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 20. Algal density in depositional-targeted habitats at sites on the Truckee River: Truckee River at Clark, Nev. (site 17, fig. 1), 1993-96. Habitats sampled were sediment from pools.
[Abbreviations: cells/cm2, cells per square centimeter; sp., species]
| Taxon | Reach A, Sept. 21, 1993 (cells/cm2) |
Reach B, Sept. 21, 1993 (cells/cm2) |
Reach C | |||
|---|---|---|---|---|---|---|
| Sept. 7, 1993 (cells/cm2) |
July 7, 1994 (cells/cm2) |
Oct. 3, 1995 (cells/cm2) |
Oct. 9, 1996 (cells/cm2) |
|||
|
Total number of cells (rounded) |
23,000,000 | 25,000,000 | 8,000,000 | 2,000,000 | 8,700,000 | 32,000,000 |
| CYANOPHYTA | ||||||
| Cyanophyceae | ||||||
| Chroococcales | ||||||
| Chroococcaceae | ||||||
| Dactylococcopsis rhaphidioides | 4,800 | |||||
| Nostocales | ||||||
| Nostocaceae | ||||||
| Anabaena oscillarioides | 5,100,000 | |||||
| Nostoc pruniforme | 880,000 | |||||
| Oscillatoriaceae | ||||||
| Hydrocoleum brebissonii | 4,400,000 | |||||
| Lyngbya sp. | 12,000,000 | 13,000,000 | 3,500,000 | 88,000 | ||
| Oscillatoria sp. | 160,000 | 150,000 | 8,300,000 | |||
| Rivulariaceae | ||||||
| Calothrix parietina | 3,200,000 | |||||
| EUGLENOPHYTA | ||||||
| Euglenophyceae | ||||||
| Euglenales | ||||||
| Euglenaceae | ||||||
| Euglena sp. | 7,600 | 100,000 | ||||
| Phacus sp. | 14,000 | 7,600 | 39,000 | |||
| Trachelomonas hispida | 4,800 | |||||
| Trachelomonas volvocina | 52,000 | |||||
| BACILLARIOPHYTA | ||||||
| Coscinodiscophyceae | ||||||
| Thalassiosirales | ||||||
| Stephanodiscaceae | ||||||
| Cyclostephanos tholiformis | 12,000 | |||||
| Cyclotella meneghiniana | 24,000 | 28,000 | 6,000 | 26,000 | 86,000 | 200,000 |
| Cyclotella radiosa | 2,900 | |||||
| Melosirales | ||||||
| Melosiraceae | ||||||
| Melosira varians | 24,000 | 36,000 | 71,000 | 57,000 | ||
| Aulacoseirales | ||||||
| Aulacoseiraceae | ||||||
| Aulacoseira ambigua | 86,000 | |||||
| Aulacoseira italica | 29,000 | 57,000 | ||||
| Aulacoseira italica tenuissima | 2,900 | |||||
| Ctenophora pulchella | 19,000 | |||||
| Diatoma mesodon | 57,000 | |||||
| Diatoma vulgare | 38,000 | 12,000 | 5,700 | 71,000 | 57,000 | |
| Fragilaria capucina mesolepta | 29,000 | |||||
| Fragilaria crotonensis | 57,000 | |||||
| Fragilaria exiguiformis | 12,000 | |||||
| Fragilaria vaucheriae | 71,000 | 19,000 | 24,000 | 460,000 | ||
| Pseudostaurosira brevistriata | 57,000 | |||||
| Pseudostaurosira brevistriata inflata | 630,000 | |||||
| Fragilaria construens pumila | 24,000 | 78,000 | 17,000 | 110,000 | 200,000 | |
| Fragilaria construens subsalina | 24,000 | 76,000 | 48,000 | |||
| Staurosira construens binodis | 470,000 | 270,000 | 5,700 | |||
| Staurosira construens venter | 710,000 | 720,000 | 350,000 | 23,000 | 340,000 | |
| Staurosirella pinnata | 2,200,000 | 1,300,000 | 1,100,000 | 210,000 | 230,000 | 1,700,000 |
| Synedra acus | 5,700 | |||||
| Synedra fasciculata | 5,700 | |||||
| Synedra mazamaensis | 12,000 | 12,000 | 29,000 | |||
| Synedra rumpens | 5,700 | |||||
