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https://hdl.handle.net/10316/17992
Title: | Impact of climate variability on ichthyoplankton communities: An example of a small temperate estuary | Authors: | Primo, Ana Lígia Azeiteiro, Ulisses Miranda Marques, Sónia Cotrim Pardal, Miguel Ângelo |
Keywords: | Ichthyoplankton; Seasonality; Environmental factors; Drought; Mondego estuary | Issue Date: | 1-Mar-2011 | Publisher: | Elsevier B.V. | Citation: | PRIMO, Ana Lígia [et al.] - Impact of climate variability on ichthyoplankton communities: An example of a small temperate estuary. "Estuarine, Coastal and Shelf Scienc". ISSN 0272-7714. 91:4 (2011) 484-491 | Serial title, monograph or event: | Estuarine, Coastal and Shelf Science | Volume: | 91 | Issue: | 4 | Abstract: | Recent variations in the precipitation regime across southern Europe have led to changes in river fluxes and salinity gradients affecting biological communities in most rivers and estuaries. A sampling programme was developed in the Mondego estuary, Portugal, from January 2003 to December 2008 at five distinct sampling stations to evaluate spatial, seasonal and inter-annual distributions of fish larvae. Gobiidae was the most abundant family representing 80% of total catch and Pomatoschistus spp. was the most important taxon. The fish larval community presented a clear seasonality with higher abundances and diversities during spring and summer seasons. Multivariate analysis reinforced differences among seasons but not between years or sampling stations. The taxa Atherina presbyter, Solea solea, Syngnathus abaster, Crystallogobius linearis and Platichthys flesus were more abundant during spring/summer period while Ammodytes tobianus, Callionymus sp., Echiichthys vipera and Liza ramada were more abundant in autumn/winter. Temperature, chlorophyll a and river flow were the main variation drivers observed although extreme drought events (year 2005) seemed not to affect ichthyoplankton community structure. Main changes were related to a spatial displacement of salinity gradient along the estuarine system which produced changes in marine species distribution. | URI: | https://hdl.handle.net/10316/17992 | ISSN: | 0272-7714 | DOI: | 10.1016/j.ecss.2010.11.009 | Rights: | openAccess |
Appears in Collections: | I&D CFE - Artigos em Revistas Internacionais FCTUC Ciências da Vida - Artigos em Revistas Internacionais |
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