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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Julidochromis: Taken from marine wrasse "julidini"; also from Greek, ioulis = a fish dealing with genera Coris or Thalassoma (Ref. 45335).
Eponymy: Dr Georges Marlier was a Belgian entomologist and zoologist whose doctorate was awarded by the University of Brussels. [...] (Ref. 128868), visit book page.
More on author: Poll.
Окружающая среда: среда / климатическая зона / пределы глубины / диапазон распространения
экология
; пресноводный демерсальный; pH range: 7.5 - 9.0; dH range: ? - 12, usually 3 - 9 m (Ref. 54894). Tropical; 22°C - 25°C (Ref. 1672); 3°S - 6°S, 30°E -
Africa: Endemic to the northwestern part of Lake Tanganyika.
Размер / Вес / Возраст
половая зрелость: Lm ? range ? - ? cm
Max length : 13.0 cm TL самец/пол неопределен; (Ref. 5651)
These fish are hardy, peaceful toward other species and highly intelligent. They are microfeeders and not carnivorous. In the wild, they often stay in deep water and never come to the surface to feed. They never swim in midwater but are typical rock-dwellers. Ventures into the open but never far from the rock cover. Breeds in crevices and caves (Ref. 6770). Monogamous pairs are most common (Ref. 54944).
Жизненный цикл и брачное поведение
половая зрелость | размножение | нерест | икра | Плодовитость | личинки
The same study (Ref. 54894) claims that polyandry aside from monogamy is also demonstrated by this species because of some observations in the nesting area where a female occupies 2 territories each with a male. This idea of an expanded mating system for J. marlieri was initially suggested by Yamagishi and Kohda (1996). However, monogamous pairs are most common (Ref. 54944). Males guard the nest against attacks by cichlid and non-cichlid predators alike (Ref. 54944).
Maréchal, C. and M. Poll, 1991. Julidochromis. p. 202-205. In J. Daget, J.-P. Gosse, G.G. Teugels and D.F.E. Thys van Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 4. (Ref. 5651)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-2 (Global))
Угроза для людей
Harmless
Использование человеком
рыболовство: коммерческий; аквариум: коммерческий
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Оценки, основанные на моделях
Индекс филогенетического разнообразия (ссылка
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Трофический уровень (ссылка
69278): 2.5 ±0.00 se; based on food items.
устойчивость к внешним воздействиям (ссылка
120179): средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (Fec = 70).
Уязвимость рыбной ловли (Ref.
59153): Low vulnerability (10 of 100).
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