Aspidoras mephisto

Aspidoras mephisto Tencatt & Bichuette, 2017

ارفع صور و مقاطع فيديو
صور قوقل
Image of Aspidoras mephisto
No image available for this species;
drawing shows typical species in Callichthyidae.

التصنيف / الأسماء الأسماء الشائعة | مرادفات | Catalog of Fishes(جنس, الانواع) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Callichthyidae (Callichthyid armored catfishes) > Corydoradinae
Etymology: Aspidoras: Greek, aspis, -idos = shield + Greek, dora = skin (Ref. 45335)mephisto: Name refers to the shortened name of Mephistopheles, demon from the German folklore. Mephistopheles comes from the Greek by the combination of three words: με (me), a negation, φῶB (phōs), meaning light, and φιλιB (philis), meaning loving, literally ‘not-light-loving’, or the one who does not love the light, referring to the subterranean behavior of the new species; noun in apposition.

البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع البيئة

; المياه العذبة القاع. Tropical

التوزيع الأقاليم | مناطق الفاو | النظام البيئي | الظهور | نقطة علي الخريطة | مقدمة | Faunafri

South America: Brazil.

الحجم / وزن / العمر

النضج: Lm ?  range ? - ? cm
Max length : 4.6 cm SL ذكر/ مختلط الجنس; (Ref. 118110); العمر: 10 سنين (Ref. 118110)

وصف مختصر مفاتيح التعريف | الوصف الخارجي | قياسات المظهر الخارجي

This species is distinguished from all of its congeners by the following characters: with a conspicuous reduction of pigmentation and orbit in most specimens; with smaller preadipose azygous plates; presence of dorsal-fin spinelet; parieto-supraoccipital fontanel located mesially on bone; no distinct dark brown or black stripe from anteroventral portion of eye to upper lip lateral area, and absence of striated small platelets on ventral surface of trunk; infraorbital 1 generally with well-developed ventral laminar, or moderately-developed; with poorly-developed serrations on posterior margin of pectoral spine; dorsal fin, even in conspicuously colored specimens, with only dark brown or black chromatophores concentrated on rays, forming spots in some specimens, the membranes hyaline, or with isolated dark brown or black chromatophores on membranes, not forming any conspicuous pattern; nuchal plate not externally visible (Ref. 118110).
Body shape (shape guide): elongated; Cross section: oval.

أحياء     المصطلحات (على سبيل المثال epibenthic)

This species prefers slow waters (small values of dissolved oxygen), small depths (ca. 0.05 m) and bottom formed by silt, clay and boulders, showing higher values of Total Dissolved Solutes compared to the epigean drainage. Abundance is relatively high compared to other troglobitic fishes (ca. 50 individuals in pools), and population densities of 5±6 inds.m-2. Juveniles were observed along small stretches of the drainage, always in lentic and shallow places, isolated from the adults and frequently under roots. It forages calmly close to small submersed roots and silty-bottom, using the anterior extremity of the snout exploring the substrate in a parallel position or forming an angle of ca. 60° in relation to the bottom, sometimes under the small roots. The fish showed this behavior throughout the entire observation time (ca. 20 min) and did not show escape and/or avoidance behavior due to lamp-light or other external disturbances (e.g. presence of the observer). A detailed courtship behavior at the AneÂsio III cave is shown in a video file (https://www.youtube.com/watch?v=ksrV1af0NZY and https://figshare.com/articles/Aspidoras_mephisto_new_species/4583974). Two individuals were observed close to each other; the smaller one (considered the first male) starts to go around the larger (supposedly the female), and gives gentle touches on the flanks, head and tail. A third individual (the second male) arrives, and then the three stop parallel to each other. After a few seconds, they swim in the opposite direction, the female stops for a few seconds, then swims in the direction of the first male, showing a preference for this individual. However, the second male arrives and the first one swims in the opposite direction, avoiding contact. At this time, the second male, touches abruptly and quickly the female in the flanks and tail, but the female escapes immediately, avoiding the copula. Appearance of several juvenile individuals along the drainage, suggests that the fish were in the reproductive period (dry season); in contrast to the stated behavior of many troglobitic organisms, that show a reproductive peak in the beginning or middle of the rainy season, when food availability and input is higher. One possible explanation is that the AneÂsio-Russão cave-system can sustain the population due the large amount of submerged roots, which represent shelter and food source for this catfish, thus food is probably not the main limiting factor. Captive observations suggest that this species has a high life expectancy, which is a typical characteristic of troglobitic organisms. The holotype captured in adult stage on April 7, 2007 and was kept alive until its preservation, on April 20, 2016 (nine years in captivity). In addition, one of the paratypes, MCP 40634, also captured in adult stage on April 7, 2008 was maintained alive in the aquarium until February 13, 2015 (seven years in captivity). Considering that no evidence or study shows how much time it takes until they reach the adult stage, a minimal life expectancy of at least ten years could be possible for A. mephisto (Ref. 118110).

