Typhleotris mararybe Sparks & Chakrabarty, 2012
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Typhleotris mararybe
画像によって Sparks, J.S.
画像 | グーグルの画像
画像によって Sparks, J.S.
分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
> Gobiiformes (Gobies) > Milyeringidae (Blind cave gudgeons)
Etymology: Typhleotris: Greek, typhlos = blind + the name of a Nile fish, eleotris (Ref. 45335); mararybe: From the Malagasy 'marary' (ill or sick), and 'be' (big), meaning very sick or big sickness; in reference to the strange debilitating viral illness or sinkhole fever members of the expedition team contracted after snorkeling in Grotte de Vitane (Ref. 93144).
Etymology: Typhleotris: Greek, typhlos = blind + the name of a Nile fish, eleotris (Ref. 45335); mararybe: From the Malagasy 'marary' (ill or sick), and 'be' (big), meaning very sick or big sickness; in reference to the strange debilitating viral illness or sinkhole fever members of the expedition team contracted after snorkeling in Grotte de Vitane (Ref. 93144).
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
; 新鮮な水 底生の. Tropical
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
Africa: known only from Grotte de Vitane, a sinkhole near the town of Itampolo, Madagascar (Ref. 93144).
サイズ / 重さ / 年齢
簡単な記述 検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 5; 背鰭 (合計) : 8; 肛門の骨: 0; 臀鰭: 8; 脊つい: 26. Diagnosis: This species is characterized by uniformly dark brown pigmentation throughout the body, and extending onto the fins for 1/3 of their length; only the distal 2/3 of each fin lacks pigment, apart from the dorsal fins, which are dark brown (Ref. 93144). In addition, Typhleotris mararybe can be distinguished from congeners by the presence of prominent and protruding anterior skeletal elements: protruding lateral ethmoid, sphenotic, and pterotic projections, in combination with a strongly sunken and concave orbital region, lend the head a sculpted and angled bony appearance, particularly in dorsal view; a shorter pectoral fin not reaching a vertical through the anus when adpressed; and an elevated vertebral count (Ref. 93144). It is further distinguished from T. madagascariensis by the absence of scales fully covering the head and a longer second predorsal length (64.9-69.0% of standard length vs. 56.2-64.1% of standard length); and from T. pauliani by a shorter prepelvic length (33.0-33.9% of standard length vs. 34.1-40.4% of standard length), a pelvic formula of I,5, and the absence of a single leading spine in both the second dorsal and anal fins (Ref. 93144).
Body shape (shape guide): elongated.
Body shape (shape guide): elongated.
Blind, cave-dwelling species; the known habitat, Grotte de Vitane, is a karst formation with nearly vertical walls, whose water level at the time of collection was approximately 10-15 m below the rim; the diameter of the sinkhole was approximately 100 m across at its widest, and 70 m at its narrowest, with more or less shear walls; the heigth of the sinkhole walls to the water level was approximately 50 m on its southern end, and much shallower on the northern end (Ref. 93144). The water was relatively clear, deep, and warm, about 7.5-10 m deep on average; occurs in open water within 1–1.5 m of the surface; upon being chased, all individuals immediately dove toward the bottom (Ref. 93144).
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター | 協力者
Sparks, J.S. and P. Chakrabarty, 2012. Revision of the endemic Malagasy Cavefish genus Typhleotris (Teleostei: Gobiiformes: Milyeringidae), with discussion of its phylogenetic placement and description of a new species. American Museum Novitates 3764:1-28. (Ref. 93144)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
絶滅寸前の危機的状況 (CR) (B1ab(iii)); Date assessed: 14 May 2016
CITES
Not Evaluated
人間に対する脅威
Harmless
人間の用途
FAO - Publication: search | FishSource |
より多くの情報
ライフサイクル
繁殖
成熟
成熟度／エラ
生産力
放精
産卵群
卵
卵の開発
幼生
幼生の動力
繁殖
成熟
成熟度／エラ
生産力
放精
産卵群
卵
卵の開発
幼生
幼生の動力
解剖学
カマ
脳
オトリス
カマ
脳
オトリス
生理学
体組成
栄養素
酸素消費
水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
病気と寄生虫
毒性（LC50）
体組成
栄養素
酸素消費
水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
病気と寄生虫
毒性（LC50）
遺伝子の
ゲノム
遺伝子の
ヘテロ接合性
遺伝
遺伝的多様性
ゲノム
遺伝子の
ヘテロ接合性
遺伝
遺伝的多様性
用具
特記事項
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インターネットの情報源
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モデルに基づく推定値
|
系統多様性指数 (参照 82804) |
PD50 = 0.6406 [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). |
|
栄養段階 (参照 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
|
漁業の脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |