Variability in the Hydrographic and Biological Features of the Gulf of Naples

Carrada, Gian Carlo; Hopkins, Thomas S.; Bonaduce, G.; Ianora, Adrianna; Marino, Donato; Modigh, M.; Ribera, D'Alcalà M.; Scotto, Carlo B. di

doi:10.1111/j.1439-0485.1980.tb00213.x

Cited by 61 publications

(31 citation statements)

References 5 publications

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“…In the southeastern part of the Gulf of Thermaikos zooplankton abundance was generally low and resembled that observed just outside of the Gulf of Fos (Benon et al 1977), in the Gulf of Naples (Carrada et al 1980) and in the outer Gulf of Saronikos, Greece (Moraitou-Apostolopoulou & Ignatiades 1980). Intermediate values were recorded for the central part of the study area.…”

Section: Discussionsupporting

confidence: 61%

Differentiation of zooplankton populations in a polluted area

Siokou-Frangou¹,

Papathanassiou²

1991

Mar. Ecol. Prog. Ser.

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Zooplankton composition and spatial distribution were studied in The Gulf of Thermaikos (Aegean Sea, Greece), a shallow, semi-closed area which is subjected to urban and industrial pollution and receives freshwater from 4 large rivers. These features, combined with the hydrology of the Gulf, influence the zooplankton, which is characterized by spatial differentiation depending upon the time of year (December, May and September). Within the northern part of the Gulf, where there is considerable waste discharge, zooplankton is abundant and communities are characterized by dominance of opportunistic species. In contrast, the eastern region is strongly influenced by incoming water masses from the Aegean Sea and zooplankton communities presented a much more diversified and stable situation. The pattern of zooplankton distribution off the river deltas 1s more complex and depends greatly on season.The differentiation of the zooplankton comniunlties was quantified using non-metric multidimensional scaling and graphical descriptors.

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Section: Discussionsupporting

confidence: 61%

Differentiation of zooplankton populations in a polluted area

Siokou-Frangou¹,

Papathanassiou²

1991

Mar. Ecol. Prog. Ser.

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“…The importance of Mediterranean circulation dynamics in the determination of different zooplankton associations was also found in the Gulf of Trieste (Cataletto, 1995) and in the Gulf of Naples (Carrada et al, 1980). Water masses and marine circulation of the whole Mediterranean Sea, and particularly of the Ligurian Basin, underwent major changes over the three years of the study.…”

Section: Discussionmentioning

confidence: 88%

Temporal variations of zooplankton biomass in the Ligurian Sea inferred from long time series of ADCP data

Bozzano

Fanelli²,

Pensieri

et al. 2014

Ocean Sci.

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Abstract. Three years of 300 kHz acoustic doppler current profiler data collected in the central Ligurian Sea are analysed to investigate the variability of the zooplankton biomass and the diel vertical migration in the upper thermocline. After a pre-processing phase aimed at avoiding the slant range attenuation, hourly volume backscattering strength time series are obtained. Despite the lack of concurrent net samples collection, different migration patterns are identified and their temporal variability examined by means of time-frequency analysis. The effect of changes in the environmental condition is also investigated. The highest zooplankton biomasses are observed in April-May just after the peak of surface primary production in March-April. The main migration pattern found here points to a "nocturnal" migration, with zooplankton organisms occurring deeper in the water column during the day and shallower at night. Also, twilight migration is highlighted during this study. The largest migrations are recorded in November-December, corresponding to lowest backscattering strength values and they are likely attributable to larger and more active organisms (i.e. euphausiids and mesopelagic fish). The results suggest further applications of the available historical acoustic doppler current profiler time series.

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“…Stn MC is influenced both by coastal waters and by the frequent flushing of oligotrophic Tyrrhennian waters, although no stable frontal structure has been observed in the Gulf of Naples between the 2 water masses (Carrada et al 1980. Precipitation mainly occurs in early spring and in late autumn, with an annual mean of 800 mm m -2 yr -1 ; coastal waters expand out to the study site, as indicated by lower salinity values, after periods of rain.…”

Section: Methodsmentioning

confidence: 99%

Seasonal variations of photosynthetic ciliates at a Mediterranean coastal site

Modigh¹

2001

Aquat. Microb. Ecol.

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Variability in the Hydrographic and Biological Features of the Gulf of Naples

Cited by 61 publications

References 5 publications

Differentiation of zooplankton populations in a polluted area

Differentiation of zooplankton populations in a polluted area

Temporal variations of zooplankton biomass in the Ligurian Sea inferred from long time series of ADCP data

Seasonal variations of photosynthetic ciliates at a Mediterranean coastal site

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