#ScienceatSea TAS 14 Sue Zupko, on board NOAA Ship Henry Bigelow, describes how scientists choose where to drop the trawl net for samplings: It is fascinating how the scientists select sites for sampling.The sea floor needs to be fairly flat to pull a net across. We learn what the bottom looks like using sonar. The crew watches the sonar information and scouts for a good area to drop our nets. They are trying to repeat a tow at the same time every year within a strata area. - TAS Sue Zupko tinyurl/obzyp29 Photos: [Top] Geoff Shook, the survey technician, reads the sonar information on the display. [Bottom] Atlantic Rock Crab (Cancer irroratus) from a deep water trawl.
Posted on: Tue, 16 Sep 2014 18:10:57 +0000
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