Influence of bottom environment conditions and hydrographic variability on spatiotemporal trends of macrofaunal amphipods on the Yucatan continental shelf
Por:
Paz-Rios, Carlos E., Pech, Daniel, Mariño-Tapia I., Simões N.
Publicada:
1 ene 2020
Resumen:
Amphipod species collected during three oceanographic campaigns (2010–2012) were analyzed to describe their spatiotemporal community distribution trends and their relationships with bottom water and sediment variables. The results show that the species richness (117 spp.) did not reach its maximum value according to the species accumulation curve (up to 187 spp.). Multivariate analyses and constrained ordinations techniques detected three main amphipod assemblages along the longitudinal gradient (i.e., Western Caribbean, Mid-Yucatan, and West-Yucatan) and during two temporal hydrographic scenarios (i.e., upwelling in 2010–2011 and non-upwelling in 2012). In 2010–2011, low values in species richness and abundance from the Western Caribbean and eastern Mid-Yucatan assemblages were associated with relatively low bottom-water temperatures from the upwelling systems. In 2012, the absence of upwelling and the occurrence of a warm-core anticyclonic eddy seemed to cause an increase in species richness and abundance in the three assemblages. The hydrographic variability and sediment characteristics are suggested as the major environmental drivers that shapes the soft-bottom amphipod community structure and diversity in the Yucatan continental shelf. © 2020 Elsevier Ltd
Filiaciones:
Paz-Rios, Carlos E.:
Laboratorio de Biodiversidad Marina y Cambio Climático (BIOMARCCA), El Colegio de La Frontera Sur, Unidad Campeche, Lerma, Campeche 24500, Mexico
Colegio Frontera Sur, Lab Biodiversidad Marina & Cambio Climat BIOMARCC, Unidad Campeche, Lerma 24500, Campeche, Mexico
Pech, Daniel:
Laboratorio de Biodiversidad Marina y Cambio Climático (BIOMARCCA), El Colegio de La Frontera Sur, Unidad Campeche, Lerma, Campeche 24500, Mexico
Colegio Frontera Sur, Lab Biodiversidad Marina & Cambio Climat BIOMARCC, Unidad Campeche, Lerma 24500, Campeche, Mexico
Mariño-Tapia I.:
Centro de Investigación y de Estudios Avanzados Del Instituto Politécnico Nacional, Unidad Mérida, Cordemex, Mérida, Yucatán 97310, Mexico
Simões N.:
Universidad Nacional Autónoma de México, Facultad de Ciencias, Unidad Academica Sisal, Sisal, Yucatán 97356, Mexico
Laboratorio Nacional de Resiliencia Costera, Puerto de Abrigo, Sisal, Yucatán, Mexico
International Chair for Ocean and Coastal Studies, Harte Research Institute, Texas A & M, Corpus Christi, TX, United States
Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Unidad Merida, Merida 97310, Yucatan, Mexico
Univ Nacl Autonoma Mexico, Unidad Merida, Escuela Nacl Estudios Super, Ucu 97357, Yucatan, Mexico
Univ Nacl Autonoma Mexico, Fac Ciencias, Unidad Acad Sisal, Sisal 97356, Yucatan, Mexico
Lab Nacl Resiliencia Costera, Sisal, Yucatan, Mexico
Texas A&M, Int Chair Ocean & Coastal Studies, Harte Res Inst, Corpus Christi, TX USA
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