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 10. Algal density in the depositional-targeted habitat at sites on the Carson River: East Fork Carson River at Minden, Nev. (site 2, fig. 1), Carson River near Carson City, Nev. (site 6, fig. 1) and Carson River at Deer Run Road near Carson City (site 7, fig. 1), 1993-95. Habitats sampled were sediments from pools.
[Abbreviations and symbols: cells/cm2, cells per square centimeter; sp., species; --, not applicable]
|
Taxon |
Site 2 |
Site 6 | Site 7 | |||
|---|---|---|---|---|---|---|
| July 19, 1994 (cells/cm2) | Sept. 12, 1995 (percent) | Sept. 8, 1993 (cells/cm2) | July 15, 1994 (cells/cm2) | Sept. 12, 1995 (cells/cm2) | ||
|
Total number of cells (rounded) |
13,000,000 |
13,000,000 | -- | 7,800,000 | 23,000,000 | 4,800,000 |
| CYANOPHYTA | ||||||
| Undetermined species | 41,000 | |||||
| Cyanophyceae | ||||||
| Nostocales | ||||||
| Nostocaceae | ||||||
| Anabaena sp. | 300,000 | 1,100,000 | 700,000 | 190,000 | ||
| Cylindrospermum minutum | 1,000,000 | |||||
| Oscillatoriaceae | ||||||
| Hydrocoleum brebissonii | 1.4 | |||||
| Lyngbya sp. | 330,000 | 1,900,000 | ||||
| Oscillatoria sp. | 1,500,000 | 870,000 | 1.9 | 4,600,000 | ||
| Rivulariaceae | ||||||
| Calothrix sp. | 150,000 | |||||
| EUGLENOPHYTA | ||||||
| Euglenophyceae | ||||||
| Euglenales | ||||||
| Euglenaceae | ||||||
| Euglena sp. | 15,000 | 8,700 | ||||
| Lepocinclis fusiformis | 15,000 | |||||
| Trachelomonas hispida | 8,700 | |||||
| Calothrix parietina | 1,100,000 | |||||
| BACILLARIOPHYTA | ||||||
| Coscinodiscophyceae | ||||||
| Thalassiosirales | ||||||
| Stephanodiscaceae | ||||||
| Cyclotella atomus | 30,000 | |||||
| Cyclotella meneghiniana | 260,000 | 140,000 | 4.0 | 33,000 | 430,000 | 260,000 |
| Cyclotella pseudostelligera | 25,000 | |||||
| Thalassiosiraceae | ||||||
| Thalassiosira weissflogii | 0.3 | |||||
| Fragilariophyceae | ||||||
| Melosirales | ||||||
| Melosiraceae | ||||||
| Melosira varians | 570,000 | 190,000 | 11.2 | 22,000 | 570,000 | |
| Aulacoseirales | ||||||
| Aulacoseiraceae | ||||||
| Aulacoseira ambigua | 0.8 | 15,000 | ||||
| Fragilariales | ||||||
| Fragilariaceae | ||||||
| Ctenophora pulchella lacerata | 7,600 | |||||
| Diatoma vulgare | 130,000 | 96,000 | 3.1 | 68,000 | ||
| Fragilaria capucina mesolepta | 0.6 | |||||
| Fragilaria exiguiformis | 54,000 | 140,000 | 0.3 | 89,000 | 530,000 | 120,000 |
| Fragilaria vaucheriae | 150,000 | 22,000 | ||||
| Hannaea arcus | 32,000 | 0.3 | ||||
| Pseudostaurosira brevistriata | 1.3 | 160,000 | ||||
| Pseudostaurosira brevistriata inflata | 64,000 | |||||
| Staurosira construens | 2.3 | 89,000 | 250,000 | 30,000 | ||
| Staurosira construens binodis | 200,000 | 770,000 | 89,000 | 100,000 | 440,000 | |
| Fragillaria construens pumila | 570,000 | 260,000 | 0.8 | 230,000 | 91,000 | |
| Fragillaria construens subsalina | 110,000 | |||||
| Staurosira construens venter | 660,000 | 3,500,000 | 19.0 | 160,000 | 4,600,000 | 600,000 |
