 The species were often specialists and these were not affected to the same extent.For example, the piscivorous haplochromines were particularly hard hit with a high number of extinctions, while the zooplanktivorous haplochromines reached densities in 2001 that were similar to before the drastic decline, although consisting of fewer species and with some changes in their ecology.Although cichlids are mostly small- to medium-sized, many are notable as food and game fishes.