Black Sea Phytoplankton checklist

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Chaetoceros heterovalvatus

From Black Sea Phytoplankton checklist

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Chaetoceros heterovalvatus Prosckina-Lavrenko



Classification

Chromista (Kingdom) > Bacillariophyta (Phylum) > Mediophyceae (Class) > Chaetocerotales (Order) > Chaetocerotaceae (Family) > Chaetoceros (Genus)


Original description (Proshkina-Lavrenko A.I., 1953):

Chaetoceros heterovalvatus Pr.-Lavr. sp. nova. (Pic. 1).

Descriptio. Cellulae cyliadricae, solitariae, inteidum, post divisionem binae singulariter quaternae, 12.5 — 20 µ ante divisionem ad 35 µ. altae. Valvae orbiculares. superior convexa, inferior concava, 5—8.75 in diametro. Setutae a valvae marginibus abeun tea; swperiores basi deorsum subincurvatae, mox axin cellulae perpendiculariter intensae, inferiores sub anulo acuto divergentes. Chromatophorie orbiculares discoidei 2—10. Sporae modo peculiari formatae. Ad sporas oriundas cellula altior fit protoplast rotundatur et per foramen in zona connectivali dispositum vesicae modo exit, sed a foramine non abrumpitur. In vesica statim spora fromatur. Valva sporae primaria regulariter convexa, verrucosa, marginae annulo punctato instructa. Valva secundaria media subconvexa, laevis.

Habitatio. In regione boreali-occidentali maris Nigri a limine fluminum Dnepr et Bug ad occasum 21 VIII et 10 IX 1951, in ostio flu-minis Bug et in limine Dnepr et Bug in V 1951 et VII 1951 et 1952 anno.


Properties

Environment: brackish, euryhaline
Habitat: neritic
Biogeographic group: warmwater


Occurrence

  References
Black Sea Proshkina-Lavrenko A.I., 1955; Ivanov A.I., 1965; Georgieva L.V., 1979 (Bosphorus area); Proshkina-Lavrenko A.I., 1953
Bulgaria S. Moncheva(IO-BAS), 2010
Geogria
Romania Petranu A., 1997; Boicenco L. Updated list from Bodeanu N., 1987-88
Russia
Turkey
Ukraine Zaitsev Y.P. & B.G. Alexandrov, 1998; Dereziuk, N., 2008; Nesterova D.A., Terenko L.M., Terenko G.V., 2006 (NW)


Cell volume

Minimum Average Maximum Database
1 Cell volumes of phytoplankton of the Black Sea A.S.Mikaelyan, L.G.Senichkina, L.A.Pautova, L.V.Georgieva, V.Dyakonov
2 Bryantseva Yu., 2000. Changes in structural characteristic of phytoplankton in the Black Sea
3 75.4 2155.1 Dereziuk, N., 2008. List of Phytoplankton Species Observed in the Water Area near the Zmiinyi Island in 2004-2007
4 Bryantseva Yu., 2010. Sevastopol Bay phytoplankton monitoring database 2008 -2009
5 Сеничкина Л.Г., 1983. Фитопланктон северо-западной части Черного моря в зимний период 1979.
6 Нестерова Д. А., 2003. Фитопланктон западной части Черного моря в летний период 1987.

* (volumes are in cubic microns), values extracted from database


Volume and surface area calculation

Shape
Simple shape ell. cylinder
K(flattening factor) 0.6
More accurate shape -

Hillebrand et al., 1999 - elliptic prism
(Elevations or extensions (very robust setae, conical apical elevations) should be added separately as cylinders or cones; Some species are round in valve view and can be calculated as cylinders)
 (Hillebrand, H., Dürselen, C. D., Kirschtel, D., Pollingher, D. and Zohary, T. (1999) Biovolume calculation for pelagic and benthic microalgae. J. Phycol., 35, 403–424)

Images


Appearance in checklists

 1886
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List based on literature analysis
List extracted from database
List extracted from published paper, which is based on monitoring(scientific) research of scientist(s) and includes analysis of real collected data
Personal list, based on monitoring(scientific research) of scientist (not published as article)
Identification book

Last revision on 20-05-2013

Personal tools

The Commission on the Protection of the Black Sea Against Pollution
http://www.blacksea-commission.org/


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Black sea SCENE project