  In the events of peripheral dissociation of relativistic nuclei in the
nuclear track emulsion, it is possible to study the emerging ensembles of He
and H nuclei, including those from decays of unstable $^{8}$Be and $^{9}$B
nuclei, as well as the Hoyle state. These extremely short-lived states are
identified by invariant masses calculated from the angles in 2$\alpha$-pairs,
2$\alpha p$- and 3$\alpha$-triplets in the approximation of conservation of
momentum per nucleon of the primary nucleus. In the same approach, it is
possible to search for more complex states. This paper explores the correlation
between the formation of $^{8}$Be nuclei and the multiplicity of accompanying
$\alpha$-particles in the dissociation of relativistic $^{16}$O, $^{22}$Ne,
$^{28}$Si, and $^{197}$Au nuclei. On the above basis, estimates of this
correlation are presented for the unstable $^{9}$B nucleus and the Hoyle state.
The enhancement in the $^{8}$Be contribution to dissociation with the
$\alpha$-particle multiplicity has been found. Decays of $^{9}$B nuclei and
Hoyle states follow the same trend.
