رده بندی / Names
اسامي عام | مترادف | Catalog of Fishes(جنس, گونه ها) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
; آب شيرين موجوداتی که در محدوده وسیعی از آبهای آزاد از نزدیک بستر و یا روی کف بستر، در قسمت های میان آبی تا سطح آب و در برخی گونه ها با قابلیت پرواز، زندگی و تغذیه می کنند.. Tropical
South America: Columbia and possibly in Brazil and Venezuela.
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 2.8 cm SL جنس نر / بدون خواص جنسي; (Ref. 130065); 2.5 cm SL (female)
توصيف مختصر
ريخت شناسي | ريخت ستجي بوسيله انداره گيري
Males of Rivulus carolinae n. spec., differ from other minute species in the subgenus
Owiyeye, also known as the “rectocaudatus species group”, by the following combination Thus of characters. Body slender and small, dorsal pointed with a small basis, reaching beyond the caudal-fin base; anal fin long but not pointed; pelvic fins exceptional long, reaching from ray 8 to 11 (occasionally to the end of the anal fin base ending) of the anal fin; caudal truncated with straight but “frayed” yellow-white posterior border and reticulated pattern in the central portion; dark stripe starting posterior to the eyes, fading posteriorly on a bright blue background; orange dots on the sides surrounded with fine dark borders; males never express a "Rivulus spot."
Females differ by having all fins rounded; a brown nearly black zone, starting posterior of the caudal peduncle covering one-third of the caudal; the dark zone is divided in two by a thin white line reaching from the dorsal- to the ventral border. Females also differ from those of all known congeners by evincing a rust-color on ventral fins and all unpaired fins as well, and a body with red spots surrounded by a thin black margin on a blueish background. A somewhat similar caudal fin pattern is seen on females of Rivulus uakti from the middle Rio Negro. However, in that species the caudal pattern only covers twothirds of the dorsoposterior portion of the caudal. It differs from R. carolinae n. spec., by evincing different body colors and shorter ventral fins and a dark margin at the anal of females caudal fin. The image to the right shows a variation seen in few wild males only and is likely the result of fighting and in the process of regeneration. (Ref. 130065).
The type locality, a black water creek was located in primary forest under a thick canopy and where water depth was only a few cms, likely due to the flat terrain. The creek is divided into several smaller streams and covered a wide stretch of the forest floor. Rivulus carolinae was taken in leaf litter in the shallowest parts of the stream (Ref. 130065).
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Vermeulen, F.B.M. and D.A. Mejia-Vargas, 2020. Two new sympatric species of the aplocheiloid killifish genus Rivulus (s.l.) (Cyprinodontiformes: Rivulidae) from the Alto Rio Negro, Guainía Dpt., Colombia. Killi-Data Series 2020:22-35. (Ref. 130065)
وضعيت در فهرست قرمز IUCN (Ref. 130435)
خطر برای انسان ها
Harmless
استفاده انسانی
اطلاعات بيشتر
اسامي عاممترادفسوخت و سازشکارچیانسم شناسي بوم زيستيتولید مثلبلوغتخم ریزیSpawning aggregationFecundityتخم هانمو تخم
Age/Sizeرشدطول - وزنطول - طولنوسانات طولیريخت ستجي بوسيله انداره گيريريخت شناسيتوزاد ( لارو)پويايي لارويبازسازیفراوانيBRUVS
مراجعآبزي پرورينمايه آبزي پرورينژادهاژنتيكElectrophoresesوارثبيماري هافرآوریNutrientsMass conversion
همكارانعکس هاStamps, Coins Misc.صداهاسيگواتراسرعتنوع شناگریمنطقه آبششيOtolithsمغزهابینایی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic level (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
جهندگی (Ref.
120179): زياد, كمينه زمان لازم براي دو برابر شدن جمعيت ، كمتر از 15 ماه (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
