Fisheries Infosite

AEBR 177 Fish and invertebrate bycatch and discards in New Zealand jack mackerel trawl fisheries from 2002–03 until 2013–14.


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AEBR-177-bycatch-and-discards-to-2013-14.pdf (15.4 MB)

This report summarises the level of non-protected fish species bycatch and discarding in the New Zealand jack mackerel target trawl fishery for the fishing years 2002–03 to 2013–14. The analyses were based on fisheries observer records and commercial catch effort data, and used two methods: one employing a ratio based estimator, the other based on a statistical model. Blue mackerel, frostfish, and redbait were the main bycatch species, with total annual bycatch of about 6650–18 800 t. Total discards were about 80–400 t per year, with spiny dogfish the main species discarded.

Document date
Friday, 27 January 2017
Document type
V 1.3
File format
Adobe PDF
File size
15.4 MB
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Uploaded date
Friday, 27 January 2017

Search tags
FishingMethod: trawl fisheries;
ResearchField: discards; fish; invertebrate; non protected species; trawl fisheries;
ScienceStock: Deepwater;
Species: Jack mackeral;

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