Dictyocha octonaria

From Black Sea Phytoplankton checklist

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Dictyocha octonaria (Ehr.)

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

Classification

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

WoRMS: 341584

Properties

Environment: marine

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

Occurrence

	References
Black Sea	Bryantseva Yu., 2000; Georgieva L.V., 1979 (Bosphorus area)
Bulgaria	Konsulov A., 1998
Geogria
Romania	Boicenco L. Updated list from Bodeanu N., 1987-88
Russia
Turkey	Ozturk B., 1998; Eker E., 1998
Ukraine	Senichkina L.G., 1983 (NW); Senichkina L.G. et al., 2001; Ivanov A.I. 1959; Ivanov A.I. 1960;

Volume and surface area calculation

	Shape
Simple shape	half sphere
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)

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	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

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	x ⁸																x ²⁴					x ³⁴			x ³⁸

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 ⁸⁹	x ⁹²

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; 89 - as Distephanus speculum var. octonarius; 92 - as Distephanus speculum var. octonarius;

References

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

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.

Ozturk B., 1998. Black Sea Biological Diversity, Turkey. Black Sea Environmental Series, Vol. 9, United Nations Publication, New York, 144 pp.

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

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

Source of synonyms: Г.В.Коновалова. Планктонная флора прибрежных вод восточной Камчатки. Жгутиковые водоросли. II (Институт биологии моря ДВО РАН) http://www.terrakamchatka.org/publications/trudy/trudy6/1.htm

ToDo: Ivanov A.I. 1959 and Ivanov A.I. 1960 contains Distephanus speculum var. octonarius, but Ivanov A.I. 1965 doesn't contain, although Ivanov A.I. 1965 based on Ivanov A.I. 1959 and Ivanov A.I. 1960. Check!!!