Search results for "Laminaria"
showing 5 items of 5 documents
Typification of the Mediterranean Endemic Deep-Water MacroalgaLaminaria rodrigueziiBornet (Laminariaceae, Phaeophyceae)
2016
Abstract Laminaria rodriguezii Bornet is a deep-water brown alga endemic of the Mediterranean Sea. Lectotypification of Laminaria rodiguezii has been based on both Bornet's protologue and the original material housed at the cryptogamic collections of the Museum National d'Histoire Naturelle de Paris (PC).
Proposals for improvement of Annex I of Directive 92/43/ EEC: Central Italy
2021
The main purpose of the 92/43/EEC Habitats Directive is to contribute to the conservation of biodiversity, understood as habitat types and species of the flora and fauna of the European Union. To achieve this goal, natural and semi-natural biodiversity as a whole must be recognized and included in its annexes. As for the conservation of biotopes, named habitat types, Italy is unfortunately lacking as it the Annex I does not include important ecosystems that are typical of its territory, rare for biogeographical reasons or threatened. Therefore, the opportunity to identify a first list of significant habitats for central Italy is discussed here. For each of the new proposed types (new habita…
Influence of variable feeding on mesophilic and thermophilic co-digestion of Laminaria digitata and cattle manure
2014
Abstract In this study the effect of various feeding ratios on mesophilic (∼35 °C) and thermophilic (∼50 °C) co-digestion of brown algae Laminaria digitata and cattle manure was investigated. Algae input of 15% VS caused no influence on specific methane yield from mesophilic co-digester while deteriorated the process parameters such as the development of propionic acid in total volatile fatty acids (tVFA) pattern of the thermophilic co-digester. The accumulation of tVFA continued for the latter reactor as the feeding ratio of algae enhanced to 24% VS, but the specific methane yield improved dramatically. Same rise in feeding once again showed no improvement in specific methane yield from me…
Sorpcja miedzi w glonach morskich Laminaria ochroleuca bachelot de la pylaie= Sorption of copper in marine algae Laminaria ochroleuca bachelot de la …
2015
Przedmiotem badań było określenie stopnia zanieczyszczenia metalami ciężkimi ekosystemów wodnych, analizując próbki wody oraz osadów dennych zbiorników wód powierzchniowych na terenie parków miejskich rejonu Wałbrzycha. Zawartość metali w wodzie uszeregowano następująco: Zn > Cu > Pb > Ni > Cd. Wody z analizowanych stanowisk badawczych charakteryzowały się podwyższonym stężeniem kadmu, a zbiornik Nowe Miasto dodatkowo znaczącym stężeniem Pb. Koncentracje Cu, Ni oraz Zn nie stanowiły zagrożenia dla funkcjonowania ekosystemów wodnych. Koncentracja metali w osadach dennych stanowiła szereg: Zn > Pb > Cu > Ni > Cd. Badania osadów dennych, pobranych ze zbiorników, nie wykazały znaczącego zaniecz…
The seaweeds <i>Fucus vesiculosus</i> and <i>Ascophyllum nodosum</i> are significant contribu…
2013
Abstract. Based on the results of a pilot study in 2007, which found high mixing ratios of molecular iodine (I2) above the intertidal macroalgae (seaweed) beds at Mweenish Bay (Ireland), we extended the study to nine different locations in the vicinity of Mace Head Atmospheric Research Station on the west coast of Ireland during a field campaign in 2009. The mean values of I2 mixing ratio found above the macroalgae beds at nine different locations ranged from 104 to 393 ppt, implying a high source strength of I2. Such mixing ratios are sufficient to result in photochemically driven coastal new-particle formation events. Mixing ratios above the Ascophyllum nodosum and Fucus vesiculosus beds …