Document of bibliographic reference 319661

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

Cost-effective coastal habitat mapping: detecting intertidal polychaete aggregations with low-altitude photogrammetry

Abstract

Intertidal polychaete aggregations may be protected in the European Union under the Habitats Directive framework as reef habitats. Remote reef mapping remains challenging due to severe and dynamic conditions, as well as cover and spatial resolution requirements. This study (1) evaluated kite aerial photography and low-altitude digital photogrammetry to map and monitor intertidal aggregations of a sessile tube-building polychaete, Lanice conchilega (L. conchilega), and (2) developed a protocol for its remote identification. Monthly campaigns yielded 12 aerial image sets which were processed using structure-from-motion into high-precision digital terrain models and orthophoto mosaics. Maximum likelihood classification distinguished L. conchilega from bare sediment with an accuracy of 70% ± 23.2%. Aggregations were delineated by extracting elements of positive elevation from local difference models. The method has proven useful to detect high-value aggregations, distinguishing these consistently. Nevertheless, systematic biases were present during delineation, and further characterisation of reference aggregations may improve detection.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:000498460100007

Bibliographic citation

Alves, R.M.S.; Van Colen, C.; Rabaut, M.; De Wulf, A.; Vincx, M.; Stal, C. (2019). Cost-effective coastal habitat mapping: detecting intertidal polychaete aggregations with low-altitude photogrammetry. Photogramm. Eng. Remote Sens. 85(12): 899-905. https://dx.doi.org/10.14358/PERS.85.12.899

Is peer reviewed

true