Beachworms (Onuphidae) - NSW Department of Primary Industries

I & I NSW
Wild Fisheries research Program
Beachworms
(Onuphidae)
Exploitation Status
Undefined
The catch comprises a mixture of species and there is insufficient information to assess the status of the
stocks. No precise estimate of the recreational catch is available.
Scientific name
common name
comment
Australonuphis parateres
[a polychaete worm]
Also known as slimy.
Australonuphis teres
[a polychaete worm]
Also known as kingworm and stumpy.
Hirsutonuphis mariahirsuta
[a polychaete worm]
 Also known as wiry.
Onuphidae
Image © Bernard Yau
Background
Beachworms are large members of the
Onuphid family. Three species are considered
important to commercial and recreational
fishers. Australonuphis teres, also known as the
‘kingworm’ or ‘stumpy’, and A. parateres, known
as the ‘slimy’, are the most valued. Hirsutonuphis
mariahirsuta, known as the ‘wiry’, is also caught
by fishers.
Australonuphis teres is found on surf
beaches from Lakes Entrance in Victoria to
Maroochydore in Queensland and A. parateres
is found on surf beaches from Adelaide in SA to
Yeppoon in Queensland. H. mariahirsuta occurs
on protected beaches from Camden Haven,
northern NSW to Yeppoon in Queensland.
Beachworms bury themselves in inter-tidal and
sub-tidal sand habitats. They move horizontally
through the sediment towards sources of food
and emerge from the sand when feeding. When
beachworms are at rest, they live vertically with
their head towards the top of their burrow.
In contrast to other members of the Onuphidae
family which build permanent tubes,
beachworms build temporary burrows. For
example, H. mariahirsuta create very thin and
fragile sand encrusted tubes whilst A. teres
and A. parateres strengthen the surrounding
sediment with mucus.
Beachworms have biology typical of polychaete
worms, with segmented bodies that absorb
oxygen. These species reproduce with external
fertilisation with male and female beachworms
expelling gametes into the water column.
s t a t u s o f f i s h e r i e s r e s o u r c e s i n n s w , 2 0 0 8 / 0 9 B e a c h w o r m s | p 25
wild fisheries research program
• Recreational landings are not accurately
known, and may be significant in some areas.
• There is a recreational bag limit of 20
beachworms.
p 26 | B e a c h w o r m s
00/01
02/03
04/05
06/07
08/09
Financial Year
Commercial landings (including available historical
records) of beachworms for NSW from 1997/98 to
2008/09 for all fishing methods.
Landings by Commercial Fishery of Beachworms
Estuary General (Key Secondary Species)
20
Landings (t)
5
0
• Commercial landings have declined from
20 t to 10 t in recent years, although fishing
effort has also declined and catch rates have
remained stable.
15
98/99
Additional Notes
• Three species occur in catches but they are
not reported separately.
10
5
Landings (t)
20
Historical Landings of Beachworms
0
Commercial beachworm collecting occurs
primarily during the summer. In NSW, collecting
peaks in January, slowly declines until
July, and increases again in the spring. The
majority of collecting occurs along the north
coast. Currently there is no evidence of over
harvesting of beachworms and overfishing is
unlikely given the labour intensive method
of collection. There have been, however,
complaints about localized depletions on
beaches that have high rates of collection.
The annual recreational harvest of beachworms
in NSW is likely to be less than 10 t. This
estimate is based upon the results of the offsite
National Recreational and Indigenous Fishing
Survey (Henry and Lyle, 2003) and onsite
surveys undertaken by I & I NSW.
25
Beachworms are collected for bait by
recreational and commercial fishers in NSW.
They are collected by hand, using a bait to lure
the worm out of its burrow. The worm is then
caught and pulled out of the sand by hand or
with pliers.
Recreational Catch of Beachworms
15
Beachworms are scavengers that feed on dead
fish, birds, molluscs, and other invertebrates
and are also known to consume seaweed. The
worms are a common source of food for fish
and birds.
Catch
10
Beachworm larvae live as zooplankton that
feed on phytoplankton. At about 3 cm long,
the planktonic worms settle in the sand as
juveniles. Australonuphis parateres can grow up
to 300 cm long and 1.5 cm wide, whilst A. teres
and H. mariahirsuta can both grow to 100 cm
long and up to 1.5 and 1 cm wide respectively.
Australonuphis spp. reach sexual maturity at a
length of around 40 cm.
97/98
99/00
01/02
03/04
05/06
07/08
Financial Year
Reported landings of beachworms by NSW commercial
fisheries from 1997/98. Fisheries which contribute less
than 2.5% of the landings are excluded for clarity and
privacy.
s tat u s o f f i s h e r i e s r e s o u r c e s i n n s w, 2 0 0 8 / 0 9
0.6
0.4
0.0
0.2
Relative Catch Rate
0.8
1.0
Catch Per Unit Effort Information of Beachworms
Harvested by Hand Gathering in NSW
98/99
00/01
02/03
04/05
06/07
08/09
Financial Year
Catch rates of beachworms harvested using hand
gathering for NSW. Two indicators are provided: (1)
median catch rate (lower solid line); and (2) 90th
percentile of the catch rate (upper dashed line). Note that
catch rates are not a robust indicator of abundance in
many cases. Caution should be applied when interpreting
these results.
Fur ther Reading
Anon. (2003). Onuphidae - Bait worm, Beach worm,
Quill worm. Australian Biological Resources
Study. Australian Government: Department of the
Environment and Heritage.
Paxton, H. (1996). Hirsutonuphis (Polychaeta :
Onuphidae) from Australia, with a discussion of
setal progression in juveniles. Invertebrate Taxonomy
10 (1): 77-96.
Fielder, D. and M. Heasman (2000). Status of the New
South Wales Beachworm Fishery 1990/1-1995/96.
Cronulla, NSW Fisheries.
Ponder, W., P. Hutchings and R. Chapman (2002).
Overview of the conservation of Australian marine
invertebrates: a report for Environment Australia.
Sydney, Australian Museum.
Fielder, D. (2004). Distribution, abundance and
population dynamics of beachworms (Onuphidae)
in Queensland/NSW and the impact of commercial
and recreational fishing. School of Life Sciences.
Brisbane QLD, University of Queensland. PhD
Thesis.
Henry, G.W. and J.M. Lyle (2003). The National
Recreational and Indigenous Fishing Survey. Final
Report to the Fisheries Research & Development
Corporation and the Fisheries Action Program
Project FRDC 1999/158. NSW Fisheries Final Report
Series No. 48. 188 pp. Cronulla, NSW Fisheries.
Please visit the CSIRO website,
http://www.marine.csiro.au/caab/ and search for
the species code (CAAB) 22 030001, 22 030002 and
22 030020, common name or scientific name to find
further information.
Paxton, H. (1979). Taxonomy and aspects of the life
history of Australian beachworms (Polychaeta:
Onuphidae). Australian Journal of Marine and
Freshwater Research 30 (2): 265-294.
© State of New South Wales through Industry and Investment NSW 2010. You may copy, distribute and otherwise freely deal with this publication for any purpose, provided that you attribute Industry and Investment NSW as the owner.
Disclaimer: The information contained in this publication is based on knowledge and understanding at the time of writing (April 2010). However, because of advances in knowledge, users are reminded of the need to ensure that information upon which they rely is up to date and to check currency of the information with the appropriate officer of Industry and Investment NSW or the user’s independent adviser.
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