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hg30717580

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[求助] 求助翻译几段关于海洋生物学的段落(急)

The colonization of macroalgal wrack by the meiofauna in the Arctic intertidal±

A litter bag experiment was performed on a wrack-loaded beach in Hornsund (southern Spitsbergen) to study the decay rate of stranded macroalgae and their colonization by meiofauna. The average monthly loss of macroalgal dry mass was 45±5%. The composition of the wrack-associated fauna was similar to those reported from other world regions. Nematodes composed of bacterivorous rhabditids and mon-hysterids were the numerically dominant taxon (>99% of the community). High nematode densities averaging 35,000 ind. per litter bag (6,500 ind g-1dwt) indicate their skills for rapid colonization and successful exploitation of the short-lived habitat established on an Arctic beach. We suggest that stranded macroalgae may play a role as a potential hotspot for nematodes and microbial processes in the Arctic coastal ecosystem. It is also suggested that wrack position on the beach profile which resulted in different wrack-age and moisture content may affect the composition and diversity of the wrack-associated meiofauna.
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wenzi6337

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爱与雨下: 金币+1 2012-03-17 12:02:15
hg30717580: 金币+30, 翻译EPI+1, ★★★很有帮助, 谢谢 2012-03-18 18:32:02
仅供参考。。。
较小型底栖生物对北极潮间带大型藻类海草的入侵
我们在霍恩松(斯匹次卑尔根岛南部)生长海草的浅滩做了小袋子(垃圾袋实验不太好吧)实验,来研究搁浅海藻的衰亡率以及它们被小型底栖生物入侵的程度。结果表明,海草的干物质月平均减少量为45±5%。衰亡海草上寄生的动物群落组成与其他地区研究报道的相似。其中线虫类主要(占群落生物总量的99%以上)是bacterivorous rhabditids和mon-hysterids这两种。每袋中线虫平均密度达35,000 ind(6,500 ind g-1dwt)。说明这两种线虫具有较快的入侵能力,能够在北极地区的海滩上快速适应短期的栖息环境。因此,我们认为北极地区海岸生态系统中搁浅的海草可能在提供线虫的栖息环境以及微生物分解等方面发挥重要作用,同时研究还发现海滩剖面的不同深处的海草,由于搁浅时间和湿度的差异,对其中寄生的底栖小型生物种群的组成和物种多样性的影响也不同。
2楼2012-03-17 11:15:33
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