Distribution of the invasive polychaete Hypania invalida (Grube, 1860) against the background of the benthic fauna in the upper Oder River catchment (Poland) | Knowledge and Management of Aquatic Ecosystems

Anthropogenic impact on freshwater habitats, communities and ecosystem functioning

Open Access

Table 3

Abundance of macroinvertebrates (per m²) at the sites where H. invalida was found.

		O1		O1		O2		KG1
Taxa		2017	2018	2017	2018	2017	2018	2017
		depth <1 m		depth >1 m		depth >1 m		depth <1 m
Polychaeta	Hypania invalida*	171	16	800	1133	15	2030	176
	Laonome xeprovala*	448	90	444	2182		607	21
Oligochaeta	Psammoryctides barbatus*	21	43	7	68
	Branchiura sowerbyi*	16	26
	Spirosperma ferox				10
	Potamothrix moldaviensis*					26	13
	Limnodrilus claparedeanus	59	27		29	130	508
	Limnodrilus hoffmeisteri	59	587		68	208	1823
	Tubicininae gen. spp.juv.		1103	13	78	234	1471
	Ophidonais serpentina					39	52
	Dero digitata				49
Hirudinea	Erpobdella testacea							11
	Helobdella stagnalis							277
	Piscicola sp.	5					15
Isopoda	Asellus aquaticus							208
Amphipoda	Apocorophium lacustre	1723	512	1504	63 600	4785	16 252	1264
	Chelicorophium curvispinum*	624	37	74	2000	59
	Dikerogammarus haemobaphes*		11		33			5
	Dikerogammarus villosus*	800	80	67	100	59	15	277
	Gammarus tigrinus*	160	4651	30	8811	89	1733	9451
Odonata	Calopterygidae	5
	Coenagrionidae		43
	Libellulidae		5
	Platycnemidae					59
Ephemeroptera	Caenidae					30	15
Neuroptera	Sisyridae							27
Diptera	Ceratopogonidae					15
	Chironomidae	245	144	37	11	1200	1081	1552
Gastropoda	Bithynia tentaculata	261	16				15	677
	Viviparus viviparus	5	32	22		44
	Valvata naticina		11			30
	Potamopyrgus antipodarum*	1605	496	2289		1333	1393	64
	Physa acuta*	69	160
	Radix balthica	16						112
	Ancylus fluviatilis	5				370	430
Bivalvia	Corbicula fluminea*	16	16	311	311	74		16
	Dreissena polymorpha*	96	133	467	22	15		7803
	Pisidium sp.	11	53			30	148
	Sphaerium rivicola		37		11		30
	Sphaerium sp.	16		7
	Anodonta anatina							5
	Unio pictorum					15	30
Macroinvertebrate density (m²)		6437	8328	6071	78 518	8860	27 659	21 947
Alien species density (individuals m⁻²)		4026	5759	4489	14 660	1670	5791	17813

*alien species.

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