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首页> 外文期刊>Aquaculture International >Rearing experiences of the polychaete Sabella spallanzanii in the Gulf of Taranto (Mediterranean Sea, Italy)
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Rearing experiences of the polychaete Sabella spallanzanii in the Gulf of Taranto (Mediterranean Sea, Italy)

机译：塔兰托湾（意大利地中海）多毛SaSabella spallanzanii的饲养经验

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摘要

In order to utilize the biomass of the polychaete Sabella spallanzanii Gmelin as a dietary supplement for fish nourishment, we conducted some experiences of rearing this worm in the Mediterranean Sea. A preliminary study on the growth of this species on suspended plastic nets was conducted in two sites of the Apulian coast with different trophic features. Data for the first 12 months show that S. spallanzanii reared in eutrophic conditions grows producing a biomass higher than the natural population. The acquired experience was afterward tested in a pilot plant located in the Mar Piccolo of Taranto, a eutrophic area where polychaetes were co-cultured with Mytilus galloprovincialis within a long-line farm. The slight mortality recorded during the first 2 months and quite negligible after 4 months, the high increase in volume and biomass of the reared polychaetes, especially at high density (70 individuals for each net), demonstrated the advantage of rearing S. spallanzanii in the pilot plant with low cost of production and high profit. If the acquired technology is applied to a medium farm containing up to 400 sectors, the biomass produced indeed might reach about 1.36 tons/year. In conclusion, on the basis of our results, we demonstrated the possibility to obtain high-value worm biomass coupled to mussel biomass in a completely non-fed culturing system without increasing, but presumably reducing the environmental impact due to mussel farming.
机译：为了利用多毛小沙门氏菌（Sabella spallanzanii Gmelin）的生物质作为鱼类营养的膳食补充剂，我们进行了一些在地中海饲养这种蠕虫的经验。在具有不同营养特性的阿普利亚海岸的两个地点进行了该物种在悬浮塑料网上生长的初步研究。前12个月的数据表明，在富营养条件下饲养的S. spallanzanii生长出的生物量高于自然种群。之后，在位于塔兰托（Maran Piccolo）的富营养区Mar Piccolo的中试工厂对获得的经验进行了测试，在该工厂中，多毛et与Mytilus galloprovincialis在一个长线农场中共同培养。在头两个月记录的轻微死亡率，在四个月后几乎可以忽略不计，饲养的多毛at的体积和生物量的增加很大，尤其是在高密度下（每个网70只），证明了在该地区饲养S. spallanzanii的优势。生产成本低，利润高的中试工厂。如果将所获得的技术应用于包含多达400个行业的中型农场，则产生的生物量确实可能达到约1.36吨/年。总之，根据我们的结果，我们证明了在完全不喂饲的养殖系统中获得与贻贝生物量耦合的高价值蠕虫生物量的可能性，而不会增加贻贝养殖的环境影响。

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