We present the results of a photometric and spectroscopic study of seven members of the NGC 5328 group of galaxies , a chain of galaxies spanning over 200 kpc ( H _ { 0 } =70 km s ^ { -1 } Mpc ^ { -1 } ) .
We analyze the galaxy structure and study the emission line properties of the group members looking for signatures of star formation and AGN activity .
We finally attempt to infer , from the modeling of line-strength indices , the stellar population ages of the early-type members .
We investigate also the presence of a dwarf galaxy population associated with the bright members .

The group is composed of a large fraction of early-type galaxies including NGC 5328 and NGC 5330 two “ bona fide ” ellipticals at the center of the group .
In both galaxies no recent star formation episodes are detected by the H \beta vs. MgFe line-strength indices of these galaxies .
2MASX J13524838-2829584 has extremely boxy isophotes which are believed to be connected to a merging event : line strength indices suggest that this object probably had a recent star formation episode .
A warped disc component emerges from the model subtracted image of 2MASX J13530016-2827061 which is interpreted as a signature of an ongoing interaction with the rest of the group .

Ongoing star formation and nuclear activity is present in the projected outskirts of the group .
The two early-type galaxies 2MASX J13523852-2830444 and 2MASX J13525393-2831421 show spectral signatures of star formation while a Seyfert 2 type nuclear activity is detected in MCG –5–33–29 .