Fish and bottlenose dolphins react differently to life in the noisy shipping corridor of Charleston Harbor Estuary in South Carolina, USA, with fish calls and choruses decreasing with anthropogenic noise, and dolphins ramping up vocalizations. (IMAGE)
Caption
(A) Charleston Harbor Estuary is one of the busiest and fastest growing container ports in the southeast USA. Image credit: Lindsey Transue. (B) Six passive acoustic recorders were deployed from December 2017 to June 2019 to determine biological patterns and human-associated influences on the soundscape. Image credit: Agnieszka Monczak. (C) Long-term, fishery independent tag recapture program for red drum (Sciaenops ocellatus) performed by the South Carolina Department of Natural Resources (SCDNR). This fish was successfully tagged and released back into Charleston Harbor. Red drum may be particular sensitive to vessel noise because these fish call and chorus during the late afternoon into early evening, when recreational and commercial vessel noise is the highest. Image credit: Brock Renkas. (D) Bottlenose dolphin (Tursiops truncatus) breaching. In Charleston Harbor, these animals exhibited the Lombard effect and increased their vocalizations in the presence of vessel noise. Image credit: Meghan Gallipeau, NMFS Permit No. 18859 issued to Dr. Patricia Fair.
Credit
Collage created by Eric W. Montie, with images from Lindsey Transue (A), Agnieszka Monczak (B), Brock Renkas (C) and Meghan Gallipeau/Dr. Patricia Fair (D), CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
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Credit must be given to the creator.
License
CC BY