Reptilia |
Crocodilia |
Crocodylidae
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
大洋性; 海洋洄游的 (参考文献 77091); 淡水; 深度上下限 0 - 200 m. Tropical; 41°N - 36°S, 77°E - 171°E (参考文献 356)
Indo-West Pacific.
首次成熟时的长度 / 大小 / 重量 / 年龄
成熟度: Lm 110.0 range ? - ? cm Max length : 615 cm TL 雄鱼/尚未辨别雌雄; (参考文献 77094)
Large head and strong snout with a pair of ridges bridging the orbits. Uniform dorsal scales. Very variable coloration. Juveniles with black bands and spots. Body with 4-5 black bands which may disappear in very large individuals. The belly is uniformly colored beige to golden yellow. Some individuals maybe highly pigmented.
May cross open ocean as evidenced by occurrence in remote islands in the Indian Ocean and in the western Pacific Ocean (salinity range 5-20 per mille). Inhabits a wide range of habitats (rivers, creeks, swamps, lagoons and billabongs); needs a source of water less salty than their blood (blood plasma salinity of 11per mille). Ref. 77096 reports a maximum length of 700 cm total length and a maximum weight of 1000 kg for captive individuals. Often basks on open mud banks in cooler months and often in the shade of mangrove areas in warmer months. Has a strong homing ability. Oceanodromous individuals may have barnacles attached to their scales (Ref. 77096). May also have endoparasites, i.e., round worms, tongue worms and flukes (Ref. 77091). Crocodile eggs and flesh are food for humans, while crocodile skin (notably near the belly) are used by the leather industry mostly from farmed crocodiles (Ref. 77091). Known to attack humans, sometimes fatally (Ref. 077096, 077099). Active throughout the year. Hunts by day and night; hunting probably associated to diving behavior. Size determines feeding, i.e., small crocodiles feed frequently on small prey items while larger crocodiles feed infrequently on larger prey. May consume carrion. Gastroliths (stomach stones) help in digesting food items (Ref. 77091).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
主要参考文献
参考文献 | 合作者 | 合作者
Greer, A.E. 2006 Encyclopedia of Australian reptiles - Crocodylidae. Australian Museum Online. [http://www.amonline.net.au/herpetology/research/encyclopedia.pdf Version date: 7 August 2006, accessed 16 July 2008]. (参考文献 77091)
世界自然保护联盟红皮书
(参考文献 130435: Version 2025-2 (Global))
对人类的威胁
Traumatogenic (参考文献 77096)
人类利用
渔业: 商业性; 养殖: 商业性
FAO - 渔业: landings search; Publication: search | FishSource | 周边海洋
工具
网络资源
基于模型的估算
回复力
(Ref. 69278): |
高度, 族群倍增时间少于 15个月 (K=0.71-2.5) |
渔业脆弱性
(参考文献 71543) |
Moderate to high vulnerability (50 of 100). |
价格分类
(参考文献 80766): |
Unknown. |
