[Coral-List] slightly earlier original paper on the Amazon plume reefs
douglasfennertassi at gmail.com
Mon Apr 25 17:47:11 EDT 2016
The following paper also reported on the Amazon plume reefs:
Mesophotic coral ecosystems occur offshore and north of the Amazon river.
Bulletin of Marine Science 2015, 91(4): 491-510.
Since the 1960s, it has been accepted that the distribution of
reef-building corals off Brazil has its northernmost limit at the Manuel
Luis Marine State Park (approximately 0°46´S, 44°15´W), about 530 km south
of the Amazon River mouth. In the present study, we challenge this view and
report a geographic extension of coral distribution of over 550 km to the
north (to 02°13′48′′N and 48°10′12′′W). The Amazon River is believed to be
the greatest barrier to the distribution of marine species between
Brazilian and Caribbean waters. After examining specimens deposited in
museums and documented in scientific literature, we recorded 38 coral
species offshore of the Amazon River mouth, including 27 octocorals, 9
scleractinians, 1 hydrocoral, and 1 black coral. Corals were found at
depths between 18 and 125 m, providing evidence of mesophotic coral
ecosystems adjacent to the mouth of Amazon River, which raises important
questions about the origin and connectivity between populations of reef
organisms off Brazil and those in the Caribbean region.
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