One fish, two fish, small fish, big fish
Gustavo Castellanos-Galindo has been visiting us for the last couple of weeks. Gustavo is a PhD student at the Leibniz Center for Tropical Marine Ecology (ZMT) in Bremen-Germany, and the Center of Excellence in Marine Sciences (CEMarin). For his PhD he collected an impressive dataset of fish abundances and individual body sizes in two similar but biogeographically isolated neotropical mangroves: one in the Pacific coast of Colombia and one in north Brazil. The two mangroves are very similar in terms of habitat, both being influenced by gigantic tides, but have no species in common. The main difference between the two sites is that Brazil is far more productive.
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During Gustavo’s visit we have been exploring community structure at these two sites, and investigating how the difference in productivity affects numerical abundance, biomass and individual size distributions.