Aquatic Environment and Biodiversity Annual Review 2012

AEBAR 2012: Non-protected bycatch
6. Non-protected species (fish and invertebrates)
bycatch
Scope of chapter This chapter outlines the main non-protected bycatch species (fish and
invertebrates) and annual levels and trends in bycatch and discards in
New Zealand’s major offshore fisheries. Research in this field is
conducted fishery by fishery and this first summary of current
knowledge reflects that strategy. It is expected that future summaries
will be aligned to the general format used in other sections of this
report, and be based on fishing method, habitat type, region, or a
combination of these.
The fisheries summarised are as follows:
Trawl fisheries: Longline fisheries: Other fisheries
Arrow squid Ling
Albacore troll
Hoki/hake/ling
Jack mackerel
Tuna
Skipjack purse seine
Area
Southern blue whiting
Orange roughy
Oreo
Scampi
All areas and fisheries
Focal localities Arrow squid: Auckland Islands and Stewart/Snares Shelf (80–300 m).
Hoki/hake/ling: Chatham Rise, West Coast South Island, Campbell
Plateau, Puysegur Bank, and Cook Strait (200–800 m).
Jack mackerel: West Coast of the North and South Islands, Chatham
Rise, and Stewart-Snares Shelf (0–300 m).
Southern blue whiting: Campbell Plateau and Bounty Plateau (250–600
m).
Orange roughy: The entire New Zealand region (700–1200 m).
Oreos: South Chatham Rise, Pukaki Rise, Bounty Plateau, and
Southland (700–1200 m).
Scampi: East coasts of the North and South Islands, Chatham Rise, and
Auckland Islands (300–450 m).
Ling longline: Chatham Rise, Bounty Plateau, and Campbell Plateau
(150–600 m).
Tuna longline: Surface waters off the east coast of the North Island and
west coast of the South Island.
Albacore troll fishery: Surface waters off the west coasts of the North
and South Islands.
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