2009
DOI: 10.2989/ajms.2009.31.1.9.780
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Primary production in the Benguela ecosystem, 1999–2002

Abstract: Phytoplankton production was investigated throughout the whole Benguela ecosystem in winter 1999 and in summer 2002 during two four-week research cruises from Cape Town, South Africa, through Namibian waters to Namibe in southern Angola. Primary production ranged from 0.14-2.26 g C m -2 d -1 during June-July 1999 and from 0.39-8.83 g C m -2 d -1 during February-March 2002. Mean productivity values indicated that the Benguela ecosystem was twice as productive in summer than in winter. In 1999, most of the produ… Show more

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Cited by 35 publications
(13 citation statements)
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“…2) due to the biomass temporal changes observed in EBUS (Gutknecht et al, 2013). In our modeling experiment, the Namibian system appears to be twice more productive in summer than in winter, in agreement with Barlow et al (2009) who described the same seasonal cycle. Annual primary production simulated by the coupled model is 5 ± 0.05 × 10 2 g C m −2 yr −1 , in the range of previous estimates made in the BUS: 3.7 × 10 2 to 9.5 × 10 2 g C m −2 yr −1 (Brown et al, 1991;Ware, 1992;Carr, 2002;Tilstone et al, 2009) (Table 1).…”
Section: Chlorophyll a And Primary Productionsupporting
confidence: 89%
“…2) due to the biomass temporal changes observed in EBUS (Gutknecht et al, 2013). In our modeling experiment, the Namibian system appears to be twice more productive in summer than in winter, in agreement with Barlow et al (2009) who described the same seasonal cycle. Annual primary production simulated by the coupled model is 5 ± 0.05 × 10 2 g C m −2 yr −1 , in the range of previous estimates made in the BUS: 3.7 × 10 2 to 9.5 × 10 2 g C m −2 yr −1 (Brown et al, 1991;Ware, 1992;Carr, 2002;Tilstone et al, 2009) (Table 1).…”
Section: Chlorophyll a And Primary Productionsupporting
confidence: 89%
“…In our modeling experiment, following the seasonal cycle of Chl a (see above), the Namibian system appears to be twice as productive in austral summer (up to 2.3 g C m −2 d −1 near the coast) than in austral winter (up to 1.2 g C m −2 d −1 ). Along the Namibian coast, Barlow et al (2009) describe this same seasonal cycle, but the total primary production is much higher: between 0.39 and 8.83 g C m −2 d −1 during the period of February-March 2002, and between 0.14 and 2.26 g C m −2 d −1 during the period of June-July 1999, with important spatial variations. However, the 8 yr mean of simulated primary production is in agreement with satellite estimations (Table 4).…”
Section: Chlorophyll a And Primary Productionmentioning
confidence: 84%
“…The simulated total primary production is now compared with the BENEFIT data from Barlow et al (2009) (Table 4). In our modeling experiment, following the seasonal cycle of Chl a (see above), the Namibian system appears to be twice as productive in austral summer (up to 2.3 g C m −2 d −1 near the coast) than in austral winter (up to 1.2 g C m −2 d −1 ).…”
Section: Chlorophyll a And Primary Productionmentioning
confidence: 99%
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“…Past attempts to estimate phytoplankton and bacterioplankton biomass and production in the BCLME include various in situ studies, such as those by Barlow (1982a, b, c), Barlow et al (2009), Brown (1984, Field (1985, 1986), Brown and Hutchings (1987a,b), Brown et al (1991), Cushing (1971), Estrada and Marrasé (1987), Lamont et al (2014), Lucas et al (1987), Mitchell-Innes and Walker (1991), Mitchell-Innes et al (2000, Painting et al (1989), Shannon and Field (1985), Shannon and Pillar (1986), Verheye-Dua and Lucas (1988), Waldron and Probyn (1992), and Wasmund et al (2005). However, compared with other EBUSs, these investigations have been relatively infrequent and limited in area, and more data are available for the southern than the northern Benguela.…”
Section: Phytoplankton Biomass and Primary Productionmentioning
confidence: 99%