The University of Southampton
University of Southampton Institutional Repository

Early egg traits in Cancer setosus (Decapoda, Brachyura): effects of temperature and female size

Record type: Article

Previous study on Cancer setosus (Molina, 1782) had shown that latitudinal changes in temperature control the number of annual egg masses. This study focused on the effects of pre-oviposition temperature and female size on egg-traits in C. setosus from Northern (Antofagasta 23ºS) and Central-Southern (Puerto Montt 41ºS) Chile. Blastula eggs produced in nature ranged in dry mass (DM) from 9.1 to 15.1 µg, in carbon (C) from 4.8 to 8.4 µg, in nitrogen (N) from 1.0 to 1.6 µg, in C:N ratio between 4.7 and 5.4, and in volume (V) between 152 and 276 mm3 x 10-4 per female. Blastula eggs from females caught early in the reproductive season in Puerto Montt (09/2006) were significantly higher in DM, C, N, and V than those of females caught two months later (11/2006), reflecting a seasonal increase in water temperature. In Puerto Montt “early” and “late” season blastula eggs were about 32% and 20% higher in DM, C, N, and V as eggs from Antofagasta, respectively. Subsequent egg masses produced in captivity in Puerto Montt followed this pattern of smaller eggs with lower DM, C, and N content at higher pre-oviposition temperatures. In Antofagasta no significant difference in DM, C, N and V between eggs produced in nature and subsequent eggs produced in captivity was found and all egg traits were significantly positively affected by maternal size. Reproductive plasticity in C. setosus helps explaining the species wide latitudinal distribution range.

PDF Fischer_MEPS_09.pdf - Other
Download (283kB)

Citation

Fischer, S., Thatje, S. and Brey, T. (2009) Early egg traits in Cancer setosus (Decapoda, Brachyura): effects of temperature and female size Marine Ecology Progress Series, 377, pp. 193-202. (doi:10.3354/meps07845).

More information

Published date: 2009

Identifiers

Local EPrints ID: 64076
URI: http://eprints.soton.ac.uk/id/eprint/64076
ISSN: 0171-8630
PURE UUID: 3f347a35-dc23-4bac-bd7e-4fa4132bb1b8

Catalogue record

Date deposited: 27 Nov 2008
Last modified: 17 Jul 2017 14:14

Export record

Altmetrics

Contributors

Author: S. Fischer
Author: S. Thatje
Author: T. Brey

University divisions


Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×