Mating Call of the Plainfin Midshipman as an Indicator of Stress due to Anthropogenic Noise and Other Environmental Factors
Roger Bland, Newell Garfield, Matt Sanchez, Jemma Lorenat, Daniel Cuneo, and Ratna Lama
The calling of the Plainfin Midshipman (Porichthys notatus) in San Francisco Bay was recorded over the course of two summer mating seasons. A loud, continuous humming was observed during summer months, mainly during the night-time. This has been identified by others as the mating call of the male Midshipman.
The frequency and intensity of this call was measured for every 15-minute time interval. Three results of interest were obtained.
More work remains to draw conclusions about humming and ship noise; in particular, an effective computer algorithm for identifying the sound pattern from ships remains to be developed.