Departament de Ciències Ambientals, Campus de Montilivi s/n, Universitat de Girona, 17071 Girona, Spain.
J Fish Biol. 2010 Dec;77(10):2423-42. doi: 10.1111/j.1095-8649.2010.02835.x.
The bluemouth Helicolenus dactylopterus dactylopterus is a zygoparous species that spawns multiple batches of embryos enclosed within a gelatinous matrix. Oocyte development is asynchronous, and the recruitment of secondary growth oocytes occurs continuously during the developing phase, but stops before the start of the first spawning (i.e. fecundity is determinate). The number of developing oocytes can be estimated as a function of the total length of the fish, its ovary mass and its gonado-somatic index. Only at the onset of spawning, when potential fecundity is determined, does condition also have a significant effect. The low levels of atresia detected during most of the spawning season show that this mechanism does not substantially affect the process. There is variability both in the spawning interval (with a mean of 2 days) and in the number of embryos comprising every single batch (up to 37,000). Expected effect of fisheries on the reproductive traits of this deep-sea species is also discussed.
蓝口石斑鱼是一种雌雄同体的物种，其生殖方式为分批产卵，每次产卵都会将多个胚胎包裹在凝胶基质中。卵母细胞的发育是不同步的，在发育阶段，次级生长卵母细胞的募集会持续不断，但在第一次产卵前停止（即产卵是有上限的）。可根据鱼的总长度、卵巢质量和性腺-体质量指数来估计发育中的卵母细胞数量。只有在开始产卵时，即决定潜在产卵量时，条件才会对其产生显著影响。在大多数产卵季节中检测到的低水平的闭锁表明，这种机制不会对该过程产生实质性影响。产卵间隔（平均为 2 天）和每次产卵所包含的胚胎数量（多达 37000 个）都存在差异。还讨论了渔业对这种深海物种生殖特征的预期影响。
