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CONTENTS Contents .....................................................................................................................................2 Octopus ......................................................................................................................................3 Large ostrich foot whelk ..........................................................................................................14 Carpet shark .............................................................................................................................23 Hammerhead shark ..................................................................................................................34 Javelinfish ................................................................................................................................40 Orange perch............................................................................................................................46 Rattails .....................................................................................................................................51 Redbait .....................................................................................................................................60 Seal shark.................................................................................................................................66 Silver dory................................................................................................................................74 2
OCTOPUS Common name: Octopus Species code: OCT, OPI, DWO and all other octopus species Stock area: 1-10 Introduction 1 There are forty-one octopus species known in New Zealand waters representing eleven families. These families are listed in Table 1 on the following page. 2 The coastal octopus Pinnoctopus cordiformis (also known as Octopus cordiformis or Octopus maorum) is considered to be the most common near-shore species caught. It is found in shallow coastal areas, often around reefs or harbour entrances. Another species, albeit not as commonly caught, is Octopus kaharoa, which is found off the east coast between Kaikoura and North Cape in depths of between 70-550m on sandy bottoms. 3 Of the deep-water species, the most commonly caught are the umbrella octopuses (family Opisthoteuthis) that are found in depths of 400-900m, and the giant deepwater octopus (Enteroctopus zealandicus) that is thought to have a distribution from the east coast of the South Island to the sub-Antarctic islands at a depth range of 400- 800m. Other octopus species are known to occur but there is extremely little or no information regarding these. Their abundance, distribution patterns and ecological significance is unknown. 4 In New Zealand, octopuses are caught almost exclusively as bycatch across a large number of fisheries including rock lobster and blue cod pot, bottom trawl, and bottom long line fisheries. The largest reported catches are in the rock lobster pot fishery. Pinnoctopus cordiformis is the main bycatch of the rock lobster fishery. 5 Catches of octopuses are recorded in catch effort returns as OCT (Pinnoctopus cordiformis), DWO (deep water octopus spp.) and OPI (umbrella octopus spp.) OCT accounts for the majority of catches. Over the previous five years there has been very few catches recorded as DWO (55kg) or OPI (3,828kg). Consequently there is no information to determine how many species of octopus are caught and whether separate biological stocks of these octopuses occur in New Zealand. It is assumed most of the catch is Pinnoctopus cordiformis, but a number of other octopus species are probably included. It is possible that the species’ catch is determined to some extent by species’ distribution and by target fishery. 3
Page 1: Species under consideration for int
Page 5 and 6: charts is limited and therefore the
Page 7 and 8: Figure 1: Comparison of reported la
Page 9 and 10: Recreational fishery characteristic
Page 11 and 12: Risk analysis and evaluation STOCK:
Page 13 and 14: Immediacy and uncertainty risk anal
Page 15 and 16: Environmental effects and protected
Page 17 and 18: Table 2: Estimated catch of whelk (
Page 19 and 20: Recommendation 20 Regardless of whe
Page 21 and 22: Generic objective 2: Risk to avoidi
Page 23 and 24: CARPET SHARK Class: Chondrichthyes
Page 25 and 26: Growth, reproduction and recruitmen
Page 27 and 28: Figure 3: Commercially landed catch
Page 29 and 30: Table 2: Processed state percentage
Page 31 and 32: Sources of Information Data Sources
Page 33 and 34: Generic objective 3: Risk to provid
Page 35 and 36: Associated species (bycatch and tar
Page 37 and 38: Fishing Council record an average o
Page 39 and 40: Generic objective 3: Risk to provid
Page 41 and 42: also contributed nearly 9% to the t
Page 43 and 44: Treaty settlement obligations 20 MF
Page 45 and 46: Severity of impact (low, medium or
Page 47 and 48: from observer data in the squid tra
Page 49 and 50: Risk analysis and evaluation STOCK:
Page 51 and 52: RATTAILS Introduction 1 Rattails (o
Page 53 and 54:
Biological information Morphology,
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WHX (white grenadier) Landed state
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Risk analysis and evaluation STOCK:
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Additional risk analysis not applic
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Redbait contributed 1% to the total
Page 63 and 64:
Page 65 and 66:
Objective(s) returning highest scor
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Habitat interactions 6 No informati
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catches. The reported discards have
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Severity of impact (low, medium or
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Relationship with other QMS stocks
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Protected species interactions 7 No
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