Fish composition in a south-western Atlantic temperate coastal lagoon: spatial?temporal variation and relationships with environmental variables.

GONZÁLEZ CASTRO,M; DÍAZ DE ASTARLOA, J.M.; COUSSEAU, M.B.; FIGUEROA, D.E.; DELPIANI, S.M.; BRUNO, D.; GUZONNI, J.M.; BLASINA, G.E. AND M.Y. DELI ANTONI.

JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM

The Marine Biological Association of the United Kingdom/ Cambridge University Press

Lugar: Cambridge, United Kingdom; Año: 2009 vol. 89 p. 593 - 604

0025-3154

Mar Chiquita, an irregularly shaped brackish-water coastal lagoon, is located in the Buenos Aires province of Argentina andconsidered since 1996 by the Coordination Council of the Man and Biosphere Program of UNESCO as a World Reserve ofBiosphere. The present paper aims to study both the spatial and temporal variation of fish composition in this coastal lagoonand the influence of some environmental variables on the relative abundance of the main fish species. Monthly samplingsurveys over a two-year period in three different areas were conducted, using a beach-seine net and three monofilament-gillnets with different mesh size. Twenty-eight species belonging to four bio-ecological categories were identified, five of them arenew records for Mar Chiquita fish community. The correspondence analysis showed strong relationships between high salinityrange and the abundance of Brevoortia aurea, Cynoscion guatucupa and Pomatomus saltatrix. Conversely, low salinity range corresponded to high abundance of Mugil platanus and Odontesthes argentinensis. High temperatures were corresponded with abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothrange corresponded to high abundance of Mugil platanus and Odontesthes argentinensis. High temperatures were corresponded with abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothrange corresponded to high abundance of Mugil platanus and Odontesthes argentinensis. High temperatures were corresponded with abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothrange corresponded to high abundance of Mugil platanus and Odontesthes argentinensis. High temperatures were corresponded with abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothrange corresponded to high abundance of Mugil platanus and Odontesthes argentinensis. High temperatures were corresponded with abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothrange corresponded to high abundance of Mugil platanus and Odontesthes argentinensis. High temperatures were corresponded with abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothBrevoortia aurea, Cynoscion guatucupa and Pomatomus saltatrix. Conversely, low salinity range corresponded to high abundance of Mugil platanus and Odontesthes argentinensis. High temperatures were corresponded with abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothwith abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothMugil platanus and Odontesthes argentinensis. High temperatures were corresponded with abundance of Micropogonias furnieri and Brevoortia aurea. In contrast, high abundance of bothMicropogonias furnieri and Brevoortia aurea. In contrast, high abundance of both Odontesthes argentinensis and Oligosarcus jenynsii were corresponded to low temperatures. Brevoortia aurea, Mugil platanusand Oligosarcus jenynsii were corresponded to low temperatures. Brevoortia aurea, Mugil platanus and Odontesthes argentinensis were the most abundant species, representing more than 80% of the total capture. The group of estuarine-nondependent-marine fish presented the highest species richness. Estuarine-dependent-marinespecies presented for both juveniles and adults specimens the highest abundance values.The group of estuarine-nondependent-marine fish presented the highest species richness. Estuarine-dependent-marinespecies presented for both juveniles and adults specimens the highest abundance values.The group of estuarine-nondependent-marine fish presented the highest species richness. Estuarine-dependent-marinespecies presented for both juveniles and adults specimens the highest abundance values.The group of estuarine-nondependent-marine fish presented the highest species richness. Estuarine-dependent-marinespecies presented for both juveniles and adults specimens the highest abundance values.The group of estuarine-nondependent-marine fish presented the highest species richness. Estuarine-dependent-marinespecies presented for both juveniles and adults specimens the highest abundance values.The group of estuarine-nondependent-marine fish presented the highest species richness. Estuarine-dependent-marinespecies presented for both juveniles and adults specimens the highest abundance values.Odontesthes argentinensis were the most abundant species, representing more than 80% of the total capture. The group of estuarine-nondependent-marine fish presented the highest species richness. Estuarine-dependent-marinespecies presented for both juveniles and adults specimens the highest abundance values.