Microphytoplankton in the Strait of Otranto (eastern Mediterranean)

Viličić, Damir; Leder, Nenad; Gržetić, Zvonko; Jasprica, Nenad

doi:10.1007/bf00349240

Cited by 33 publications

(12 citation statements)

References 20 publications

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“…Wind stress and along-coast currents regulate offshore cross-shelf transport of phytoplankton-rich waters (Martinez-Lopez and Zavala-Hidalgo 2009). We recorded relatively low concentrations of nutrients, similar to those recorded in October 2000 and April 2001 (Saracino and Rubino 2006) and in the Otranto Strait (Viličić et al 1995;Socal et al 1999). TIN/PO 4 molar ratio ranged from 39 to 1,389, with an average of 330, indicating phytoplankton growth limited by phosphorus at all stations (much more at offshore stations; Fig.…”

Section: Discussionsupporting

confidence: 56%

Phytoplankton distribution across the southeast Adriatic continental and shelf slope to the west of Albania (spring aspect)

Viličić

Šilović

Kuzmić

et al. 2010

Environ Monit Assess

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We present the first insight to the oceanography of the southeastern Adriatic Sea, where coastal water influenced by Albanian rivers comes into contact with the inflowing oligotrophic Eastern Adriatic Current (Ionian Surface Water and Levantine Intermediate Water). A distinct plankton distribution was observed on each side of the shelf break hydrographic boundary in May 2009, during gradual warming of the surface waters. The prochlorophytes accumulated along the nutricline above the shelf and continental slope. The phosphorus limited inshore waters were dominated by a small diatom Chaetoceros circinalis, dinoflagellates, cryptophytes, autotrophic picoplankton, and heterotrophic nanoplankton. The offshore surface layer was characterized by bigger nanoplankton (coccolithophorids, green flagellates). Low nutrient concentrations influence relatively low productivity not only above the Albanian shelf but also further to the north along the Montenegrine and Croatian coastal Adriatic Sea.

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Section: Discussionsupporting

confidence: 56%

Phytoplankton distribution across the southeast Adriatic continental and shelf slope to the west of Albania (spring aspect)

Viličić

Šilović

Kuzmić

et al. 2010

Environ Monit Assess

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“…The taxonomic composition of diatoms in the eastern Mediterranean basin and the southeastern Adriatic Sea has been defined by dominating genera, such as Chaetoceros, Pseudo-nitzschia, Proboscia, Rhizosolenia, Bacteriastrum, Cerataulina, Leptocylindrus, and Thalassionema (Kimor 1983, Kimor et al 1987, Vilič ić et al 1995. In comparison to this ''southeastern'' list, we located Chaetoceros socialis, which is much more abundant and frequent in the ''northeastern'' list (this paper).…”

Section: Discussionmentioning

confidence: 96%

Composition and annual cycle of phytoplankton assemblages in the northeastern Adriatic Sea

Viličić

Djakovac

Burić

et al. 2009

Botm

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Phytoplankton abundance and seasonality in the northeastern Adriatic Sea were directly related to the annual regime of the Po River discharge in the period , there was a shift in the timing of the annual Po River maximum discharge and of phytoplankton maxima from spring to autumn. In addition, the eastern coastal area was greatly influenced by oligotrophic karstic rivers and the Eastern Adriatic Current. Dominant phytoplankton taxa were defined on the basis of abundance and frequency of appearance. Such an approach may help in the comparison of phytoplankton communities within different environments. The dominant taxa were the diatoms Cerataulina pelagica, Chaetoceros socialis, Chaetoceros vixvisibilis and Pseudo-nitzschia spp., which appeared at maximum abundances )10 6 cells l -1 in more than 20% of samples. Among other phytoplankton, the most common was the coccolithophorid Emiliania huxleyi (maximum abundance of 2=10 5 cells l -1 in 50% of samples), and the dinoflagellate Prorocentrum minimum (maximum abundance of 3=10 5 cells l -1 in 12% of samples). The present state of the phytoplankton community may provide valuable information for evaluation of possible future environmental changes in the shallow Mediterranean ecosystem.

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“…), has widened the geographic range of the genus also to the Mediterranean Sea, where this species has been reported from the Tyrrhenian Sea (Rampi , as Oxytoxum margalefi and Oxytoxum tonolli ), including the Gulf of Naples (AZ and DS, unpublished data), and from the Spanish (Delgado and Fortuño , Margalef ) and Adriatic Sea coasts (Viličić et al. , Totti et al. ).…”

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confidence: 99%

A new potentially toxic Azadinium species (Dinophyceae) from the Mediterranean Sea, A. dexteroporum sp. nov.

Percopo

Siano

Rossi

et al. 2013

Journal of Phycology

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A new photosynthetic planktonic marine dinoflagellate, Azadinium dexteroporum sp. nov., is described from the Gulf of Naples (South Tyrrhenian Sea, Mediterranean Sea). The plate formula of the species, Po, cp, X, 4', 3a, 6″, 6C, 5?S, 6‴ and 2″″, is typical for this recently described genus. Azadinium dexteroporum is the smallest rep-resentative of the genus (8.5 μm average length, 6.2 μm average width) and shares the presence of a small antapical spine with the type species A. spinosum and with A. polongum. However, it differs from all other Azadinium species for the markedly asymmetrical Po plate and the position of the ventral pore, which is located at the right posterior end of the Po plate. Another peculiarity of A. dexteroporum is the pronounced concavity of the second intercalary plate (2a), which appears collapsed with respect to the other plates. Phylogenetic analyses based on the large subunit 28S rDNA (D1/D2) and the internal transcribed spacer (ITS rDNA) support the attribution of A. dexteroporum to the genus Azadinium and its separation from the other known species. LC/MS-TOF analysis shows that Azadinium dex-teroporum produces azaspiracids in low amounts. Some of them have the same molecular weight as known compounds such as azaspiracid-3 and -7 and Compound 3 from Amphidoma languida, as well as similar fragmentation patterns in some cases. This is the first finding of a species producing azapiracids in the Mediterranean Sea.

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Microphytoplankton in the Strait of Otranto (eastern Mediterranean)

Cited by 33 publications

References 20 publications

Phytoplankton distribution across the southeast Adriatic continental and shelf slope to the west of Albania (spring aspect)

Phytoplankton distribution across the southeast Adriatic continental and shelf slope to the west of Albania (spring aspect)

Composition and annual cycle of phytoplankton assemblages in the northeastern Adriatic Sea

A new potentially toxic Azadinium species (Dinophyceae) from the Mediterranean Sea, A. dexteroporum sp. nov.

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