Journal article

Deep rhodolith distribution in the Pontian Islands, Italy: A model for the paleoecology of a temperate sea

Palaeogeography, Palaeoclimatology, Palaeoecology, vol. 137, issue 1-2 (1998) pp. 173-187

  • 58


    Mendeley users who have this article in their library.
  • 112


    Citations of this article.
Sign in to save reference


Within the bathymetric range (27-98 m) of the soft bottoms investigated off the Pontian Islands, rhodoliths have been classified into three morphological groups: (1) the unattached, monospecific branches, mainly composed of the non-geniculate coralline red algae Phymatolithon calcareum, Lithothamnion corallioides and Lithothamnion valens: (2) the pralines (sensu stricto), monospecific little nodules with protuberances or short branches and a compact internal structure, normally due to the concentric growth of Lithothamnion minervae or Lithophyllum racemus over a pebble or a skeletal remain; (3) the large, multispecific rhodoliths with a 'boxwork' internal structure, due to long periods of growth under calm conditions interrupted by episodes of overturning and/or partial covering by sediments, with evident sedimentary fillings and a first nucleus often difficult to identify. A predictive model of distribution of species and growth forms of corallines and peyssonnelians in the framework of the Mediterranean circalittoral benthic zonation has been developed along two opposite gradients: (1) the frequency of overturning of the rhodoliths and (2) environmental stability of the bottom, conditioned by: sedimentation rate: absolute hydrodynamics of the environment; shape and density of the single rhodolith (depending on its nucleus).

Author-supplied keywords

  • Bottom features
  • Ecology
  • Growth form
  • Mediterranean Sea
  • Recent
  • Rhodophtya

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Get full text


  • Daniela Basso

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free