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 9. Algal density in the depositional-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.
[Abbreviations and symbols: cells/cm2, cells per square centimeter; sp., species; --, not applicable]
|
Taxon |
Site 3 | Site 4 | Site 5 | |||
|---|---|---|---|---|---|---|
| July 21, 1994 (cells/cm2) |
Sept. 13, 1995 (percent) |
July 22, 1994 (cells/cm2) |
Sept. 13, 1995 (percent) |
July 20, 1994 (cells/cm2) |
Sept. 19, 1995 (cells/cm2) |
|
|
Total number of cells (rounded) |
1,500,000 |
-- |
12,000,000 |
-- |
3,200,000 | 1,300,000 |
| CYANOPHYTA | ||||||
| Undetermined sp. | 1.8 | |||||
| Cyanophyceae | ||||||
| Chroococcales | ||||||
| Chroococcaceae | ||||||
| Merismopedia tenuissima | 37,000 | |||||
| Nostocales | ||||||
| Nostocaceae | ||||||
| Anabaena sp. | 75,000 | 1.1 | ||||
| Cylindrospermum minutum | 40,000 | |||||
| Oscillatoriaceae | ||||||
| Oscillatori sp. | 100,000 | 2.8 | 3.0 | 130,000 | 120,000 | |
| Rivulariaceae | ||||||
| CRYPTOPHYTA | ||||||
| Undetermined sp. | 2,900 | 7,600 | ||||
| Cryptophyceae | ||||||
| Cryptomonadales | ||||||
| Cryptomonadaceae | ||||||
| Cryptomonas sp. | 0.8 | |||||
| Calothrix sp. | 29,000 | |||||
| EUGLENOPHYTA | ||||||
| Euglenophyceae | ||||||
| Euglenales | ||||||
| Euglenaceae | ||||||
| Euglena sp. | 0.3 | 7,600 | ||||
| Phacus sp. | 7,600 | |||||
| Trachelomonas cylindrica | 28,000 | 7,600 | ||||
| Trachelomonas hispida | 28,000 | |||||
| Trachelomonas volvocina | 56,000 | |||||
| BACILLARIOPHYTA | ||||||
| Coscinodiscophyceae | ||||||
| Thalassiosirales | ||||||
| Stephanodiscaceae | ||||||
| Cyclotella meneghiniana | 4,100 | 1.1 | 19,000 | 150,000 | 70,000 | |
| Cyclotella radiosa | 8,200 | |||||
| Thalassiosiraceae | ||||||
| Thalassiosira weissflogii | 6,200 | |||||
| Melosirales | ||||||
| Melosiraceae | ||||||
| Melosira varians | 2,000 | 270,000 | 2.1 | 130,000 | 12,000 | |
| Aulacoseirales | ||||||
| Aulacoseiraceae | ||||||
| Aulacoseira alpigena | 2,000 | 0.3 | ||||
| Aulacoseira ambigua | 0.5 | 0.3 | ||||
| Aulacoseira italica | 18,000 | 0.9 | 38,000 | 0.3 | ||
| Fragilariophyceae | ||||||
| Fragilariales | ||||||
| Fragilariaceae | ||||||
| Asterionella formosa | 0.5 | |||||
| Ctenophora pulchella | 9,000 | 16,000 | ||||
| Diatoma mesodon | 4,100 | 1.5 | 38,000 | 0.3 | ||
| Diatoma vulgare | 0.3 | 120,000 | 36,000 | |||
| Fragilaria capacina mesolepta | 30,000 | |||||
| Fragilaria crotonensis | 14,000 | |||||
| Fragilaria exiguiformis | 0.3 | |||||
| Fragilaria vaucheriae | 20,000 | 4.0 | 440,000 | 2.2 | 36,000 | 36,000 |
| Hannaea arcus | 38,000 | 0.3 | ||||
| Martyana martyi | 38,000 | 9,000 | ||||
| Meridion circulare | 49,000 | 0.2 | 1.3 | 2,000 | ||
| Pseudostaurosira brevistriata | 2.6 | 4,000 | ||||
| Staurosira construens | 4,100 | 9,000 | ||||
| Fragilaria construens pumila | 71,000 | 2.8 | 1,400,000 | 23,000 | ||
| Staurosira construens venter | 41,000 | 0.9 | 250,000 | 1.0 | 190,000 | 36,000 |
| Staurosirella leptostauron | 8,200 | 0.9 | 19,000 | 0.5 | ||
| Staurosirella pinnata | 140,000 | 6.5 | 1,100,000 | 2.1 | 190,000 | 44,000 |
| Fragilaria pinnata lancettula | 0.2 | 77,000 | ||||
| Synedra fasciculata | 18,000 | |||||
| Synedra mazamaensis | 4,100 | 2,000 | ||||
| Synedra minuscula | 4,100 | 2.2 | 77,000 | 0.6 | 9,000 | 4,000 |