| Synedra ulna | 24,000 | 12,000 | 570,000 | |||
| Synedra ulna oxyrhynchus | 29,000 | |||||
| Tabellariales | ||||||
| Tabellariaceae | ||||||
| Tabellaria fenestrata | 29,000 | |||||
| Bacillariophyceae | ||||||
| Cymbellales | ||||||
| Cymbellaceae | ||||||
| Cymbella affinis | 19,000 | 29,000 | 27,000 | |||
| Cymbella cistula | 5,700 | |||||
| Cymbella mexicana janischii | 2,900 | |||||
| Encyonema minutum | 59,000 | 47,000 | 85,000 | |||
| Encyonema muelleri | 57,000 | |||||
| Encyonema silesiacum | 24,000 | 12,000 | ||||
| Reimeria sinuata | 12,000 | 19,000 | 42,000 | 29,000 | 340,000 | |
| Reimeria sinuata antiqua | 2,900 | |||||
| Gomphonemataceae | ||||||
| Gomphoneis herculeana | 12,000 | 170,000 | 57,000 | |||
| Gomphoneis olivacea | 24,000 | 9,500 | 57,000 | |||
| Gomphonema sp. | 59,000 | 85,000 | 86,000 | 57,000 | ||
| Gomphonema angustatum | 9,500 | |||||
| Gomphonema cf. clevei | 170,000 | |||||
| Gomphonema grunowii | 9,500 | |||||
| Gomphonema parvulum | 36,000 | 38,000 | 12,000 | 86,000 | 170,000 | |
| Gomphonema subclavatum | 19,000 | |||||
| Gomphonema truncatum capitatum | 12,000 | 11,000 | ||||
| Rhoicospheniaceae | ||||||
| Rhoicosphenia abbreviata | 71,000 | 76,000 | 66,000 | 97,000 | 340,000 | 1,200,000 |
| Achnanthales | ||||||
| Achnanthidiaceae | ||||||
| Achnanthidium exiguum | 19,000 | |||||
| Achnanthidium minutissimum | 47,000 | 47,000 | 36,000 | 86,000 | 290,000 | 340,000 |
| Karayevia clevei | 12,000 | 38,000 | 5,700 | |||
| Planothidium dubium | 24,000 | 57,000 | 29,000 | 29,000 | ||
| Achnanthes hauckiana rostrata | 19,000 | 57,000 | ||||
| Planothidium lanceolatum | 24,000 | 23,000 | 29,000 | 29,000 | ||
| Rossithidium pusillum | 24,000 | 6,000 | 57,000 | |||
| Cocconeidaceae | ||||||
| Cocconeis pediculus | 270,000 | 130,000 | 330,000 | 290,000 | 470,000 | 110,000 |
| Cocconeis placentula euglypta | 920,000 | 430,000 | 530,000 | 100,000 | 530,000 | 520,000 |
| Cocconeis placentula lineata | 200,000 | 380,000 | 130,000 | 57,000 | 110,000 | 400,000 |
| Naviculales | ||||||
| Diadesmidaceae | ||||||
| Diadesmis confervacea | 42,000 | 110,000 | ||||
| Naviculaceae | ||||||
| Fistulifera pelliculosa | 12,000 | 14,000 | 230,000 | |||
| Hippodonta capitata | 36,000 | 19,000 | 5,700 | 57,000 | ||
| Navicula sp. | 190,000 | 110,000 | ||||
| Navicula biconica | 9,500 | |||||
| Navicula canalis | 24,000 | 19,000 | ||||
| Navicula canoris | 12,000 | |||||
| Navicula cari | 26,000 | |||||
| Navicula cincta rostrata | 36,000 | 19,000 | 34,000 | 57,000 | ||
| Navicula cryptocephala | 29,000 | |||||
| Navicula genovefae | 5,700 | |||||
| Navicula graciloides | 24,000 | 30,000 | ||||
| Navicula gregaria | 230,000 | 57,000 | ||||
| Navicula hustedtii | 57,000 | |||||
| Navicula luzonensis | 12,000 | 86,000 | ||||
| Navicula menisculus | 12,000 | 5,700 | ||||
| Navicula minima | 11,000 | 29,000 | ||||
| Navicula ochridana | 47,000 | |||||
| Navicula paucivisitata | 24,000 | |||||
| Navicula rhynchocephala germainii | 36,000 | 76,000 | 30,000 | 1,300,000 | 370,000 | |
