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In Latin America and the Caribbean, river restoration projects are increasing, but many lack strategic planning and monitoring. We tested the applicability of a rapid visual social–ecological stream assessment method for restoration planning, complemented by a citizen survey on perceptions and uses of blue and green infrastructure. We applied the method at three urban streams in Jarabacoa (Dominican Republic) to identify and prioritize preferred areas for nature-based solutions. The method provides spatially explicit information for strategic river restoration planning, and its efficiency makes it suitable for use in data-poor contexts. It identifies well-preserved, moderately altered, and critically impaired areas regarding their hydromorphological and socio-cultural conditions, as well as demands on green and blue infrastructure. The transferability of the method can be improved by defining reference states for assessing the hydromorphology of tropical rivers, refining socio-cultural parameters to better address river services and widespread urban challenges, and balancing trade-offs between ecological and social restoration goals. Supplementary Information The online version contains supplementary material available at 10.1007/s13280-021-01565-3.

Managing riparian corridors for flood resilience requires understanding of linkages between vegetation condition and stream geomorphology. Stream assessment approaches increasingly use channel morphology as an indicator of stream condition, with only cursory examination of riparian vegetation. Our research (i) examines relationships between stream geomorphic condition, as assessed by Rapid Geomorphic Assessment (RGA) scores, and riparian forest structure, and (ii) investigates scale dependencies in the linkages between land cover and stream geomorphology. We sampled vegetation structure and composition and assessed geomorphic condition at 32 stream reaches within the Lake Champlain Basin, USA. RGA scores were modeled as a function of structural attributes using classification and regression trees. Landsat coverages were used to delineate land uses within five nested spatial scales. Generalized linear models (GLM) evaluated relationships between land cover and RGA scores. Standard deviation of basal area partitioned the greatest variability in RGA scores, but dead tree density and basal area (positively) and shrub density (negatively) were also significant predictors. RGA was related to forest and agricultural cover at the two finest scales. Riparian forest structure is highly dynamic in relation to stand development and disturbance history; simple forest cover information does not capture these differences or their influences on stream geomorphic condition.

Decisions that impact the quality of aquatic systems are being made daily throughout the world based on little or no ecological information (Barbour et al., 2004). Monitoring information, based on scientifically and rigorously tested ecological indicators, is integral to water quality management programs for protecting human health, preserving and restoring ecosystem integrity, and sustaining a viable economy. Under the Clean Water Act of the United States, water quality agencies of the states and tribes are required to conduct monitoring and assessment to address the mandates of the law. However, recent critiques of water monitoring programs have claimed that the United States Environmental Protection Agency (U.S. EPA) and State water quality agencies cannot make statistically valid inferences about water quality and the condition of the Nation's waters, i.e., whether they are improving, degrading or remaining the same; furthermore, we lack data to support management decisions regarding the Nation's aquatic resources. The National Wadeable Streams Assessment Program (WSA) was established in early 2004 to answer the question of what is the status of the Nation's waters, and to maximize partnerships among U.S. EPA, States and Tribes, and other agencies to establish a framework to address issues at state and local scales. Ecological data in any form require some measure of translation to be useable by the environmental manager, i.e., a hierarchy exists in the translation process from basic biological data in its rawest form through a series of manipulations in the analysis phase to reporting of the results and interpretation. This nationally focused program is a step towards ensuring adequate monitoring data exist in the future to assess water quality and make sound watershed management decisions throughout the USA; actions are taken to protect and restore water quality that maximize benefits and minimize costs; and sound science forms the basis of making informed decisions regarding our aquatic resource. Diariamente se están tomando decisiones que inciden en la calidad de los sistemas acuáticos basadas en escasa o ninguna información ecológica (Barbour et al., 2004). La información obtenida en programas de gestión, basada en indicadores cient'ıficos y basados en indicadores ecológicos, se integra en programas de gestión de la calidad del agua para la protección de la salud humana, la preservación o restauración de la integridad de los ecosistemas y el sostenimiento de una economía viable. Por mandato del Acta sobre el Agua Limpia de los Estados Unido, se han creado agencias a nivel de Estados o regiones para realizar programas de estudio y gestión para cumplir el mandato de la ley. No obstante, recientemente han surgido críticas a los programas de gestión señalando que la Agencia de Protección Ambiental de los Estados Unidos (U.S. EPA) y las agencias de calidad del agua estatales no pueden realizar inferencias estadísticamente válidas acerca de la calidad del agua y de la situación de las aguas de la nación, p. e. si estan mejorando, degradando o permanecen igual. Además, no tenemos datos para apoyar las decisiones de gestión en relación con los recursos acuáticos nacionales. El Programa de Estudio de los Ríos Vadeables (WSA) se estableció en 2004 para responder a la pregunta de cual es la situación de las aguas de la nación, y para maximizar la colaboración entre U.S. EPA, y las agencias estatales, locales y similares para realizar un marco de trabajo que permita establecer los objetivos a escalas estatal y local. La información ecológica de cualquier tipo requiere algunas medidas de traducción para que sea utilizable por los gestores ambientales, p. e. existe una jerarquía en el proceso de traslación desde datos biológicos básicos, en su forma poco elaborada, hasta una serie de manipulaciones en la fase de análisis para los informes de resultados y su interpretación. Este programa enfocado a nivel nacional es un paso para asegurar que existen datos adecuados de gestión a través de todo el país. Se están realizando actuaciones para proteger y mejorar la calidad del agua que maximice los beneficios y minimice los costes a la vez que establezcan las bases científicas para tomar decisiones teniendo en cuenta nuestros recursos acuáticos.

We compared two stream water quality biomonitoring methods used by the environmental agencies of the state of Georgia. One uses fish communities; the other uses benthic macroinvertebrate populations. Five wadeable streams of varying water quality, size, and impacts in the greater Atlanta area were selected as study sites at which both bioassessment protocols were carried out, along with a physical habitat assessment. To compare the protocols, we examined correlations between specified indices of stream health based on each protocol as well as correlations among their individual components. Although general classification of the five streams by the indices from the protocols was consistent, the indices for stream assessment themselves were not correlated. Furthermore, many component metrics were not correlated with their index, especially for the fish indices. As a result, these indices may need to be considered and modified to reflect properly stream impact and degradation.

In the past, no single standardised method for sampling and sorting benthic macroinvertebrates has been implemented in Germany. Therefore, we tested the suitability of two common sorting protocols, RIVPACS and AQEM/STAR, by taking samples with each protocol at 44 sampling sites. Our results reveal that different methods deliver slightly different assessment results. Moreover these two methods differ in costs. Although the AQEM/STAR protocol takes longer than the RIVPACS protocol, we favoured the AQEM/STAR protocol because of its higher level of standardisation. In order to limit costs to an acceptable level, a modification of the AQEM/STAR protocol (MAS method) is developed. This method is highly standardised, gives stable assessment results and is relatively inexpensive (€ 224.00 for processing of an average sample). A detailed protocol of the newly developed method is given.

We developed a new Multimetric Index for stream assessment, which is mainly focussed on the impact of hydromorphological degradation on the macroinvertebrate fauna. The index was developed for five German stream types, three of which are located in the lowlands of Northern Germany and two in the lower mountainous areas. For each stream type sites representing different stages of hydromorphological degradation were investigated; the macroinvertebrate fauna of each site was sampled two or three times in 2000 (83 sites and 174 samples altogether). In addition, more than 200 parameters describing the hydromorphology of the sites have been recorded.