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首页> 外文期刊>Aquaculture >Incorporation of fish feed and growth of blue mussels (Mytilus edulis) in close proximity to salmon (Salmo salar) aquaculture: implications for integrated multi-trophic aquaculture in Norwegian coastal waters.
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Incorporation of fish feed and growth of blue mussels (Mytilus edulis) in close proximity to salmon (Salmo salar) aquaculture: implications for integrated multi-trophic aquaculture in Norwegian coastal waters.

机译：鱼饲料的掺入和蓝贻贝（ Mytilus edulis ）在鲑鱼（ Salmo salar ）水产养殖附近的生长：对挪威沿海水域综合多营养水产养殖的影响。

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The incorporation of fish feed wastes in digestive gland and mantle tissue and average growth in length and standardized dry weight of soft tissue matter (DW') of blue mussels (Mytilus edulis L.) were measured for one year (June 2010-June 2011) at three experimental stations in close proximity to a salmon (Salmo salar) farm at Tristein (63 degrees 52'N, 9 degrees 37'E) in Central Norway, with one on the west side (FW), one on the east side (FE) and one 100 m east of the farm (FE100), in addition to one reference station 4 km south of the farm. A principal component analysis of fatty acid profiles clearly demonstrated the incorporation of fatty acids from salmon fish feed in digestive gland and mantle tissue, identified by an increased content of 18:1 (n-9). The incorporation, and consequently the separation of mussels at stations close to the fish farm from mussels at the reference station, was more pronounced in February compared to August, while no clear differences were found in June. The growth in length correlated significantly to feed use at the fish farm (r=0.89) and to the concentration of suspended particulate matter (SPM) (r=0.53) in the autumn-winter period (Oct-Feb) (p<0.05). The mussels at the reference station showed a significantly faster growth in length compared to the mussels at all stations at the fish farm during the summer, while mussels at the FW station grew faster than the mussels at the reference station during the spring (p<0.05). The length growth was faster for mussels at the reference station than for mussels at the FW and FE100 stations (p<0.05), while no significant differences were found between mussels at the reference and the FE stations for the entire year. The DW' was significantly positively correlated to the feed use at the fish farm stations (r=0.53) (p<0.05), and the DW' of mussels at stations at the fish farm was significantly higher compared to the DW' of mussels at the reference station in five months during autumn and winter (p<0.05). The results suggest that the combined production of mussels and salmon can be seen as a strategy to maintain a higher soft tissue content of mussels during autumn and winter. Quantification of the mussel's assimilation capacities of farm-derived wastes at realistic scale and under different environmental conditions is needed.
机译：一年中测量了鱼饲料在消化腺和地幔组织中的掺入量以及蓝贻贝（Mytilus edulis L.）的软组织物质（DW'）的长度和标准化干重的平均增长情况（2010年6月至2011年6月）在挪威中部Tristein（63度北纬9度，东经37度东）的鲑鱼养殖场附近的三个实验站，其中一个在农场西侧（FW），在农场东侧（FE）的一个，在农场以东（FE100）的100 m处，以及在农场以南4公里处的一个参考站。脂肪酸谱的主成分分析清楚地表明，鲑鱼饲料中的脂肪酸已掺入消化腺和地幔组织中，并以18：1（n-9）的含量增加的方式确定。与八月份相比，二月份的合并更为明显，因此与鱼类养殖场相邻的贻贝在参考站的贻贝分离更为明显，因此在六月份没有发现明显差异。长度的增长与秋冬期间（10月至2月）的养鱼场饲料使用量（r = 0.89）和悬浮颗粒物浓度（SPM）（r = 0.53）显着相关（p <0.05） 。与夏季期间在养鱼场所有站的贻贝相比，参考站的贻贝的长度增长明显快，而春季的FW站的贻贝的生长速度快于参考站的贻贝（p <0.05 ）。基准站的贻贝的长度增长快于FW和FE100站的贻贝的长度（p <0.05），而全年基准站和FE站的贻贝之间没有发现显着差异。 DW'与养鱼场站饲料的使用显着正相关（r = 0.53）（p <0.05），与养鱼场贻贝的DW'相比，养殖场站的贻贝的DW'显着更高。秋季和冬季五个月内的参考站（p <0.05）。结果表明，贻贝和鲑鱼的联合生产可以看作是在秋季和冬季保持贻贝较高的软组织含量的一种策略。需要在实际规模和不同环境条件下量化养殖场废物贻贝的同化能力。

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