Octactis octonaria

From Black Sea Phytoplankton checklist

Octactis octonaria (Ehrenberg) Hovasse, 1946

= Distephanus speculum var. octonarius (Ehrenberg) Jörgensen 1899; Distephanus octonarius (Ehr.) Deflandre, 1932; Dictyocha octonaria Ehrenberg, 1844 (mentioned for the Black Sea)

Classification

Chromista (Kingdom) > Ochrophyta (Phylum) > Dictyochophyceae (Class) > Dictyochales (Order) > Dictyochaceae (Family) > Octactis (Genus)

WoRMS: 375970

First record for the Black Sea

The species was reported first time for the Black Sea :
year - 1998
found by - Senichkina L.G., 1998
reference - Senichkina L.G. et al., 2001
(for Dictyocha octonaria)

Properties

Environment: marine

Occurrence

	References
Black Sea	Mikaelyan A.S. et al., 2008; Bryantseva Yu., 2000; Georgieva L.V., 1979 (Bosphorus area)
Bulgaria	S. Moncheva(IO-BAS), 2010, Konsulov A., 1998
Geogria
Romania	Boicenco L. Updated list from Bodeanu N., 1987-88
Russia	Yasakova O. N., 2013 (Novorossiysk bay)
Turkey	M.Turkoglu, T.Koray, 2002; Baytut O., Gonulol A., Koray T., 2010; Ozturk B., 1998; Eker E., 1998; Gülnur Özdemyr, Orhan Ak, 2012
Ukraine	Polikarpov I.G. et al., 2003; Senicheva M.I., 2008(Sevastopol Bay, Sevastopol coastal zone, Laspi Bay, Karadag); Manzhos L.A., 2008 (Feodosia Bay); Senichkina L.G., 1983 (NW); Senichkina L.G. et al., 2001; Ivanov A.I. 1959; Ivanov A.I. 1960; Senichkina L. G., 1973; Senicheva M. I., 1971

Cell volume

	Minimum	Average	Maximum	Database
1	598	5112,2	32000	Cell volumes of phytoplankton of the Black Sea A.S.Mikaelyan, L.G.Senichkina, L.A.Pautova, L.V.Georgieva, V.Dyakonov
2	2787.6	4267.3	5747	Bryantseva Yu., 2000. Changes in structural characteristic of phytoplankton in the Black Sea
3				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		1616		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
K(flattening factor)
More accurate shape	-

Hillebrand et al., 1999 - sphere (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)

Appearance in checklists

1886

1900

1950

2000

2010

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	33	34	35	36	38	49	54	55	56	57
		x			x ⁶	x ⁷	x ⁸		x		x												x ²⁴	x				x ³⁴			x ³⁸					x

58	63	67	68	72	73	74	75	77	78	84	85	86	87	88	89	92	93	94	99	100	101	102	103	105	108	109	110	116	117	118	119	120	123	125
	x ⁶³								x ⁷⁸						x ⁸⁹	x ⁹²			x									x ¹¹⁶						x

6 - as Dictyocha octonaria; 7 - as Dictyocha octonaria; 8 - as Distephanus speculum var. octonarius; 24 - as Distephanus octonarius; 34 - as Distephanus speculum var. octonarius; 38 - as Distephanus speculum var. octonarius; 63 - as Distephanus octonarius; 78 - as Distephanus octonarius var. octonarius; 89 - as Distephanus speculum var. octonarius; 92 - as Distephanus speculum var. octonarius; 116 - as Distephanus octonarius var. octonarius;

References

Baytut O., Gonulol A., Koray T., 2010. Temporal variations of phytoplankton in relation to eutrophication in Samsun bay, southern Black Sea. Turk. J. Fish. Aquat. Sc.(10): 363-372.

Boicenco L. Updated list from Bodeanu N., 1987-1988. Structure et dynamique de l'algoflore unicellulaire dans les eaux du littoral Roumain de la Mer Noire. Research Marines(20/21): 19-250.^*
* - as also Distephanus speculum var. octonarius

Bryantseva_Yu.,_2000. Variability of the Black Sea phytoplankton structural characteristics. PhD thesis, Institute of Biology of the Southern Seas, NASU.^*
* - as Distephanus speculum var. octonarius

Eker, E. 1998. Abundance and biomass of micro and nanophytoplankton in the northwestern and southern Black Sea in 1995. Master thesis, Middle East Technical University, IMS.^*
* - as Distephanus speculum var. octonarius

Georgieva L.V., 1979. Phytoplankton of straits and nearest waters of Mediterranean basin (Фитопланктон проливов и прилежащих вод Средиземноморского бассейна). PhD thesis, Institute of Biology of the Southern Seas, NASU, Sevastopol, Ukraine.^*
* - as Distephanus speculum var. octonarius

Gülnur Özdemyr, Orhan Ak, 2012. Qualitative and quantitative changes of phytoplankton in the South East Black sea (Trabzon coasts). Yunus Arastýrma Bülteni(4): 13 - 25

Ivanov A. I., 1959. About phytoplankton mass development in the Northern-Western part of the Black Sea in 1954 - 1956. Proceedings of Odessa Biological Station(1): 6 - 33.^*
* - as Distephanus speculum var. octonarius

Ivanov A. I., 1960. Characteristics of qualitative composition and quantitative distribution of phytoplankton in the north-western Black Sea. Transactions of the hydrobiological society of the USSR, Vol. X: 182 - 196.^*
* - as Distephanus speculum var. octonarius

Konsulov A., 1998. Black Sea Biological Diversity, Bulgaria. Black Sea Environmental Series, Vol. 5, United Nations Publication, New York, 131 pp.^*
* - as Dictyocha octonaria

Manzhos L.A., 2008. Abundance and distribution of phytoplankton in the Feodosia coastal waters in December 2006. Ecologija morja(75): 16-22.

Mikaelyan_A.S._et_al.,_2008. Cell volumes of phytoplankton of the Black Sea. Database.

S._Moncheva(IO-BAS),_2010. Species lists based on sampling identifications and literature. Personal list. Bulgarian waters.

Ozturk B., 1998. Black Sea Biological Diversity, Turkey. Black Sea Environmental Series, Vol. 9, United Nations Publication, New York, 144 pp.^*
* - as Dictyocha octonaria

Polikarpov_I.G._et_al.,_2003. Microplankton biological diversity in the Black Sea coastal zone near Sevastopol (2001-2003). In Eremeev V.N., Gaevskaya A.V. (ed.): Modern condition of biological diversity in near-shore zone of Crimea (the Black sea sector), Ekosi-Gidrophizika, Sevastopol, Ch. 1: 16-42.

Senicheva M. I., 1971. Composition and quantitative development of phytoplankton of neritic zone in. Sevastopol area during autumn-winter 1968-1969. Biologia moria(24): 3-12.^*
* - as Distephanus octonarius var. octonarius

Senicheva M.I., 2008. Species diversity, seasonal and annual variability of plankton microalgae near Crimea coast. In: The Black Sea microalgae: problems of biodiversity preservation and biotechnological usage, publisher, address, Ch. I: 5-18.

Senichkina L. G., 1973. Phytoplankton of the clear and contaminated by wastewater waters near Yalta. Biology of the sea(28): 135 - 150.^*
* - as Distephanus octonarius var. octonarius

Senichkina L.G., 1983. Phytoplankton of north-western part of the Black Sea during winter period. In: Seasonal changes of the Black Sea phytoplankton, Nauka, M.: 55 - 65.^*
* - as Distephanus octonarius

Senichkina L.G. et al., 2001. Species diversity of Black Sea phytoplankton in the southeastern coast of Crimea. Karadag: History, biology, archaeology. In: Collection of papers dedicated to 85th anniversary of Karadag Scientific Station, Sonat, Simferopol: 119-125.^*
* - as Distephanus octonarius

M.Turkoglu,_T.Koray,_2002. Phytoplankton species succession and nutrients in the Southern Black Sea (Bay of Sinop). Turkish Journal of Botany(26): 235–252.

Yasakova_O._N.,_2013. The annual dynamics of the phytoplankton in the Novorossiysk bay in 2007 Marine ecological journal, Vol. 12(1): 92 - 102.

Zaitsev_Y._P._&_B._G._Alexandrov,_1998. Black Sea Biological Diversity, Ukraine. Black Sea Environmental Series, Vol. 7, United Nations Publication, New York, 351 pp.^*
* - as Distephanus speculum var. octonarius

	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