scholarly journals Larval fish assemblages in nearshore waters of southeast Gulf of California: vertical and temporal patterns

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Felipe Amezcua ◽  
José Alberto Rodríguez-Preciado ◽  
Antonio Calderón-Pérez ◽  
Sergio Rendón-Rodríguez ◽  
Lucinda Green ◽  
...  
Keyword(s):  
Gulf Of California ◽  
Fish Assemblages ◽  
Larval Fish ◽  
Demersal Fish ◽  
Economic Importance ◽  
Environmental Parameter ◽  
Coastal Environments ◽  
Total Abundance ◽  
Efficient Sampling ◽  
Vertical Changes

Abstract The influence of salinity and temperature on larval fish assemblages, as well as, temporal and vertical patterns on larval fish assemblages off the inlet of the Presidio River, southeast coast of the Gulf of California were evaluated. Samplings for ichthyoplankton and environmental parameter measurements were carried out at three depths, in five sampling sites, during September and December 1994, and April and June 1995. Anchovies and herrings (Clupeiformes) were the most abundant larval fish accounting for 77% of the total abundance. A significant relationship between salinity and the abundance of larval herrings (Opisthonema medirastre and O. dovii) and between the water temperature and the abundance of the weakfish (Cynoscion reticulatus) was found. Anchovies (Anchoa lucida, A. walkeri, and A. nasus) were present in all sampled months, while O. medirastre and O. dovii occurred in December and June, and C. reticulatus in September. Larvae of pelagic fish were more abundant near the surface, while larvae of demersal fish were more abundant near the bottom. The present study, by emphasising the importance of considering temporal and vertical changes in larval fish assemblages in coastal environments with ecological and economic importance, will be useful for designing more efficient sampling programs.

scholarly journals Three-dimensional distribution of larval fish assemblages in an anticyclonic eddy in a semi-enclosed sea (Gulf of California)

2012 ◽  
Vol 34 (6) ◽  
pp. 548-562 ◽  
Author(s):  
Fernando Contreras-Catala ◽  
Laura Sánchez-Velasco ◽  
Miguel F. Lavín ◽  
Victor M. Godínez
Keyword(s):  
Gulf Of California ◽  
Fish Assemblages ◽  
Larval Fish ◽  
Three Dimensional ◽  
Anticyclonic Eddy ◽  
Dimensional Distribution

scholarly journals Regionalization in the distribution of larval fish assemblages during winter and autumn in the Gulf of California

2018 ◽  
Vol 46 (1) ◽  
pp. 20-36 ◽  
Author(s):  
Homero Urias ◽  
Gerardo Aceves ◽  
Raymundo Avendano ◽  
Ricardo Saldierna ◽  
Jaime Gomez ◽  
...  
Keyword(s):  
Gulf Of California ◽  
Fish Assemblages ◽  
Larval Fish

scholarly journals Seasonal changes in connectivity routes among larval fish assemblages in a semi-enclosed sea (Gulf of California)

2010 ◽  
Vol 33 (3) ◽  
pp. 517-533 ◽  
Author(s):  
Martha Peguero-Icaza ◽  
Laura Sánchez-Velasco ◽  
Miguel F. Lavín ◽  
S. Guido Marinone ◽  
Emilio Beier
Keyword(s):  
Seasonal Changes ◽  
Gulf Of California ◽  
Fish Assemblages ◽  
Larval Fish

Larval fish assemblages and geostrophic circulation in Bahía de La Paz and the surrounding southwestern region of the Gulf of California

2006 ◽  
Vol 28 (11) ◽  
pp. 1081-1098 ◽  
Author(s):  
L. Sánchez-Velasco ◽  
E. Beier ◽  
C. Avalos-García ◽  
M. F. Lavín
Keyword(s):  
Gulf Of California ◽  
Fish Assemblages ◽  
Larval Fish ◽  
La Paz

Larval fish assemblages, environment and circulation in a semienclosed sea (Gulf of California, Mexico)

2008 ◽  
Vol 79 (2) ◽  
pp. 277-288 ◽  
Author(s):  
M. Peguero-Icaza ◽  
L. Sánchez-Velasco ◽  
M.F. Lavín ◽  
S.G. Marinone
Keyword(s):  
Gulf Of California ◽  
Fish Assemblages ◽  
Larval Fish

Seasonal changes in larval fish assemblages in a semi-enclosed sea (Gulf of California)

