Environment: milieu / climate zone / depth range / distribution range
экология
; пресноводный; солоноватоводный демерсальный; амфидромный (Ref. 123271); пределы глубины 5 - 10 m (Ref. 123271). Tropical
Africa: Madagascar and the Seychelles Islands (Ref. 6802, 123271).
Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 23.0 cm TL самец/пол неопределен; (Ref. 6802)
Краткое описание
определительные ключи | морфология | морфометрия
колючие лучи спинного плавника (общее число) : 7; членистые (мягкие) лучи спинного плавника (общее число) : 8 - 9; колючие лучи анального плавника: 1; членистые (мягкие) лучи анального плавника: 8 - 9. Diagnosis: Eleotris pellegrini is distinguished by second and fourth suborbital free neuromast rows on cheek extending ventrally past horizontal row 'd' ('2,4' pattern), row 'os' not connected with row 'oi' at ventro-posterior margin of operculum ('open' pattern); 15 pectoral fin rays; no teeth on vomer; scales in zigzag series 10-12, and 18-24 in transverse forward series (Ref. 123271). Within the pattern '2.4' group, Eleotris pellegrini differs from E. acanthopoma in having 15 pectoral fin rays vs. 16-17 and 28-34 scales in predorsal series vs. 30-42; it differs from E. vomerodentata by the absence of teeth in the vomer vs. presence; it differs from E. sahanaensis by a greater head length, 31-37% of standard length vs. 30-32%, and more scales in zigzag series, 10-12 vs. 10 (Ref. 123271).
This species is supposed to be mainly amphidromous (Ref. 123271). Maximum size up to 64 mm standard length (Ref. 123271). Epibenthic in fresh and brackish waters (Ref. 6802); it lives in the lower part of rivers, in muddy to clear rivers with sandy to gravel bottom between 5 to 10 m in altitude (Ref. 123271). It is carnivorous (Ref. 123271).
Life cycle and mating behavior
Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки
Mennesson, M.I. and P. Keith, 2020. Eleotris (Teleostei: Eleotridae) of the Indian Ocean: an overview with the description of three new species. Cybium 44(3):185-203. (Ref. 123271)
Статус Красного Списка МСОП (Ref. 130435)
Угроза для людей
Harmless
Использование человеком
дополнительная информация
инструменты
Специальные отчеты
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ресурсы в Интернет
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00391 - 0.02676), b=3.02 (2.79 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.8 ±0.3 se; based on size and trophs of closest relatives
устойчивость к внешним воздействиям (Ref.
120179): средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (13 of 100).
