Round goby includes mollusks, crustaceans, worms, fish eggs, zebra mussels, small fish, and insect larvae. Adult round gobies feed mainly on mollusks and other small invertebrates (insects and amphipods) living on the bottom of lakes and streams. At spring, the main items in its diet in the Sasyk Lagoon are "Hydrobia", "Cerastoderma", "Abra". In the same season near the Romanian coasts of the Black Sea the round goby feeds on polychaetes, crustaceans ("Idotea balthica", "Pachygrapsus marmoratus", "Xantho poressa", etc.) and juvenile gobies. Near Sevastopol the round goby feeds on molluscs ("Mytilaster lineatus", "Abra" spp.), but near Karadag except molluscs ("Cerastoderma", "Brachiodontes") were
Grunt (software) set by the user. Moreover, Grunt offers the ability to define custom tasks, which can combine multiple existing tasks into a single task or add entirely new functionality. Grunt's command-line interface (CLI) can be installed globally through npm. Executing the codice_1 command will load and run the version of Grunt locally installed in the current directory. Hence, we can maintain different versions of Grunt in different folders and execute each one as we wish. To use Grunt in a project, two specific files need to be created in the root directory, namely package.json and a Gruntfile. Tasks are the modules