Bythaelurus giddingsi, Galápagos catshark

Bythaelurus giddingsi McCosker, Long & Baldwin 2012

Galápagos catshark
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Native range | All suitable habitat | Point map | Year 2100
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Bythaelurus giddingsi   AquaMaps   Data sources: GBIF OBIS
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Image of Bythaelurus giddingsi (Galápagos catshark)
Bythaelurus giddingsi
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分類 / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Carcharhiniformes (Ground sharks) 真鯊目 (Ground sharks) > Scyliorhinidae (Cat sharks) 貓鮫科 (Cat sharks)
  More on authors: McCosker, Long & Baldwin.

Environment: milieu / climate zone / depth range / distribution range 生態學

; 海洋 深海區的; 深度上下限 428 - 562 m (Ref. 89625).   

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Pacific Ocean: presumed to be endemic to the Galápagos Islands.

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 45.3 cm TL 雄魚/尚未辨別雌雄; (Ref. 89625)

簡短描述 型態特徵 | 形態測量圖

This species is moderately sized and have the following characters: snout bluntly rounded; preoral length 4.7-6.8% TL; short head, length about equal to pectoral-pelvic space, 21-24% TL; precaudal length 73-80% TL; dorsal and anal fins are subequal; length of anal-fin base about equal to length of interdorsal space; 81-85 (mean = 82.6) precaudal vertebrae; color chocolate brown dorsally, paler on ventral surface from snout to anus; body, flanks, caudal and median fins are overlain with pale spots about equal in size to eye, becoming smaller below lateral midline, and showing a bilaterally asymmetrical pattern. It differs from its congeners in its coloration, the length of its anal-fin base, and in other morphological characters (Ref. 89625).

生物學特性     字彙 (例如 epibenthic)

This species were observed living on the bottom above sand or sand and mud substrates, in the vicinity of lava boulders, either over flat bottoms or along slopes to 45° (Ref. 89625).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚


主要參考資料 Upload your references | 參考文獻 | 合作者 : Compagno, Leonard J.V. | 合作者

McCosker, J.E., D.J. Long and C.C. Baldwin, 2012. Description of a new species of deepwater catshark, Bythaelurus giddingsi sp. nov., from the Galápagos Islands (Chondrichthyes: Carcharhiniformes: Scyliorhinidae). Zootaxa 3221:48-59. (Ref. 89625)

IUCN 瀕危狀態 (Ref. 123251)

  未評估 

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

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Estimates based on models

Preferred temperature (Ref. 115969): 2.6 - 3.3, mean 3.1 °C (based on 9 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00170 - 0.00646), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  4.3   ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  低的, 最小族群倍增時間4.5 - 14 年 ().
瀕危性 (Ref. 59153):  Moderate vulnerability (37 of 100) .