Abstract

Mediterranean lagoons are naturally exposed, during the dry season, to dystrophic and hypoxicevents determining dis-equilibrium conditions along temporal and spatial scales, which are linked tometabolism and life cycle of the biotic components.2 - In summer 2008, Lesina lagoon (SE Italian coastline) was interested by a geographically localizeddystrophic crisis which affected up to 8% of the total lagoon surface.3 - Temporal dynamics of principal descriptors of abiotic (water, sediment) and biotic (phytoplankton,benthic macroinvertebrate) compartments have been followed during the 2008 by collecting datainside stressed and control lagoon areas before a dystrophic event and in the six months after thedystrophic event.4 - The aim of the study was to analyse the pathways of ecosystem responses to dystrophic stress,searching for the characteristic scales of ecosystem compartment resistance and resilience.5 - The characteristic time-scale of abiotic and biotic component time responses varied from days,for the selected markers of the water column, to year, for the benthic ones. Short-term biotic andabiotic responses in the water column were strongly coupled while biotic and abiotic responses atthe sediment level were remarkably un-coupled. Dynamics and recovery time of water column andbenthic components do not match in Lesina following the dystrophic crisis, highlighting an intrinsicindividualistic behavior within the lagoon community driving ecosystem processes and ecosystemlevel responses.6 - Taxonomic and non-taxonomic descriptors of both phytoplankton and benthic macroinvertebratesshowed different response patterns as early warning signals and overall resilience. The emphasizeddifferences in the stability components, i.e., resistance and resilience, of water column andsediment abiotic and biotic characteristics as well as of taxonomic and non-taxonomic descriptorshas key implication in planning monitoring strategies and programs for transitional waters in theMediterranean and Black Sea EcoRegions.

Autore Pugliese

• Specchiulli Antonietta , D'adamo Raffaele

Tutti gli autori

• Basset A.; Barbone E.; Rosati I.; Vignes F.; Breber P.; Specchiulli A.; D'Adamo R.; Renzi M.; Focardi S.; Ungaro N.; Pinna M.

Titolo volume/Rivista

Transitional water bulletin

Anno di pubblicazione

2013

ISSN

1825-229X

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile