LIMNOLOGICAL GREY LITERATURE: THE LIMNOIBERIA INITIATIVE
More often than not, many applied projects are funded by public and/or private money and, in return, technical reports are issued on stakeholder request, but unfortunately they are not published because those stakeholders usually lose interest very rapidly. Such reports usually rest at the bottom of a bookshelf or in a discarded ram memory of a poor computer, being overlooked for the years and decades to come. More often than it is advisable, the same reports are requested again in the near future without knowing that they already exist. In spite of stakeholders’ lack of interest, we still think that such a grey literature can be useful in the short- and long term. That is the reason why we dare disseminate those applied projects that have been requested to us; they are as e-reports at a token price.
All are written in Spanish with large summaries in English, and figure and table legends translated into English as well. Please, contact us if you are interested in obtaining a copy.
All are written in Spanish with large summaries in English, and figure and table legends translated into English as well. Please, contact us if you are interested in obtaining a copy.

A PRIMER ON THE LIMNOLOGY OF SOME CASTILIAN WETLANDS (CENTRAL SPAIN) (LimnoIberia # 1)
This e-book entails many limnological observations on some stagnant environments in both Castilian counties which were not studied previously. Most observations are structural (floras, faunas, chemistry), but they allow to envisage the biological richness that these small ecosystems harbour. The information can be used as a baseline to depict future changes in those environments.
This e-book entails many limnological observations on some stagnant environments in both Castilian counties which were not studied previously. Most observations are structural (floras, faunas, chemistry), but they allow to envisage the biological richness that these small ecosystems harbour. The information can be used as a baseline to depict future changes in those environments.

CABAÑEROS NATIONAL PARK (CENTRAL SPAIN): ABIOTIC CONDITIONS AND BOTANY OF AQUATIC ECOSYSTEMS (LimnoIberia # 2)
Cabañeros National Park is probably the best and large representation of Mediterranean forest in the Iberian Peninsula. An extremely good share of inland waters occurs there, covering temporary and permanent streams and stagnant waters, which are poorly known at present. This book reports physico-chemical and botanical data on them.
Cabañeros National Park is probably the best and large representation of Mediterranean forest in the Iberian Peninsula. An extremely good share of inland waters occurs there, covering temporary and permanent streams and stagnant waters, which are poorly known at present. This book reports physico-chemical and botanical data on them.

FLOR RIBERA (LimnoIberia # 3)
A fisherman recalls his long life in a flooding wetland (Las Tablas de Daimiel). He was the last fisherman living on that resource for more than 80 years.
A fisherman recalls his long life in a flooding wetland (Las Tablas de Daimiel). He was the last fisherman living on that resource for more than 80 years.

EFFECTS OF CARP WITHDRAWAL ON ZÓÑAR LAKE LIMNOLOGY (LimnoIberia # 4)
This book reports limnological and botanical data gathered from Zóñar lake (Córdoba, Southern Spain) before and after carp withdrawal carried out in June and July 2006. In addition to lake description, external water inputs, nutrient loadings, settling rates of particulate nutrients, nutrient dynamics, plankton dynamics and submerged plant responses are covered here over more than a year after carp withdrawal. The environmental management of this lake is also taken into account.
This book reports limnological and botanical data gathered from Zóñar lake (Córdoba, Southern Spain) before and after carp withdrawal carried out in June and July 2006. In addition to lake description, external water inputs, nutrient loadings, settling rates of particulate nutrients, nutrient dynamics, plankton dynamics and submerged plant responses are covered here over more than a year after carp withdrawal. The environmental management of this lake is also taken into account.

GUADARRAMA RIVER POLLUTION (LimnoIberia # 5)
This book deals with some interesting processes of water quality in Guadarrama river catchment (Madrid, Central Spain). Results report site location of wastewater inputs and water quality of streams (discharge, temperature, pH, salinity, dissolved oxygen, nutrients, heavy metals and organic compounds), mostly relating them to life conditions of fish. This information enables us to provide a picture of the current physic-chemical status of this catchment in Madrid County. Some recommendations for managing this impaired basin are reported intending to restore water quality of this stream environment.
This book deals with some interesting processes of water quality in Guadarrama river catchment (Madrid, Central Spain). Results report site location of wastewater inputs and water quality of streams (discharge, temperature, pH, salinity, dissolved oxygen, nutrients, heavy metals and organic compounds), mostly relating them to life conditions of fish. This information enables us to provide a picture of the current physic-chemical status of this catchment in Madrid County. Some recommendations for managing this impaired basin are reported intending to restore water quality of this stream environment.

THE AZOLLA INVASION OF WETLANDS (LimnoIberia # 6)
The aquatic tropical fern Azolla filiculoides invaded Doñana National Park wetlands (Southwestern Spain) during the last decade. This multiyear study reports the results of a research project, aimed at describing man-made and environmental conditions enhancing its mass development throughout most areas of the wetland. We also make some suggestions to tackle with their populations in the near future.
The aquatic tropical fern Azolla filiculoides invaded Doñana National Park wetlands (Southwestern Spain) during the last decade. This multiyear study reports the results of a research project, aimed at describing man-made and environmental conditions enhancing its mass development throughout most areas of the wetland. We also make some suggestions to tackle with their populations in the near future.

