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Caliraja cortezensis (McEachran & Miyake, 1988)

Cortez skate
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Image of Caliraja cortezensis (Cortez skate)
Caliraja cortezensis
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板鰓亜鋼(サメとエイ類) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Caliraja: The prefix name Cali- refers to the state of California, United States and Gulf of California, Baja California, Mexico, the regions where the types of all four recognized species were described.
Eponymy: The etymologies do not help, but we believe these species are named after the Sea of Cortez where the holotypes were caught, or in the case of the eelpout, Cortez Bank off San Diego, California. (Ref. 128868), visit book page.

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

海 底生の; 深さの範囲 15 - 90 m (Ref. 114953), usually ? - 80 m (Ref. 9261). Subtropical; 28°N - 25°N, 113°W - 108°W (Ref. 114953)

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Eastern Central Pacific: endemic to Gulf of California (Mexico)

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 39.0 cm TL オス/雌雄の選別がない; (Ref. 114953)

生物学     用語集 (例 epibenthic)

Benthic on the inner part of the continental shelf (Ref. 9261). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Males reaches maturity at ca. 34 cm TL (Ref. 114953)

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

主な参考文献 Upload your references | 参考文献 | コーディネーター : McEachran, John | 協力者

McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)

IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)

  軽度懸念 (LC) ; Date assessed: 05 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

水産業: 興味がない
FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00141 - 0.00645), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.7   ±0.6 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  低い, ４．５年～１４年の倍増期間の最小個体群 (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (29 of 100).