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Reproductive cycle and growth of Phyllopteryx taeniolatus

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Abstract:

In this study, 36 males, 33 females and 15 juveniles of the common or weedy seadragon Phyllopteryx taeniolatus, a syngnathid fish endemic to the waters of southern Australia, were identified using visual implant fluorescent elastomer tags and pattern of appendages and their reproductive cycle and growth was studied from May 2001 to June 2002. Brooding males were present for a period of >6 months, from June–July to early‐January. The percentage of males that were pregnant in the studied areas peaked in November–December, near the end of the breeding season. Two pregnancies were reported for some males. Ten recruits were identified from November to June. Growth rates for young‐of‐the‐year, young of the previous year, males and females were measured. The von Bertalanffy growth constant K was estimated at 0ยท098 month−1.

Keywords: breeding season; common or weedy seadragon; elastomer tagging; recruitment period; syngnathid

Document Type: Regular Paper

DOI: http://dx.doi.org/10.1111/j.0022-1112.2005.00720.x

Affiliations: 1: Department of Animal Biology (Invertebrates), Faculty of Biology, University of Barcelona, 645 Diagonal Ave, Barcelona 08028, Spain and 2: Department of Environmental Sciences, University of Technology, Sydney, Westbourne Street, Gore Hill, NSW 2065, Australia

Publication date: July 1, 2005

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