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Influence of seasonal environmental changes on the gamete production and biochemical composition of Crassostrea gigas (Thunberg) in suspended culture in El Grove, Galicia, Spain
High variation in carbohydrate levels during storage and gametogenic development suggests that carbohydrates are the main respiratory substrate, and proteins and lipids are important for supporting energetic costs during winter when the available food is scarce as indicated by low Chl a levels.
Effect of water erosion and cultivation on the soil carbon stock in a semiarid area of South-East Spain
Abstract An experiment to evaluate the impact of water erosion and cultivation on the soil carbon dynamic and carbon stock in a semiarid area of South-East Spain was carried out. The study was
Organic carbon enrichment in sediments: Effects of rainfall characteristics under different land uses in a Mediterranean area
Abstract The results of an experiment to evaluate the effect of rainfall characteristics on organic carbon (OC) losses and on the type of particles mobilised by erosion under natural rainfall and
Uptake of heavy metals to the extracellular and intracellular compartments in three species of aquatic bryophyte.
Results suggest that in S. undulata extracellular cation-binding sites have a high metal affinity, while in F. polyphyllus it is relatively low, however, postincubation intracellular contents were highest in the latter species.
Modelling the extra and intracellular uptake and discharge of heavy metals in Fontinalis antipyretica transplanted along a heavy metal and pH contamination gradient.
It is observed that the acidity of the environment greatly affected metal accumulation in extracellular sites, even when the metals were present at relatively high concentrations, whereas the uptake of metals within cells was much less affected by pH.
Belowground carbon allocation patterns in a dry Mediterranean ecosystem: A comparison of two models
Abstract Total belowground C allocation (TBCA) accounts for a large fraction of gross primary production, it may overtake aboveground net primary production, and contributes to the primary source of
Physiological and statistical methods to identify background levels of metals in aquatic bryophytes : Dependence on lithology
We determined levels of Cd, Cr, Cu, Co, Ni, Pb, Zn, Fe, and Mn in aquatic bryophytes [Fontinalis antipyretica Hedw., Fissidens polyphyllus Wils., Brachythecium rivulare Schimp., Rhynchostegium
Role of hydrodynamic conditions on quantity and biochemical composition of sediment organic matter in sandy intertidal sediments (NW Atlantic coast, Iberian Peninsula)
Ten beaches subjected to different wave action exposure were studied on the northwest coast of the Iberian Peninsula. According to descriptions of beach types (from very sheltered to very exposed)
Macroinfauna community structure and biochemical composition of sedimentary organic matter along a gradient of wave exposure in sandy beaches (NW Spain)
Six sandy beaches on the North West coast of Spain, exposed to different wave action, were sampled in order to study the macroinfauna community and the biopolymeric fraction (proteins, lipids and
Biomonitoring of sporadic acidification of rivers on the basis of release of preloaded cadmium from the aquatic bryophyte Fontinalis antipyretica Hedw.
To assess the validity of the proposed technique for biomonitoring of sporadic acidification events in rivers, laboratory trials with the aquatic bryophyte Fontinalis antipyretica Hedw.