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Notation	Thema	Titel in dieser Klasse	Titel in dieser Klasse und Unterklassen	Weitere Titel
	Haupttafeln
500	Naturwissenschaften	0 (DNB) 90 (GBV) 1 (HeBIS) 14 (SUB) 129 (SWB) 121 (FUB)	166375 (DNB) 722483 (GBV) 901432 (HeBIS) 310584 (SUB) 516629 (SWB) 477242 (FUB)	0 (DNB)
570	Biologie	0 (DNB) 2 (GBV) 0 (HeBIS) 0 (SUB) 63 (SWB) 10 (FUB)	43123 (DNB) 125626 (GBV) 313939 (HeBIS) 49772 (SUB) 86563 (SWB) 57359 (FUB)	0 (DNB)
576-578	Allgemeine und äußerliche biologische Phänomene	167 (DNB) 3772 (GBV) 0 (HeBIS) 1286 (SUB) 2717 (SWB) k.A. (FUB)	5463 (DNB) 24019 (GBV) 0 (HeBIS) 6428 (SUB) 17752 (SWB) k.A. (FUB)	28 (DNB)
577	Ökologie	130 (DNB) 2913 (GBV) 0 (HeBIS) 611 (SUB) 2158 (SWB) 578 (FUB)	3464 (DNB) 13964 (GBV) 0 (HeBIS) 3613 (SUB) 10138 (SWB) 3914 (FUB)	18 (DNB)
577.3-577.6	Ökologie einzelner nichtmaritimer Lebensräume	274 (DNB) 1546 (GBV) 0 (HeBIS) 416 (SUB) 1404 (SWB) k.A. (FUB)	1851 (DNB) 5408 (GBV) 0 (HeBIS) 1638 (SUB) 3838 (SWB) k.A. (FUB)	643 (DNB)
577.6	Wasserökologie	39 (DNB) 755 (GBV) 0 (HeBIS) 156 (SUB) 685 (SWB) 148 (FUB)	739 (DNB) 2202 (GBV) 0 (HeBIS) 582 (SUB) 1537 (SWB) 315 (FUB)	281 (DNB)
577.64	Ökologie von Fließgewässern	32 (DNB) 138 (GBV) 0 (HeBIS) 26 (SUB) 112 (SWB) 19 (FUB)	133 (DNB) 271 (GBV) 0 (HeBIS) 76 (SUB) 178 (SWB) 39 (FUB)	69 (DNB)
577.6427	Flüsse--Ökologie--Umweltverschmutzung, . . .	5 (DNB) 10 (GBV) 0 (HeBIS) 5 (SUB) 9 (SWB) 3 (FUB)	35 (DNB) 30 (GBV) 0 (HeBIS) 11 (SUB) 17 (SWB) 6 (FUB)	0 (DNB)

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