Aquatic Conservation: Marine and Freshwater Ecosystems

article

Preface

Paul J. Raven, Mark Diamond

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S2 - S3

article

Developing standard approaches for recording and assessing river hydromorphology: the role of the European Committee for Standardization (CEN)

Philip J. Boon, Nigel T.H. Holmes, Paul J. Raven

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S55 - S61

1. Over the last 20 years the concept of ‘freshwater quality’ has expanded to incorporate a range of physical, chemical, hydromorphological and biological characteristics. In Europe, this process has been given greater impetus by the EC Water Framework Directive (WFD) and the requirement for Member States to assess and monitor a comprehensive suite of freshwater features. 2. Assessments of river...

article

River habitats in a wider landscape context

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S1 - S1

article

Evaluating the effects of riparian restoration on a temperate river‐system using standardized habitat survey

E. Clews, I. P. Vaughan, S. J. Ormerod

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S96 - S104

1.The restoration of degraded riparian zones to improve a range of functions is attracting increasing interest, but there are still questions about (i) how effectively restoration changes riparian or channel conditions; (ii) whether riparian management offsets the effects of wider catchment pressures; and (iii) whether these effects can be detected quantitatively. 2.A catchment‐scale experiment was...

article

Embedding a strategic approach to river restoration in operational management processes — experiences in England

Chris P. Mainstone, Nigel T. H. Holmes

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S82 - S95

1. The restoration of riverine habitats that have been physically modified by man has gained momentum over the past two decades, driven by a number of objectives. Formalizing the planning and implementation of such activity, however, so that it demonstrably meets national and local environmental objectives without compromising essential societal needs such as flood risk management, has proved problematic...

article

Littoral macroinvertebrates as indicators of lake acidification within the UK

Ben McFarland, Fiona Carse, Leonard Sandin

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S105 - S116

1.The Water Framework Directive (WFD) requires the assessment of acidification in sensitive water bodies. Chemical and littoral macroinvertebrate samples were collected to assess acidification of clear and humic lakes in the UK. 2.Of three acid‐sensitive metrics that were regressed against acid neutralizing capacity (ANC) and pH, highly significant responses were detected using the Lake Acidification...

article

Linking ecological and hydromorphological data: approaches, challenges and future prospects for riverine science

I. P. Vaughan, S. J. Ormerod

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S125 - S130

1.Research linking river ecology and hydromorphology is driven by concerns about hydromorphological pressures (e.g. abstraction, land‐use change) and legislative (e.g. EU Water Framework Directive) or management needs (e.g. climate‐change adaptation). Unfortunately, much of the science is still weak or qualitative (cf. links between ecology and water quality). 2.Rapid progress is required, but financial...

article

Appraising riparian management effects on benthic macroinvertebrates in the Wye River system

Esther Clews, S. J. Ormerod

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S73 - S81

1.Agriculture, urbanization or forestry in river catchments can influence river organisms through diffuse effects on hydrology and hydrochemistry, or local effects on habitat character, bank erosion and sediment delivery. Riparian buffer zones are sometimes established to mitigate undesirable effects on salmonids, but consequences for organisms such as macroinvertebrates are less well known. 2.Riparian...

article

Habitat indices for rivers: derivation and applications

Ian P. Vaughan

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S4 - S12

1.River Habitat Survey (RHS) is the standard riverine hydromorphology survey in the UK and modified versions have been adopted in several other European Countries. It aims to broadly characterize physical features over 500 m reaches, but in so doing records more than 100 variables, often making interpretation and data analysis challenging. In such instances, synoptic treatment of the data, creating...

article

Interaction between macroinvertebrates, discharge and physical habitat in upland rivers

Michael J. Dunbar, Mark Warren, Chris Extence, Lucy Baker, more

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S31 - S44

1.There is a need to relate changing river flows to ecological response, particularly using methods which do not require extensive new data for water bodies without historical data. This paper describes how local‐scale habitat features and changing discharge appear to influence a macroinvertebrate‐based biotic index. 2.The study used 87 time‐series of river biomonitoring data from upland, wadeable...