| Synedra parasitica subconstricta | 2,000 | |||||
| Synedra rumpens | 12,000 | 2.8 | 120,000 | 0.6 | 9,000 | |
| Synedra rumpens familiaris | 38,000 | |||||
| Synedra rumpens meneghiniana | 12,000 | |||||
| Synedra ulna | 29,000 | 0.2 | 1.0 | 32,000 | 4,000 | |
| Synedra ulna contracta | 77,000 | |||||
| Tabellariales | ||||||
| Tabellariaceae | ||||||
| Tabellaria fenestrata | 2,000 | |||||
| Bacillariophyceae | ||||||
| Eunotiales | ||||||
| Eunotiaceae | ||||||
| Eunotia exigua | 4,100 | |||||
| Eunotia tenella | 38,000 | |||||
| Cymbellales | ||||||
| Cymbellaceae | ||||||
| Cymbella sp. | 0.3 | |||||
| Cymbella affinis | 0.6 | 6,000 | ||||
| Cymbella brehmii | 0.6 | 38,000 | 0.3 | |||
| Cymbella cistula | 4,100 | |||||
| Cymbella cuspidata | 8,200 | |||||
| Cymbella hauckii | 0.3 | |||||
| Cymbella naviculiformis | 24,000 | 0.6 | 38,000 | |||
| Encyonema latens | 0.6 | |||||
| Encyonema minutum | 37,000 | 3.7 | 460,000 | 0.8 | 81,000 | 36,000 |
| Encyonema muelleri | 4,000 | |||||
| Navicula exigua capitata | 4,100 | |||||
| Encyonema silesiacum | 0.6 | 77,000 | 0.3 | |||
| Reimeria sinuata | 49,000 | 1.2 | 230,000 | 1.0 | 8,000 | |
| Gomphonemataceae | ||||||
| Gomphoneis herculeana | 16,000 | 120,000 | 1.1 | |||
| Gomphoneis olivacea | 27,000 | |||||
| Gomphonema sp. | 77,000 | 7.2 | 730,000 | 17.7 | 150,000 | 130,000 |
| Gomphonema angustatum | 38,000 | |||||
| Gomphonema angustatum intermedia | 8,000 | |||||
| Gomphonema grunowii | 4,000 | |||||
| Gomphonema intricatum | 0.6 | |||||
| Gomphonema parvulum | 4,100 | 1.2 | 0.3 | 150,000 | 58,000 | |
| Gomphonema truncatum capitatum | 4,000 | |||||
| Rhoicospheniaceae | ||||||
| Rhoicosphenia abbreviata | 12,000 | 0.2 | 400,000 | 2.4 | 190,000 | 70,000 |
| Achnanthales | ||||||
| Achnanthaceae | ||||||
| Lemnicola hungarica | 6,000 | |||||
| Achnanthidiaceae | ||||||
| Achnanthes lauenburgiana | 0.2 | |||||
| Achnanthes pseudolinearis | 1.1 | 0.3 | ||||
| Achnanthidium exiguum | 4,100 | |||||
| Achnanthidium exiguum heterovalvum | 38,000 | 0.2 | ||||
| Achnanthidium minutissimum | 49,000 | 12.7 | 650,000 | 28.8 | ||
| Planothidium dubium | 20,000 | 2.2 | 350,000 | 5.6 | 81,000 | |
| Planothidium lanceolatum | 20,000 | 2.2 | 270,000 | 6.1 | 8,000 | |
| Planothidium peragallii | 0.3 | |||||
| Psammothidium bioretii | 8,200 | 38,000 | ||||
| Psammothidium marginulatum | 8,200 | 38,000 | ||||
| Psammothidium subatomoides | 0.6 | 4,000 | ||||
| Rossithidium pusillum | 4,100 | 120,000 | ||||
| Cocconeidaceae | ||||||
| Cocconeis pediculus | 2,000 | |||||
| Cocconeis placentula euglypta | 4,100 | 0.6 | 310,000 | 2.7 | 45,000 | 6,000 |
| Cocconeis placentula lineata | 4,100 | 0.3 | 120,000 | 0.8 | 160,000 | 88,000 |
| Naviculales | ||||||
| Amphipleuraceae | ||||||
| Frustulia vulgaris | 4,100 | 38,000 | ||||
| Naviculaceae | ||||||
| Fistulifera pelliculosa | 1.1 | 0.3 | 8,000 | |||
| Geissleria decussis | 84,000 | 1.5 | 150,000 | 1.0 | ||
| Geissleria schoenfeldii | 8,200 | 77,000 | ||||
| Hippodonta capitata | 20,000 | 4,000 | ||||
| Navicula sp. | 0.6 | 1.6 | 19,000 | |||
| Navicula arvensis | 0.3 | 58,000 | ||||
| Navicula cari | 49,000 | 580,000 | 54,000 | |||
| Navicula cincta | 4,000 | |||||
| Navicula cincta rostrata | 0.3 | 36,000 | 6,000 | |||
| Navicula circumtexta | 0.3 | |||||