| Staurosirella pinnata | 1,100,000 | 1,100,000 | 14.3 | 4,800,000 | 4,100,000 | 260,000 |
| Fragillaria pinnata lancettula | 240,000 | 0.2 | 9,200 | |||
| Synedra mazamaensis | 27,000 | 1.0 | ||||
| Synedra minuscula | 27,000 | 32,000 | ||||
| Synedra rumpens | 0.3 | |||||
| Synedra ulna | 310,000 | 0.5 | 23,000 | |||
| Synedra ulna oxyrhynchus | 54,000 | 0.3 | ||||
| Cymbellales | ||||||
| Cymbellaceae | ||||||
| Cymbella sp. | 0.2 | |||||
| Cymbella affinis | 27,000 | |||||
| Encyonema minutum | 160,000 | 0.5 | 15,000 | |||
| Encyonema silesiacum | 13,000 | |||||
| Navicula elginensis neglecta | 32,000 | |||||
| Reimeria sinuata | 110,000 | 130,000 | 51,000 | |||
| Reimeria sinuata antiqua | 15,000 | |||||
| Gomphonemataceae | ||||||
| Gomphoneis herculeana | 27,000 | |||||
| Gomphoneis olivacea | 13,000 | 96,000 | 1.9 | 67,000 | 30,000 | |
| Gomphonema sp. | 400,000 | 260,000 | 1.3 | 89,000 | 51,000 | 120,000 |
| Gomphonema angustum intermedia | 0.3 | |||||
| Gomphonema grunowii | 51,000 | |||||
| Gomphonema intricatum | 15,000 | |||||
| Gomphonema parvulum | 81,000 | 32,000 | 22,000 | 25,000 | ||
| Rhoicospheniaceae | ||||||
| Rhoicosphenia abbreviata | 81,000 | 80,000 | 0.3 | 89,000 | 250,000 | 76,000 |
| Achnanthales | ||||||
| Achnanthaceae | ||||||
| Lemnicola hungarica | 16,000 | |||||
| Achnanthidiaceae | ||||||
| Achnanthes pinnata | 54,000 | |||||
| Achnanthidium exiguum | 33,000 | |||||
| Achnanthidium minutissimum | 550,000 | 32,000 | 0.6 | 51,000 | 30,000 | |
| Planothidium dubium | 130,000 | 64,000 | 1.0 | 230,000 | ||
| Achnanthes hauckiana rostrata | 27,000 | 64,000 | 56,000 | 150,000 | 23,000 | |
| Planothidium lanceolatum | 27,000 | 0.5 | 23,000 | |||
| Cocconeidaceae | ||||||
| Cocconeis pediculus | 180,000 | 96,000 | 67,000 | 280,000 | 68,000 | |
| Cocconeis placentula euglypta | 81,000 | 96,000 | 1.0 | 89,000 | 330,000 | 53,000 |
| Cocconeis placentula lineata | 32,000 | 2.3 | 200,000 | |||
| Naviculales | ||||||
| Amphpleuraceae | ||||||
| Amphipleura pellucida | 27,000 | |||||
| Frustulia vulgaris | 15,000 | |||||
| Diadesmidaceae | ||||||
| Luticola cohnii | 15,000 | |||||
| Diploneidaceae | ||||||
| Diploneis puella | 32,000 | |||||
| Naviculaceae | ||||||
| Mayamaea atomus | 32,000 | |||||
| Geissleria decussis | 51,000 | 15,000 | ||||
| Hippodonta capitata | 27,000 | 0.3 | 150,000 | |||
| Navicula sp. | 2.7 | 170,000 | ||||
| Navicula cari | 13,000 | |||||
| Navicula cincta rostrata | 410,000 | 0.3 | 22,000 | 45,000 | ||
| Navicula convergens | 13,000 | 22,000 | ||||
| Navicula cryptocephala | 48,000 | 0.3 | ||||
| Navicula genovefae | 51,000 | |||||
| Navicula gregaria | 27,000 | 0.6 | 33,000 | 51,000 | 7,600 | |
| Navicula lanceolata | 15,000 | |||||
| Navicula luzonensis | 22,000 | |||||
| Navicula menisculus | 100,000 | |||||
| Navicula minima | 130,000 | 0.3 | 45,000 | 51,000 | ||
| Navicula rhynchocephala germainii | 54,000 | 80,000 | 3.7 | 200,000 | 200,000 | |