2009 ◽  
Vol 29 (14) ◽  
pp. 1697-1710 ◽  
Author(s):  
L. Sánchez-Velasco ◽  
M.F. Lavín ◽  
M. Peguero-Icaza ◽  
C.A. León-Chávez ◽  
F. Contreras-Catala ◽  
...  
Keyword(s):  
Seasonal Changes ◽  
Gulf Of California ◽  
Fish Assemblages ◽  
Larval Fish

Dissolved oxygen and temperature best predict deep-sea fish community structure in the Gulf of California with climate change implications

2020 ◽  
Vol 637 ◽  
pp. 159-180
Author(s):  
ND Gallo ◽  
M Beckwith ◽  
CL Wei ◽  
LA Levin ◽  
L Kuhnz ◽  
...  
Keyword(s):  
Climate Change ◽  
Community Structure ◽  
Community Composition ◽  
Environmental Conditions ◽  
Deep Sea ◽  
Gulf Of California ◽  
Fish Community ◽  
Demersal Fish ◽  
Fish Community Structure ◽  
Explained Variance

Natural gradient systems can be used to examine the vulnerability of deep-sea communities to climate change. The Gulf of California presents an ideal system for examining relationships between faunal patterns and environmental conditions of deep-sea communities because deep-sea conditions change from warm and oxygen-rich in the north to cold and severely hypoxic in the south. The Monterey Bay Aquarium Research Institute (MBARI) remotely operated vehicle (ROV) ‘Doc Ricketts’ was used to conduct seafloor video transects at depths of ~200-1400 m in the northern, central, and southern Gulf. The community composition, density, and diversity of demersal fish assemblages were compared to environmental conditions. We tested the hypothesis that climate-relevant variables (temperature, oxygen, and primary production) have more explanatory power than static variables (latitude, depth, and benthic substrate) in explaining variation in fish community structure. Temperature best explained variance in density, while oxygen best explained variance in diversity and community composition. Both density and diversity declined with decreasing oxygen, but diversity declined at a higher oxygen threshold (~7 µmol kg-1). Remarkably, high-density fish communities were observed living under suboxic conditions (<5 µmol kg-1). Using an Earth systems global climate model forced under an RCP8.5 scenario, we found that by 2081-2100, the entire Gulf of California seafloor is expected to experience a mean temperature increase of 1.08 ± 1.07°C and modest deoxygenation. The projected changes in temperature and oxygen are expected to be accompanied by reduced diversity and related changes in deep-sea demersal fish communities.

scholarly journals Phytoplankton composition and abundance as indicators of aquaculture effluents impact in coastal environments of mid Gulf of California

Heliyon ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. e06203
Author(s):  
Celia G. Valenzuela-Sanchez ◽  
Norberto M.A. Pasten-Miranda ◽  
L. Fernando Enriquez-Ocaña ◽  
Ramon H. Barraza-Guardado ◽  
J.E. Valdez Holguin ◽  
...  
Keyword(s):  
Gulf Of California ◽  
Coastal Environments ◽  
Phytoplankton Composition ◽  
Aquaculture Effluents

Temporal variation of larval fish assemblages of the Murray Mouth in prolonged drought conditions

2013 ◽  
Vol 64 (10) ◽  
pp. 932 ◽  
Author(s):  
L. B. Bucater ◽  
J. P. Livore ◽  
C. J. Noell ◽  
Q. Ye
Keyword(s):  
Fish Assemblages ◽  
Larval Fish ◽  
River System ◽  
Sampling Period ◽  
Marine Species ◽  
Flow Regulation ◽  
Nursery Areas ◽  
Transition Zones ◽  
Murray Darling Basin ◽  
Drought Conditions

Estuaries are transition zones that link freshwater and marine ecosystems and are often used as nursery areas by fish. The Murray–Darling Basin, which is heavily affected by flow regulation and water extraction, is the largest river system in Australia and terminates at the Murray Mouth estuary. Protracted drought conditions resulted in extremely low flows to the Murray Mouth that affected water condition, fish abundance, community structure and fish use of the estuary (e.g. nursery areas). The aims of the present study were to examine temporal changes in larval fish assemblages in this estuary. The assemblages were dominated by two gobiid species, Arenigobius bifrenatus and Tasmanogobius lasti. There was a noticeable absence or low abundance of freshwater, diadramous and large-bodied marine species that use this estuary for reproductive functions. Monthly differences in larval fish assemblages, between August–September and October–November, were attributed to increases in the abundances of A. bifrenatus in October and November and oscillation in T. lasti during the entire sampling period. The outcomes of the present study suggested that larval fish assemblages in drought conditions are limited to small-bodied species tolerant of high salinities and that freshwater flows are needed for the estuary to function as a nursery for other species.

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