Environment: milieu / climate zone / depth range / distribution range
экология
; пресноводный демерсальный; немигрирующий; пределы глубины 0 - 12 m. Tropical; 14°N - 13°N
Asia: found only in the Philippines in Lakes Buhi, Bato, Katugday and Manapao in Camarines Sur Province and along the Bicol River system. Threatened due to overfishing and predation by introduced fish species.
Length at first maturity / Size / Вес / Возраст
Maturity: Lm 1.0, range 1 - 1.1 cm
Max length : 2.5 cm TL самец/пол неопределен; (Ref. 4865); наибольший возраст (опубликованны данные): 2.45 годы (Ref. 48352)
Краткое описание
определительные ключи | морфология | морфометрия
колючие лучи спинного плавника (общее число) : 4; членистые (мягкие) лучи спинного плавника (общее число) : 6 - 8; колючие лучи анального плавника: 1; членистые (мягкие) лучи анального плавника: 8 - 10. Fresh specimens transparent, with large eyes showing the only color, black. Males smaller than females, shorter and more slender. Head naked; body covered with deciduous scales. Scales in longitudinal series 23-24; in transverse series 6. Sides and back of head with few dark or black spots.
Adults occur from the shoreline to depths of at least 12 m. Caught with collapsible Y-shaped push-nets (sakag); also aggregated using a device (abung) wherein the fish comes to rest upon palm leaves and are then harvested using triangular nets (sarap). Sinarapan is a delicacy and of great economic importance to the communities around the lakes. Listed in the Guinness Book of World Records as 'smallest food fish' (Ref. 6472).
Males sometimes mature below 1 cm; females a little over 1.1 cm. The eggs are pelagic. Upon hatching, the young swims at the surface for a short while, then settles at the bottom.
Herre, A.W.C.T., 1953. Check list of Philippine fishes. Res. Rep. U.S. Fish Wild. Serv. (20):1-977. (Ref. 280)
Статус Красного Списка МСОП (Ref. 130435: Version 2024-2)
Угроза для людей
Harmless
Использование человеком
рыболовство: коммерческий; аквариум: коммерческий
дополнительная информация
инструменты
Специальные отчеты
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ресурсы в Интернет
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00311 - 0.01063), b=3.11 (2.95 - 3.27), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.30 se; based on food items.
Generation time: 0.9 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
устойчивость к внешним воздействиям (Ref.
120179): высокий, минимальное время удвоения популяции до 15 месяцев (K=2.25; tmax=2.4).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).