Hydro-climatic consequences on zooplankton diversity and abundance in perennial Vavuniya reservoir and seasonal Thandikulam reservoir in Vavuniya, Sri Lanka

The Journal of Basic and Applied Zoology

Table 1 Zooplankton species composition in Vavuniya and Thandikulam reservoir during July 2018–February 2019

Zooplankton category		Vavuniya reservoir		Thandikulam reservoir
Family	Species	D	W	D	W
Rotifera
Brachionidae	Brachionus angularis	–	+	–	–
	Brachionus budapestinensis	–	–	–	+
	Brachionus calyciflorous	+	+ +	–	+ +
	Brachionus caudatus	–	+ + +	+	+ + + +
	Brachionus dimidatus	+	–	–	–
	Brachionus falcatus	+	+ + +	+ +	+ + + +
	Brachionus quadridentatus	–	+ +	+	+
	Brachionus urceolaris	+ + + +	+ +	+ +	+ +
	Keratella tropica	+	+	+	+
	Keratella valga	–	+	–	+ +
	Keratella cochlearis	–	+	–	–
Asplanchnidae	Asplanchna sp.	+ + + +	–	+	+
Testudinellidae	Filinia longiseta	+ + + +	+	–	–
Testudinellidae	Testudinella patina	–	–	–	+
Lecanidae	Lecane bulla	–	–	–	+
	Lecane closterocera	–	+	–	–
	Lecane leontina	–	+	–	+
Cladocera
Sididae	Ceriodaphnia reticulata	–	+	–	–
Sididae	Ceriodaphnia laticaudata	+ + + +	+ +	+	+
Moinidae	Moina sp.	+ +	+	+ +	+
Leptodoridae	Leptodora kindtii	+	–	–	–
Copepoda
Cyclopoidae	Mesocyclops leukarti	+ + +	+ +	+ +	+
	Thermocyclops sp.	+	+	+	–
	Tropocyclops sp.	+	+	–	–
Calanidae	Calanus sp.	+ + +	+ +	+ + +	+ +

D: Dry season, W: Wet season,
+ + + + : Very high species abundance, + + + : High species abundance, + + : Moderate species abundance,
+ : Low species abundance, –: No species found