Characteristics of zebra mussel (<i>Dreissena polymorpha</i>) populations in infested reservoirs, northwest Bulgaria

Trichkova, Teodora; Kozuharov, D.; Hubenov, Zdravko; Botev, Ivan; Živkov, Mladen; Cheshmedjiev, Svetoslav

doi:10.1080/00222930701835589

Cited by 9 publications

(15 citation statements)

References 21 publications

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“…À D. polymorpha was found in the reservoirs Ogosta, Rabisha, Zhrebchevo and Ovcharitsa; and D. r. bugensis in the Ogosta Reservoir. [7,8,14] In the Kovachitsa Reservoir empty shells were recorded, while in the Poletkovtsi Reservoir no adult mussels or shells were found. [8,14] The plankton samples were collected in different seasons, from February to October, within the years 2009À2013 (Table 1).…”

Section: Methodsmentioning

confidence: 99%

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Dynamics ofDreissenaspp. veliger larvae in some Bulgarian reservoirs

Stanachkova

Kozuharov

Zlatanova

et al. 2015

Biotechnology & Biotechnological Equipment

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Two invasive mussels from the genus Dreissena occur in Bulgarian inland waters À Dreissena polymorpha and Dreissena rostriformis bugensis. They are well known invasive species, but there is lack of information about the presence, quantitative parameters and distribution of their larvae. We present the first data that concern the veliger larvae dynamics in Bulgarian inland waters, with several infested reservoirs being studied within the period 2009À2012. The present study was designed to determine their distribution, density and seasonal dynamics. Veliger larvae were found in all of the studied reservoirs. Their abundance was in the range from 166 individuals per cubic meter (ind m ¡3) to 28,400 ind m ¡3 in different seasons and reservoirs. The presence of veliger larvae was detected in the plankton also during the winter: February 2011 (3.7 C) and March 2012 at temperature 7.5 C. The maximum abundance of larvae was found at 26 C. The variation among annual data, which was observed in our study implied that further regular and long-term studies of the early life stages of the Dreissena mussels is required in order to monitor the dynamics of these species in the inland waters of Bulgaria.

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Section: Methodsmentioning

confidence: 99%

“…It was also reported as heavily infested by zebra mussel. [7,14] Temperature is a key factor for the increasing veliger larvae abundance in Rabisha in the studied period ( Figure 5(a)). A decrease of the veliger larvae density was observed compared to previous studies [10,11] À from 7893 ind m ¡3 in 2006 to 3943 ind m ¡3 in 2010 ( Figure 5(b)).…”

Section: ¡3mentioning

confidence: 99%

Dynamics ofDreissenaspp. veliger larvae in some Bulgarian reservoirs

Stanachkova

Kozuharov

Zlatanova

et al. 2015

Biotechnology & Biotechnological Equipment

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“…Based on the presence of adult live specimens of the mussels in the reservoirs, three of them were reported as infested (8). Among them was the Ogosta Reservoir where the occurrence of both zebra and quagga mussels were recorded (9,Popa et al,unpublished). In other reservoirs such as Poletkovtsi, shells or adult specimens of Dreissena spp.…”

Section: Introductionmentioning

confidence: 99%

The Zooplankton Composition in two Reservoirs in the North-West Bulgaria in Relation toDreissenaSPP. Occurrence

Kozuharov

Trichkova

Borisova

et al. 2009

Biotechnology & Biotechnological Equipment

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“…In recent years, invasions of the species were recorded in many lakes and reservoirs in the Danube river basin including basins of the rivers Archar, Tsibritsa, Ogosta, Iskar, etc. (2,3,4). Several infested reservoirs were found also in the Aegean Sea drainage area (within the basins of rivers Maritsa and its tributary Tundzha) and in the Black Sea basin (Kamchia River) (1,3).…”

Section: Introductionmentioning

confidence: 99%

“…(2,3,4). Several infested reservoirs were found also in the Aegean Sea drainage area (within the basins of rivers Maritsa and its tributary Tundzha) and in the Black Sea basin (Kamchia River) (1,3). Until today, no records of zebra mussel infestations in the basins of rivers Struma, Mesta and Arda which belong to the Aegean Sea drainage area are known.…”

Section: Introductionmentioning

confidence: 99%