etymology: Gobionellus: Diminutive of Latin, gobius = gudgeon (Ref. 45335).
More on author: Boulenger.

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

ສັດທະເລ; ນ້ຳຈືດ; ນ້ຳກ່ອຍ ອາໄສຢູ່ໃກ້ໜ້າດິນໃຕ້ພື້ນທ້ອງນ້ຳ; ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ. Tropical; 17°N - 11°S, 17°W - 29°E

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

Eastern Atlantic: southern Senegal and Guinea-Bissau (Ref. 57403) to Republic of Congo and possibly to Angola (Ref. 79590). Reportedle present in the Chiloango in Cabinda (Angola) (Ref. 120641). Also collected from mangroves at Bula Bemba (lower Congo River) and from Banana (lower Congo River estuary) in Democratic Republic of the Congo (Ref. 12818).

ຂະໜາດ / ນ້ຳໜັກ / Age

Maturity: Lm ?  range ? - ? cm
Max length : 13.3 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 79590)

Short description ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…

ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ): 7; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ): 12-13; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ ກຸ່ມປາກະດູກແຂງ ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ ຄີກົ້ນຂອງປາ ສັດທີ່ມີກະດູກສັນຫັຼງ ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ 1; ຄີກົ້ນຂອງປາ: 12 - 14. Diagnosis: head and body strongly compressed; several rows of fine teeth in upper and lower jaw (Ref. 57403, 79590). Angle of mouth located below center or hind margin of eye (Ref. 57403). Interobital space 27-37% of eye diameter; 17-23 (perhaps up to 26) predorsal scales extending anteriorly to level of preoperculum or just behind eye; upper part of operculum scaled; about 57-69 scales in longitudinal series (54-66 on body and 3-5 scales on caudal fin base); 15-21 scales in rearward transverse series; 1st dorsal fin: VI; second dorsal fin: I,13 (rarely 12); anal fin: I,12-13 (perhaps 14); pectoral fins: 17-20; caudal fin lanceolate, its length about 40% of standard length, with 17 segmented rays, 15 of which are branched (Ref. 57403, 79590). Coloration: Preserved specimens: head and body generally pale or yellowish with indistinct pigmentation except for a dark triangular patch on operculum and a basicaudal spot; a faint large oval spot below 1st dorsal fin beneath pectoral fin rays often visible; anterior margin of 1st dorsal fin spine with 2-4 black spots; flanks pale with several diffuse dark areas along midline (Ref. 57403, 79590).

ຊີວະສາດ     ຄຳແປສັບ (ຕ.ຢ. epibenthic)

Occur inshore, over sand (Ref. 4343, 5299). Marine species also found in brackish waters (Ref. 57403, 79590), including lagoons (Ref. 57403, 79590) and estuaries (Ref. 4343, 5299, 57403, 79590) and in the lower course of streams (Ref. 4343, 5299). Adults may occupy subtidal burrows (Ref. 79590). Maximum reported total length 19.6 cm (Ref. 57403).

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

Main reference Upload your references | ເອກະສານອ້າງອີງ | ຜູ້ປະສານງານ | ຜູ້ຮ່ວມມື

Harrison, I.J., P.J. Miller and F. Pezold, 2003. Gobiidae. p. 625-666 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57403)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 01 May 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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Estimates based on models

Preferred temperature (Ref. 123201): 24.4 - 28, mean 26.6 °C (based on 60 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00349 - 0.02862), b=3.09 (2.85 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
ຊັ້ນເຂດຮ້ອນ (Ref. 69278):  3.5   ±0.5 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).
Price category (Ref. 80766):   Very high.