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 15. Algal density in richest-targeted habitat at sites on the Truckee River: Truckee River near Sparks, Nev. (site 15, fig. 1), and Truckee River at Lockwood, Nev. (site 16, fig. 1), 1993-95. Habitats sampled were cobble riffles.
[Abbreviations: cells/cm2, cells per square centimeter; sp., species]
|
Taxon |
Site 15 |
Site 16 | |||
|---|---|---|---|---|---|
| Sept. 3, 1993 (cells/cm2) |
June 29, 1994 (cells/cm2) |
Sept. 25, 1995 (cells/cm2) |
July 6, 1994 (cells/cm2) |
Sept. 26, 1995 (cells/cm2) |
|
| Total number of cells (rounded) | 4,300,000 | 16,000,000 | 1,700,000 | 4,400,000 | 7,000,000 |
| CYANOPHYTA | |||||
| Unidentified species | 26,000 | 76,000 | 7,400 | ||
| Cyanophyceae | |||||
| Chroococcales | |||||
| Chroococcaceae | |||||
| Dactylococcopsis rhaphidioides | 6,500 | ||||
| Merismopedia tenuissima | 61,000 | ||||
| Chamaesiphonales | |||||
| Chamaesiphonaceae | |||||
| Chamaesiphon incrustans | 25,000 | ||||
| Nostocales | |||||
| Oscillatoriaceae | |||||
| Hydrocoleum brebissonii | 34,000 | ||||
| Lyngbya sp. | 1,800,000 | 190,000 | |||
| Oscillatoria sp. | 1,500,000 | 290,000 | 220,000 | 32,000 | |
| Rivulariaceae | |||||
| Calothrix sp. | 11,000,000 | 660,000 | |||
| Calothrix parietina | 3,000,000 | ||||
| RHODOPHYTA | |||||
| Florideophyceae | |||||
| Nemaliales | |||||
| Acrochaetiaceae | |||||
| Audouinella hermanii | 15,000 | ||||
| BACILLARIOPHYTA | |||||
| Coscinodiscophyceae | |||||
| Thalassiosirales | |||||
| Stephanodiscaceae | |||||
| Cyclotella meneghiniana | 9,000 | 2,200 | 350,000 | 2,900 | |
| Stephanodiscus hantzschii | 2,200 | ||||
| Melosirales | |||||
| Melosiraceae | |||||
| Melosira varians | 7,600 | 880 | 66,000 | 1,900 | |
| Aulacoseirales | |||||
| Aulacoseiraceae | |||||
| Aulacoseira ambigua | 2,200 | 880 | |||
| Aulacoseira italica tenuissima | 6,000 | ||||
| Fragilariophyceae | |||||
| Fragilariales | |||||
| Fragilariaceae | |||||
| Diatoma vulgare | 4,500 | 2,200 | 3,500 | 24,000 | 930 |
| Fragilaria capucina mesolepta | 4,500 | ||||
| Fragilaria crotonensis | 880 | ||||
| Fragilaria vaucheriae | 2,200 | 5,500 | 880 | 4,600 | |
| Hannaea arcus | 4,500 | ||||
| Pseudostaurosira brevistriata | 6,200 | 13,000 | |||
| Fragilaria brevistriata inflata | 3,700 | ||||
| Staurosira construens | 4,400 | ||||
| Fragilaria construens pumila | 67,000 | 8,700 | 1,800 | 60,000 | 24,000 |
| Fragilaria construens subsalina | 20,000 | ||||
| Staurosira construens binodis | 16,000 | 7,400 | |||
| Staurosira construens venter | 110,000 | 15,000 | 2,600 | 12,000 | 19,000 |
| Staurosirella pinnata | 240,000 | 30,000 | 2,600 | 36,000 | 57,000 |
| Synedra rumpens | 3,300 | 1,800 | |||
| Synedra rumpens fragilarioides | 930 | ||||
| Synedra ulna | 22,000 | 40,000 | 90,000 | ||
| Synedra ulna contracta | 2,200 | ||||
| Synedra ulna danica | 4,500 | ||||
| Synedra ulna oxyrhynchus | 4,500 | 5,500 | 5,300 | ||
| Bacillariophyceae | |||||
| Cymbellales | |||||
| Cynbellaceae | |||||
| Cymbella sp. | 220,000 | ||||
| Cymbella affinis | 26,000 | 130,000 | 6,000 | 930 | |
| Cymbella brehmii | 1,800 | ||||
| Cymbella mexicana janischii | 1,100 | ||||
| Encyonema minutum | 11,000 | 25,000 | 46,000 | 30,000 | 17,000 |
| Encyonema muelleri | 1,100 | 1,800 | |||
| Encyonema prostratum | 2,200 | ||||
| Encyonema silesiacum | 880 | 930 | |||
| Reimeria sinuata | 13,000 | 36,000 | 18,000 | 29,000 | |
| Gomphonemataceae | |||||
| Gomphoneis eriense variabilis | 9,000 | 3,500 | |||
| Gomphoneis herculeana | 4,500 | 1,800 | |||
| Gomphoneis olivacea | 6,700 | 2,200 | |||
| Gomphonema sp. | 6,700 | 35,000 | 5,300 | 260,000 | 3,700 |
| Gomphonema parvulum | 18,000 | ||||
| Rhoicospheniaceae | |||||
| Rhoicosphenia abbreviata | 27,000 | 3,300 | 58,000 | 740,000 | 100,000 |
| Achanthales | |||||
| Achnanthidiaceae | |||||
| Achnanthes pinnata | 930 | ||||
| Achnanthidium exiguum | 2,200 | ||||
