Our Projects and Case Studies

UK and Overseas Experience

Carcinus Ltd. operates throughout the UK and overseas with our environmental consultants, ecologists and surveyors working within both freshwater and marine environments, providing expert advice and support for a diverse range of projects.

Our more recent projects are presented within the map below:

Case Studies

We offer a diverse range of services to a broad client base. Highlighted below are case studies for some of our more recent or novel projects:

Processing fish ecology samples

Marine Environmental Survey – Victoria Harbour, Hartlepool

Carcinus was commissioned to design and implement a multidisciplinary marine ecological survey of the approach channel and turning basin of Victoria Harbour, Hartlepool. The purpose of the study was to inform an Environmental Impact Assessment (EIA), with respect to predicted impacts of the proposed dredging and construction operations associated with scheme.
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Benthic fauna sample processing

Benthic Ecology and Sediment Chemistry Survey

Carcinus Limited was commissioned to provide specialist marine ecology survey and reporting services in support of a new vessel lay-by berth within the entrance to the River Medina, East Cowes for the purposes of informing a marine licence application for dredge spoil disposal and an ecological impact assessment. The potential environmental effects originating from the proposed development were identified and screened. The need for a comprehensive sediment sampling programme was identified and delivered, to fully characterise the subtidal benthic ecology and sediment chemistry within and surrounding the proposed development.
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River Habitat Survey & Impact Assessment

Carcinus Ltd was commissioned by Hampshire County Council (HCC) to deliver river habitat surveys and impact assessment consultancy services with a focus on fish ecology in support of a proposed flood alleviation project in Winchester on the River Itchen. The project was in its initial phases and a baseline characterisation of the existing fisheries and fish habitats and initial environmental assessment to inform engineering considerations was required.
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Quantitative lamprey electrofishing survey

Lamprey Survey Population Assessment – River Itchen SAC SSSI

Carcinus Ltd was commissioned by Natural England and the Environment Agency to undertake a catchment wide lamprey population study on the River Itchen, Hampshire. The River Itchen is a designated Special Area of Conservation (SAC) and a Site of Special Scientific Interest (SSSI). The river forms part of Natural England’s “Hampshire chalk catchment” focus area and covers approximately 310 hectares of classic chalk river.
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Barrier to migratory fish migration

Fish Habitat Assessment & Enhancement Study

Carcinus Ltd was commissioned by Hampshire County Council (HCC) to deliver fish habitat assessment surveys and habitat enhancement consultancy services in support of the high-profile Botley Bypass highways project. The project has been permitted after passing through the Environmental Impact Assessment (EIA) process and planning phase. The scheme will involve the crossing of two watercourses, the first being the River Hamble by a new free-span bridge and the second located at Woodhouse Gully / Pudbrook Lake, where an existing culvert will be replaced.
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