Representation of Complex Vocalizations in the Lusitanian Toadfish Auditory System: Evidence of Fine Temporal, Frequency and Amplitude Discrimination

Description

Detection

Species Identified

Sound Detected

Examination Types

Morphophysiological

Auditory

Visual

Sound Types Detected

Active

Passive Feeding

Other Passive

Additional Details

Full Description

"We also considered a mate advertising call emitted by a male meagre A. regius (Sciaenidae) previously recorded in the Guadiana River, Portugal (N. Prista & M. C. P. Amorim). Breeding meagre males are relatively large (up to 2 m long), emit high-amplitude long tonal calls (probably used for mate attraction [38]), and inhabit the coastal areas in the eastern Atlantic and Mediterranean where Lusitanian toadfish breeding aggregations are also found (e.g. Tagus River; R. O. Vasconcelos 2006–2008, personal observations)."

"Nevertheless, this species not only detected but also to some extent resolved temporal features of heterospecific sounds, namely of the advertising calls of the sympatric sciaenid A. regius and foraging sounds of T. truncatus. Argyrosomus regius inhabits coastal areas where Lusitanian toadfish breeding aggregations are usually found and produces advertising calls often at the same time (R. O. Vasconcelos 2006– 2008, personal observations)."

Observation Environment Quotes

"We also considered a mate advertising call emitted by a male meagre A. regius (Sciaenidae) previously recorded in the Guadiana River, Portugal (N. Prista & M. C. P. Amorim)."

Behaviour Description Quotes

"We also considered a mate advertising call emitted by a male meagre A. regius (Sciaenidae) previously recorded in the Guadiana River, Portugal (N. Prista & M. C. P. Amorim). Breeding meagre males are relatively large (up to 2 m long), emit high-amplitude long tonal calls (probably used for mate attraction [38]), and inhabit the coastal areas in the eastern Atlantic and Mediterranean where Lusitanian toadfish breeding aggregations are also found (e.g. Tagus River; R. O. Vasconcelos 2006–2008, personal observations)."

Sound Name Quotes

"We also considered a mate advertising call emitted by a male meagre A. regius (Sciaenidae) previously recorded in the Guadiana River, Portugal (N. Prista & M. C. P. Amorim). Breeding meagre males are relatively large (up to 2 m long), emit high-amplitude long tonal calls (probably used for mate attraction [38]), and inhabit the coastal areas in the eastern Atlantic and Mediterranean where Lusitanian toadfish breeding aggregations are also found (e.g. Tagus River; R. O. Vasconcelos 2006–2008, personal observations)."

Observation Environments

Wild

Behaviour Descriptions

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Sound Names

Tonal Harmonic (cited)

Included Diagrams

Oscillogram