MENDIXUR BAY AS NUTRIENT TRAP (LimnoIberia # 7)
Mendixur bay is a water body connected to the Ullivarri-Ganboa reservoir (Alava), which is devoted to water supply and recreation for big cities (Vitoria, Bilbao) of Northern Spain. Mendixur bay is separated from the main reservoir body by a retention facility. Our study aimed at evaluating the performance of that bay for retention of nutrients coming from catchment wastewaters. The main processes removing nutrients are sedimentation and uptake by submerged macrophytes, which were measured over an annual cycle.
Mendixur bay is a water body connected to the Ullivarri-Ganboa reservoir (Alava), which is devoted to water supply and recreation for big cities (Vitoria, Bilbao) of Northern Spain. Mendixur bay is separated from the main reservoir body by a retention facility. Our study aimed at evaluating the performance of that bay for retention of nutrients coming from catchment wastewaters. The main processes removing nutrients are sedimentation and uptake by submerged macrophytes, which were measured over an annual cycle.

ENVIRONMENTAL IMPACT OF WASTEWATER TREATMENT PLANTS ON LAKES (LimnoIberia # 8)
Regrettably, many valuable limnosystems experience changes arising from entering partially treated wastewater. Its environmental effects are numerous and are reviewed in this book, dealing with case studies in Castilla-La Mancha County (Southern Spain). The book also makes some proposals to improve wastewater treatment in order to mitigate its effects on lakes and wetlands of the area.
Regrettably, many valuable limnosystems experience changes arising from entering partially treated wastewater. Its environmental effects are numerous and are reviewed in this book, dealing with case studies in Castilla-La Mancha County (Southern Spain). The book also makes some proposals to improve wastewater treatment in order to mitigate its effects on lakes and wetlands of the area.

CANTALEJO LIMNOLOGY (LimnoIberia # 9)
There are several shallow lakes in Cantalejo (Segovia, Central Spain) that experience treated wastewater inputs from a nearby treatment plant. In spite of the treatment, the environmental status of the lakes has been impaired for long. This book describes the hydrogeological local context, along with treatment plant performance and lake features, dealing with abiotic factors, plankton, macrophytes and macroinvertebrates. We also suggest some recommendations to improve environmental management of the lakes and their receiving polluted inputs.
There are several shallow lakes in Cantalejo (Segovia, Central Spain) that experience treated wastewater inputs from a nearby treatment plant. In spite of the treatment, the environmental status of the lakes has been impaired for long. This book describes the hydrogeological local context, along with treatment plant performance and lake features, dealing with abiotic factors, plankton, macrophytes and macroinvertebrates. We also suggest some recommendations to improve environmental management of the lakes and their receiving polluted inputs.

LIMNOLOGY OF SPANISH GUADIANA LAKES (LimnoIberia # 10)
The Guadiana catchment in Central Spain harbours a wide array of lakes, mostly salty or karstic. This book is the first attempt to consider their limnology jointly.
The Guadiana catchment in Central Spain harbours a wide array of lakes, mostly salty or karstic. This book is the first attempt to consider their limnology jointly.

LIMNOLOGY OF A URBAN ENVIRONMENT (LAS ROZAS DE MADRID, CENTRAL SPAIN). (LimnoIberia # 11)
It is uncommon that a city council pays for aquatic research within its territory. Las Rozas de Madrid is an 83,000 inhabitants’ city which has encouraged, promoted and paid for a long-term study of their natural aquatic environments, their wastewaters and the impacts these pose on those environments. This book encompasses all aquatic research undertaken from 2004 until 2013 in the area.
It is uncommon that a city council pays for aquatic research within its territory. Las Rozas de Madrid is an 83,000 inhabitants’ city which has encouraged, promoted and paid for a long-term study of their natural aquatic environments, their wastewaters and the impacts these pose on those environments. This book encompasses all aquatic research undertaken from 2004 until 2013 in the area.

SHORT LIMNOLOGY OF A RESERVOIR IMPACTED BY URBAN WASTEWATERS (LOS PEÑASCALES, MADRID, CENTRAL SPAIN) (LimnoIberia # 13)
Such a small reservoir was built in the early sixties and received raw wastewaters from a nearby town, 10 km away, for decades. Nowadays, they are partly treated but the reservoir has a large sedimentary record of nutrients which result in a high internal loading. The book describes wastewater impacts on the reservoir and their biological communities, also suggesting some measures to diminish them and restore this otherwise interesting environment.
Such a small reservoir was built in the early sixties and received raw wastewaters from a nearby town, 10 km away, for decades. Nowadays, they are partly treated but the reservoir has a large sedimentary record of nutrients which result in a high internal loading. The book describes wastewater impacts on the reservoir and their biological communities, also suggesting some measures to diminish them and restore this otherwise interesting environment.