CSIRO Publishing blank image blank image blank image blank imageBooksblank image blank image blank image blank imageJournalsblank image blank image blank image blank imageAbout Usblank image blank image blank image blank imageShopping Cartblank image blank image blank image You are here: Journals > Marine and Freshwater Research   
Marine and Freshwater Research
Journal Banner
  Advances in the aquatic sciences
blank image Search
blank image blank image
blank image
  Advanced Search

Journal Home
About the Journal
Editorial Structure
Online Early
Current Issue
Just Accepted
All Issues
Special Issues
Research Fronts
Virtual Issues
Sample Issue
For Authors
General Information
Submit Article
Author Instructions
Open Access
For Referees
General Information
Review an Article
Referee Guidelines
For Subscribers
Subscription Prices
Customer Service
Print Publication Dates
Library Recommendation

blue arrow e-Alerts
blank image
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

red arrow Connect with us
blank image
facebook twitter logo LinkedIn


Article << Previous     |     Next >>   Contents Vol 43(1)

Diets of sharks from estuaries and adjacent waters of the North-eastern Gulf of Carpentaria, Australia

JP Salini, SJM Blaber and DT Brewer

Australian Journal of Marine and Freshwater Research 43(1) 87 - 96
Published: 1992


Sharks were collected over 2 years (six field trips) from the offshore prawn trawling grounds in Albatross Bay (7-45 m depth), from shallow (< 5 m) nearshore waters, and from the adjacent inshore waters of the Embley River estuary. Stomachs from 11 shark species were collected and analysed gravimetrically (% dry weight). Four species (Carcharhinus cautus, C. dussumieri, C. tilstoni and Rhizoprionodon acutus) were represented in all three regions. Seven general food categories (Mollusca, Penaeidae, Brachyura, Stomatopoda, Other Crustacea, Teleostei and Other) were used to describe their diets. Nearly all sharks were primarily piscivorous, and the teleost diet is discussed in detail. Hemigaleus microstoma was not piscivorous and cephalopods represented 94.7% of its diet. Teleostei constituted less than 70% of the diet for three other species: C. amblyrhynchos offshore (64.3% Teleostei, 18.6% Penaeidae, 11.6% Mollusca), C. dussumieri offshore (52.5% Teleostei, 21.8% Stomatopoda, 10.1% Penaeidae), and R. acutus nearshore (59.3% Teleostei, 17.6% Cephalopoda, 10.3% Brachyura). Offshore, there was a strong correlation between estimates of consumed prey biomass and of trawled prey biomass, suggesting that these sharks feed in a density-dependent manner.

Full text doi:10.1071/MF9920087

© CSIRO 1992

blank image
Subscriber Login

PDF (445 KB) $25
 Export Citation
Legal & Privacy | Contact Us | Help


© CSIRO 1996-2016