Hemirhamphodon sesamum

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Hemirhamphodon sesamum Tan & Lim, 2013

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No image available for this species;
drawing shows typical species in Zenarchopteridae.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Actinopteri > Beloniformes (Needle fishes) > Zenarchopteridae (Internally fertilized halfbeaks)
Etymology: Hemirhamphodon: Greek, hemi = half + Greek, rhamphos = bill + greek, odous = teeth (Ref. 45335);  sesamum: Name refers to the minute oily seeds of the Sesamum plant (Pedaliaceae), in allusion to the small black spots/dashes on the dorsal fi n with which resemble black sesame seeds. A noun in apposition..

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水 大洋性; 深度上下限 0 - ? m.

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Asia: Batulicin and Cantung basins in south Kalimantan, Indonesian Borneo.

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 4.7 cm SL 雄鱼/尚未辨别雌雄; (Ref. 94086)

简单描述 型态特徵 | 形态测量图

背的软条 (总数): 13-14; 臀鳍软条: 8; 脊椎骨: 38 - 41. Distinguished from all congeners in having the following characters: 1) Dorsal fin with melanophores in two distinct sizes. For males in life, first 6 to 7 rays distal one-third to half with yellow suffused throughout the rays and interradial membrane, with iridescent red margin; intense black pigments on the mid-section of interradial membrane between first 3 rays; red pigments on the mid-section of interradial membrane between 6 to 11 rays; rest of fin hyaline. For males in preservative, color pattern as above, but the iridescent red margin is absent. For females in life, first 6 to 7 rays suffused with pale yellow, with iridescent red margin; small patches of black pigments on the middle section of the interradial membrane of first 6 to 7 rays; rest of fin hyaline. For females in preservative, color pattern as above, but the iridescent red margin is absent. Black patches on anterior portion of dorsal fin present in specimens 20 mm SL or larger. 2) Unique dorsal fin morphology in the males - distal portions of first 6 to 7 rays elongated, free of interradial membrane, projected into filaments up to twice the depth of the dorsal fin; adpressed fin rays reaching caudal-fin base and beyond. 3) Unique coloration on lower jaw. For males in life , upper jaw with corresponding portion of lower jaw yellow; dorsal surface of exposed lower jaw bluish, dermal flange below middle section of lower jaw bright red with blue lower margin, tip of lower jaw to region below upper jaw red; dermal flange of lower jaw with distinct black ventral margin from tip to region directly below eye. Males in preservative, exhibit similar color pattern but colors are subdued or faded. Females in life have similar color pattern as male but colors are comparatively less intense. For females in preservative, the red band on the dermal flange of the lower jaw is replaced by yellow. 4) Males with the fourth anal-fin ray distinctly enlarged, and third, fourth and eighth anal-fin rays branched; females with third and fourth anal-fin rays branched. 5) Pelvic-fin origin anterior to dorsal-fin origin. 6) Dorsal-fin rays 13 or 14 (Ref. 94086).

生物学特性     字汇 (例如 epibenthic)


Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼


主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Tan, H.H. and K.K. Lim, 2013. Three new species of freshwater halfbreaks (Teleostei: Zenarchopteridae: Hemirhamphodon) from Borneo. The Raffles Bulletin of Zoology 61(2):735-747. (Ref. 94086)

世界自然保护联盟红皮书 (Ref. 125652)

  临近濒危 (NT) (B1b(iii)); Date assessed: 14 January 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

 





人类利用

FAO - Publication: search | FishSource |

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: 基因组, 核苷酸 | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | Zoobank | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00183 - 0.00997), b=3.02 (2.81 - 3.23), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245).
营养阶层 (Ref. 69278):  3.1   ±0.4 se; based on size and trophs of closest relatives
回复力
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .
Climate Vulnerability (Ref. 125649):   (0 of 100) .