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> Osmeriformes (Freshwater smelts) > Retropinnidae (New Zealand smelts) > Prototroctinae
Etymology: Prototroctes: Greek, pro = first, in front of + Greek, troktos, -e, -on = edible (Ref. 45335).
More on author: Günther.

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

laut; air tawar; payau dasar (demersal); amphidromus (Ref. 46888). Temperate; 10°C - 25°C (Ref. 2060); 34°S - 45°S

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | Point map | Introduksi | Faunafri

Oceania: coastal drainages of southeastern Australia from the Grose River near Sydney southward and westward to the eastern part of South Australia, including Tasmania and King Island in Bass Strait.

Size / Weight / umur

Maturity: L_m ? range ? - ? cm
Max length : 33.0 cm TL jantan/; (Ref. 5259); common length : 18.0 cm TL jantan/; (Ref. 5259); Umur maksimum dilaporkan: 6 Tahun (Ref. 5259)

Adults inhabit creeks and rivers, usually in cool, clear waters over gravel bottoms in sections alternating between pools and rapids. Usually found in clear, moderate to fast-flowing water in the upper reaches of rivers (sometimes to altitudes above 1000 meters). Often forming aggregations below barriers to upstream movement. Timid species that forms fast-moving shoals (Ref. 44894). Often form large schools especially prior to spawning. Feed on small crustaceans, insects and their larvae and algae. The intestinal tract is long, s specialization to assist in the breakdown of ingested plant material (Ref. 44894). Spawn: Feb.-May; 25,000-68,000 eggs which sink to bottom downstream of spawning site. Hatching: 10-20 days; larvae, 6-7 mm TL, swept downstream to estuaries and the sea, return to freshwater after 6 months.

Life cycle and mating behavior Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva

rujukan utama Upload your references | Acuan | Koordinator : McDowall, Robert M. | mitra

Allen, G.R., 1989. Freshwater fishes of Australia. T.F.H. Publications, Inc., Neptune City, New Jersey. (Ref. 5259)

Status IUCN Red List (Ref. 130435)

Rentan, lihat daftar merah IUCN (VU) (B2b(i,ii,iii,iv,v)c(iv)); Date assessed: 12 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

Harmless

penggunaan manusia

Perikanan: komersial; Ikan buruan: ya

FAO - Publication: search | FishSource |

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Sumber internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7656 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00372 (0.00150 - 0.00920), b=3.14 (2.92 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.8 ±0.34 se; based on food items.

Daya lenting (Ref. 120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (K=0.45; tmax=6; Fec=25,000).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (29 of 100).

kategori harga (Ref. 80766): Unknown.

Prototroctes maraena Günther, 1864