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首页> 外文期刊>Asian journal of animal and veterinary advances >Induced Spawning and Early Development of Modiolus philippinarum (Hanley, 1843) (Bivalvia: Mytilidae)
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Induced Spawning and Early Development of Modiolus philippinarum (Hanley, 1843) (Bivalvia: Mytilidae)

机译：菲律宾Mo鼠的产卵和早期发育（Hanley，1843年）（双壳纲：Mytilidae）

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摘要

A study was carried out to apply the induced spawning methods for a potential mariculture mussel species Modiolus philippinarum . Matured broodstock were collected from Merambong Shoal seagrass bed, Pulai River Estuary Johor and induced to spawn with two induced spawning methods. Mussels were successfully spawned after six hours of normal ambient exposure but failed to spawn when exposed to thermal cycling procedure. A total of 3.735x106 eggs were collected with an average of 81.07±3.42 μm in diameter. Early developments of M. philippinarum embryos were firstly recorded. First polar body was observed 10 min after fertilisation and early blastula with cilia was recorded 170 min after fertilisation. Embryos developed into late gastrulas after 5 h 30 min and early trochophores seen after 7 h. D-shaped veliger larvae with length averaged 99.51±9.98 μm and height averaged 81.87±8.14 μm (n = 30) were recorded after 27 h and only 23% of the eggs reached D-shaped veliger stage. Larval development ceased to progress on the third day into larval stage and failed to reach metamorphosis.
机译：进行了一项研究，将诱导产卵方法应用于潜在的养殖贻贝种类菲律宾扁豆（Modiolus philippinarum）。从柔佛普莱河河口的Merambong浅滩海草床收集成熟的亲鱼，并用两种诱导的产卵方法诱导产卵。贻贝在正常环境暴露六小时后成功产卵，但在热循环过程中未能产卵。总共收集到3.735x10 6 卵，平均直径为81.07±3.42μm。第一次记录了菲律宾分枝杆菌胚胎的早期发育。受精后10分钟观察到第一个极体，受精后170分钟记录到纤毛的早期囊胚。胚胎在5小时30分钟后发育成晚期胃，在7小时后可见早期滋养体。 27小时后，记录了平均长度为99.51±9.98μm，高度平均为81.87±8.14μm（n = 30）的D形果蝇幼虫，只有23％的卵达到D形果蝇阶段。进入幼虫期的第三天，幼虫的发育停止了，并没有达到变态。

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