Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Distribution and Life History of the Mysid Rhopalophthalmus Mediterraneus in the Guadalquivir Estuary (SW Spain)

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Journal of Crustacean Biology

Abstract The Rhopalophthalmus mediterraneus population of the Guadalquivir Estuary (SW Spain) was sampled monthly from January 1998 to December 1999. Density, population structure, brood size, and standing stock were recorded during both years. The estuarine population of R. mediterraneus was concentrated in the outer 20 km of the estuary. There were considerable seasonal changes in the mysid abundance, with minima observed in winter and maxima in spring and summer. Such spatio-temporal distribution seemed to be related to estuarine environmental conditions: salinity was primarily responsible for the horizontal distribution of the species within the estuary, while its seasonal trend was determined primarily by water temperature. The population was characterised by a clear dominance of adults on all sampling dates and sites, with females (66.8%, on average) significantly more abundant than males (23.8%, on average), and the proportion of adult males and females changed significantly among sampling sites, being higher at the outer area (ANOVA; SNK test, P < 0.01). Gravid females were collected throughout the year, with maximal reproductive activity occurring in spring and summer. The population has a complex life cycle, being probably multivoltine and iteroparous. The brood size was significantly dependent on female size and season. The mean length of adults of both sexes varied negatively with temperature: smaller sizes occurred in summer.

Affiliations: 1: a Instituto de Ciencias Marinas de Andalucía (CSIC). Polígono Río San Pedro s/n, Apartado Oficial, 11510 – Puerto Real, Cádiz, Spain


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Journal of Crustacean Biology — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation