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 57(3)

The life history of weedy seadragons, Phyllopteryx taeniolatus (Teleostei : Syngnathidae)

Kristy L. Forsgren A, Christopher G. Lowe B

A University of Washington, School of Aquatic and Fishery Sciences, 1122 NE Boat Street, Seattle, WA 98195, USA.
B California State University, Long Beach, Department of Biological Sciences, 1250 Bellflower Blvd, Long Beach, CA 90840, USA.
C Corresponding author. Email: klforsg@u.washington.edu
PDF (319 KB) $25
 Export Citation


The aim of this study was to provide a detailed description of the life history of weedy seadragons, Phyllopteryx taeniolatus. Weedy seadragon development was described based on morphological characters and categorised into four periods: incubation, larval, juvenile and sub-adult. Hatching occurred 35–42 days post-fertilisation, most hatchlings exhibited juvenile characteristics upon hatching or shortly thereafter. The von Bertalanffy growth parameters generated from weedy seadragon length-at-age data were L = 285 ± 3 mm standard length (SL; mean ± s.e.) and k = 2.20 ± 0.05 year-1. Females possessed a higher gonosomatic index (GSI; 1.25 ± 1.18%; mean ± s.d.) than males (0.34 ± 0.20%), which increased substantially for females over 230 mm in length. Mature female weedy seadragons (290 ± 32 mm SL) ovulated 110 ± 27 eggs per female per spawning. Additionally, three females produced more than one clutch per season. Male weedy seadragons (319 ± 9 mm SL) successfully incubated 91 ± 40 eggs per spawning event. In addition to improving our understanding of the life history of weedy seadragons, this information can be used to estimate population demography and develop management strategies.

Keywords: Australia, development, growth, reproduction, syngnathid.

Subscriber Login

Legal & Privacy | Contact Us | Help


© CSIRO 1996-2016