Hellow guys, Welcome to my website, and you are watching Alewife otolith removal. and this vIdeo is uploaded by MA MarineFisheries at 2013-03-27T11:16:03-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
| Name | Alewife otolith removal |
| Video Uploader | Video From MA MarineFisheries |
| Upload Date | This Video Uploaded At 27-03-2013 18:16:03 |
| Video Discription | This video shows the otolith extraction technique that we use for river herring and American shad. First, using a knife, we slice the top of the head off exposing the brain cavity. Next we scoop out the brain matter to expose the otic capsules. We then extract the otic capsules and tease out the otoliths. This fish is an alewife, one of the two species of river herring that we manage here in Massachusetts. Otoliths, or "ear stones" are the preferred structure for ageing these species. Just like trees, otoliths have annular rings on them that can be counted to determine the age of the fish. |
| Category | People & Blogs |
| Tags | alewife | otolith extraction | river herring |
