Interrelationships among primary production, chlorophyll, and environmental conditions in frontal regions of the western Mediterranean Sea

Lohrenz, Steven E.; Wiesenburg, Denis A.; DePalma, I P; Johnson, Kenneth S.; Gustafson, Daniel E.

doi:10.1016/0198-0149(88)90031-3

Cited by 92 publications

(49 citation statements)

References 55 publications

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“…Interestingly, estimates obtained in spring in other studies reflect the same spatial pattern and are within the same ranges as those shown by Moutin and Raimbault (2002) (Table 1). Comparably high values (up to 1.7 g C m −2 d −1 ) were reported in the Catalan front area in March , and in the Alboran Sea in May-June (Lohrenz et al, 1988). At the DY-FAMED station in the Ligurian Sea, primary production rates were 240-716 mg C m −2 (over a 14 h incubation) (Vidussi et al, 2001) but reached values as high as 1.8 g C m −2 d −1 in April .…”

Section: Biomass and Primary Productionmentioning

confidence: 72%

“…Among other algal groups, the silicoflagellates Dictyocha and Distephanus are also a constant although scarce component of offshore MS microplankton, their abundance reaching the highest values in surface waters in winter (Totti et al, 2000) or in deeper waters in spring-summer (Lohrenz et al, 1988;Estrada et al, 1993). In addition, a few other flagellates that can form large colonies are also part of the offshore microplankton at least in some phases of their life cycle.…”

Section: Other Microplankton Speciesmentioning

confidence: 99%

“…One such case is Oxytoxum spp. reaching 12% of total cell counts in the Alboran Sea (Lohrenz et al, 1988). Indeed, as for diatoms, the larger-sized species are not sampled properly most of the time, but their role can be significant despite their low abundances.…”

Section: Other Microplankton Speciesmentioning

confidence: 99%

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Plankton in the open Mediterranean Sea: a review

et al. 2010

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Abstract. We present an overview of the plankton studies conducted during the last 25 years in the epipelagic offshore waters of the Mediterranean Sea. This quasi-enclosed sea is characterized by a rich and complex physical dynamics with distinctive traits, especially in regard to the thermohaline circulation. Recent investigations have basically confirmed the long-recognised oligotrophic nature of this sea, which increases along both the west-east and the north-south directions. Nutrient availability is low, especially for phosphorous (N:P up to 60), though this limitation may be buffered by inputs from highly populated coasts and from the atmosphere. Phytoplankton biomass, as chl a, generally displays low values (less than 0.2 µg chl a l −1 ) over large areas, with a modest late winter increase. A large bloom (up to 3 µg l −1 ) is observed throughout the late winter and spring exclusively in the NW area. Relatively high biomass values are recorded in fronts and cyclonic gyres. A deep chlorophyll maximum is a permanent feature for the whole basin, except during the late winter mixing. It is found at increasingly greater depths ranging from 30 m in the Alboran Sea to 120 m in the easternmost Levantine basin. Primary production reveals a west-east decreasing trend and ranges between 59 and 150 g C m −2 y −1 (in situ measurements). Overall, the basin is largely dominated by small autotrophs, microheterotrophs and egg-carrying copepod species. The microorganisms (phytoplankton, viruses, bacteria, flagellates and ciliates) and zooplankton components reveal a considerable diversity and

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Section: Biomass and Primary Productionmentioning

confidence: 72%

Section: Other Microplankton Speciesmentioning

confidence: 99%

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Plankton in the open Mediterranean Sea: a review

et al. 2010

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“…Diatom and nanoplankton abundance, chlorophyll content and primary production have been observed to be higher in the jet, either from satellite data (Arnone and La Violette, 1986;Lohrenz et al, 1988;Arnone et al, 1990) or in-situ shipboard data (Prieur et al, 1993;Videau et al, 1994;Fiala et al, 1994). This suggests that the frontal-jet system exhibits a fertilising effect on the otherwise oligotrophic waters of the Alboran Sea.…”

Section: Introductionmentioning

confidence: 79%

“…Frontal enhancement of phytoplankton populations has been observed at the AlmeriaOran front (Lohrenz et al, 1988;Prieur and Sournia, 1994;Videau et al, 1994;Fiala et al, 1994). Diatom and nanoplankton abundance, chlorophyll content and primary production have been observed to be higher in the jet, either from satellite data (Arnone and La Violette, 1986;Lohrenz et al, 1988;Arnone et al, 1990) or in-situ shipboard data (Prieur et al, 1993;Videau et al, 1994;Fiala et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

Mesoscale subduction at the Almeria–Oran front

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et al. 2001

Journal of Marine Systems

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Modeling the impact of tidal flows on the biological productivity of the Alboran Sea

et al. 2015

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The control of phytoplankton production by tidal forcing in the Alboran Sea is investigated with a high‐resolution ocean circulation model coupled to an ecosystem model. The aim of the modeling efforts was to elucidate the role of tides in sustaining the high biological productivity of the Alboran Sea, as compared with the rest of the Mediterranean subbasins. It is shown that tidal forcing accounts for an increase of phytoplankton biomass and primary productivity in the basin of about 40% with respect to a nontidal circulation, and about 60% in the western Alboran Sea alone. The tidal dynamics of the Strait of Gibraltar is shown to be the primary factor in determining the enhancement of productivity, pumping nutrients from depth to the photic zone in the Alboran Sea. Model results indicate that the biological implications of the propagating internal tides are small. These results imply that nutrient transports through the Strait of Gibraltar have to be parametrized in ocean models that do not resolve tides in order to properly represent the biochemical budgets of the Alboran Sea.

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Interrelationships among primary production, chlorophyll, and environmental conditions in frontal regions of the western Mediterranean Sea

Cited by 92 publications

References 55 publications

Plankton in the open Mediterranean Sea: a review

Plankton in the open Mediterranean Sea: a review

Mesoscale subduction at the Almeria–Oran front

Modeling the impact of tidal flows on the biological productivity of the Alboran Sea

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