scholarly journals The infaunal community in experimentally seeded low and high density Manila clam (Tapes philippinarum) beds in a Po River Delta lagoon (Italy)

2006 ◽  
Vol 63 (5) ◽  
pp. 860-866 ◽  
Author(s):  
S. Mantovani ◽  
G. Castaldelli ◽  
R. Rossi ◽  
E.A. Fano
Keyword(s):  
Subsequent Development ◽  
River Delta ◽  
Manila Clam ◽  
Macrobenthic Community ◽  
In Situ Experiment ◽  
Northern Adriatic Sea ◽  
Tapes Philippinarum ◽  
Po River ◽  
Northern Adriatic ◽  
Infaunal Community

Abstract The Sacca di Goro is a shallow, brackish, eutrophic coastal lagoon in the southernmost part of the Po River Delta (northern Adriatic Sea, Italy). It is heavily exploited for rearing the Manila clam (Tapes philippinarum), mean annual production since 1986 being 10 000 t. Commercial cultivation of bivalves can exert severe impact on a local environment, especially on the invertebrate community, reducing species richness and abundance. An in situ experiment was conducted from March 2003 to February 2004 to examine the effect of clam cultivation on the macrobenthic community. Replicated sites within an area licensed for clam farming were seeded with low (500 m−2) and high (1500 m−2) clam densities; the surrounding unseeded areas were used as a control. There were only weak effects of clam presence and density on macrobenthic community abundance and functional group composition. The main determinants regulating the macrobenthic community were seasonal variations in other biota, particularly proliferation of the invasive mussel, Musculista senhousia, in August, which in turn caused a significant increase in the biomass of surface deposit-feeders and the subsequent development of Ulva rigida beds in September.

scholarly journals Sustainability of Mussel (Mytilus Galloprovincialis) Farming in the Po River Delta, Northern Italy, Based on a Life Cycle Assessment Approach

2020 ◽  
Vol 12 (9) ◽  
pp. 3814 ◽  
Author(s):  
Elena Tamburini ◽  
Edoardo Turolla ◽  
Elisa Anna Fano ◽  
Giuseppe Castaldelli
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Mytilus Galloprovincialis ◽  
Sustainability Assessment ◽  
River Delta ◽  
Northern Adriatic Sea ◽  
Po River ◽  
Northern Adriatic ◽  
Mussel Farms ◽  
Mediterranean Mussel

Molluscan shellfish aquaculture is considered a “green” industry because of the limited presence of chemicals and risk of pathogens during farming in licensed areas, which provide a safe, nutritive and healthy food source. Moreover, the environmental impact of their production is lower than all other fish animal per unit of protein. In particular, mussels’ production was the first organized mollusk aquaculture in Europe and is now one of the most extended. Italy is the second main European producer of mussels. Taking into account the relevance of the sector, Italian Mediterranean mussel (Mytilus galloprovincialis) aquaculture has been considered for a life cycle assessment (LCA), from a cradle-to-gate perspective. The mussel farms were located in the northern Adriatic Sea, close to the Po River Delta, a region traditionally vocated to bivalve aquaculture. Results have shown that the growing and harvesting phases are the most critical life cycle stages (“hotspots”) due to the production and use of boats, and the great quantity of non-recyclable high-density polyethylene (HDPE) socks used during the yearly productive cycle. Several improvement potentials have been identified and estimated by means of a sensitivity analysis. Furthermore, regarding the principal exporting countries to Italy (Spain and Chile), the transport factors in an overall sustainability assessment have been considered, in order to compare the local and global mussels supply chain.

scholarly journals Harmful Algae Records in Venice Lagoon and in Po River Delta (Northern Adriatic Sea, Italy)

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Chiara Facca ◽  
Dagmar Bilaničovà ◽  
Giulio Pojana ◽  
Adriano Sfriso ◽  
Antonio Marcomini
Keyword(s):  
Algal Blooms ◽  
Adriatic Sea ◽  
Venice Lagoon ◽  
River Delta ◽  
Future Research ◽  
Northern Adriatic Sea ◽  
Po River ◽  
Northern Adriatic ◽  
Cell Abundance ◽  
Tof Ms

A detailed review of harmful algal blooms (HAB) in northern Adriatic Sea lagoons (Po River Delta and Venice lagoon) is presented to provide “updated reference conditions” for future research and monitoring activities. In the study areas, the high mollusc production requires the necessity to identify better methods able to prevent risks for human health and socioeconomical interests. So, an integrated approach for the identification and quantification of algal toxins is presented by combining microscopy techniques with Liquid Chromatography coupled with High Resolution Time of Flight Mass Spectrometry (HPLC-HR-TOF-MS). The method efficiency was first tested on some samples from the mentioned coastal areas, whereDinophysisspp. occurred during summer in the sites directly affected by seawaters. Although cell abundance was always <200 cells/L, the presence of Pectenotoxin-2 (PTX2), detected by HPLC-HR-TOF-MS, indicated the potential release of detectable amounts of toxins even at low cell abundance.

scholarly journals Seasonal and Interannual Trends of Oceanographic Parameters over 40 Years in the Northern Adriatic Sea in Relation to Nutrient Loadings Using the EMODnet Chemistry Data Portal

Water ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2280 ◽  
Author(s):  
Federica Grilli ◽  
Stefano Accoroni ◽  
Francesco Acri ◽  
Fabrizio Bernardi Aubry ◽  
Caterina Bergami ◽  
...  
Keyword(s):  
Climate Changes ◽  
Management Practices ◽  
Adriatic Sea ◽  
Nutrient Concentrations ◽  
Data Series ◽  
Mean Flow ◽  
Northern Adriatic Sea ◽  
Po River ◽  
Northern Adriatic

Long-term data series (1971–2015) of physical and biogeochemical parameters were analyzed in order to assess trends and variability of oceanographic conditions in the northern Adriatic Sea (NAS), a mid-latitude shallow continental shelf strongly impacted by river discharges, human activities and climate changes. Interpolation maps and statistical models were applied to investigate seasonal and spatial variability, as well as decadal trends of temperature, salinity, chlorophyll-a and nutrients. This analysis shows that sea surface temperature increased by +0.36% year−1 over four decades. Annual mean flow of the Po River markedly changed due to the occurrence of periods of persistent drought, whereas the frequency of flow rates higher than 3000 m3 s−1 decreased between 2006 and 2015. Moreover, we observed a long-term decrease in surface phosphate concentrations in Po River water (−1.34% year−1) and in seawater (in summer −2.56% year−1) coupled, however, to a significant increase in nitrate concentration in seawater (+3.80% year−1) in almost all seasons. These changes indicate that the nutrient concentrations in the NAS have been largely modulated, in the last forty years, by the evolution of environmental management practices and of the runoff. This implies that further alteration of the marine environment must be expected as a consequence of the climate changes.

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