The composition of particulate organic matter and biomass in the Peruvian upwelling region during ICANE 1977 (Nov. 14 - Dec. 2)

Hendrikson, P.; Sellner, Kevin G.; Mendiola, Blanca Rojas de; Ochoa, Noemí; Zimmermann, R.

doi:10.1093/plankt/4.1.163

Cited by 14 publications

(3 citation statements)

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“…These values occasionally excccd the maximum expected values predicted from Eppley's (1972) exponential equation relating temperature to growth rates. Similar doublings per day (2.23 for Nitzschia closterium, using cell numbers) are reported for the Peruvian upwelling system (Hendrikson et al 1982). The estimates converted to carbon are higher than those obtained by the 14C method due to the possible inclusion of nonphotosynthetic growth and nonliving material in the Coulter counter method or possibly due to underestimation with the 14C method.…”

Section: Discussionsupporting

confidence: 71%

Volumetric estimates of phytoplankton production in newly upwelled waters of the southern Benguela Current1

Olivieri¹,

Hutchings²

1987

Limnology & Oceanography

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Production, in terms of volume of particulate matter, was studied in four developing phytoplankton communities in newly upwelled waters of the southern Benguela Current. Growth (max doublings d-' -2.9, max C production -21 g m-2 d-l) of phytoplankton upwellcd from source water was rapid, with little evidence of a lag phase. The growth pattern differed for each community encountered and was related to the rate of mixing of the water column and the nutrient and light regimes. Production rates were highest in newly upwelled waters and lowest under limiting light and during periods of nitrate depletion in the upper mixed layer. Changes in growth rates were also attributed to short-term wind variations that caused water bodies to mix and change the nutrient regimes.Growth occurred over a wide size range of particles, mostly in the range 20-80-pm equivalent spherical diameters (ESD), corresponding to chains of diatoms, but occasionally also in the range of 6-l 4-pm ESD, suggesting some growth of small-celled algae and microflagellates. A diel variation was observed, with volume increases during the day greatly exceeding those at night except under extreme limiting conditions when thcrc was some growth in the dark.

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Section: Discussionsupporting

confidence: 71%

Volumetric estimates of phytoplankton production in newly upwelled waters of the southern Benguela Current1

Olivieri¹,

Hutchings²

1987

Limnology & Oceanography

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“…Our data for the biochemical composition of POM are in agreement with the mean values for the data summarised in Table 7. The data of Takahashi et al (1985) were calculated from CHEMICAL COMPOSITION OF PHYTOPLANKTON AND POM 267 Hendrickson et al (1982) is almost identical in terms of percentage values as recorded in this study for POM. It is equally interesting to note that the Cbh/Lip ratios obtained in both studies are similar.…”

Section: Discussionsupporting

confidence: 66%

Untitled

Rı́os¹,

Fraga²,

Pérez³

et al. 1998

Sci. Mar.

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SUMMARY: Elemental (C, H, O, N, Si, P) and biochemical composition (proteins, carbohydrates, lipids, phosphorus compounds, chlorophyll and opal) in particulate organic matter, diatoms, other autotrophs, heterotrophs and detritus from natural plankton were established simultaneously by measuring relatively few components. Using standard techniques in marine chemistry on board ship, it is possible to infer a great deal about the composition and condition of the plankton. In addition, the organic matter content in terms of cell volume was determined for each group of plankton. Variation of chemical composition with depth was also considered. The ratio carbohydrates/lipids (Cbh/Lip) was used as an indicator of the chemical quality of the plankton.

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“…The values corresponding to the biochemical composition obtained by Nival et al (1976), Smetacek et al (1979), , and Shaffer (1996) are surrounding the mean value (point in Fig 1). Near this point are the values obtained from Lancelot-Van Beveren (1980), Hendrikson et al (1982), Tanoue (1985) and Ríos and Fraga (1987). Biochemical composition with lipids proportions higher than 50% (Fernández et al, 1992;Robins et al, 1994) correspond to the North Atlantic and Antarctic phytoplankton.…”

Section: Discussionmentioning

confidence: 85%