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La tortuga carey del Pacífico oriental es una de las unidades regionales de manejo más amenazadas del mundo. En el Pacífico colombiano ha sido avistada en áreas de alimentación y en estadios juveniles y/o subadultos. Sus zonas y temporada de anidación son desconocidas para el país. El 24 de febrero de 2020, se registra la primera hembra de tortuga carey para el Pacífico colombiano, en el Mosaico de Conservación Bahía Málaga. El largo curvo mínimo del caparazón fue de 90 cm, el largo curvo del caparazón nucalsupracuadal fue de 90,5 cm, el ancho curvo del caparazón fue de 73,6 cm y su peso fue de 69 kg. La presencia de una hembra y ser la principal zona de alimentación y residencia de juveniles y subadultos de la especie en el Pacífico de Colombia hace indispensable continuar con el monitoreo sistemático en agua e identificar y monitorear potenciales sitios de anidación para aportar a la conservación de la tortuga carey del Pacífico oriental.

The Omacha Foundation conducted a project to identify and compare vocal repertoires of the freshwater dolphins Inia geoffrensis and Sotalia fluviatilis in the Amazon and Orinoco Rivers in Colombia. Field recordings of 2457 min. were made using an omnidirectional hydrophone connected to a cassette recorder. Six different types of sounds were identified for Inia geoffrensis humboldtiana in the Orinoco River. Low-frequency whistles were recorded (fundamental signal around 3 kHz, maximum frequencies of 13 kHz), when foraging/socializing dolphin groups consisted of more than five animals. Screams, squeaks, pulsed sounds, low-frequency sounds, and echolocation clicks were identified as additional sound types for the species. In the Amazon region, where both species of river dolphins are found, recordings were only analyzed when the species occurred separately. Four different types of vocalizations including echolocation clicks, screams, squeaks, and pulsed sounds were identified for Inia geoffrensis geoffrensis. No clear whistles were heard for this species. Sotalia fluviatilis whistled constantly, even when only two dolphins were sighted. Whistles varied in frequency contour and duration. Generally high frequencies were observed with maximum values of 21.7 kHz and a fundamental signal of 15.8 kHz. Squeaking sounds, echolocation clicks, and burst pulses were also recorded. (To be presented in Spanish.)

Isla Gorgona, strategic enclave for conservation efforts in the Eastern Tropical Pacific. Gorgona, located in the southern zone of the Pacific Ocean of Colombia, is an insular territory at 35km in a straight line from the continental margin. Although historically this island was used in different forms, since 1984 it has been among the most important protected marine areas of the Colombian Pacific Ocean. Here we review the historical development of scientific research in Gorgona island and its importance for marine and coastal conservation in the Colombian Pacific region. The island is an strategic location for the Eastern Tropical Pacific Conservation Corridor. Its ecological status is acceptable but the populations of Bradypus variegatus and Proechymis simispinosus are too small and monitoring and scientific programs need to continue.

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