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| Native range | All suitable habitat | Point map | Year 2050 |
|
| This map was computer-generated and has not yet been reviewed. |
| Zearaja nasuta AquaMaps Data sources: GBIF OBIS |
New Zealand country information
Common names:
Rough skate, Uku
Occurrence: endemic
Salinity: marine
Abundance: common (usually seen) | Ref: Cox, G. and M. Francis, 1997
Importance: commercial | Ref: Cox, G. and M. Francis, 1997
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Most common New Zealand skate (Ref. 26346). Occurs throughout the country (Ref. 9258) and usually found in coastal waters (Ref. 9258). Found in Chathams Island (Ref. 45493) and off the east coast of South Island (Ref. 58461). Large numbers caught in commercial trawls and the wings are sold locally or exported to Europe, especially France (Ref. 26346). Voucher specimen(s) held at the NMNZ (Ref. 5755). Also Ref. 6871, 9258.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/nz.html
National Fisheries Authority: http://www.fish.govt.nz/
Occurrences: Occurrences Point map
Main Ref: Cox, G. and M. Francis, 1997
National Database:
Occurrence: endemic
Salinity: marine
Abundance: common (usually seen) | Ref: Cox, G. and M. Francis, 1997
Importance: commercial | Ref: Cox, G. and M. Francis, 1997
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Most common New Zealand skate (Ref. 26346). Occurs throughout the country (Ref. 9258) and usually found in coastal waters (Ref. 9258). Found in Chathams Island (Ref. 45493) and off the east coast of South Island (Ref. 58461). Large numbers caught in commercial trawls and the wings are sold locally or exported to Europe, especially France (Ref. 26346). Voucher specimen(s) held at the NMNZ (Ref. 5755). Also Ref. 6871, 9258.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/nz.html
National Fisheries Authority: http://www.fish.govt.nz/
Occurrences: Occurrences Point map
Main Ref: Cox, G. and M. Francis, 1997
National Database:
Common names from other countries
分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii 板鰓亞綱 (鯊魚與魟魚) (sharks and rays) > Rajiformes (Skates and rays) 鰩目 (Skates and rays) > Rajidae (Skates) 鰩科 (Skates)
More on authors: Müller & Henle.
More on authors: Müller & Henle.
Environment: milieu / climate zone / depth range / distribution range 生態學
海洋 居於水底的; 深度上下限 10 - 1500 m (Ref. 26346). 溫帶
分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri
Southwest Pacific: endemic to New Zealand.
西南太平洋: 紐西蘭的特有種。
西南太平洋: 紐西蘭的特有種。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 59.0 range ? - ? cm
Max length : 118 cm TL 雄魚/尚未辨別雌雄; (Ref. 26346); common length : 62.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 9258); 最大年齡: 9 年 (Ref. 47618)
Max length : 118 cm TL 雄魚/尚未辨別雌雄; (Ref. 26346); common length : 62.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 9258); 最大年齡: 9 年 (Ref. 47618)
簡短描述 檢索表 | 型態特徵 | 形態測量圖
Brown dorsally, mottled with white and black spots, and a large dark blotch on each wing; white ventrally (Ref. 26346).
背部褐色的, 在每個翼上具有白色與黑色的斑點 , 與一個大的黑色斑塊色斑; 腹側白色的.(參考文獻 26346)
背部褐色的, 在每個翼上具有白色與黑色的斑點 , 與一個大的黑色斑塊色斑; 腹側白色的.(參考文獻 26346)
Inhabit the continental shelf and upper slope (Ref. 26346); usually in coastal waters (Ref. 9258). Found partially buried in sand (Ref. 26346). Feed on fish, shellfish, crabs, and worms (Ref. 114953, 26346). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 10.2-12.7 cm long and 6.3-8.3 cm wide (Ref. 41249, 41308).
棲息於大陸棚與上層斜坡;(參考文獻 26346) 通常在沿岸水域。 (參考文獻 9258) 發現身體的一部分埋藏在沙子中.(參考文獻 26346) 捕食魚，貝，螃蟹，與蠕蟲。 (參考文獻 26346) 卵生的。 明顯的成對出現。 幼魚可能傾向跟隨大的個體, 例如他們的母親.(參考文獻 205) 卵為長方形鞘囊具有僵硬的觸角沈積在沙灘或泥灘的角落.(參考文獻 205) 卵鞘是 10.2-12.7 公分長與 6.3-8.3 公分寬的.(參考文獻 41249,41308)
棲息於大陸棚與上層斜坡;(參考文獻 26346) 通常在沿岸水域。 (參考文獻 9258) 發現身體的一部分埋藏在沙子中.(參考文獻 26346) 捕食魚，貝，螃蟹，與蠕蟲。 (參考文獻 26346) 卵生的。 明顯的成對出現。 幼魚可能傾向跟隨大的個體, 例如他們的母親.(參考文獻 205) 卵為長方形鞘囊具有僵硬的觸角沈積在沙灘或泥灘的角落.(參考文獻 205) 卵鞘是 10.2-12.7 公分長與 6.3-8.3 公分寬的.(參考文獻 41249,41308)
Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Young hatching at about 18-20 cm (Ref. 26346). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).西南太平洋: 紐西蘭的特有種。
主要參考資料
Upload your references | 參考文獻 | 合作者 : McEachran, John | 合作者
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)
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FAO(Publication : search) | FishSource | 周邊海洋
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成長參數
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Length-weight rel.
Length-length rel.
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成長參數
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Length-weight rel.
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Anatomy
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Physiology
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耗氧量
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Body composition
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Estimates based on models
Preferred temperature (Ref. 115969): 7.4 - 12.6, mean 9.2 (based on 95 cells).
Phylogenetic diversity index (Ref. 82804): PD50 = 0.6250 [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).
營養階層 (Ref. 69278): 3.7 ±0.57 se; based on food items.
回復力 (Ref. 120179): 低的, 最小族群倍增時間4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153): High vulnerability (59 of 100).
Climate Vulnerability (Ref. 125649): High to very high vulnerability (70 of 100).