Western Striped Grunter, Helotes octolineatus (Jenyns 1840)


Other Names: Eight-lined Trumpeter, Grunter, Sea Trumpeter, Shitty, Striped Perch, Striped Trumpeter, Tiger Perch, Trumpeter, Western Striped Trumpeter

Western Striped Grunter, Helotes octolineatus, in Geographe Bay, Western Australia. Source: Rick Stuart-Smith / Reef life Survey. License: CC by Attribution

Summary:

The Western Striped Grunter are bluish or greyish above, becoming silvery below, with 5–8 narrow dark brown stripes along sides, a long-based dorsal fin with a deep notch two‑thirds of the way along, and teeth with 3 distinct lobes or points. 

Video of a school of Western Striped Grunter at a crab pot.


This species was previously known as Pelates octolineatus.


Cite this page as:
Bray, D.J. 2018, Helotes octolineatus in Fishes of Australia, accessed 17 Nov 2018, http://fishesofaustralia.net.au/home/species/696

Western Striped Grunter, Helotes octolineatus (Jenyns 1840)

More Info


Distribution

Found in estuaries and river mouths from Victor Harbour to Port Lincoln, South Australia, and King George Sound to Shark Bay, Western Australia and east to Moreton Bay, Queensland, in depths of 0-15 metres.

Features

Dorsal fin XXI–XXII, 9–11; Anal fin III, 9–11; Caudal fin 17; Pectoral fin 15–16; Pelvic fin I, 5; Lateral line scales 76–87.

Body moderately shallow, elongate oval-shaped; head small; two spines dorsally on each operculum; preopercular edges serrate; eyes of moderate size; mouth small, nearly horizontal, reaching to between posterior nostril and eye; teeth tiny, each with 3 sharp points, in about 6 rows in each jaw.

Dorsal fin long-based, with a deep notch two‑thirds of the way back, soft portion diminishing in height posteriorly;  anal fin similar in size and shape as soft portion of dorsal fin;  caudal fin margin slightly concave; pectoral fins small, upper rays longest; pelvic fins small, arising distinctly behind and below pectoral fin origins, not quite reaching halfway to anus.

Scales very small, finely ctenoid, covering body and head except for area above and in front of eyes;  lateral line mostly straight, angled from above each pectoral fin. 

Size

To 28 cm total length

Colour

Bluish or greyish above, silvery below, with five to eight fairly evenly spaced narrow dark brown longitudinal stripes; outer half of spinous portion and anterior soft portion of dorsal fin black; caudal fin with a black margin and several fainter rows of basal spots or bands.

Feeding

Omnivore - often feeds on algae growing on seagrass.

Biology

The sexes are separate and fertilization is external. Western Striped Grunter spends the first year of its life in nearshore or estuarine seagrass meadows, before migrating to mature in deeper coastal waters with sparser seagrass.

Fisheries

Taken as bycatch in commercial prawn trawls.

Remarks

This species is fairly common in South Australian rivers.

Similar Species

In the past, the Western Striped Grunter has been confused with both the tropical Pelates quadrilineatus which occurs throughout the Indo‑West Pacific, reaching into northern Australian waters, and the temperate species Pelates sexlineatus, found along Australia's east coast.

Species Citation

Helotes octolineatus Jenyns, 1842, Fishes.  In: Darwin, C. (ed.) Zool. Voy.  Beagle 4: 18. Type locality: King George's Sound, Australia.

Author

Bray, D.J. 2018

Resources

Australian Faunal Directory

Western Striped Grunter, Helotes octolineatus (Jenyns 1840)

References


Allen, G.R. & M.F. Gomon. 2008. Family Terapontidae (pp. 617-619). In: Gomon. M.F., Bray, D.J. & Kuiter, R.H (eds) 2008. Fishes of Australia's Southern Coast. Sydney : Reed New Holland 928 pp. (as Pelates octolineatus)

Gomon, M.F., Glover, C.J.M. & Kuiter, R.H (eds) 1994. The Fishes of Australia's South Coast. Adelaide : State Printer 992 pp. 810 figs (as Pelates octolineatus)

Hutchins, J.B. & Swainston, R. 1986. Sea Fishes of Southern Australia. Complete field guide for anglers and divers. Perth : Swainston Publishing 180 pp. (as Pelates sexlineatus)

Jenyns, L. 1840. Part 4 Fishes. 1-64 pls 1-15 in Darwin, C. (ed.). The Zoology of the Voyage of H.M.S. Beagle under the command of Captain Fitzroy, R.N. during the years 1832 to 1836. London : Smith, Elder & Co.

Johnson, J.W. 2010. Fishes of the Moreton Bay Marine Park and adjacent continental shelf waters, Queensland, Australia. pp. 299-353 in Davie, P.J.F. & Phillips, J.A. Proceedings of the Thirteenth International Marine Biological Workshop, The Marine Fauna and Flora of Moreton Bay. Memoirs of the Queensland Museum 54(3) (as Pelates octolineatus)

Kuiter, R.H. 1992. Tropical Reef-Fishes of the Western Pacific, Indonesia and Adjacent Waters. Jakarta : PT Gramedia Pustaka Utama 314 pp. pls. (as Pelates octolineatus)

Kuiter, R.H. 1996. Guide to sea fishes of Australia. A comprehensive reference for divers and fishermen. Sydney, NSW, Australia : New Holland Publishers pp. I-xvii + 1-434 (as Pelates octolineatus)

Neira, F.J., A.G. Miskiewicz & T. Trnski. 1998. Larvae of temperate Australian fishes: laboratory guide for larval fish identification. University of Western Australia Press. 474 pp. (as Pelates octolineatus)

Vari, R.P. 1978. The terapon perches (Percoidei, Terapontidae) a cladistic analysis and taxonomic revision. Bulletin of the American Museum of Natural History 159(5): 175-340 figs 1-94 (as Pelates sexlineatus, in part)

Veale, L., P. Coulson, N. Hall, A. Hesp & I.C. Potter. 2015. Age and size compositions, habitats, growth and reproductive characteristics of a terapontid (Pelates octolineatus) in coastal waters. Marine and Freshwater Research 66(6): 535-548. http://dx.doi.org/10.1071/MF14079

Yearsley, G.K., Last, P.R. & Ward, R.D. (eds) 1999. Australian Seafood Handbook. Hobart : CSIRO Marine Research 460 pp. (as Pelates octolineatus)

Quick Facts


CAAB Code:37321020

Depth:0-15 metres

Habitat:Seagrass beds, sandy areas

Max Size:28 cm TL

Native:Endemic to Australia

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Species Maps

CAAB distribution map