Polychaeta |
Aciculata |
Pilargidae
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
Benthic. Subtropical
Northwest and Western Central Pacific: China, Hong Kong, Vietnam and Indonesia.
首次成熟时的长度 / 大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Found in sediments with high content of silt and clay. Can also be found in coarser substrate composed of sand and gravel (Ref. 124802). Motile carnivore that has a jawed pharynx (Ref. 125872).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Members of the class Polychaeta are mostly gonochoric (sexual). Mating: Females produce a pheromone attracting and signalling the males to shed sperm which in turn stimulates females to shed eggs, this behavior is known as swarming. Gametes are spawned through the metanephridia or body wall rupturing (termed as "epitoky", wherein a pelagic, reproductive individual, "epitoke", is formed from a benthic, nonreproductive individual, "atoke"). After fertilization, most eggs become planktonic; although some are retained in the worm tubes or burrowed in jelly masses attached to the tubes (egg brooders). Life Cycle: Eggs develop into trocophore larva, which later metamorph into juvenile stage (body lengthened), and later develop into adults.
主要参考文献
参考文献 | 合作者 | 合作者
Zheng, Y., X. Chen, J. Chen, Y. Wang, X. Shen, W. Chen and C. Li 2003 Biological resources and the environment in East China Sea. Scientific Technology Publishing of Shanghai, 835 p. (参考文献 75927)
世界自然保护联盟红皮书
(参考文献 130435: Version 2025-2 (Global))
Not Evaluated
Not Evaluated
对人类的威胁
人类利用
FAO - Publication: search | FishSource |
工具
更多信息
人口动态成长最大年龄/尺寸长度-重量关系长短关系体长-频率质量转换丰度
网络资源
基于模型的估算
渔业脆弱性
(参考文献 71543) |
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