State of the Environment

2006

Coasts and oceans

Theme commentary
Trevor J Ward, Greenward Consulting, Perth, Western Australia
Alan Butler, CSIRO Marine and Atmospheric Research, Brisbane, Queensland
prepared for the 2006 Australian State of the Environment Committee, 2006

Tables

Table 1: Australia’s fisheries catch and value: the ten-year trend in the 18 main species reported in SOE (1996) (Table 8.11)
Rank (by value in 93–94) Fishery/species Catch 93–94 tonnes Catch 03–04 tonnes Value 93–94 $million Value 03–04 $million Trends 93–94 Trends 03–04
1 Western Rock Lobster (Panulirus cygnus) 11 045 NA 287.12 NA Stable, fully exploited NA
2 Abalone: all species 4 723 5 585 177.50 189 413 Stable, declining in some areas NA
3 Tiger prawns: brown tiger (Penaeus esculentus), grooved tiger (P. semisulcatus) 6 062 2 193 147.23 32.1 Stable overall; Fully exploited; Not overfished
4 Southern Rock Lobster(Jasus edwardsii) 5 060 4 605
(excludes WA)
119.50 124.2
(excludes WA)
Stable; Fully exploited NA
5 Southern bluefin tuna (Thunnus maccoyii) 6 080  5 080 116.35 38.15 Stable; recovery uncertain from earlier overexploitation Overfished
6 Pearl oystera(a) - - 96.50 150 Stable; depressed in Torres Strait; Fully exploited NA
7 King prawns (species not reported) 6 056 U 68 44 U Stable Fully exploited U
8 Northern scallops (two species) 13 445 4 286 51.31 17.64 Variable; Some over exploited NA
9 Oysters (aquaculture: two species)(b) 2 280 7 625 48.85 71.82 Increasing; Space limitations NA
10 Banana prawns (two species) 3 348 3 516 36.54 36.04 Variable; Fully exploited Not overfished
11 Endeavour prawns (two species) 3 056 418
(NPF only)
31.36 4.39
(NPF only)
Stable; Fully exploited Uncertain
12 Crabs (species not reported) 3 551 - 17.55 - Variable; Fully exploited U
13 Southern scallops 9 006 6 029 16.60 7.36 Variable; Fully exploited NA
14 School and gummy shark 5 152 2 875 (Commonwealth fisheries only) 15.54 14.16 (Commonwealth fisheries only) Stable; some signs of recovery; School shark overexploited in 1980s; School Shark Overfished; Gummy Shark Not overfished
15 Coral trout 1 101 1 605
(Qld only)
13.21 24.08
(Qld only)
Stable; Some overexploited NA
16 Barramundi 861 1 624
(excludes WA and hatchery)
8.44 10.03
(excludes WA and hatchery)
Stable; Fully exploited NA
17 Mullet and sea mullet 4 464 5 433 8.23 12.91 Stable; Uncertain NA
18 Blue grenadier 3 111 8 819 7.08 11.2 Stable; quota not reached; Possibly under exploited; Not overfished

Notes:
NA = not available; U = unknown
(a) The value given is the value of the cultivated pearls produced.
(b) The value given is that of the cultured product of oysters. The catch is the weight of cultured product.

Source: 03–04 data from ABARE (2005); BRS (2004)

