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首页> 外文期刊>Animal biotelemetry. >A comparison of single-suture and double-suture incision closures in seaward-migrating juvenile Chinook salmon implanted with acoustic transmitters: implications for research in river basins containing hydropower structures
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A comparison of single-suture and double-suture incision closures in seaward-migrating juvenile Chinook salmon implanted with acoustic transmitters: implications for research in river basins containing hydropower structures

机译：单向缝和双缝切口闭合在向海迁移的奇努克鲑鱼中植入声发射器的比较：对包含水电结构的流域的研究意义

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Background Reductions in the size of acoustic transmitters implanted in migrating juvenile salmonids have resulted in the ability to make smaller incisions that may warrant using only a single suture for closure. However, it is not known if one suture will sufficiently hold the incision closed, particularly when outward pressure is placed on the surgical site, such as when migrating fish experience pressure changes associated with passage at hydroelectric dams. The objective of this research was to evaluate the effectiveness of single-suture incision closures on juvenile Chinook salmon ( Oncorhynchus tshawytscha ). Results Juvenile Chinook salmon were surgically implanted with a 2012 Juvenile Salmon Acoustic Telemetry System (JSATS) transmitter (0.30 g) and a passive integrated transponder tag (0.10 g), and incisions were closed with either one suture or two sutures. Mortality and tag retention were monitored, and tagged fish were examined after 7 and 14 d to evaluate tissue responses. In a separate experiment, surgically implanted fish were exposed to simulated turbine passage and then examined for expulsion of transmitters, expulsion of viscera through the incision and mortal injury. With incisions closed using a single suture, there was no mortality or tag loss and similar or reduced tissue reaction compared to incisions closed with two sutures. Furthermore, surgery time was significantly reduced when a single suture was used, which led to less handling time and time under anesthesia and consequently, stress. No tags were expelled during pressure scenarios. Expulsion of viscera occurred in two non–mortally injured fish (5%) with single sutures that were exposed to very high pressure changes, but no viscera expulsion was present in fish exposed to pressure scenarios, likely representative of hydroturbine passage at many Columbia River dams (for example, Conclusions We recommend the use of a single suture for surgical implantation of transmitters with incisions that are approximately 5.5 mm long after tag insertion.
机译：背景技术减小了在迁移的幼体鲑鱼中植入的声发射器的尺寸，这使得能够制作较小的切口，这可能需要仅使用单个缝合线进行闭合。然而，尚不知道一种缝合线是否能够充分保持切口闭合，特别是当向外的压力施加在手术部位上时，例如当迁移的鱼经历与在水力发电大坝中通过相关的压力变化时。这项研究的目的是评估单缝切口闭合对少年切努克鲑鱼（Oncorhynchus tshawytscha）的有效性。结果对奇努克鲑鱼进行了外科手术，植入了2012年幼鲑声遥测系统（JSATS）发射器（0.30 g）和无源集成应答器标签（0.10 g），并用一根或两根缝合线缝合切口。监测死亡率和标签保留，并在7和14天后检查标签鱼，以评估组织反应。在一个单独的实验中，将手术植入的鱼暴露在模拟的涡轮机通道中，然后检查发射器的排出，内脏通过切口的排出和致命的伤害。与使用两条缝线闭合的切口相比，使用一条缝线闭合的切口没有死亡或标签丢失，并且组织反应相似或减少。此外，使用单根缝合线可显着减少手术时间，从而减少了麻醉下的处理时间和时间，从而减轻了压力。在压力情况下，没有标签被驱逐。暴露在极高压力下的两条缝合线未缝合的两条非致命鱼中有内脏排出，但暴露于压力下的鱼中没有内脏排出，这可能代表了许多哥伦比亚河大坝的水轮机通过（例如，结论。我们建议使用单根缝合线对发射器进行手术植入，其切口在插入标签后的长度约为5.5 mm。

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