*1 *2 *2 *2 *1 AAqquuaattiicc MMiiccrroo--oorrggaanniissmmss OObbsseerrvveedd aatt KKaaddoo--iikkee PPoonndd RReesseeaarrcchh ooff 22000066--22001199

YOSHINO Kyoji *1, SUZUKI Takeshi *2, SASAKI Keiko *2, SUGIMOTO Fuko *2, TAKEGUCHI Masayuki *1

Abstract: In this study, we reported aquatic micro-organisms observed at Kado-ike pond, an irrigation pond in Numazu City, Shizuoka, in summer of 2006-2019. Kado-ike pond is an eutrophic pond and blue-green algae are blooming. In observation with microscope, 12 genera of unicellular prokaryotes, 70 genera of unicellular eukaryotes including 22 genera of protozoans, 18 genera of multicellular eukaryotes (metazoans), and 1 genus of a higher plant were found. Some micro-organisms of Cyanophyceae, Bacillariophyceae, Chlorophyceae, Oligohymenophorea, Lobosea, Rotatoria, and Branchiopoda were observed relatively frequently. These communities of phytoplankters and zooplankters have been balanced with each other and were thought to keep the ecosystem of this pond.

Key Words: Eutrophication, Kado-ike pond, Plankton, Water quality

1.3 km 13.5 ha5 6 m

7, 8 2006

[1-4]

[5]

*1 Department of Chemistry & Biochemistry *2

Technical Support Division

2006 2019

2006, 2007, 2008, 2009, 2010, 2011, 2016, 2017, 2018, 2019 7 8

2006 2019

1 11 1

37沼津工業高等専門学校研究報告第54号，2020年1月

11 22000066 22001199

class order

genus species

Aphanocapsa sp. 2010, 2016, 2017 A1

Chroococcus sp. 2016, 2017 A2

Synechocystis sp. 2010, 2016 A3

Synechococcus sp. 2016, 2017 A4

Mycrocystis sp.

