Grunion shrimp. An isopod, two species of flies, sandworms, and a beetle have been found preying on the eggs. Some shorebirds such as egrets and herons prey on grunion when the fish are on shore during spawning. Seagulls, sea lions, and larger fish such as sand sharks have also been observed feeding on grunion during a grunion run. The reduction of spawning habitat due to beach erosion, harbor construction, and pollution is believed to be the most critical problem facing the grunion species. Despite local concentrations, the grunion is not an abundant species. While the population size is not known, all
Creature Catalogue Creature Catalogue Creature Catalogue is a supplement for Basic "Dungeons & Dragons" first released in 1986, and updated in 1993. The "Creature Catalogue" is a supplement which describes over 200 monsters, most of which had been collected from "D&D" rules and modules, as well as 80 new monsters which had never been printed before; each monster is illustrated and indexed by habitat. In "Creature Catalogue" is collected all the creatures first presented in the official "D&D" adventure modules to that time, plus many new creatures and some converted from "AD&D". Also included is a comprehensive index of all "D&D" monsters