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Teleostei (teleosts) > Beloniformes (Needle fishes) > Zenarchopteridae (Internally fertilized halfbeaks)
Etymology: Nomorhamphus: Greek, nema = filament + Greek, rhamphos = bill, peak (Ref. 45335); rossi: Named for Charles ‘Andy’ Ross, herpetologist, who collected all the specimens of this species.
Eponymy: Charles Andrew ‘Andy’ Ross (1953–2011) was a herpetologist and palaeontologist at the Department of Vertebrate Zoology, the Smithsonian, where he was a specialist on crocodilians. [...] (Ref. 128868), visit book page.

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

Freshwater; pelagic. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: Philippines.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.7 cm SL male/unsexed; (Ref. 44897); 10.0 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 10 - 12; Anal soft rays: 14 - 17; Vertebrae: 39 - 41. This species is distinguished by the following characters: the second anal-fin ray in males in which segment five is greatly elongate, comprising one half of the ray; spiculus is thick, unsegmented distally; it is offset dorsally at about one fourth its length, with distal tip pointed ventrally (Ref. 44897).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Meisner, A.D., 2001. Phylogenetic systematics of the viviparous halfbeak genera Dermogenys and Nomorhamphus (Teleostei: Hemiramphidae: Zenarchopterinae). Zool. J. Linn. Soc. 133:199-283. (Ref. 44897)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Endangered (EN) (B1ab(iii)); Date assessed: 27 March 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
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Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
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Eggs
Egg development
Larvae
Larval dynamics

Distribution
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Anatomy
Gill area
Brain
Otolith

Physiology
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Oxygen consumption
Swimming type
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Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00457 (0.00200 - 0.01044), b=3.03 (2.82 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Nomorhamphus rossi Meisner, 2001