article

The development of bird indicators for British fresh waters and wetlands

Mark Everard, David Noble

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S117 - S124

1.Population trends of breeding birds in freshwater habitats generated from long‐term monitoring in the UK provide biodiversity indicators for some wetland habitats. 2.Bird species were assigned to target wetland habitats based on evidence of their association and data availability. Species trends for each habitat were then modelled using a range of survey data from BTO schemes including the Common...

article

Understanding ‘hot‐spot’ problems in catchments: the need for scale‐sensitive measures and mechanisms to secure effective solutions for river management and conservation

Malcolm Newson

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S62 - S72

1.Regulatory progress in controlling point sources of chemical river pollution has progressively thrown the attention of public policy towards anthropogenic physical impacts, many of which are scaled to the catchment via the runoff/sediment system. At the same time, concern over diffuse chemical pollution has reinforced ‘catchment consciousness’: land‐use and land‐management planning and control must...

article

Daubenton's bat distribution along rivers – developing and testing a predictive model

Steve D. Langton, Philip A. Briggs, Karen A. Haysom

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S45 - S54

1.This study aimed to develop and test a predictive model of Daubenton's bat Myotis daubentonii distribution and abundance at waterway sites in England and Wales. 2.A preliminary ‘core’ model to predict Daubenton's bat distribution, developed in 2003 and containing terms relating to biological water quality, waterway width, mean annual discharge and the presence of trees, was re‐fitted to more comprehensive...

article

Benchmarking habitat quality: observations using River Habitat Survey on near‐natural streams and rivers in northern and western Europe

Paul J. Raven, Nigel T.H. Holmes, Ian P. Vaughan, F. Hugh Dawson, more

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > S1 > S13 - S30

1.Some ecological effects of physically modifying rivers are still unclear, partly due to scale factors, but also because the character of high quality habitat is poorly understood. 2.Surveys at 278 sites on 141 near‐natural streams and rivers in northern and western Europe were carried out between 1994 and 2009 to benchmark the habitat quality assessment system used for River Habitat Survey (RHS)...

article

Chagos feels the pinch: assessment of holothurian (sea cucumber) abundance, illegal harvesting and conservation prospects in British Indian Ocean Territory

A. R. G. Price, A. Harris, A. Mcgowan, A. J. Venkatachalam, more

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > 1 > 117 - 126

1.Data are analysed from visual censuses of shallow‐water holothurians (sea cucumbers) in 72 shallow water transects 100 m×2 m within four atolls of Chagos. Mean holothurian abundance in Diego Garcia, where harvesting is absent, was 18.5 individuals/transect (all transects) and 55.4 individuals/transect (only those containing holothurians). In the three exploited atolls, mean abundance did not exceed...

article

Trophic mass balanced models and dynamic simulations of benthic communities from La Rinconada Marine Reserve off northern Chile: network properties and multispecies harvest scenario assessments

Marco Ortiz, Miguel Avendaño, Marcela Cantillañez, Fernando Berrios, more

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > 1 > 58 - 73

1.Mass balanced trophic models and dynamic simulations of two benthic ecological systems from La Rinconada Marine Reserve (Antofagasta Bay, SE Pacific) were constructed. 2.The scallop Argopecten purpuratus is the most important benthic resource in La Rinconada Marine Reserve, followed by the carnivorous snail Thais chocolata, and the filter‐feeder bivalves Tagelus dombeii and Transennella pannosa...

article

Reconstructing the history of human impacts on coastal biodiversity in Chile: constraints and opportunities

Marcelo M. Rivadeneira, Calogero M. Santoro, Pablo A. Marquet

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > 1 > 74 - 82

1.Although Chile is at the forefront in evaluating experimentally the importance of human harvesting impacts on coastal biodiversity, there are no evaluations of such impacts on a long‐term historical basis (tens to thousands of years). Different types of archival information (i.e. contemporaneous, archaeological, and palaeontological) were used to carry out a research programme based on the historical...

