Reproductive strategy and gamete development of an invasive fanworm, sabella spallanzanii (polychaeta: Sabellidae), a field study in gulf st vincent, South Australia

Lee, AL; Dafforn, KA; Hutchings, PA; Johnston, EL

Reproductive strategy and gamete development of an invasive fanworm, sabella spallanzanii (polychaeta: Sabellidae), a field study in gulf st vincent, South Australia

Lee, AL Dafforn, KA

Hutchings, PA Johnston, EL

Permalink

Publication Type:: Journal Article
Citation:: PLoS ONE, 2018, 13 (7)
Issue Date:: 2018-07-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Published VersionAdobe PDF (6.68 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Lee, AL	en_US
dc.contributor.author	Dafforn, KA https://orcid.org/0000-0001-8848-377X	en_US
dc.contributor.author	Hutchings, PA	en_US
dc.contributor.author	Johnston, EL	en_US
dc.date.available	2018-06-17	en_US
dc.date.issued	2018-07-01	en_US
dc.identifier.citation	PLoS ONE, 2018, 13 (7)	en_US
dc.identifier.uri	http://hdl.handle.net/10453/133629
dc.description.abstract	© 2018 Lee et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Several reproductive strategies have been identified as key factors that contribute to the establishment and dispersal of invasive species in new environments. These strategies include early maturity, high reproductive capacity and flexibility in timing of reproduction. It is therefore critical to investigate the reproductive biology of target exotic species to understand their potential for population increase and invasive spread, and to inform management control strategies. The European fanworm, Sabella spallanzanii (Gmelin 1791), has established invasive populations along the southern coast of Australia. Gamete development and reproductive periodicity of this worm were investigated in two populations in Gulf St Vincent in South Australia over a 1 year period (July 2012 to June 2013). Samples of worms were collected monthly and dissected for histological analysis. Most individuals reached reproductive maturity at 70 mm body length (thorax and abdomen). Individuals from both populations contained mature and developing gametes year-round and a distinct spawning season was not observed. This may indicate sustained spawning by the population over the year, which provides a constant supply of new recruits to the area. Body length and egg size of worms from these populations were smaller than conspecifics in its native range and other invasive locations. Reproduction and development of S. spallanzanii differs not only between native and invasive locations, but also within invasive locations. This study has shown that S. spallanzanii exhibits a higher phenotypic plasticity and reproductive flexibility than previously known.	en_US
dc.relation.ispartof	PLoS ONE	en_US
dc.relation.isbasedon	10.1371/journal.pone.0200027	en_US
dc.subject.classification	General Science & Technology	en_US
dc.subject.mesh	Ovum	en_US
dc.subject.mesh	Spermatozoa	en_US
dc.subject.mesh	Animals	en_US
dc.subject.mesh	Polychaeta	en_US
dc.subject.mesh	Reproduction	en_US
dc.subject.mesh	South Australia	en_US
dc.subject.mesh	Female	en_US
dc.subject.mesh	Male	en_US
dc.subject.mesh	Introduced Species	en_US
dc.title	Reproductive strategy and gamete development of an invasive fanworm, sabella spallanzanii (polychaeta: Sabellidae), a field study in gulf st vincent, South Australia	en_US
dc.type	Journal Article
utslib.citation.volume	7	en_US
utslib.citation.volume	13	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	open_access
pubs.issue	7	en_US
pubs.publication-status	Published	en_US
pubs.volume	13	en_US

Abstract:

© 2018 Lee et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Several reproductive strategies have been identified as key factors that contribute to the establishment and dispersal of invasive species in new environments. These strategies include early maturity, high reproductive capacity and flexibility in timing of reproduction. It is therefore critical to investigate the reproductive biology of target exotic species to understand their potential for population increase and invasive spread, and to inform management control strategies. The European fanworm, Sabella spallanzanii (Gmelin 1791), has established invasive populations along the southern coast of Australia. Gamete development and reproductive periodicity of this worm were investigated in two populations in Gulf St Vincent in South Australia over a 1 year period (July 2012 to June 2013). Samples of worms were collected monthly and dissected for histological analysis. Most individuals reached reproductive maturity at 70 mm body length (thorax and abdomen). Individuals from both populations contained mature and developing gametes year-round and a distinct spawning season was not observed. This may indicate sustained spawning by the population over the year, which provides a constant supply of new recruits to the area. Body length and egg size of worms from these populations were smaller than conspecifics in its native range and other invasive locations. Reproduction and development of S. spallanzanii differs not only between native and invasive locations, but also within invasive locations. This study has shown that S. spallanzanii exhibits a higher phenotypic plasticity and reproductive flexibility than previously known.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/133629