| Achnanthidium minutissimum | 72,000 | 27,000 | 90,000 | 100,000 | 28,000 |
| Karayevia clevei | 6,700 | 2,200 | 930 | ||
| Planothidium dubium | 18,000 | 6,600 | 1,800 | 1,900 | |
| Rossithidium pusillum | 2,200 | 3,500 | 2,800 | ||
| Cocconeidaceae | |||||
| Cocconeis pediculus | 11,000 | 1,800 | 72,000 | 25,000 | |
| Cocconeis placentula euglypta | 40,000 | 37,000 | 19,000 | 130,000 | 20,000 |
| Cocconeis placentula lineata | 23,000 | 7,000 | 24,000 | 11,000 | |
| Naviculales | |||||
| Amphipleuraceae | |||||
| Amphipleura pellucida | 4,400 | ||||
| Diploneidaceae | |||||
| Diploneis puella | 2,200 | ||||
| Naviculaceae | |||||
| Fistulifera pelliculosa | 930 | ||||
| Geissleria schoenfeldii | 6,700 | ||||
| Hippodonta capitata | 2,200 | ||||
| Navicula sp. | 5,300 | 6,500 | |||
| Navicula arvensis | 1,100 | ||||
| Navicula canalis | 2,200 | ||||
| Navicula cari | 8,700 | 120,000 | |||
| Navicula cincta rostrata | 1,900 | ||||
| Navicula cryptocephala | 4,400 | ||||
| Navicula graciloides | 18,000 | ||||
| Navicula gregaria | 880 | 6,000 | |||
| Navicula luzonensis | 2,200 | ||||
| Navicula menisculus | 4,500 | 4,400 | |||
| Navicula minima | 9,000 | 2,200 | 1,900 | ||
| Navicula pseudolanceolata | 1,800 | ||||
| Navicula rhynchocephala | 2,200 | ||||
| Navicula rhynchocephala germainii | 1,900 | ||||
| Navicula salinarum intermedia | 160,000 | 15,000 | 49,000 | 990,000 | 29,000 |
| Navicula secreta apiculata | 2,200 | 1,800 | 6,000 | 2,800 | |
| Navicula tantula | 2,200 | ||||
| Navicula tripunctata | 18,000 | 8,700 | 7,100 | 84,000 | 22,000 |
| Navicula viridula | 26,000 | ||||
| Navicula viridula avenacea | 6,200 | 6,000 | 3,700 | ||
| Pinnulariaceae | |||||
| Caloneis bacillum | 4,500 | ||||
| Sellaphoraceae | |||||
| Sellaphora pupula | 2,200 | 4,400 | 12,000 | 7,400 | |
| Thalassiophysales | |||||
| Catenulaceae | |||||
| Amphora ovalis pediculus | 2,200 | 1,800 | |||
| Amphora perpusilla | 4,500 | 8,700 | 930 | 3,700 | |
| Amphora veneta | 930 | ||||
| Bacillarales | |||||
| Bacillariaceae | |||||
| Cymbellonitzschia diluviana | 9,000 | ||||
| Nitzschia acicularis | 2,200 | ||||
| Nitzschia amphibia | 2,200 | 42,000 | 27,000 | ||
| Nitzschia bacata | 2,200 | ||||
| Nitzschia diserta | 2,200 | ||||
| Nitzschia dissipata | 110,000 | 17,000 | 1,900 | ||
| Nitzschia dissipata media | 2,200 | 7,900 | 930 | ||
| Nitzschia fonticola | 2,200 | ||||
| Nitzschia frustulum | 52,000 | 8,700 | 880 | 66,000 | 5,600 |
| Nitzschia frustulum perminuta | 38,000 | 4,400 | 1,800 | 110,000 | 42,000 |
| Nitzschia frustulum subsalina | 13,000 | 2,200 | 18,000 | 11,000 | |
| Nitzschia kuetzingiana | 2,200 | 11,000 | 3,500 | 54,000 | 1,900 |
| Nitzschia palea | 8,700 | 36,000 | 3,700 | ||
| Nitzschia siliqua | 8,700 | ||||
| Nitzschia subtilis | 31,000 | ||||
| Tryblionella hungarica | 2,200 | ||||
| Rhopalodiales | |||||
| Rhopalodiaceae | |||||
| Epithemia sorex | 6,600 | ||||
| Epithemia turgida | 4,400 | ||||
| Surirellales | |||||
| Surirellaceae | |||||
| Surirella angusta | 24,000 | 12,000 | |||
| Surirella minuta | 34,000 | 880 | |||
| CHLOROPHYTA | |||||
| Unidentified species | 100,000 | 4,400 | |||
| Chlorophyceae | |||||
| Chlorococcales | |||||
| Oocystaceae | |||||
| Ankistrodesmus falcatus | 33,000 | 76,000 | |||
| Kirchneriella lunaris | 38,000 | ||||
| Quadrigula lacustris | 20,000 | 38,000 | |||
| Scenedesmaceae | |||||
| Scenedesmus acutus | 13,000 | ||||
| Scenedesmus denticulatus | 59,000 | ||||
| Chaetophorales | |||||
| Chaetophoraceae | |||||
| Stigeoclonium lubricum | 730,000 | ||||
| Oedogoniales | |||||
| Oedogoniaceae | |||||
| Oedogonium sp. | 93,000 | 5,700 | |||
| Ulvophyceae | |||||
| Cladophorales | |||||
| Cladophoraceae | |||||
| Cladophora sp. | 3,000 | ||||
| Charophyceae | |||||
| Zygnemateles | |||||
| Desmidiaceae | |||||
| Cosmarium botrytis | 25,000 | ||||
| Cosmarium subcrenatum | 3,700 | ||||