Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Net system production in coastal water as a function of eutrophication, seasonality and benthic macrofaunal abundance |
| Abstract | Net system production ranged from 13% to 29% of apparent system production in enclosures mod- elling coastal marine waters. Net production was measured by direct and indirect methods along with factors which impact its magnitude and fate. The direct measures of carbon, phosphorus, and nitrogen content of accumulating flocculent material in enclosures without sediment agreed with indirect measures by net system metabolism and by net sediment storage from nutrient mass balances. Increased nutrient supply, increased the absolute, but not relative, net system production ultimately stored in the sediment. Net production as dry weight of floc did not agree with that calculated from oxygen metabolism owing to a high silicon content of the organic matter. The presence of a benthic macrofauna decreased net system production storage by about 28-54% |
| Source | Estuaries 16 (2), pp. 247–254 |
| Keywords | COASTAL WATERPRODUCTIITYBENTHOSEUTROPHYCATION |
| Journal | Estuaries |
| Editor | Estuarine Research Federation], [Columbia, S.C., etc.,, Stati Uniti d'America |
| Year | 1993 |
| Type | Articolo in rivista |
| Authors | OVIATT C., DOERING P.H., NOWICKI B. & ZOPPINI A. |
| Text | 240570 1993 COASTAL WATER PRODUCTIITY BENTHOS EUTROPHYCATION Net system production in coastal water as a function of eutrophication, seasonality and benthic macrofaunal abundance OVIATT C., DOERING P.H., NOWICKI B. ZOPPINI A. UNIVERSITY OF RHODE ISLAND, NARRAGANSETT USA IRSA CNR ROMA Net system production ranged from 13% to 29% of apparent system production in enclosures mod elling coastal marine waters. Net production was measured by direct and indirect methods along with factors which impact its magnitude and fate. The direct measures of carbon, phosphorus, and nitrogen content of accumulating flocculent material in enclosures without sediment agreed with indirect measures by net system metabolism and by net sediment storage from nutrient mass balances. Increased nutrient supply, increased the absolute, but not relative, net system production ultimately stored in the sediment. Net production as dry weight of floc did not agree with that calculated from oxygen metabolism owing to a high silicon content of the organic matter. The presence of a benthic macrofauna decreased net system production storage by about 28 54% 16 http //link.springer.com/content/pdf/10.2307/1352497.pdf Articolo in rivista Estuarine Research Federation 0160 8347 Estuaries Estuaries Estuaries Estuaries. annamaria.zoppini ZOPPINI ANNAMARIA |