Doubs: The Doubs fish data

Description Usage Format Details Source References See Also Examples

Description

Fish community composition of the Doubs River, France.

Usage

1

Format

Contains three matrices: Doubs.fish the abundance of 27 fish species.

Doubs.env 9 environmental variables (all quantitative).

Doubs.geo geographic information of the samples.

Details

Values in Doubs.fish are counts of individuals of each of 27 species observed in a set of 30 sites located along the 453 km long Doubs River, France (see Verneaux 1973 for further details about fishing methods and effort).

Doubs.env contains 11 quantitative variables, namely the slope (slo 1/1000) and mean minimum discharge (flo m³/s) of the river, the pH of the water, its harness (Calcium concentration; har; mg/L), phosphate (pho; mg/L), nitrate (nit; mg/L), and ammonium (amm; mg/L), concentration as well as its dissolved oxygen (oxy; mg/L) and biological oxygen demand (bdo; mg/L).

Doubs.geo contains geographical information. Lon, the longitude and Lat, the latitude of the sample (degree) as well as DFS, its distance from the source of the river (km) and Alt, altitude (m above see level).

Source

Verneaux, 1973

References

Verneaux J. 1973. - Cours d'eau de Franche-Comté (Massif du Jura). Recherches écologiques sur le réseau hydrographique du Doubs. Essai de biotypologie. Thèse d'état, Besançon. 257 p.)

Verneaux, J.; Schmitt, V.; Verneaux, V. & Prouteau, C. 2003. Benthic insects and fish of the Doubs River system: typological traits and the development of a species continuum in a theoretically extrapolated watercourse. Hydrobiologia 490: 60-74

See Also

Borcard, D.; Gillet, F. & Legendre, P. 2011. Numerical Ecology with R. Springer, New-York, NY, USA.