Table 2: Commonwealth, NSW & WA Fisheries status - not referred to in the text
Jurisdiction Fishery Name EPBC Ministerial Decision Status (from BRS, 2004)
Commonwealth Bass Strait Central Zone Scallop Fishery WTO NA
  Heard Islands and McDonald Islands Exempt Patagonian toothfish, mackerel icefish: not overfished
  Northern Prawn Fishery Exempt Banana, brown tiger, grooved tiger prawns: not overfished; endeavour, king prawns: uncertain
  Southern and Eastern Scalefish and Shark Fishery WTO Status reported as the component fisheries below: the South East Fishery trawl sector and South East Fishery non-trawl sector (which have many quota species in common); the Great Australian Bight Trawl
  Southern Shark Fishery   School shark overfished; gummy shark not overfished, current catch probably sustainable; sawshark and elephant fish uncertain
  South East Fishery – trawl and non-trawl fishery   Five species—blue warehou, eastern gemfish, orange roughy [except Cascade Plateau], redfish and silver trevally— classified overfished; and overfishing continues. Five species—blue-eye trevalla, blue grenadier, pink ling, spotted warehou and tiger flathead—classified not overfished; recent blue grenadier and flathead catch levels probably unsustainable in the long term; pink ling possibly nearing overfished, with catches declining and overfishing east of Bass Strait. Seven species—eastern school whiting, Jackass morwong, John dory, mirror dory, ocean perch, royal red prawn and western gemfish—uncertain. Of the 14 species or species-groups for which the Australian Fisheries Management Authority has set a catch-rate reference level, nine did not meet the criterion during 2003: blue-eye trevalla, blue warehou, jackass morwong, John dory, ocean perch,pink ling, redfish, spotted warehou and western gemfish
  Great Australian Bight Trawl fishery   Shelf: All species uncertainSlope: Uncertain; (orange roughy have quickly become overfished in other fisheries)
  Southern Squid Jig Exempt Uncertain in western Bass Strait; probably not overfished in other areas
  Coral Sea WTO NA
  Western Trawl Fisheries WTO NA
  Western Australian Southern DemersalGillnet and Longline Fishery (SDF)   Dusky shark and whiskery shark—overfished; gummy shark—not overfished; school shark overfished.
  Torres Strait Tropical Rock Lobster WTO Overfished; lack of reliable post-2000 catch data prevented review of the previous overfished classification; similarly, although effort has intensified, it is not possible to determine whether or not overfishing is occurring due to increased stock abundance
  TS Prawn Fishery   Tiger prawn not overfished; endeavour prawn uncertain but probably not overfished; king prawn uncertain
  Eastern Tuna and Billfish Fishery   Overfishing of Pacific bigeye but stock not yet overfished; yellowfin in the Western and Central Pacific Ocean (WCPO) not overfished and overfishing not occurring; status of marlins and south-western Pacific swordfish uncertain, but localised depletion of swordfish apparent; South Pacific albacore not overfished and overfishing is not occurring
  Southern & Western Tuna and billfish fishery   Bigeye tuna not overfished; yellowfin tuna and broadbill swordfish uncertain; overfishing of bigeye tuna is occurring in the broader Indian Ocean
  Western Tuna and Billfish Exempt NA
  Southern Bluefin Tuna WTO Overfished, and overfishing is occurring; spawning stock severely depleted and current catches severely limit probability of rebuilding
  Small Pelagics Fishery Temp WTO NA
New South Wales Estuary General Fishery Exempt Target species fully fished except squid, which has not been assessed (NSW Fisheries. 2003. Status of fisheries resources 2001/2002. Cronulla Fisheries Centre, NSW Fisheries,Cronulla, NSW, 293pp.)
  Estuary Prawn Trawl Fishery WTO Target species fully fished except squid which has not been assessed
  Ocean Hauling Fishery Exempt Fully exploited – garfish & silver trevally slightly overexploited
Western Australia Exmouth Gulf Prawn Fishery Exempt Fully exploited Breeding Stock Levels (BSL): Adequate
  Pearl Oyster Fishery Exempt Fully exploited BSL: Adequate
  Rock Lobster Fishery Exempt Fully exploited BSL: Adequate
  Shark Bay Prawn Fishery Exempt Fully exploited BSL: Adequate
  Shark Bay Snapper Fishery Exempt Over-exploited BSL: Inadequate
  Shark Bay Scallop Fishery Exempt Fully exploited BSL: Adequate 
  West Coast Deep Sea Crab Fishery WTO Not assessed BSL: Adequate
  Abalone Managed Fishery Exempt Fully exploited BSL: Adequate
  Broome Prawn Managed Fishery Exempt Under-exploited BSL: Adequate
  South Coast Crustacean Fishery WTO Fully exploited BSL: Adequate
  Salmon Fishery Exempt Fully exploited BSL: Adequate
  Mackerel Fishery Exempt Fully exploited BSL: Adequate
  Pilbara Trap Fishery WTO Fully exploited BSL: Adequate
  Kimberley Prawn Fishery Exempt Fully exploited BSL: Adequate
  Shark Bay Experimental Crab Fishery WTO NA
  Onslow/Nickol Bay Prawn Fishery Exempt Fully exploited BSL: Adequate
  Specimen Shell Managed Fishery Exempt Not assessed BSL: Adequate
  Pilbara Fish Trawl Fishery WTO Fully exploited BSL: Adequate