| Navicula convergens | 4,100 | 19,000 | 0.3 | |||
| Navicula cryptocephala | 18,000 | 0.2 | 77,000 | 4,500 | 18,000 | |
| Navicula cryptocephala veneta | 4,000 | |||||
| Navicula detenta | 0.3 | |||||
| Navicula gregaria | 43,000 | 96,000 | 8,000 | |||
| Navicula lanceolata | 23,000 | |||||
| Navicula luzonensis | 9,000 | 2,000 | ||||
| Navicula menisculus | 4,100 | 0.3 | 0.5 | |||
| Navicula minima | 10,000 | 1.9 | 120,000 | 0.3 | 36,000 | 2,000 |
| Navicula paucivisitata | 0.9 | |||||
| Navicula radiosa | 4,100 | |||||
| Navicula rhynchocephala | 8,200 | 0.3 | 38,000 | |||
| Navicula rhynchocephala germainii | 4,100 | 12,000 | ||||
| Navicula salinarum intermedia | 4,100 | 0.3 | 230,000 | 110,000 | 28,000 | |
| Navicula secreta apiculata | 61,000 | 5.6 | 400,000 | 8,000 | ||
| Navicula tantula | 0.3 | 38,000 | 4,000 | |||
| Navicula tripunctata | 19,000 | 9,000 | ||||
| Navicula tripunctata schizonemoides | 9,000 | |||||
| Navicula viridula avenacea | 10,000 | |||||
| Neidiaceae | ||||||
| Neidium affine | 0.3 | |||||
| Neidium dubium | 14,000 | |||||
| Pinnulariaceae | ||||||
| Caloneis bacillum | 10,000 | |||||
| Caloneis ventricosa truncatula | 4,100 | 38,000 | ||||
| Sellaphoraceae | ||||||
| Sellaphora laevissima | 0.3 | 9,000 | ||||
| Sellaphora mutata | 0.2 | |||||
| Sellaphora pupula | 24,000 | 0.8 | 190,000 | 28,000 | ||
| Sellaphora seminulum | 0.3 | |||||
| Thalassiophycales | ||||||
| Catenulaceae | ||||||
| Amphora ovalis | 18,000 | |||||
| Amphora ovalis pediculus | 8,200 | 0.9 | ||||
| Amphora perpusilla | 14,000 | |||||
| Amphora veneta | 10,000 | |||||
| Bacillariales | ||||||
| Bacillariaceae | ||||||
| Nitzschia acicularis | 0.3 | 2,000 | ||||
| Nitzschia amphibia | 32,000 | 12,000 | ||||
| Nitzschia bacata | 9,000 | 4,000 | ||||
| Nitzschia constricta | 4,000 | |||||
| Nitzschia dissipata | 2.0 | 540,000 | ||||
| Nitzschia dissipata media | 96,000 | 1.9 | 2,000 | |||
| Nitzschia fonticola | 4,000 | |||||
| Nitzschia frustulum | 0.8 | 120,000 | 1.3 | 72,000 | 12,000 | |
| Nitzschia frustulum perminuta | 14,000 | 2.9 | 330,000 | 0.6 | 190,000 | 32,000 |
| Nitzschia frustulum subsalina | 4,100 | 0.5 | 1.3 | 36,000 | 57,000 | |
| Nitzschia intermedia | 4,000 | |||||
| Nitzschia kuetzingiana | 18,000 | 3.1 | 38,000 | 2.7 | 81,000 | 82,000 |
| Nitzschia linearis tenuis | 0.6 | 9,000 | 2,000 | |||
| Nitzschia palea | 4,100 | 0.6 | 38,000 | 0.6 | 9,000 | 22,000 |
| Nitzschia romana | 0.2 | |||||
| Rhopalodiales | ||||||
| Rhopalodiaceae | ||||||
| Epithemia sorex | 77,000 | 110,000 | 12,000 | |||
| Rhopalodia gibberula | 0.3 | |||||
| Surirellales | ||||||
| Surirellaceae | ||||||
| Surirella angusta | 4,100 | 0.3 | 9,000 | 4,000 | ||
| Surirella ovata | 9,000 | 4,000 | ||||
| CHLOROPHYTA | ||||||
| Chlorophyceae | ||||||
| Chlorococcales | ||||||
| Oocystaceae | ||||||
| Ankistrodesmus falcatus | 2,900 | 0.3 | 3,600 | |||
| Scenedesmaceae | ||||||
| Scenedesmus acutus | 140,000 | |||||
| Scenedesmus quadricauda | 61,000 | |||||
| Oedongiales | ||||||
| Oedononiacea | ||||||
| Oedogonium sp. | 1.0 | |||||
| Zygnematales | ||||||
| Desmidiaceae | ||||||
| Cosmarium sp. | 0.3 | |||||
| Cosmarium botrytis | 2,900 | |||||
| Cosmarium trilobulatum | 3,600 | |||||
| Staurastrum sp. | 28,000 | |||||
| Staurastrum punctulatum | 0.3 | |||||