Spat availability of commercial bivalve species recruited on artificial collectors from the northern Gulf of California. Seasonal changes in species composition

2014 ◽  
Vol 46 (12) ◽  
pp. 2829-2840 ◽  
Author(s):  
Gaspar Soria ◽  
Miguel F Lavín ◽  
Richard Cudney-Bueno
Keyword(s):  
Species Composition ◽  
Seasonal Changes ◽  
Gulf Of California ◽  
Bivalve Species

Species composition and seasonal changes in macroalgal blooms in lagoons along the southeastern Gulf of California

2008 ◽  
Vol 51 (2) ◽  
Author(s):  
Alejandra Piñón-Gimate ◽  
Elisa Serviere-Zaragoza ◽  
María Julia Ochoa-Izaguirre ◽  
Federico Páez-Osuna
Keyword(s):  
Species Composition ◽  
Seasonal Changes ◽  
Gulf Of California ◽  
Macroalgal Blooms

scholarly journals Seasonal Changes of Fish Assemblages in a Subtropical Lagoon in the SE Gulf of California

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
F. Amezcua ◽  
F. Amezcua-Linares
Keyword(s):  
Species Composition ◽  
Coastal Lagoon ◽  
Seasonal Variations ◽  
Fish Assemblage ◽  
Seasonal Changes ◽  
Gulf Of California ◽  
Fish Assemblages ◽  
Diversity Index ◽  
Abundant Species ◽  
Almost All

The composition and seasonal changes of the fish assemblage in a coastal lagoon system in southeastern Gulf of California were assessed from December 2001 to July 2005. A total of 20,877 organisms belonging to 191 species and 47 families were analyzed. We determined that almost all the species inhabiting the system were found; however some rare species were not captured in our study. The majority of the species found were demersal but in every season at least one pelagic or benthopelagic species showed high abundances. The moonfish,Selene peruviana, was the most abundant species, whilst the puffer,Sphoeroides annulatus, was the main species in terms of biomass. The species composition changed seasonally; results from the Simpson diversity index and the cumulative species curve show that seasonally almost all the species in the system for a given season were found. These changes were also reflected in the multivariate results. The seasonal variations could be attributed to the migration of species out of the system as they grow and the arrival of new ones, which could also be related to temperature patterns since this environmental factor changes considerably through the year.

scholarly journals Spatial distribution and species composition of small pelagic fishes in the Gulf of California

2006 ◽  
Author(s):  
Edgar Lanz ◽  
Manuel O. Nevárez Martínez ◽  
Juana López Martínez ◽  
Juan A. Dworak
Keyword(s):  
Spatial Distribution ◽  
Species Composition ◽  
Gulf Of California ◽  
Pelagic Fishes

The recovery and dynamics of submerged aquatic macrophyte vegeta­tion in the Wilderness lakes, southern Cape

Bothalia ◽  
1992 ◽  
Vol 22 (2) ◽  
pp. 283-288 ◽  
Author(s):  
P. J. Weisser ◽  
A. K. Whitfield ◽  
C. M. Hall
Keyword(s):  
Species Composition ◽  
Seasonal Changes ◽  
Aquatic Macrophyte ◽  
Plant Biomass ◽  
Plant Populations

Between 1979 and 1981, the submerged aquatic macrophyte vegetation in the Wilderness lakes died back significantly, and in some areas disappeared altogether. This study documents the senescent phase and describes the recovery of the plant populations between May 1982 and May 1983. In two lakes, namely Langvlei and Eilandvlei, the plant biomass approximately doubled between the winters of 1982 and 1983. Seasonal changes in species composition are documented and possible factors accounting for the collapse and recovery of the plant populations are discussed.

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