分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) >
Rhinopristiformes (Shovelnose rays) >
Pristidae (Sawfishes)
Etymology: Pristis: Greek, pristis = saw (Ref. 45335).
More on author: Garman.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 半咸淡水 居于水底的; 深度上下限 1 - 20 m (Ref. 116378). 熱帶; 20°N - 25°S, 46°E - 155°E (Ref. 114953)
Indo-West Pacific: tropical Australia, possibly more widely distributed. A nominal record from the Canary Islands may not be this species, but the sketchily known Pristis pristis from the eastern Atlantic is similar and needs comparison to determine if the two species are distinct (Ref. 009859). India (Bay of Bengal), Indonesia to eastern Australia, isolatted record from Réunion (Ref. 114953).
印度-西太平洋: 熱帶澳洲,可能地更廣泛分佈了。 加納利群島可能不是這種，但是來自東大西洋的大略已知的 鋸鰩〔Pristis pristis〕 是相似的而且需要比較以決定是否的一個分類命名紀錄從兩者種是明顯的。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 318 cm TL 雄鱼/尚未辨别雌雄; (Ref. 116378); 最大年龄: 34 年 (Ref. 116378)
简单描述
检索表 | 型态特徵 | 形态测量图
Greenish brown, rarely yellowish; white ventrally; fins paler. Body shark-like, pectoral fins distinct; head flattened, with a blade-like snout bearing 18-22 pairs of lateral teeth; blade broad, not tapering distally. Nostrils broad with large nasal flaps. Rostral teeth slender, with a groove along posterior margins; teeth reaching basal quarter of blade. Skin with denticles.
绿褐色的, 非淡黄色的; 腹侧白色的; 鳍灰白。 身体像鲨鱼一样的, 胸鳍明显的; 平的头部, 具有一个生长着 18-22个对侧齿的刀剑状的吻; 叶片宽的, 末梢不尖的。 鼻孔宽的有大鼻盖。 嘴的齿细长的, 具有一个凹槽沿着后缘; 齿达到叶片的基部。 皮肤有细齿。
Demersal in shallow coastal inshore habitats in mangrove swamps and embayments (Ref. 114953), intertidal species found in estuaries and on tidal mudflats (Ref. 9859). Ascends brackish areas of rivers (Ref. 9859). Ovoviviparous (Ref. 50449). Pupping thought to occur during the tropical wet season (November to March in Australia (Ref. 114953). Biology little known (Ref. 9859). Males mature at approximately 260 cm TL, females possibly slightly larger; born at 65 cm TL (Ref. 114953). Flesh may be good to eat (Ref. 6871).
沿海地区与潮间带的种发现于河口了与在潮汐的泥滩上.(参考文献 9859) 上溯到河的半咸淡区域。 (参考文献 9859) 卵胎生的.(参考文献 50449) 生物学特性知道的很少.(参考文献 9859) 肉可能是好吃.(参考文献 6871)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Ovoviviparous, embryos feed solely on yolk (Ref. 50449).印度-西太平洋: 熱帶澳洲,可能地更廣泛分佈了。 加納利群島可能不是這種，但是來自東大西洋的大略已知的 鋸鰩〔Pristis pristis〕 是相似的而且需要比較以決定是否的一個分類命名紀錄從兩者種是明顯的。
Compagno, L.J.V. and P.R. Last, 1999. Pristidae. Sawfishes. p. 1410-1417. In K.E. Carpenter and V. Niem (eds.) FAO identification guide for fishery purposes. The Living Marine Resources of the Western Central Pacific. FAO, Rome. (Ref. 9859)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5234 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00198 - 0.01270), b=3.05 (2.83 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
