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Ovalentaria/misc (Various families in series Ovalentaria) >
Opistognathidae (Jawfishes)
Etymology: Opistognathus: Greek, opisthe = behind + Greek, gnathos = jaw (Ref. 45335); to the very elongate upper jaw of the type species of the genus, Opistognathus nigromarginatus (Ref. 128653).
Environment: milieu / climate zone / ລະດັບຄວາມເລິກ / distribution range
ນິເວດວິທະຍາ
ສັດທະເລ ກ່ຽວກັນຫີນ; ລະດັບຄວາມເລິກ 10 - 25 m (Ref. 129348). Tropical
Southwest Atlantic Ocean: Brazil.
ຂະໜາດ / ນ້ຳໜັກ / Age
ການຈະເລີນເຕັມໄວ: Lm ? range ? - ? cm
Max length : 4.7 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 129348)
Short description
ຕົວທີ່ໃຊ້ໃນການຈຳແນກຊະນິດ | ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…
ຄີ (ໜາມ)ແຂງຢູ່ຫຼັງປາ (ທັງໝົດ) : 11; ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ) : 14; ຄີ(ໜາມ) ແຂງຢູ່ຄີກົ້ນປາ
ກຸ່ມປາກະດູກແຂງ
ຄວາມຖີ່ຂອງກຸ່ມຖ່າຍທອດພັນ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລໄປຫານ້ຳຈືດ ແລະນ້ຳຈືດຫາທະເລ
ປາທີ່ມີການເຄື່ອນຍ້າຍຈາກທະເລແລະໄປໄຂ່ຢູ່ນ້ຳຈືດ
ຄີກົ້ນຂອງປາ
ສັດທີ່ມີກະດູກສັນຫັຼງ
ການຖ່າຍທອດທາງກຳມະພັນຈາກພໍ່ແມ່ຫາລູກ: 2 - 3; ຄີກົ້ນຂອງປາ: 12 - 13; ສັດທີ່ມີກະດູກສັນຫຼັງ: 27. This species is distinguished by the following set of characters: anterior nostril is a short tube with simple cirrus on posterior rim; maxilla rigid, not produced as a thin flexible lamina posteriorly; no supramaxilla; subopercle without a broad, fan-like flap; vomer no teeth; body with 43-47 oblique body scale rows in longitudinal series; vertebrae 10 + 17 = 27. Colouration: sides with two rows of pale spots, each approximately diameter of eye; body with six vertically irregular, evenly spaced bands, widest on mid-side, and two rows of six pale spots, each spot approximately diameter of eye; buccal area surrounding esophageal opening is pale. Also easily disinguished from its congeners by the divergence in the mitochondrial gene COI, as specimens form a monophyletic group that differs from its closest relative (O. whitehursti) by an
average of 11% (654 bp analyzed) (Ref. 129348).
Cross section: oval.
This species is common in coastal regions, in depths associated with gravel-sand bottoms, near coral reefs and rocky areas. Feeds mainly on small benthic organisms near the bottom (e.g., small shrimps, crabs, and isopods) (Ref. 129348).
Life cycle and mating behavior
ການຈະເລີນເຕັມໄວ | ການສືບພັນ | ການວາງໄຂ່ | ໄຂ່ | ຄວາມດົກຂອງໄຂ່ປາ | ຕົວອ່ອນ
Smith-Vaniz, W.F,, L. Tornabene and R.M. Macieira, 2018. Review of Brazilian jawfishes of the genus Opistognathus with descriptions of two new species (Teleostei, Opistognathidae). ZooKeys No. 794: 95-133. (Ref. 129348)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
ເຄື່ອງມື
Special reports
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ແຫຼ່ງອີນເຕີເນັດ
Estimates based on models
Phylogenetic diversity index (ເອກະສານອ້າງອີງ
82804): PD
50 = 0.5000 [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 (ເອກະສານອ້າງອີງ
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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