Mapping and Surveys

 

Envision is capable of rapid response to survey and assessment needs. From quick video surveys to assessment of a shipgroundings, Envision can mobilise and deploy equipment quickly when requested.

Habitat Mapping

Envision has been at the forefront of habitat mapping for many years, and has participated in national and international initiatives for developing and standardising protocols. We interpret survey data collected either by ourselves or externally and undertake mapping projects employing GIS modelling techniques. Our experience covers a range of marine habitats from temperate to tropical ecosystems.

Seabed Surveys

Envision has a range of acoustic equipment which enables the survey of marine habitats covering the continental shelf and are fully conversant with the analysis and interpretation of the data. Envision uses swath bathymetric systems, side-scan sonar, single beam echo sounders and acoustic ground discrimination systems, in combination with benthic sampling, such as video and grab sampling. We participate in research programs developing techniques to survey the marine benthic environment. Our knowledge and experience has been invaluable to clients to ensure that surveys deliver outputs which are fit for purpose.

Video Analysis

Underwater video analysis is a sampling technique that can provide semi-quantitative or fully quantitative data for environmental assessment. Having pioneered the use of small dropdown/towed camera systems, Envision has a long history of developing video sampling techniques and protocols for the analysis of video footage of the seafloor, with expertise in taxonomy and species identification, assessment of substrate composition and biotope allocation. In addition to the routine standard high definition systems, we also design small, rugged high quality and high definition camera systems for use in adverse conditions.

Ship Grounding Assessment

Envision works within a consortium, SEAGROUND, to provide invaluable advice and environmental consultancy services for ship grounding on reefs in temperate and tropical waters. Our team of experts use scientifically robust methodologies and technologies to enable an independent and verifiable assessment of any damage to natural resources and the environment. Guidance and advice is provided rapidly and efficiently to ensure any impact is minimised throughout the life cycle of a ship grounding.

Seabed Mapping of the Wash and Thames

Surveys and Mapping  Side scan sonar image of rocky habitat
 

A study into potential new areas of conservation including the Annex 1 habitats 'reefs' and 'submerged sandbanks', was performed in conjunction with Entec UK using GIS, desktop reviews and surveys. Results from the analysis of existing data and biological, video and acoustic surveys of the Outer Wash and Greater Thames areas are being fed into the regulatory conservation process.


Natural England

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