Optimizing a method for nutrient uptake bioassays

L Boyero’s team in the field

CITYPOLL project

MERLIN project

Aerial pictures of dams:

Sampling reaches upstream and downstream of dams:

Meetings and workshops:

RiMSEC Project

DryFlux Project

Desembalse Project

Diversion Project

Globaqua Project

In the field

  • Sampling at Prades (Baix Camp, Tarragona) in June for Globaqua project. Here Arturo Elosegi and Olatz Pereda are sampling with people from ICRA: Vicenc Acuña, Jordi Rene Mor and Ferran Romero.
  • Vicenc Acuña and Olatz Pereda taking wodden sticks from a dried riverbed in Poboleda (Tarragona) for the campaign of June of Globaqua project.
  • A picture of the wodden sticks deploied at Baix Ebre on the campaign of June of Globaqua project.
  • Sampling at Erroiarri stream (Navarre).
  • Emergency trap at Leitzaran river
  • Sampling macroinvertebrates at Leitzaran river.
  • Leitzaran river.
  • Leitzaran ready to go!
  • Sanpling macroinvertebrates at Leitzaran river.

Stream ecology team in 2013

AIL 2012 at Guimaraes (Portugal)

  • Arturo Elosegi at Guimaraes 2012.
  • From left to right: Lorea Flores, Jon Molinero, Ibon Aristi, Anna Giorgi, Maite Arroita and Carlos Alonso.
  • Aingeru Martínez and Javier Pérez at the Congress Dinner.
  • Technical trip to Peneda-Gêres National Park.
  • Kayak tour along the river Cavado.
  • Javier Pérez (not a rastaman) and Aingeru Martínez (rastaman).
  • From left to right: Anna Giorgi and Lorea Flores.
  • From left to right: Ibon Aristi and David Soto.

RIOTEM study sites

  • Cuchillo stream.
  • Peñalar stream.
  • Pozo Negro stream.
  • Peñaranda stream.
  • Lagarma stream.
  • Argañeda stream.
  • Lendoño stream (wet and dry).

SCARCE study sites

  • Study reach in Cinca river.
  • Study reach in Cinca river.
  • Siurana river.
  • Siurana river.
  • Siurana dam.
  • Siurana dam.
  • View of Ara river.

In the field

  • Small thermometer.
  • Big thermometer.
  • Measuring discharge on site.
  • Dry bags in a dry stream.
  • Caddisfly.
  • Sampling Argañeda stream in a rainy day.
  • A frog at Peñaranda stream.
  • Sampling Siurana river in summer.
  • Maite Arroita at Siurana river.
  • Sampling Siurana river in summer.
  • Preparing a nutrient retention experiment at Siurana river.
  • Team change the tire and I whistle.

The staff

  • 6th Symposium for European Freshwater Sciences in Sinaia (Rumania, 2009)
  • IMPARIOS project meeting (Esporles, Mallorca). From left to right: Jesús Casas, Enrique Descals, Aitor Larrañaga, Aingeru Martínez, Javier Pérez, Carmen Casado, Margarita Menéndez and Jesús Pozo.
  • From left to right: Jesús Pozo, Ana Basaguren, Javier Pérez, Aingeru Martínez and Aitor Larrañaga.
  • From left to right: Joserra Díez, Jesús Pozo and Manuel Molles
  • Interviewing Michael Mutz for Basque television
  • Jochem Kaile visiting a restored stream
  • Master students during a field trip
  • Eugenia Martí during the demonstration of a nutrient addition experiment
  • Jack Webster (front) and Roger Young (back)
  • Arturo Elosegi (left) and Sergi Sabater (right)

In the laboratory

  • Fresh alder leaves
  • Dried leaves
  • Filling leaf bags
  • Finished leaf bags

In the field

  • Sampling benthic CPOM
  • Placing bags inside a gravel bar for determining breakdown rates
  • Stream restoration works
  • Pool created after stream restoration
  • Measuring stream metabolism in PVC chambers
  • Harvesting of a eucalyptus plantation after 7 years of litterfall mesurements
  • Sampling site in the Agüera stream


  • A good catch!!!!
  • Fishing team in action
  • Fishing team in action

Litter exclusion experiment

  • External view
  • External view
  • Internal view

Feeding experiments

  • Leaf conditioning
  • Preparation of delicious leaf discs
  • Incubation chamber