article

Impact of recreational power boating on two populations of northern map turtles (Graptemys geographica)

G. Bulté, M.‐A. Carrière, G. Blouin‐Demers

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > 1 > 31 - 38

1.Recreational power boating is growing in popularity in North America. This activity is known to have lethal and sub‐lethal effects on aquatic wildlife and freshwater turtles may be particularly sensitive to this activity. 2.This study reports on patterns of traumatic injuries inflicted by powerboat propellers to northern map turtles (Graptemys geographica) from two sites differing in boat traffic...

article

Morphological characteristics of on‐farm water storages and their similarity to natural water bodies in the Border Rivers Catchment, Australia

Susan Lutton, Fran Sheldon, Stuart E. Bunn

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > 1 > 47 - 57

1.Natural wetlands throughout the world are under threat from water resource development required to support an ever increasing population. In the Border Rivers Catchment in Queensland, Australia, a large irrigation industry and highly variable flow regime have necessitated the building of large on‐farm water storages. With the decline in number and size of natural wetlands, the presence of these...

article

Habitat suitability analysis for lacustrine brown trout (Salmo trutta) in Lake Walchensee, Germany: implications for the conservation of an endangered flagship species

Marco Denic, Juergen Geist

Aquatic Conservation: Marine and Freshwater Ecosystems > 20 > 1 > 9 - 17

1.The lacustrine brown trout (Salmo trutta) is endangered and of high conservation importance. In the only spawning habitat of the population in the Bavarian Lake Walchensee, the River Obernach, a substantial decrease in spawning runs has been reported. In this study, the present ecological state of the spawning stream was analysed with the objective of identifying life‐stage specific limitations...

INFONA - science communication portal

Aquatic Conservation: Marine and Freshwater Ecosystems

Preface

Developing standard approaches for recording and assessing river hydromorphology: the role of the European Committee for Standardization (CEN)

River habitats in a wider landscape context

Evaluating the effects of riparian restoration on a temperate river‐system using standardized habitat survey

Embedding a strategic approach to river restoration in operational management processes — experiences in England

Littoral macroinvertebrates as indicators of lake acidification within the UK

Linking ecological and hydromorphological data: approaches, challenges and future prospects for riverine science

Appraising riparian management effects on benthic macroinvertebrates in the Wye River system

Habitat indices for rivers: derivation and applications

Interaction between macroinvertebrates, discharge and physical habitat in upland rivers

The development of bird indicators for British fresh waters and wetlands

Understanding ‘hot‐spot’ problems in catchments: the need for scale‐sensitive measures and mechanisms to secure effective solutions for river management and conservation

Daubenton's bat distribution along rivers – developing and testing a predictive model

Benchmarking habitat quality: observations using River Habitat Survey on near‐natural streams and rivers in northern and western Europe

Chagos feels the pinch: assessment of holothurian (sea cucumber) abundance, illegal harvesting and conservation prospects in British Indian Ocean Territory

Trophic mass balanced models and dynamic simulations of benthic communities from La Rinconada Marine Reserve off northern Chile: network properties and multispecies harvest scenario assessments

Reconstructing the history of human impacts on coastal biodiversity in Chile: constraints and opportunities

Impact of recreational power boating on two populations of northern map turtles (Graptemys geographica)

Morphological characteristics of on‐farm water storages and their similarity to natural water bodies in the Border Rivers Catchment, Australia

Habitat suitability analysis for lacustrine brown trout (Salmo trutta) in Lake Walchensee, Germany: implications for the conservation of an endangered flagship species

Filter options

Publication date

Volume

Keywords

INFONA - science communication portal

Aquatic Conservation: Marine and Freshwater Ecosystems

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Volume

Keywords

Reporting an error / abuse

Sending the report failed

Accessibility options