Examples

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Example output

      CHA            TRU            VAI             LOC             OMB      
 Min.   :0.00   Min.   :0.00   Min.   :0.000   Min.   :0.000   Min.   :0.00  
 1st Qu.:0.00   1st Qu.:0.00   1st Qu.:0.000   1st Qu.:1.000   1st Qu.:0.00  
 Median :0.00   Median :1.00   Median :3.000   Median :2.000   Median :0.00  
 Mean   :0.50   Mean   :1.90   Mean   :2.267   Mean   :2.433   Mean   :0.50  
 3rd Qu.:0.75   3rd Qu.:3.75   3rd Qu.:4.000   3rd Qu.:4.000   3rd Qu.:0.75  
 Max.   :3.00   Max.   :5.00   Max.   :5.000   Max.   :5.000   Max.   :4.00  
      BLA              HOT           TOX              VAN       
 Min.   :0.0000   Min.   :0.0   Min.   :0.0000   Min.   :0.000  
 1st Qu.:0.0000   1st Qu.:0.0   1st Qu.:0.0000   1st Qu.:0.000  
 Median :0.0000   Median :0.0   Median :0.0000   Median :1.000  
 Mean   :0.6333   Mean   :0.6   Mean   :0.8667   Mean   :1.433  
 3rd Qu.:0.7500   3rd Qu.:1.0   3rd Qu.:2.0000   3rd Qu.:2.000  
 Max.   :5.0000   Max.   :3.0   Max.   :4.0000   Max.   :5.000  
      CHE             BAR             SPI           GOU             BRO       
 Min.   :0.000   Min.   :0.000   Min.   :0.0   Min.   :0.000   Min.   :0.000  
 1st Qu.:1.000   1st Qu.:0.000   1st Qu.:0.0   1st Qu.:0.000   1st Qu.:0.000  
 Median :2.000   Median :0.000   Median :0.0   Median :1.000   Median :1.000  
 Mean   :1.867   Mean   :1.433   Mean   :0.9   Mean   :1.833   Mean   :1.333  
 3rd Qu.:3.000   3rd Qu.:3.000   3rd Qu.:1.0   3rd Qu.:3.750   3rd Qu.:2.000  
 Max.   :5.000   Max.   :5.000   Max.   :5.0   Max.   :5.000   Max.   :5.000  
      PER           BOU           PSO              ROT           CAR        
 Min.   :0.0   Min.   :0.0   Min.   :0.0000   Min.   :0.0   Min.   :0.0000  
 1st Qu.:0.0   1st Qu.:0.0   1st Qu.:0.0000   1st Qu.:0.0   1st Qu.:0.0000  
 Median :0.5   Median :0.0   Median :0.0000   Median :0.0   Median :0.0000  
 Mean   :1.2   Mean   :1.1   Mean   :0.9667   Mean   :0.7   Mean   :0.8333  
 3rd Qu.:2.0   3rd Qu.:2.0   3rd Qu.:1.7500   3rd Qu.:1.0   3rd Qu.:1.0000  
 Max.   :5.0   Max.   :5.0   Max.   :5.0000   Max.   :5.0   Max.   :5.0000  
      TAN           BCO              PCH           GRE             GAR     
 Min.   :0.0   Min.   :0.0000   Min.   :0.0   Min.   :0.000   Min.   :0.0  
 1st Qu.:0.0   1st Qu.:0.0000   1st Qu.:0.0   1st Qu.:0.000   1st Qu.:0.0  
 Median :1.0   Median :0.0000   Median :0.0   Median :0.000   Median :1.0  
 Mean   :1.5   Mean   :0.8667   Mean   :0.6   Mean   :1.267   Mean   :2.1  
 3rd Qu.:3.0   3rd Qu.:1.0000   3rd Qu.:0.0   3rd Qu.:2.000   3rd Qu.:5.0  
 Max.   :5.0   Max.   :5.0000   Max.   :5.0   Max.   :5.000   Max.   :5.0  
      BBO             ABL           ANG      
 Min.   :0.000   Min.   :0.0   Min.   :0.00  
 1st Qu.:0.000   1st Qu.:0.0   1st Qu.:0.00  
 Median :0.000   Median :0.0   Median :0.00  
 Mean   :1.033   Mean   :1.9   Mean   :0.90  
 3rd Qu.:1.750   3rd Qu.:5.0   3rd Qu.:1.75  
 Max.   :5.000   Max.   :5.0   Max.   :5.00  
      slo              flo              pH             har        
 Min.   : 0.200   Min.   : 0.84   Min.   :7.700   Min.   : 40.00  
 1st Qu.: 0.525   1st Qu.: 4.20   1st Qu.:7.925   1st Qu.: 84.25  
 Median : 1.200   Median :22.10   Median :8.000   Median : 89.00  
 Mean   : 3.497   Mean   :22.20   Mean   :8.050   Mean   : 86.10  
 3rd Qu.: 2.875   3rd Qu.:28.57   3rd Qu.:8.100   3rd Qu.: 96.75  
 Max.   :48.000   Max.   :69.00   Max.   :8.600   Max.   :110.00  
      pho              nit             amm              oxy        
 Min.   :0.0100   Min.   :0.150   Min.   :0.0000   Min.   : 4.100  
 1st Qu.:0.1250   1st Qu.:0.505   1st Qu.:0.0000   1st Qu.: 8.025  
 Median :0.2850   Median :1.600   Median :0.1000   Median :10.200  
 Mean   :0.5577   Mean   :1.654   Mean   :0.2093   Mean   : 9.390  
 3rd Qu.:0.5600   3rd Qu.:2.425   3rd Qu.:0.2000   3rd Qu.:10.900  
 Max.   :4.2200   Max.   :6.200   Max.   :1.8000   Max.   :12.400  
      bdo        
 Min.   : 1.300  
 1st Qu.: 2.725  
 Median : 4.150  
 Mean   : 5.117  
 3rd Qu.: 5.275  
 Max.   :16.700  
      Lon             Lat             DFS              Alt       
 Min.   :5.083   Min.   :46.71   Min.   :  0.30   Min.   :172.0  
 1st Qu.:6.142   1st Qu.:46.91   1st Qu.: 54.45   1st Qu.:248.0  
 Median :6.346   Median :47.19   Median :175.20   Median :395.0  
 Mean   :6.359   Mean   :47.13   Mean   :188.23   Mean   :481.6  
 3rd Qu.:6.784   3rd Qu.:47.33   3rd Qu.:301.73   3rd Qu.:782.0  
 Max.   :7.168   Max.   :47.48   Max.   :453.00   Max.   :934.0  

codep documentation built on May 2, 2019, 3:45 p.m.