The bacteria identified in the Eslava River water samples in 2010.

<p>The bacteria identified in the Eslava River water samples in 2010.</p

Interannual variation of the NFRs, RFRs, mNFRs and mRFRs measured at hydrometric station 26440.

<p>Interannual variation of the NFRs, RFRs, mNFRs and mRFRs measured at hydrometric station 26440.</p

Daily volumetric flow regime (1973–2010) measured at the hydrometric station Santa Teresa (26440).

<p>Daily volumetric flow regime (1973–2010) measured at the hydrometric station Santa Teresa (26440).</p

Water flux distribution from 2008–2010 grouped by season.

<p>Water flux distribution from 2008–2010 grouped by season.</p

Spatial trend for the eight main water quality variables in the Magdalena River, based on 19 sampling stations.

<p>Spatial trend for the eight main water quality variables in the Magdalena River, based on 19 sampling stations.</p

Duration curve of annual natural and regulated flows, Magdalena river basin, 1973–2010.

<p>Duration curve of annual natural and regulated flows, Magdalena river basin, 1973–2010.</p

The sampling design for the Magdalena-Eslava river system.

<p>The sampling design for the Magdalena-Eslava river system.</p

The geometric mean, standard deviation in log scale, maximum and minimum of Coliphage, Enterovirus, Adenovirus, <i>Cryptosporidium parvum</i> oocysts and <i>Giardia lamblia</i> cysts in the Magdalena River water from 2008 to 2009.

<p><i>Cryptosporidium parvum and Giardia lamblia</i> detection limit 1 (oo)cyst/mL <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0102081#pone.0102081-TapiaPalacios1" target="_blank">[37]</a>; Adenovirus (AdV) detection limit 10 genome copies <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0102081#pone.0102081-Xagoraraki1" target="_blank">[34]</a>; Enterovirus (EV) detection limit 10 genome copies <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0102081#pone.0102081-SilvaMagaa1" target="_blank">[74]</a>; FRNA specific bacteriophage detection limit 1 PFU/mL <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0102081#pone.0102081-SolanoOrtiz1" target="_blank">[30]</a>, somatic bacteriophage detection limit 1 PFU/mL <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0102081#pone.0102081-SolanoOrtiz1" target="_blank">[30]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0102081#pone.0102081-Xagoraraki1" target="_blank">[34]</a>.</p

The bacteria identified in the Magdalena River water samples in 2008, 2009 and 2010.

<p>The bacteria identified in the Magdalena River water samples in 2008, 2009 and 2010.</p

Spatial trend for the eight main water quality variables in the Eslava River, based on eight sampling stations.

<p>Spatial trend for the eight main water quality variables in the Eslava River, based on eight sampling stations.</p