Capitella cf. capitata, Pettiboneia urciensis, Streblospio shrubsolii, Desdemona ornata, Perinereis cultrifera, Abra segmentum and Oligochaeta dominated the assemblage. Species composition was different between autumn 1996 and 1997. Increasing abundance of Streblospio shrubsolii, Capitella cf. capitata and Desdemona ornata was found from summer through to autumn 1997. Oligochaeta increased in autumn 1997. Perinereis cultrifera and Abra segmentum fluctuated with high values in winter and spring.
From summer 1996 through to autumn 1997 the seasonal changes of a macrofaunal assemblage, the nutritional value of organic matter (as content of lipids, proteins and carbohydrates) and the content of chlorophyll a in a Mediterranean mudflat were analysed. Sediment for macrofauna and biochemical analyses (chlorophyll a, lipids, proteins, and carbohydrates) was collected using a three-way nested sampling design. Results indicated differences in the composition of organic matter especially in summer 1997 and at all the other seasonal periods of sampling. In summer 1997 a sharp increase of protein concentration was measured. Chlorophyll a showed large fluctuations within seasons, especially during autumn and winter.
Seasonal variation of a deposit-feeder assemblage and sedimentary organic matter in a brackish basin mudflat (Western Mediterranean, Italy)
Como S;
2001
Abstract
From summer 1996 through to autumn 1997 the seasonal changes of a macrofaunal assemblage, the nutritional value of organic matter (as content of lipids, proteins and carbohydrates) and the content of chlorophyll a in a Mediterranean mudflat were analysed. Sediment for macrofauna and biochemical analyses (chlorophyll a, lipids, proteins, and carbohydrates) was collected using a three-way nested sampling design. Results indicated differences in the composition of organic matter especially in summer 1997 and at all the other seasonal periods of sampling. In summer 1997 a sharp increase of protein concentration was measured. Chlorophyll a showed large fluctuations within seasons, especially during autumn and winter.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
