Quantifying and describing river herring bycatch in the U.S. northwest-Atlantic herring and mackerel trawl fisheries ...
No abstracts are to be cited without prior reference to the author. In the U.S. northwest Atlantic, the incidental catch of river herring (Alosa pseudoharengus, A.aestivalis) by mid-water trawl vessels targeting Atlantic herring (Clupea harengus) and mackerel (Scomber scombrus) has become a concern...
| Main Authors: | , , , , |
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| Format: | Conference Object |
| Language: | unknown |
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ASC 2013 - Theme session J
2024
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.17895/ices.pub.24753618 https://ices-library.figshare.com/articles/conference_contribution/Quantifying_and_describing_river_herring_bycatch_in_the_U_S_northwest-Atlantic_herring_and_mackerel_trawl_fisheries/24753618 |
| Summary: | No abstracts are to be cited without prior reference to the author. In the U.S. northwest Atlantic, the incidental catch of river herring (Alosa pseudoharengus, A.aestivalis) by mid-water trawl vessels targeting Atlantic herring (Clupea harengus) and mackerel (Scomber scombrus) has become a concern for their conservation. Information about this bycatch is limited to length frequencies and weight estimates across broad areas. In response, managers have proposed increasing atsea observer coverage to 100%, but this sampling rate may be fiscally impossible. By combining port-side and at-sea observations, we show that information about river herring bycatch can be improved without substantially increasing at-sea observer levels. We generated length distributions, maturity estimates, weights, and number of river herring caught for four near shore areas. We showed intra- and interspecies differences for these attributes between and within the areas of focus. These characteristics were also used to evaluate the ... |
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