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Blenniiformes (Blennies) >
Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Ruanoho: A vernacular name in maori, New Zealand.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển gần đáy; Mức độ sâu 0 - 6 m (Ref. 84086). Temperate
Southwest Pacific: around mainland New Zealand.
Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm TL con đực/không giới tính; (Ref. 84086)
Short description
Khóa để định loại | Hình thái học | Sinh trắc học
Các tia vây lưng cứng (tổng cộng) : 20 - 23; Các vây lưng mềm (tổng cộng) : 14 - 16; Tia cứng vây hậu môn: 2; Tia mềm vây hậu môn: 24 - 27. Males uniform grey to black with red fins and a bluish white margin to the anal fin during the breeding season. Females mottled greenish grey with an indistinct broken dark band along the base of the dorsal fins. Distinguished from other triplefins by the flattened pointed head and snout, the short, square caudal peduncle, and by having three spines in the first dorsal fin and 14-16 spines in the second.
Adults are commonly found in sheltered areas shallower than 5 m. Typical in shallow habitats in coastal mainland areas and seldom on offshore islands. Mainly found under rocks. They feed on a range of benthic invertebrates including ophiuroids, archaeogastropods, trichoptera and errant polychaetes (Ref. 84084). Eggs are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites (Ref. 240). Larvae are planktonic which occur primarily in shallow, nearshore waters (Ref. 94114). They are caught by slurp guns and handnets (Ref. 84086).
Life cycle and mating behavior
Maturities | Sự tái sinh sản | Spawnings | Egg(s) | Fecundities | Ấu trùng
Fricke, R., 1994. Tripterygiid fishes of Australia, New Zealand and the southwest Pacific Ocean (Teleostei). Theses Zool. 24:1-585. (Ref. 13227)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Các nghề cá: không ích lợi (thú vị)
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Estimates based on models
Preferred temperature (Ref.
123201): 10.6 - 21.2, mean 15.9 °C (based on 162 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00631 (0.00338 - 0.01176), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
