USGS Open-File Report 02-012
Physical Data and Biological Data for Algae, Aquatic Invertebrates, and Fish from Selected Reaches on the Carson and Truckee Rivers, Nevada and California, 1993-97
Table 5. Algal density in richest-targeted habitat at sites on the Carson River: West Fork Carson River above Woodfords, Calif. (site 3, fig. 1), West Fork Carson River at Paynesville, Calif. (site 4, fig. 1), and West Fork Carson River at Muller Lane near Minden, Nev. (site 5, fig. 1), 1994-95. Habitats sampled were cobble riffles.
[Abbreviations: cells/cm2, cells per square centimeter; sp., species]
|
Taxon |
Site 3 | Site 4 | Site 5 | ||
|---|---|---|---|---|---|
| July 21, 1994 (cells/cm2) |
Sept. 13, 1995 (cells/cm2) |
Sept. 13, 1995 (cells/cm2) |
July 20, 1994 (cells/cm2) |
Sept. 19, 1995 (cells/cm2) |
|
|
Total number of cells (rounded) |
16,000,000 | 19,000 | 110,000 | 10,000,000 | 6,400,000 |
| CYANOPHYTA | |||||
| Undetermined species | 12,000 | 2,400 | 250,000 | 95,000 | |
| Cyanophyceae | |||||
| Chroococcales | |||||
| Chroococcaceae | |||||
| Dactylococcopsis rhaphidioides | 5,800 | ||||
| Chamaesiphonales | |||||
| Chamaesiphonaceae | |||||
| Chamaesiphon incrustans | 17,000 | ||||
| Nostocales | |||||
| Oscillatoriaceae | |||||
| Hydrocoleum brebissonii | 320,000 | ||||
| Lyngbya sp. | 220,000 | 380,000 | 970,000 | ||
| Oscillatoria sp. | 3,200,000 | 5,600 | 3,700 | 2,800,000 | 570,000 |
| Rivulariaceae | |||||
| Calothrix sp. | 12,000,000 | 8,000 | 210,000 | 1,200,000 | |
| CRYPTOPHYTA | |||||
| Undetermined sp. | 5,800 | 210,000 | |||
| EUGLENOPHYTA | |||||
| Euglenophyceae | |||||
| Euglenales | |||||
| Euglenaceae | |||||
| Euglena sp. | 5,800 | ||||
| Lepocinclis fusiformis | 21,000 | ||||
| Trachelomonas volvocina | 41,000 | ||||
| BACILLARIOPHYTA | |||||
| Coscinodiscophyceae | |||||
| Thalassiosirales | |||||
| Stephanodiscaceae | |||||
| Cyclotella meneghiniana | 3,600 | 38 | 540 | 50,000 | 21,000 |
| Cyclotella radiosa | 890 | ||||
| Cyclotella stelligera | 890 | ||||
| Melosirales | |||||
| Melosiraceae | |||||
| Melosira varians | 1,800 | 140,000 | 110,000 | ||
| Aulacoseirales | |||||
| Aulacoseiraceae | |||||
| Aulacoseira alpigena | 890 | ||||
| Aulacoseira italica | 890 | 360 | |||
| Fragilariophyceae | |||||
| Fragilariales | |||||
| Fragilariaceae | |||||
| Ctenophora pulchella | 30,000 | ||||
| Diatoma mesodon | 180 | ||||
| Diatoma vulgare | 890 | 19 | 180 | 30,000 | 420,000 |
| Fragilaria vaucheriae | 1,800 | 19 | 1,400 | 10,000 | |
| Fragilaria virescens exigua | 8,900 | ||||
| Hannaea arcus | 9 | ||||
| Meridion circulare | 1,800 | 180 | |||
| Pseudostaurosira brevistriata | 56 | ||||
| Staurosira construens | 1,800 | ||||
| Fragilaria construens pumila | 61,000 | ||||
| Staurosira construens binodis | 27,000 | 20,000 | |||
| Staurosira construens venter | 73,000 | 30,000 | |||
| Staurosirella leptostauron | 1,800 | 540 | |||
| Staurosirella pinnata | 90,000 | 50,000 | |||
| Fragilaria pinnata lancettula | 360 | ||||
| Synedra acus | 30,000 | ||||
| Synedra rumpens | 180 | ||||
| Synedra ulna | 3,600 | 540 | 140,000 | ||
| Bacillariophyceae | |||||
| Cymbellales | |||||
| Cynbellaceae | |||||
| Cymbella sp. | 720 | 5,200 | |||
| Cymbella affinis | 10,000 | ||||
| Cymbella brehmii | 890 | 21,000 | |||
| Cymbella cistula | 890 | ||||
| Encyonema minutum | 1,800 | 85 | 6,500 | 310,000 | 88,000 |
| Encyonema muelleri | 540 | ||||
| Encyonema silesiacum | 360 | ||||
| Reimeria sinuata | 5,300 | 690 | 1,800 | 30,000 | 42,000 |
| Reimeria sinuata antiqua | 30,000 | ||||
| Gomphonemataceae | |||||
