Development of lipids during a spring plankton bloom in the northern North Sea

Kattner, Gerhard; Gercken, G.; Hammer, K. D.

doi:10.1016/0304-4203(83)90039-7

Cited by 67 publications

(59 citation statements)

References 14 publications

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“…T h s is in contrast to the results of Kattner et al (1983b) who found FFA and TG to be the major contributors during a spring bloom in the North Sea. The data in Table 1 and those given by Kattner et al (198313) are not directly comparable since Kattner et al measured only acyl lipids and only in terms of carbon. However, by using representative compounds (Parrish 1986), it is possible to estimate a total weight for each acyl lipid class.…”

Section: Spring Bloom: General Observationsmentioning

confidence: 77%

Time series of particulate and dissolved lipid classes during spring phytoplankton blooms in Bedford Basin, a marine inlet

Parrish¹

1987

Mar. Ecol. Prog. Ser.

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The Chromarod-Iatroscan TLC/FID system was used to measure h p~d classes in the dissolved and particulate fractions of seawater samples taken dunng spnng blooms In Bedford Basln, a small inlet in eastern Canada. Polar hpids were the major dissolved lipids present during the bloon~s. Dissolved l i p~d t~m e series indicate decreased phytoplankton exudation and increased bacterial uptake of lipid classes at the t~m e of the chlorophyll maximum. There is evidence to suggest algal uptake of dissolved phospholip~ds. T h~s polar l i p~d class may be used by autotrophs as a source of N and P when inorganic nutrient levels are depleted. The energy-rich storage component, triglyceride, became the major particulate lipid class from the time of the chlorophyll maximum onwards. Other particulate hpid classes present after the chlorophyll maxlmunl suggest that in addition to increased energy storage, there was a greater degree of degradahon of hplds and larger numbers of microheterotrophs.

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Section: Spring Bloom: General Observationsmentioning

confidence: 77%

Time series of particulate and dissolved lipid classes during spring phytoplankton blooms in Bedford Basin, a marine inlet

Parrish¹

1987

Mar. Ecol. Prog. Ser.

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“…In order to get information on the proportion of marine organic carbon we use the diatom-specific fatty acids cis-9-hexadecenoic acid (C 16:1(nÀ7) ), cis-11-hexadecenoic acid (C 16:1(nÀ5) ), and all-cis-5, 8,11,14,17-eicosapentaenoic acid (C 20:5(nÀ3) ) for interpretation (Kates and Volcani, 1966;Ackman et al, 1968;Kattner et al, 1983;Fahl and Kattner, 1993;Graeve et al, 1994). All fatty acid components up to carbon chain length of 22 were determined in this study, however, and the data are available on doi:10.1594/PANGAEA.602289.…”

Section: Methodsmentioning

confidence: 99%

Lithogenic and biogenic particle fluxes on the Lomonosov Ridge (central Arctic Ocean) and their relevance for sediment accumulation: Vertical vs. lateral transport