دورة الحياة وسلوك التزاوج النضج | التكاثر | وضع البيض | بيض | الخصوبة | اليرقات

المرجع الرئيسي قم بتحميل مراجعك | مراجع | المنظم : Reis, Roberto E. | المتعاونين

Tencatt, L.F.C. and M.E. Bichuette, 2017. Aspidoras mephisto, new species: The first troglobitic Callichthyidae (Teleostei: Siluriformes) from South America. PLoS ONE 12(3): e0171309. (Ref. 118110)

حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر للأنسان

  Harmless





استخدامات بشرية

FAO - Publication: search | FishSource |

مزيد من المعلومات

علم البيئة الغذائية
المواد الغذائية (الفرائس)
التركيبة الغذائية
استهلاك الأغذية
الحصص الغذائية
مفتريسات
البيئة
البيئة
الديناميكيات السكانية
معاملات النمو
الحد الأقصى للأعمار/الأحجام
علاقة الطول بالوزن.
علاقة الطول بالطول.
الطول- الترددات
التحويل الجماعي
توظيف
الوفرة
دورة الحياة
التكاثر
النضج
النضج/الخياشيم المتعلقة.
الخصوبة
وضع البيض
تجمعات التفريخ
بيض
تطور البيضة
اليرقات
حركة انتقال اليرقات
التوزيع
الأقاليم
مناطق الفاو
النظام البيئي
الظهور
مقدمة
بروفس - فيديوهات
التشريح
منطقة الخياشيم
الدماغ
الأوتوليث
علم وظائف الأعضاء
تكوين الجسم
المغذيات
استهلاك الأوكسجين
نوع السباحة
سرعة السباحة
الأصباغ البصرية
صوت السمك
الأمراض والطفيليات
السمية (LC50s)
جيني
الوراثة
جيني
التغاير
التوريث
التنوع الوراثي
ذات الصلة بالبشر
أنظمة الاستزراع المائي
ملامح تربية الأحياء المائية
سلالات
حالات سيغواتيرا
طوابع بريدية وعملات معدنية ومتنوعة
التوعية
المتعاونين
التصنيف
الأسماء الشائعة
مرادفات
الوصف الخارجي
قياسات المظهر الخارجي
صور
مراجع
مراجع

أدوات

تقارير خاصة

تنزيل XML

مصادر علي الأنترنت

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | البحث في مراقبي الأسماك | CISTI | Catalog of Fishes: جنس, الانواع | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | شجرة الحياة | Wikipedia: ذهب, بحث | World Records Freshwater Fishing | Zoobank | سجلات علم الحيوانات

تقديرات تستند إلى النماذج

مؤشر التنوع الشُعبي الوراثي (مرجع 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00287 - 0.01912), b=3.14 (2.92 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
مستوى غذائي (مرجع 69278):  3.0   ±0.3 se; based on size and trophs of closest relatives
المرونه (مرجع 120179):  عالي, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أقل من 15 شهر (Preliminary K or Fecundity.).
ضعف الصيد (Ref. 59153):  Low vulnerability (10 of 100). 🛈