| Gomphoneis herculeana | 720 | ||||
| Gomphoneis olivacea | 600 | ||||
| Gomphonema sp. | 26,000 | 4,000 | 39,000 | 420,000 | 160,000 |
| Gomphonema angustatum intermedia | 360 | ||||
| Gomphonema intricatum | 38 | 2,200 | |||
| Gomphonema parvulum | 12,000 | 19 | 360 | 280,000 | |
| Gomphonema subclavatum | 10,000 | ||||
| Gomphonema truncatum capitatum | 2,700 | 40,000 | |||
| Gomphosphenia grovei | 10,000 | ||||
| Rhoicospheniaceae | |||||
| Rhoicosphenia abbreviata | 52,000 | 5,400 | 2,100,000 | 1,100,000 | |
| Achanthales | |||||
| Achnanthidiaceae | |||||
| Achnanthes pseudolinearis | 170 | 360 | |||
| Achnanthidium minutissimum | 1,800 | 170 | 26,000 | 10,000 | |
| Karayevia clevei | 890 | ||||
| Planothidium dubium | 1,800 | 66 | 1,400 | ||
| Planothidium lanceolatum | 56 | ||||
| Rossithidium pusillum | 3,400 | ||||
| Cocconeidaceae | |||||
| Cocconeis pediculus | 23,000 | 66 | 360 | 50,000 | |
| Cocconeis placentula euglypta | 20,000 | 19 | 720 | 40,000 | |
| Cocconeis placentula lineata | 4,400 | 1,100 | 60,000 | 42,000 | |
| Naviculales | |||||
| Amphipleuraceae | |||||
| Frustulia vulgaris | 19 | ||||
| Diploneidaceae | |||||
| Diploneis puella | 890 | ||||
| Naviculaceae | |||||
| Geissleria decussis | 890 | 180 | |||
| Geissleria schoenfeldii | 5,300 | 20,000 | |||
| Hippodonta capitata | 10,000 | ||||
| Navicula sp. | 47 | 1,600 | 73,000 | ||
| Navicula cari | 40,000 | ||||
| Navicula cincta rostrata | 20,000 | ||||
| Navicula cryptocephala | 890 | 5,200 | |||
| Navicula cryptocephala veneta | 20,000 | 21,000 | |||
| Navicula gregaria | 890 | ||||
| Navicula lanceolata | 20,000 | ||||
| Navicula menisculus | 900 | ||||
| Navicula minima | 890 | 540 | 10,000 | 10,000 | |
| Navicula rhynchocephala germainii | 1,800 | 20,000 | |||
| Navicula salinarum intermedia | 8,900 | 100,000 | 88,000 | ||
| Navicula secreta apiculata | 2,700 | 720 | |||
| Navicula symmetrica | 890 | ||||
| Navicula tripunctata | 360 | 20,000 | 5,200 | ||
| Pinnulariaceae | |||||
| Caloneis bacillum | 50,000 | 83,000 | |||
| Sellaphoraceae | |||||
| Sellaphora pupula | 2,700 | 180 | 5,200 | ||
| Sellaphora pupula rectangularis | 890 | ||||
| Sellaphora seminulum | 180 | 20,000 | |||
| Thalassiophysales | |||||
| Catenulaceae | |||||
| Amphora ovalis | 9 | ||||
| Amphora ovalis pediculus | 20,000 | ||||
| Amphora perpusilla | 9 | 360 | 90,000 | 10,000 | |
| Bacillarales | |||||
| Bacillariaceae | |||||
| Hantzschia amphioxys | 890 | ||||
| Nitzschia amphibia | 3,600 | 250,000 | 5,200 | ||
| Nitzschia bacata | 650 | 30,000 | |||
| Nitzschia dissipata | 3,600 | 110,000 | |||
| Nitzschia dissipata media | 890 | 360 | |||
| Nitzschia fonticola | 1,800 | ||||
| Nitzschia frustulum | 8,000 | 720 | 80,000 | 62,000 | |
| Nitzschia frustulum perminuta | 8,000 | 1,400 | 240,000 | 560,000 | |
| Nitzschia frustulum subsalina | 16,000 | 20,000 | |||
| Nitzschia kuetzingiana | 5,400 | ||||
| Nitzschia linearis tenuis | 360 | 10,000 | |||
| Nitzschia palea | 890 | 10,000 | |||
| Tryblionella debilis | 890 | ||||
| Rhopalodiales | |||||
| Rhopalodiaceae | |||||
| Epithemia sorex | 21,000 | 980,000 | 42,000 | ||
| Epithemia turgida | 890 | 180 | |||
| CHLOROPHYTA | |||||
| Undetermined species | 4,200 | 330 | 76,000 | 10,000 | |
| Chlorophyceae | |||||
| Volvocales | |||||
| Chlamydomonadaceae | |||||
| Chlamydomonas sp. | 11,000 | ||||
| Chlorococcales | |||||
| Oocystaceae | |||||
| Ankistrodesmus falcatus | 21,000 | ||||
| Scenedesmaceae | |||||
| Coelastrum microporum | 62,000 | ||||
| Scenedesmus acutus | 190,000 | ||||
| Scenedesmus dimorphus | 34,000 | ||||