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No. de sistema: 000059880

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008 _ _ 200225m20199999xx^^r^p^o^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
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044 _ _ a| xx
100 1 _ a| Schmitter Soto, Juan Jacobo
c| Doctor
e| autor
245 1 0 a| Changes in the fish community of a western Caribbean estuary after the expansion of an artificial channel to the sea
506 _ _ a| Acceso en línea sin restricciones
520 1 _ a| Increased connectivity between coastal lagoons and the sea is expected to entail a greater proportion of marine species in the former. Chetumal Bay, estuary of the Hondo river into the Caribbean, had a limited access to the sea until the opening of the Zaragoza Canal. We sought changes in the fish community from 1999–2001 (just after an expansion of the canal) to 2015–2018. The same fishing gear was used, in the same localities, during all seasons. Total fish abundance and mean local richness decreased, although total abundance increased in the polyhaline zone. Diversity was greater in the oligohaline zone in 1999–2001, and in the mesohaline zone in 2015–2018. Three guilds were absent in 2015–2018: Medium-sized herbivores, large piscivores, and medium-sized planktivores. Abundance of small benthivores decreased by decade; medium-sized piscivores and small planktivores became more abundant in 2015–2018 in the polyhaline zone. These changes may be due to the opening of the channel, but illegal fishing outside the bay may explain the decrease in juveniles of large piscivores, and erosion in the innermost part may be destroying important habitats. Our findings can be a reference for similar situations, as coastal development and climate change interact and affect tropical estuaries.
533 _ _ a| Reproducción electrónica en formato PDF
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Ictiofauna
650 _ 4 a| Diversidad de especies
650 _ 4 a| Salinidad
650 _ 4 a| Variables ambientales
650 _ 4 a| Cambio climático
651 _ 4 a| Bahía de Chetumal, Othón P. Blanco (Quintana Roo, México)
700 1 _ a| Herrera Pavón, Roberto Luis
e| autor
773 0 _
t| Water
g| Vol. 11, no. 12, 2582 (2019), p. 1-17
x| 2073-4441
856 4 1 u| https://www.mdpi.com/2073-4441/11/12/2582
z| Artículo electrónico
902 _ _ a| BG / MM
904 _ _ a| Febrero 2020
905 _ _ a| Artecosur
905 _ _ a| Biblioelectrónica
LNG eng
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Changes in the fish community of a western Caribbean estuary after the expansion of an artificial channel to the sea
Schmitter Soto, Juan Jacobo (autor)
Herrera Pavón, Roberto Luis (autor)
Nota: Acceso en línea sin restricciones
Contenido en: Water. Vol. 11, no. 12, 2582 (2019), p. 1-17. ISSN: 2073-4441
No. de sistema: 59880
Tipo: Artículo
PDF


Inglés

"Increased connectivity between coastal lagoons and the sea is expected to entail a greater proportion of marine species in the former. Chetumal Bay, estuary of the Hondo river into the Caribbean, had a limited access to the sea until the opening of the Zaragoza Canal. We sought changes in the fish community from 1999–2001 (just after an expansion of the canal) to 2015–2018. The same fishing gear was used, in the same localities, during all seasons. Total fish abundance and mean local richness decreased, although total abundance increased in the polyhaline zone. Diversity was greater in the oligohaline zone in 1999–2001, and in the mesohaline zone in 2015–2018. Three guilds were absent in 2015–2018: Medium-sized herbivores, large piscivores, and medium-sized planktivores. Abundance of small benthivores decreased by decade; medium-sized piscivores and small planktivores became more abundant in 2015–2018 in the polyhaline zone. These changes may be due to the opening of the channel, but illegal fishing outside the bay may explain the decrease in juveniles of large piscivores, and erosion in the innermost part may be destroying important habitats. Our findings can be a reference for similar situations, as coastal development and climate change interact and affect tropical estuaries."


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