No Cover Image

Journal article 569 views

Seasonal and diel patterns in cetacean use and foraging at a potential marine renewable energy site / Hanna Nuuttila, Chiara M. Bertelli, Anouska Mendzil, Nessa Dearle

Marine Pollution Bulletin

Swansea University Authors: Hanna Nuuttila, Anouska Mendzil

Full text not available from this repository: check for access using links below.

Abstract

Marine energy (MRE) developments often coincide with sites frequented by whales and dolphins. To understand habitat use and assess potential impact from development, echolocation clicks were recorded with acoustic click loggers (C-PODs) in Swansea Bay, Wales (UK). General Additive Models (GAMs) were...

Full description

Published in: Marine Pollution Bulletin
ISSN: 0025326X
Published: 2017
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa36725
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract: Marine energy (MRE) developments often coincide with sites frequented by whales and dolphins. To understand habitat use and assess potential impact from development, echolocation clicks were recorded with acoustic click loggers (C-PODs) in Swansea Bay, Wales (UK). General Additive Models (GAMs) were applied to assess the effects of covariates including month, hour, tidal range and temperature. Analysis of inter-click intervals allowed the identification of potential foraging events as well as patterns of presence and absence. Data revealed year-round presence of porpoise, with distinct seasonal and diel patterns. Occasional acoustic encounters of dolphins were also recorded. This study provides further evidence of the need for assessing temporal trends in cetacean presence and habitat use in areas considered for development. These findings could assist MRE companies to monitor and mitigate against disturbance from construction, operation and decommissioning activities by avoiding times when porpoise presence and foraging activity is highest in the area.
Keywords: Marine renewable energy; Tidal lagoon; Harbour porpoise; Dolphin; Acoustic monitoring; Wales
College: College of Science