Aliphatic hydrocarbons and linear alkylbenzenes in zooplankton from the Gulf of Trieste

Serrazanetti, Gian Paolo; Pagnucco, C.; Purcaro, Giorgia; Artusi, Roberto

doi:10.1016/0045-6535(94)90330-1

Cited by 10 publications

(14 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Higher proportions of myristic acid were determined in winter copepods of the Gulf of Trieste in respect to other seasons (Serrazanetti et al 1994b). In the same samples Pr/C,, ratios were as high as at Stn SJ107 (Serrazanetti et al 1994a). A very similar fatty acid pattern characterized various phytoplankton species (Mayzaud et al 1989, Volkman et al 1989 as well as the chain-forming diatom Skeletonema costaturn, which progressively replaced the dominant small forms of flagellates and some diatoms in late winter 1992 in the northern Adriatic.…”

Section: Discussionmentioning

confidence: 51%

“…Actually, during the warm season, when zooplankton feeding is more active, a significant buildup of pristane usually occurs. This compound is the primary hydrocarbon component of marine copepods throughout the season (Blumer et al 1964, Lee 1974, Saliot 1981, Serrazanetti et al 1994a. It occurs in high concentrations and prevails over heptadecane (Cl7) even when animals are starving (Blumer et al 1964).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Unusual changes of zooplankton fatty acid composition in the northern Adriatic during the 1991 mucilage event

Najdek¹

1997

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Fatty acids and pristane/heptadecane (Pr/C17) ratlo were analysed in zooplankton samples collected with a sediment trap in the northeastern Adriatic Sea from April 1991 to June 1992 in 2 to 6 wk intervals. Saturated (SAT; 22 to 68% of total fatty acid mass fraction), monounsaturated (MONO; 20 to 39"'0), and polyunsaturated (PUFA; 6 to 49%) fatty acid proportions, total fatty acid mass fraction (2.3 to 46.5 mg g-I dry wt), and Pr/CII ratio (0.5 to 27) varied significantly during the investigated period. Unusually low fatty acid mass fractions (2.3 to 5.1 mg g.' dry wt), PUFA proportions ( 6 % ) , and Pr/C17 ratio [ < l ) measured In summer 1991 were ascribed to a drastic zooplankton starvation due to a mucilage event, a phenomenon that can occur periodically (every 10 to 50 yr) in the region. Low PUFA proportions (12%) were also measured in winter/early spring 1992, but the C14:O and C16:l proportions, and Pr/C,, ratio (9 to 21) exhibited their highest values of the investigated period. This indicated more favourable feeding conditions and significant phytoplankton contributions in the zooplankton diets than in summer 1991. The highest total mass fraction (12.2 to 46.5 mg g-' dry wt) and PUFA proportions (30 to 49 %) were observed during spring and autumn, when the food supply was probably sufficient and diverse. The olelc acid (C18:lng) proportions (12 to 22%) in the northeastern Adriatic were higher than in other marine regions.

show abstract

Section: Discussionmentioning

confidence: 51%

Section: Discussionmentioning

confidence: 99%

Unusual changes of zooplankton fatty acid composition in the northern Adriatic during the 1991 mucilage event

Najdek¹

1997

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…More resistant to the microbial degradation, LABs have been widely used for monitoring sewage inputs [40,41]. They were detected in water [40,42], in river and marine sediments [43,44] and in marine organisms [39,45] and thus reflect the urban origin of at least part of the hydrocarbons found.…”

Section: Discussionmentioning

confidence: 99%

The Moroccan Mediterranean Coastline: A Potential Threatened by the Urban Discharges

Er-Raioui¹,

Khannous²,

Cheihk³

et al. 2012

TOEPTJ

View full text Add to dashboard Cite

“…For example, pristane, biosynthesized in the marine environment by zooplankton (20) and isolated in high quantities in the northern Adriatic Sea in the planktivorous fish Sardina pilchardus (21) and in zooplankton (22), was always found in very low percentages in the mollusc species analyzed here. The highest amount was found in S. vagina (5.1%), but in this species, like in all the others, it was present in concentrations lower than or close to that of phytane (7).…”

Section: Total Aliphatic Hydrocarbonsmentioning

confidence: 96%

“…In the present study we also isolated very small quantities of cw-3,6,9,12,15,18-heneicosahexaene (HEH), a hydrocarbon which, in zooplankton and in a teleost from the northern Adriatic Sea, had been found at percentages near 50% of the total hydrocarbons determined (27,22). The almost total absence of this 21:6 olefin is particularly significant in the case of the two filter-feeding molluscs which would be expected to have incorporated it from the several diatom species present in blooms that characterize the Adriatic Sea (23,24).…”

Section: Total Aliphatic Hydrocarbonsmentioning

confidence: 98%

Aliphatic Hydrocarbons, Linear Alkylbenzenes, and Highly Branched Isoprenoids in Molluscs of the Adriatic Sea, Italy

Serrazanetti¹,

Artusi²,

Pagnucco³

1997

ACS Symposium Series

Self Cite

View full text Add to dashboard Cite

Aliphatic hydrocarbons and linear alkylbenzenes (LABs) were determined in four species of molluscs of the Central Adriatic Sea: two bivalves, Mytilus galloprovincialis, Solen vagina and two gastropods, Patella vulgata, Cassidaria echinophora. The concentrations of total aliphatic hydrocarbons determined in the mollusc samples were between 35.0 and 68.1 μg g -1 dry wt, and they may be considered within normal limits for areas reported to be mildly polluted. In P. vulgata and in C. echinophora over 70% and 50%, respectively, of the total aliphatic hydrocarbons are represented by highly branched isoprenoids (HBIs). In M. galloprovincialis 30% is made up of squalene. These hydrocarbons are usually considered of recent biogenic origin, and in particular HBIs found in P. vulgata support previous suggestions that these alkenes might be considered molecular markers of the presence of some diatom species. LAB concentrations are between 3.2 and 15.9 μg g -1 dry wt and show that all four mollusc species are contaminated by these molecular tracers of domestic wastes. Based on their composition, the LABs appear to have been recently discharged into the marine environment. The high concentration of external isomers indicates that LABs have not been biodegraded. This is probably due to the fact that the wastes were not treated or were only partially treated prior to reaching the sampling area.Oil pollution in some coastal areas of the Mediterranean Sea is considered to be serious requiring specific studies on the sources, effects, and fate of fossil fuel compounds discharged in this environment (7). Research has been carried out to understand the origins of hydrocarbons. In particular, it is of interest to know whether the fossil hydrocarbons indicative of petroleum contamination are present along with recent biogenic hydrocarbons in order to understand what role these compounds 276

show abstract

Aliphatic hydrocarbons and linear alkylbenzenes in zooplankton from the Gulf of Trieste

Cited by 10 publications

References 17 publications

Unusual changes of zooplankton fatty acid composition in the northern Adriatic during the 1991 mucilage event

Unusual changes of zooplankton fatty acid composition in the northern Adriatic during the 1991 mucilage event

The Moroccan Mediterranean Coastline: A Potential Threatened by the Urban Discharges

Aliphatic Hydrocarbons, Linear Alkylbenzenes, and Highly Branched Isoprenoids in Molluscs of the Adriatic Sea, Italy

Contact Info

Product

Resources

About