Abstract
This study compared three surgical techniques to implant acoustic transmitters in rainbow trout (Oncorhynchus mykiss): 1) acoustic transmitter insertion via a ventral incision closed with two sutures, 2) insertion via a ventral incision with no sutures, 3) insertion via a lateral incision with no sutures. A control group consisting of fish that were only anesthetized and handled was also included. Tag retention, wound healing, inflammation, growth, and survival were recorded over a 12-week period. Tag retention was significantly different among the treatments, at 100% in the unsutured ventral incision group, 89% in the lateral incision group, and 63% in the sutured ventral incision group. Surgical wounds in the unsutured treatment groups showed significantly less inflammation than the sutured treatment. Wound closure occurred significantly faster in the ventral incision groups compared to the lateral incision group. The results of this study show the utility of using unsutured surgical methods for implanting acoustic transmitters in rainbow trout.
Highlights
Electronic transmitters are frequently used to study fish ecology, behavior, and survival [1] [2]
Tag retention was significantly different among the treatments, at 100% in the unsutured ventral incision group, 89% in the lateral incision group, and 63% in the sutured ventral incision group
Tag retention was significantly lower in the sutured treatment in comparison to the other surgical techniques, and no tags were expelled from the trout receiving an unsutured ventral incision (Table 2)
Summary
Electronic transmitters are frequently used to study fish ecology, behavior, and survival [1] [2]. Transmitters can be attached externally, placing transmitters internally is preferred to reduce drag and eliminate the potential snagging of aquatic vegetation [3]. Gastro-intestinal insertion has been used, but transmitter retention is poor, and digestion can be impaired [4]. The most common method is ventral insertion into the peritoneal cavity via laparotomy, with the incision closed using sutures [5].
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
