Reseña de A Compendium of Gobies

A Compendium of Gobies de Wayne Osborn & Pam Osborn Resumen del Libro

Gobies (Gobiidae) are the world's largest fish family with around 2,000 species widely distributed from tropical, sub-tropical and temperate regions. They are the dominant fish family on coral reefs. Gobies are small, bottom dwelling fish with no swim bladder. They have two dorsal fins. In most species, the ventral or pelvic fins are partially or completely fused to form a sucker or disc - ideal for perching on the bottom and hanging tough in nasty currents. The caudal fin or tail is usually rounded. Length ranges upward from the eye watering small at 8-10 mm. Most species are less than 10 cm. The largest gobies we have photographed are from the Valenciennea genus (18 cm). The shorter gobies are some of the world's smallest known vertebrates. As the most populous of coral reef fish species combined their bottom hugging habits, gobies are relatively easy to observe and photograph. The sand and mud gobies are a stand out. In fact, it is hard to find a patch of coral sand without a crowd of gobies hanging out. The microgobies and commensals are an exception. The challenge in finding microgobies is just their small size. They are easier to locate once you know the typical habitats. Finding commensal gobies requires a close inspection of prospective hosts. The symbiotic relationship of shrimpgobies and their shrimps is a fascinating one and time spend in observation their interdependence is rewarding. These images are mostly from digital SLR’s (since 2005). All Pam’s images have been taken whilst free diving (from the surface to a depth of 12 metres). She is always prompt to point out that she has little time to prepare and compose her shots against the luxury of my nearly unlimited bottom time. Pam and Wayne’s books have been downloaded in 41 countries.

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