| Navicula salinarum intermedia | 160,000 | 64,000 | 2.4 | 67,000 | 150,000 | 150,000 |
| Navicula secreta apiculata | 54,000 | 32,000 | 0.8 | 50,000 | 53,000 | |
| Navicula tripunctata schizonenoides | 48,000 | |||||
| Navicula viridula avenacea | 0.3 | 15,000 | ||||
| Neidiaceae | ||||||
| Neidium dubium | 25,000 | |||||
| Pinnulariaceae | ||||||
| Caloneis amphisbaena | 0.3 | 51,000 | ||||
| Caloneis bacillum | 0.3 | 45,000 | ||||
| Coloneis ventricosa truncatula | 51,000 | 15,000 | ||||
| Pleurosigmataceae | ||||||
| Pleurosigma elongatum | 51,000 | |||||
| Sellaphoraceae | ||||||
| Sellaphora pupula | 27,000 | 80,000 | 22,000 | 150,000 | 22,000 | |
| Sellaphora pupula rectangularis | 27,000 | 0.3 | ||||
| Thalassiophysales | ||||||
| Catenulaceae | ||||||
| Amphora ovalis pediculus | 32,000 | 51,000 | 23,000 | |||
| Bacillariales | ||||||
| Bacillariaceae | ||||||
| Nitzschia acicularis | 0.8 | 18,000 | ||||
| Nitzschia amphibia | 32,000 | 51,000 | ||||
| Nitzschia bacata | 1.3 | 15,000 | ||||
| Nitzschia dissipata | 1.6 | 22,000 | ||||
| Nitzschia dissipata media | 0.3 | 15,000 | ||||
| Nitzschia frequens | 13,000 | 0.6 | ||||
| Nitzschia frustulum | 270,000 | 540,000 | 0.6 | 45,000 | 250,000 | 15,000 |
| Nitzschia frustulum perminuta | 390,000 | 64,000 | 0.5 | 56,000 | 100,000 | 15,000 |
| Nitzschia frustulum subsalina | 27,000 | 380,000 | 2.3 | 89,000 | 280,000 | 61,000 |
| Nitzschia kuetzingiana | 54,000 | 110,000 | 1.9 | 45,000 | 100,000 | 36,000 |
| Nitzschia linearis | 15,000 | |||||
| Nitzschia linearis tenuis | 0.2 | |||||
| Nitzschia palea | 81,000 | 64,000 | 2.1 | 22,000 | 110,000 | |
| Nitzschia reversa | 25,000 | 7,600 | ||||
| Nitzschia romana | 22,000 | |||||
| Nitzschia subtilis | 32,000 | 0.3 | 11,000 | |||
| Tryblionella hungarica | 0.2 | 100,000 | ||||
| Tryblionella levidensis | 48,000 | |||||
| Tryblionella victoriae | 11,000 | |||||
| Rhopalodiales | ||||||
| Rhopalodiaceae | ||||||
| Epithemia sorex | 310,000 | 130,000 | 0.5 | 67,000 | 230,000 | |
| Epithemia turgida | 22,000 | 15,000 | ||||
| Rhopalodia gibba | 33,000 | |||||
| Rhopalodia gibberula | 13,000 | 23,000 | ||||
| Rhopalodia musculus | 32,000 | |||||
| Surirellales | ||||||
| Surirellaceae | ||||||
| Cymatopleura solea | 22,000 | 15,000 | ||||
| Surirella angusta | 51,000 | |||||
| Surirella ovata | 30,000 | |||||
| Surirella suecica | 16,000 | 22,000 | 51,000 | |||
| CHLOROPHYTA | ||||||
| Chlorophyceae | ||||||
| Chlorococcales | ||||||
| Micractiniaceae | ||||||
| Micractinium pusillum | 120,000 | |||||
| Oocystaceae | ||||||
| Ankistrodesmus falcatus | 18,000 | |||||
| Scenedesmaceae | ||||||
| Scenedesmus acutus | 1,200,000 | |||||
| Scenedesmus bijuga | 71,000 | |||||
| Scenedesmus denticulatus | 170,000 | 96,000 | ||||
| Scenedesmus dimorphus | 570,000 | 60,000 | ||||
| Scenedesmus quadricauda | 140,000 | 160,000 | 35,000 | |||
| Scenedesmus serratus | 71,000 | |||||