Fahl

Nöthig

2007

Deep Sea Research Part I: Oceanographic Research Papers

108

107

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Investigations of lithogenic and biogenic particle fluxes using long-term sediment traps are still very rare in the northern high latitudes and are restricted to the arctic marginal seas and sub-arctic regions. Here data on the variability of fluxes of lithogenic matter, CaCO 3 , opal, and organic carbon and biomarker composition from the central Arctic Ocean are presented for a 1-year period. The study was carried out on material obtained from a long-term mooring system equipped with two multi-sampling traps, at 150 and 1550 m depth, and deployed on the southern Lomonosov Ridge close to the Laptev Sea continental margin from September 1995 to August 1996. In addition, data from surface sediments were included in the study. Annual fluxes of lithogenic matter, CaCO 3 , opal, and particulate organic carbon were 3.9, 0.8, 2.6, and 1.5 g m À2 y À1 , respectively, in the shallow trap and 11.3, 0.5, 2.9, and 1.05 g m À2 y À1 , respectively, in the deep trap.Both the shallow and the deep trap showed significant variations in vertical flux over the year. Higher values were found from mid-July to the end of October (total mass flux of 75-130 mg m À2 d À1 in the shallow trap and 40-225 mg m À2 d À1 in the deep trap). During all other months, fluxes were fairly low in both traps (most total mass flux values o10 mg m À2 d À1 ). The interval of increased fluxes can be separated into (1) a mid-July/August maximum caused by increased primary production as documented in high abundances of marine biomarkers and diatoms and (2) a September/October maximum caused by increased influence of Lena River discharge indicated by maximum lithogenic flux and large amounts of terrigenous/fluvial biomarkers in both traps. During September/October, total mass fluxes in the deep trap were significantly higher than in the shallow trap, suggesting a lateral sediment flux at greater depth. The lithogenic flux data also support the importance of sediment input from the Laptev Sea for the sediment accumulation on the Lomonosov Ridge on geological time scales, as indicated in sedimentary records from this region. r

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“…This may suggest additional winter-feeding especially of the older stages (CV and females). 18:1(n¡9) is important in particulate matter (Kattner et al 1983) and used as a general marker for carnivorous and omnivorous feeding (Sargent and Henderson 1986;Falk-Petersen et al 1990;Graeve et al 1994bGraeve et al , 1997. It was also found in high amounts in Pseudocalanus spp.…”

Section: Pseudocalanus Minutusmentioning

confidence: 99%

Seasonal lipid dynamics of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) in the Arctic Kongsfjorden (Svalbard)

Lischka

Hagen

2006

Mar Biol

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Seasonal lipid dynamics of various developmental stages were investigated in Pseudocalanus minutus and Oithona similis. For P. minutus, the dominance of 16:1(n¡7), 16:4(n¡3) and 20:5(n¡3) fatty acids indicated a diatom-based nutrition in spring, whereas 22:6(n¡3), 16:0, 18:2(n¡6) and 18:1(n¡9) pointed to a Xagellate-based diet during the rest of the year as well as omnivorous/carnivorous low-level feeding during winter. The shorter-chain fatty alcohols 14:0 and 16:0 prevailed, also reXecting biosynthetic processes typical of omnivores or carnivores. Altogether, the lipid signatures characterized P. minutus as an opportunistic feeder. In contrast, O. similis had consistently high amounts of the 18:1(n¡9) fatty acid in all stages and during all seasons pointing to a generally omnivorous/carnivorous/detritivorous diet. Furthermore, the fatty alcohol 20:1(n¡9) reached high percentages especially in adult females and males, and feeding on Calanus faecal pellets is suggested. Fatty alcohols, as wax ester moieties, revealed signiWcant seasonal variations in O. similis and a seasonal trend towards wax ester accumulation in autumn in P. minutus. P. minutus utilized its lipid deposits for development in the copepodite stages III and IV and for gonad maturation in CV and females during the dark season. However, CVs and females depended on the spring phytoplankton bloom for Wnal maturation processes and reproduction. O. similis fueled gonad maturation and egg production for reproduction in June by wax esters, whereas reproduction in August/September cooccurred with the accumulation of new depot lipids. Both species revealed signiWcantly higher wax ester levels in deeper (>50 m) as compared to surface (0-50 m) dwelling individuals related to a descent prior to overwintering.

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Development of lipids during a spring plankton bloom in the northern North Sea

Cited by 67 publications

References 14 publications

Time series of particulate and dissolved lipid classes during spring phytoplankton blooms in Bedford Basin, a marine inlet

Time series of particulate and dissolved lipid classes during spring phytoplankton blooms in Bedford Basin, a marine inlet

Lithogenic and biogenic particle fluxes on the Lomonosov Ridge (central Arctic Ocean) and their relevance for sediment accumulation: Vertical vs. lateral transport

Seasonal lipid dynamics of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) in the Arctic Kongsfjorden (Svalbard)

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