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| Subspecies: | Unknown |
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| Est. World Population: | |
| CITES Status: | NOT LISTED |
| IUCN Status: | Endangered |
| U.S. ESA Status: | NOT LISTED |
| Body Length: | |
| Tail Length: | |
| Shoulder Height: | |
| Weight: | |
| Top Speed: | |
| Jumping Ability: | (Horizontal) |
| Life Span: | in the Wild |
| Life Span: | in Captivity |
| Sexual Maturity: | (Females) |
| Sexual Maturity: | (Males) |
| Litter Size: | |
| Gestation Period: | |
Habitat:
This species lives in or near fast-flowing rivers and streams in rainforest, preferring warmer, slower rivers than Conraua robusta but faster rivers than C. crassipes. It can survive in secondary habitats close to rivers, as well as in forest, but not in very heavily degraded areas (farm bush). It requires large, clean rivers and, due to the heavy consumption of this species, it is now only found deep in undisturbed forest away from villages (M.-O. Rödel pers. comm. July 2016). Breeding occurs in streams and small rivers. The young rest by flowing water during the day. Around Nkongsamba in western Cameroon, C. goliath, C. crassipes and C. robusta occur sympatrically.
A generation is assumed to be approximately five years.
A generation is assumed to be approximately five years.
Range:
The world's largest frog is known only from south-western Cameroon from the region of Nkongsamba, and south to Monte Alen in mainland Equatorial Guinea. In Nkongsamba, it is known from Ekomtolo, Badjong, Mangamba, Nkeba river around Babong, Dibang and the Dibombe river, extending further south to Yabassi, Eseka, Bipindi, Lolodorf, Akom II and Camp-Ma'an (N. Gonwouo pers. comm November 2016). Its presence in Gabon is uncertain. It is generally found at low to medium altitudes, below 1,000 m asl. Its extent of occurrence (EOO) is 79,839 km2.
Conservation:
Conservation Actions
This species presumably occurs in several protected areas, and is confirmed from Monte Alen National Park in Equatorial Guinea.
Conservation Needed
Measures are needed to work with local communities to manage the harvest at sustainable levels. A captive-breeding programme should also be considered.
Research Needed
Further data on what might constitute sustainable harvest is needed, as well as the socio-economic drivers of illegal hunting (T. Doherty-Bone pers. comm. November 2018). Actual impact of changes to water quality and riparian vegetation should also be a priority, particularly changes in discharge and agrochemical exposure (T. Doherty-Bone pers. comm. November 2018). Susceptibility to amphibian chytrid fungus (Batrachochytrium dendrobatidis) has not been fully assessed, and given the findings that this pathogen may have a recent Asian origin (O’Hanlon et al. 2018), its novelty to Africa could result in a more substantial threat than previously anticipated.
This species presumably occurs in several protected areas, and is confirmed from Monte Alen National Park in Equatorial Guinea.
Conservation Needed
Measures are needed to work with local communities to manage the harvest at sustainable levels. A captive-breeding programme should also be considered.
Research Needed
Further data on what might constitute sustainable harvest is needed, as well as the socio-economic drivers of illegal hunting (T. Doherty-Bone pers. comm. November 2018). Actual impact of changes to water quality and riparian vegetation should also be a priority, particularly changes in discharge and agrochemical exposure (T. Doherty-Bone pers. comm. November 2018). Susceptibility to amphibian chytrid fungus (Batrachochytrium dendrobatidis) has not been fully assessed, and given the findings that this pathogen may have a recent Asian origin (O’Hanlon et al. 2018), its novelty to Africa could result in a more substantial threat than previously anticipated.