Боции: аж за ушами трещит!

Добрый день! Мои боции куботаи во время еды издают резкие короткие щелчки, как будто стекло трескается (ТТТ). Думала, камешками гремят, но нет, это явно у них физиологический процесс такой. Вчера на кормлении треск стоял, как автоматная очередь! Забавно! Каким местом они так трещат и почему? Таинственными «Подглазными шипами» что ли? Или они так пугают конкурентов?

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Summary
Resident Botia home failed to defend shelters that did not have covers.
Significantly more lateral displays occurred near shelters with covers than
near shelters without covers and significantly more “clicks” were produced
when the fish were near shelters with 2 sides and a cover than near any other
type of shelter.
Apparently the degree to which a loach defends a shelter is a function of

its effectiveness as a hiding place. As the relative size of the opponent in-
creased, attacks and sound production declined in frequency but lateral

displays increased. Playbacks of click sounds to solitary residents failed to

elicit attack behavior or sound production, but lateral display behavior in-
creased about ten-fold. The observed high levels of display behavior in

response to playbacks of “click” sounds suggest that acoustic inputs are suf-
ficient to release the typical lateral display response which commonly occurs

during agonistic interactions. Muted fish overcompensated with displays, but
attempts at defense by attacking were unsuccessful: muted residents were
unable to chase intruders from their shelter. Neither sound stimuli nor visual
cues by themselves were sufficient to elicit typical agonistic behavior of

resident Botia horae; both sounds and visual signals were necessary for charac-
teristic shelter defense by juvenile skunk loaches.

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lonelity

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