2006, 2007, 2008, 2009,2010, 2011, 2016, 2018,2019

A5

Merismopedia sp. 2006, 2010, 2016, 2018 A6

Anabaena sp. 2010 A7

Nostoc sp. 2016 A8

Spirulina sp. 2010 A9

Phormidium sp. 2016, 2017 A10

Oscillatoria sp. 2006, 2010, 2016 A11,A12

Planctomycetes Planctomyces sp. 2010 A13

Fragilaria sp. 2010, 2018 B1

Synedra sp. 2010, 2016, 2018, 2019 B2,B3,B4

Gomphonema sp. 2010, 2018, 2019 B5,B6

Cymbella sp. 2007, 2010, 2017, 2018 B7

Bacillariales Nitzschia sp. 2017 B8

Rhopalodia sp. 2010, 2019 B9

Surirella sp. 2019 B10

Aulacoseirales Aulacoseira sp. 2010, 2016, 2017 B11

Melosirales Melosira sp.2010, 2016, 2017, 2018,2019

B12

Thalassiosirales Cyclotella sp. 2016 B13

Tabellariales Diatoma sp. 2010, 2016, 2018, 2019 B14

Pinnularia sp.2010, 2016, 2017, 2018,2019

B15

Neidium sp. 2010 B16

Navicula sp.2009, 2010, 2016, 2018,2019

B17,B18

Diploneis sp. 2010, 2016, 2019 B19

Pennales Cocconeis sp. 2016, 2019 B20

Volvox sp. 2010 C1

Pandorina sp. 2016 C2

Chlamydomonas sp.2010, 2011, 2016, 2017,2019

C3,C4

Eudorina sp. 2010 C5

Gonium sp. 2010 C6

Bacillariophyceae

Fragilariales

Cymbellales

Surirellales

Naviculales

Chlorophyceae Volvocales

Cyanophyceae

Chroococcales

Nostocales

Oscillatoriales

38 沼津工業高等専門学校研究報告　第 54 号

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class order

genus species

Chaetophorales Uronema sp. 2018 C7

Chlorococcales Botryococcus sp. 2010 C8

Oedogoniales Oedogonium sp.2006, 2007, 2009, 2010,2011, 2017, 2018

C9

Staurastrum sp. 2010 C10

Closterium sp. 2010 C11

Zygnematales Spirogyra sp. 2010, 2019 C12

Ankistrodesmus sp. 2010, 2017 C13,C14

Kirchneriella sp. 2010, 2016 C15

Pseudopediastrum sp. 2017 C16

Coelastrum sp. 2010 C17

Schroederia sp. 2010 C18

Tetradesmus sp. 2010 C19

Tetraedron sp. 2010, 2011 C20

Desmodesmus sp. 2006, 2010, 2016, 2018 C21

Scenedesmus sp. 2010 C22

Mychonastes sp. 2010 C23

Selenastrum sp. 2017 C24

Raphidocelis sp. 2010, 2016 C25,C26

Tetrasporales Tetraspora sp. 2006, 2010, 2016, 2017 C27

Actinastrum sp. 2010, 2019 C28

Oocystis sp. 2010, 2011, 2016 C29

Dictyosphaerium sp. 2016 C30

Prototheca sp. 2016 C31

Micractinium sp. 2010 C32

Lagerheimia sp. 2010 C33

Ulvophyceae Siphonocladales Cladophora sp. 2010, 2011, 2019 C34

2017 C35

Phacus sp. 2017, 2019 D1

Colacium sp. 2010 D2,D3

Euglena sp. 2017 D4

Monomorphina sp. 2017 D5

Cryptophyceae Cryptomonadales Chroomonas sp. 2016 D6

Chrysophyceae Synurales Synura sp. 2017 D7

Peritricha Vorticella sp. 2010, 2018 D8

Frontonia sp. 2010 D9

Paramecium sp.2007, 2008, 2009, 2010,2011, 2017, 2018, 2019 D10,D,11,D12,D13

Phytomastigophora Euglenida

OligohymenophoreaPeniculida

Chlorophyceae

Desmidales

Sphaeropleales

Trebouxiophyceae Chlorellales

39門池で観察された水中の微小生物（2006～2019年の調査）

11

class order

genus species

Colpidium sp. 2010 D14

Urocentrum sp. 2018 D15

Colpodea Bursariomorphida Bursaria sp. 2010, 2011 D16

HaptoridaMonodinium sp. 2010, 2017 D17

Dileptida Pelagodileptus sp. 2010 D18

Spirotrichea Euplotida Euplotes sp. 2016, 2018, 2019 D19,D20

Amoebida Amoeba sp.2008, 2009, 2010, 2011,2016, 2018

D21

Schizopyrenida Vahlkampfia sp. 2019 D22

Arcellinida Arcella sp. 2010, 2016, 2018, 2019 D23,D24,D25

Euglyphida Paulinella sp. 2010, 2016 D26

Nucleariida Nuclearia sp. 2010 D27

Nucleohelea Actinophryida Actinophrys sp. 2010 D28

Centrohelea Centrohelida Acanthocystis sp. 2016 D29

Lepadella sp. 2010 E1

Colurella sp. 2010 E2

Lecane sp. 2010 E3

Brachionus sp. 2010, 2018, 2019 E4,E5

Asplanchna sp. 2009, 2010, 2011, 2019 E6

Bdelloidea Rotaria sp. 2010, 2018 E7,E8,E9,E10, E11

Podocopida Ostracoda 2010, 2018, 2019 E12,E13

Cyclopoida Copepoda 2010, 2018, 2019 E13,E14

Alona sp. 2010, 2011, 2017, 2018 E15

Leptodora sp. 2019 E16

Pleuroxus sp. 2018 E17

Chydorus sp. 2010 E18,E19

F1,F2,F3,F4,F5,F6

Nematoda Nematoda Nematoda 2010, 2019 G1

Annelida Oligochaeta Tubifex sp. 2011 G2

Ephemeroptera Ephemera sp. 2007, 2011, 2018 G3

Plecoptera Plecoptera 2011 G4

Diptera Chironomus sp. 2007, 2019 G5

Malacostraca Decapoda Macrura 2010, 2018 G6

Pinopsida Pinales Cryptomeria japonica 2010 H1

Maxillopoda

Branchiopoda Diplostraca

Insecta

Litostomatea

Lobosea

Filosea

RotatoriaPloima

Oligohymenophorea Hymenostomatida

40 沼津工業高等専門学校研究報告　第 54 号

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1

A1 A5A2 A7

A8 A9 A10 A11 A13

B1 B2 B3 B4 B5 B7

B8 B9 B10 B11 B13 B14

B15 B16 B17 B19

C1 C2 C3 C4 C5 C7

C8 C9 C10 C11

C19C17C15

C14C13

C16 C20 C21

C22 C23 C25 C26 C27 C28

A3 A4

B20

A12

B18

C6

C12

C18

C24

A6

B6

B12

41門池で観察された水中の微小生物（2006～2019年の調査）

11

C29 C31 C32 C33 C34

D1 D2 D3 D4 D5 D7

D8 D9 D10 D11 D13 D14

D15 D16 D17 D19 D20

D26

E7

E8 E9 E10 E11 E13 E14

E15 E16 E17

F1 F2 F3 F4 F5

D21

D22 D23 D25

C35

E1 E2 E3 E4 E5

D27 D28

D29

E19

C30

D6

D12

D18

E6

E12

D24

F6

E18

42 沼津工業高等専門学校研究報告　第 54 号

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70 2218 1

4

A11, A12 B2 B4C3, C4 C13, C14

C25, C26 D10 D13D13 2010

D19, D20 D23 D25E7 E11

B6 B18E5

E14

F1 F2 F3, F4F5 F6

[6,7]

[5][8]

pH 9.5

G2G1 G3 G4 G5

H1

G6

11

43門池で観察された水中の微小生物（2006～2019年の調査）

1

Sinictinogomphus clavatusPseudothemis zonata

Orthetrum albistylum speciosumCalopteryx atrata

Macrobrachium sp. Palaemon paucidens Procambarus clarkiiOpsariichthys platypusCarassius cuvieric Cyprinus carpioCarassius buergeri Pseudorasbora parva

Gymnogobius urotaeniaMicropterus sp. Tridentiger sp.Lepomis macrochirus Silurus asotus

Anas platyrhynchos Alcedo atthisEgretta garzetta Phalacrocorax carbo hanedae

20Trachemys scripta elegans

[1] , , (2009): , 4433, 283-286. [2] (2013):

, 2200, 21-29. [3] (2016) : , 4477, 6. [4] , , (2019) :

, 2266, 1-9. [5] (1989) : , 5500, 53-67.

[6] (1973): , 6688, 223-229 [7] 36

, , K, 2019. [8] (2000) : , 6611, 65-77.

44 沼津工業高等専門学校研究報告　第 54 号