| Navicula salinarum intermedia | 320,000 | 170,000 | 140,000 | 14,000 | 1,300,000 | 200,000 |
| Navicula secreta apiculata | 36,000 | 38,000 | 6,000 | 17,000 | 230,000 | 110,000 |
| Navicula symmetrica | 57,000 | |||||
| Navicula tantula | 29,000 | |||||
| Navicula tripunctata | 47,000 | 12,000 | 340,000 | 57,000 | ||
| Navicula tripunctata schizonemoides | 36,000 | 470,000 | 12,000 | 5,700 | 57,000 | |
| Navicula viridula | 12,000 | 66,000 | 18,000 | |||
| Navicula viridula avenacea | 23,000 | 370,000 | 320,000 | |||
| Neidiaceae | ||||||
| Neidium dubium | 38,000 | |||||
| Pennulariaceae | ||||||
| Caloneis ventricosa truncatula | 14,000 | |||||
| Sellaphoraceae | ||||||
| Fallacia pygmaea | 29,000 | 57,000 | ||||
| Sellaphora pupula | 95,000 | 76,000 | 29,000 | |||
| Sellaphora pupula rectangularis | 24,000 | 57,000 | ||||
| Stauroneidaceae | ||||||
| Craticula cuspidata | 12,000 | 29,000 | ||||
| Thalassiophysales | ||||||
| Catenulaceae | ||||||
| Amphora ovalis | 19,000 | |||||
| Amphora ovalis pediculus | 2,900 | 29,000 | 57,000 | |||
| Amphora perpusilla | 36,000 | 19,000 | 12,000 | 8,600 | ||
| Bacillariales | ||||||
| Bacillariaceae | ||||||
| Denticula elegans | 19,000 | 12,000 | 29,000 | |||
| Nitzschia acicularis | 19,000 | |||||
| Nitzschia amphibia | 24,000 | 36,000 | 20,000 | 110,000 | 720,000 | |
| Nitzschia bacata | 12,000 | 2,900 | 110,000 | |||
| Nitzschia constricta | 57,000 | |||||
| Nitzschia dissipata | 83,000 | 24,000 | 26,000 | 29,000 | 57,000 | |
| Nitzschia fonticola | 24,000 | |||||
| Nitzschia frequens | 28,000 | 6,000 | 29,000 | 57,000 | ||
| Nitzschia frustulum | 71,000 | 38,000 | 12,000 | 54,000 | 14,000 | 800,000 |
| Nitzschia frustulum perminuta | 210,000 | 190,000 | 110,000 | 88,000 | 210,000 | 1,700,000 |
| Nitzschia frustulum subsalina | 250,000 | 95,000 | 36,000 | 51,000 | 110,000 | 340,000 |
| Nitzschia intermedia | 57,000 | |||||
| Nitzschia kuetzingiana | 120,000 | 120,000 | 42,000 | 88,000 | 470,000 | 800,000 |
| Nitzschia linearis tenuis | 29,000 | |||||
| Nitzschia palea | 38,000 | 14,000 | 170,000 | 340,000 | ||
| Tryblionella hungarica | 19,000 | 57,000 | ||||
| Tryblionella levidensis | 57,000 | 57,000 | ||||
| Tryblionella victoriae | 12,000 | |||||
| Rhopalodiales | ||||||
| Rhopalodiaceae | ||||||
| Epithemia sorex | 47,000 | 57,000 | ||||
| Epithemia turgida | 28,000 | 5,700 | ||||
| Rhopalodia gibberula | 24,000 | 9,500 | ||||
| Surirellales | ||||||
| Surirellaceae | ||||||
| Cymatopleura solea | 9,500 | 57,000 | ||||
| Surirella minuta | 6,000 | 29,000 | ||||
| Surirella ovata | 24,000 | |||||
| CHLOROPHYTA | ||||||
| Chlorophyceae | ||||||
| Volvocales | ||||||
| Chlamydomonadaceae | ||||||
| Chlamydomonas sp. | 14,000 | 100,000 | ||||
| Chlorococcales | ||||||
| Hydrodictyaceae | ||||||
| Pediastrum boryanum | 450,000 | |||||
| Oocystaceae | ||||||
| Ankistrodesmus falcatus | 260,000 | |||||
| Scenedesmaceae | ||||||
| Scenedesmus ecornis | 46,000 | |||||
| Scenedesmus quadricauda | 240,000 | 610,000 | 860,000 | |||