Structure of the Community of Dominant Fish Species Associated to Soft-Bottoms in the Lagoon of La Paz, B.C.S., México

Autor:	Eleonora Romero-Vadillo, Emelio Barjau-González, José Ángel Armenta-Quintana, Bruma R. Castillo-Rosas, Juan Manuel López-Vivas, Abril Karim Romo-Piñeda
Rok vydání:	2020
Předmět:	biology Ecology Haemulidae Community structure Fish species Dominance (ecology) Species evenness Pharmacology (medical) Species richness Sciaenidae biology.organism_classification
Zdroj:	Open Journal of Marine Science. 10:79-92
ISSN:	2161-7392 2161-7384
DOI:	10.4236/ojms.2020.103006
Popis:	The study of fish communities from coastal lagoons allows a better understanding of role of these organisms in these systems, and the effect of anthropogenic impact. The aim of the present study was to determine the community structure, in particular dominance of fish species associated to soft bottoms in the lagoon of La Paz. Six bimonthly samplings were carried out in seven localities from November 2016 to September 2017 and physicochemical parameters were recorded. Analysis of temperature showed differences between two marked seasons, warm and cold. Species richness showed differences between months and localities. Shannon-Weaver index and Pielou’s evenness showed significant differences only between months. Simpson’s index suggests a high diversity. According to the BVI, 15 species from the families Haemulidae, Sciaenidae and Gerreidae, were the most biologically important. Zoogeographic affinity analysis showed that 58% of the species prefer the Province of Cortez. Dominant species recorded in this study play a key role in soft-bottom systems like the lagoon of La Paz.
Databáze:	OpenAIRE
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