Influences of El Niño on assemblages of mesopelagic fish larvae along the Pacific coast of Baja California Sur

Funes-Rodrı́guez, René; Hinojosa‐Medina, Alejandro; Aceves-Medina, Gerardo; Jiménez-Rosenberg, Sylvia P. A.; Bautista-Romero, J. Jesús

doi:10.1111/j.1365-2419.2005.00388.x

Cited by 22 publications

(18 citation statements)

References 15 publications

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“…While the oceanic fish are an important component of the ocean ecosystem (Beamish et al , 1999), how they respond to climate changes is not well studied. Although El Niño effects on species composition were noted (Lea & Rosenblatt, 2000; Funes‐Rodriguez et al , 2006), long‐term variability of abundances of selected species were examined (Smith & Moser, 2003), and decadal changes in distributions of oceanic fishes were illustrated in atlases (Moser et al , 2001a), no systematic study has been carried out to examine these changes.…”

Section: Introductionmentioning

confidence: 99%

Climate‐driven changes in abundance and distribution of larvae of oceanic fishes in the southern California region

Hsieh

Kim

Watson

et al. 2009

Global Change Biology

124

127

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We examined climatic effects on the geographic distribution and abundance of 34 dominant oceanic fishes in the southern California region using larval fish data collected from the 50-year long California Cooperative Oceanic Fisheries Investigations (CalCOFI) surveys. The oceanic species responses to environmental changes in their geographic distributions were not very pronounced, perhaps because they lived in the deep layer where temperature change was relatively small or because the environmental variation of the CalCOFI region is not strong enough (with an average temperature gradient of the upper 100 m around 91 km 1C À1 ). Among the 34 taxa, 16 showed a significant distributional shift (median latitude or boundaries) in relation to environmental variables, and eight species significantly shifted their geographic distribution from the 1951-1976 cold period to the 1977-1998 warm period. Interestingly, the vertically migrating taxa more often showed a significant response to environmental variables than the nonmigrating mesopelagic taxa, reflecting the more significant increase in heat content of the upper ocean (o200 m), compared with the deeper zone (300-500 m) where the mesopelagic fishes typically remain. Climate change has significant effects on the abundances of oceanic fishes. Twenty-four taxa exhibited a significant change in abundance in relation to environmental variables, and 25 taxa, including both warm and cold-water taxa, showed a significant increase in abundance from the cold to warm period. Analysis of physical data indicated that the surface-layer (20-200 m) warmed significantly and the isotherms approached shoreward from the cold to the warm period. We further show that the spatial distribution of coastal-neritic fish retreated shoreward and oceanic fish extended shoreward from the cold to warm period. Our results suggest intensified stratification of the southern California region during the warm period may create a suitable habitat for the oceanic species. Moreover, such an unfavorable condition (e.g. changes in food habitat) for coastal-neritic species might result in competitive release for the oceanic fishes to flourish.

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Section: Introductionmentioning

confidence: 99%

Climate‐driven changes in abundance and distribution of larvae of oceanic fishes in the southern California region

Hsieh

Kim

Watson

et al. 2009

Global Change Biology

124

127

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“…These species might benefit from nutrient incorporation (200–400 km out at sea) through advection processes (cyclone gyres or jets) and subarctic flow at large scales (Bernal & Chelton, ; Chelton, , ), as has been suggested to explain zooplankton biomass increases in oceanic zones (Bernal, , ; Bernal & McGowan, ; Chelton, , ). In the oceanic area of the southern part of the CCS, assemblage structures of mesopelagic larvae are highly variable and influenced by cold and warm conditions associated with La Niña and El Niño events, but these structures principally varied on a seasonal basis (Funes‐Rodríguez, Hinojosa‐Medina, Aceves‐Medina, Jiménez‐Rosenberg, & Bautista‐Romero, ; Funes‐Rodríguez, Zárate‐Villafranco, Hinojosa‐Medina, & González‐Armas, ; Funes‐Rodríguez et al., ). In the present study, a large amount of data were used, and these were sampled over a wide spatiotemporal range.…”

Section: Discussionmentioning

confidence: 99%

“…Merluccius productus occupied a large tolerance area from the SCB southward to BM with its maximum seasonal abundance area south of PE, in agreement with the findings of Moser et al (1993). Nonetheless, this species is not significantly distributed in the surrounding areas between PE-BSV (Funes-Rodr ıguez et al, 2009;Moser et al, 1993), which could imply the distribution of two spawning stocks in the CCS (Bailey, Francis, & Stevens, 1982;Funes-Rodr ıguez et al, 2009). However, genetic studies on M. productus suggested a lesser degree of intra-specific variation between Washington and Costa Rica (Silva-Segundo et al, 2011).…”

Section: Engraulis Mordaxmentioning

confidence: 99%

“…org/cruises/survey-coverage.html). The CICIMAR and IMECOCAL surveys were performed seasonally by Mexican institutions in the southern portion of the CCS (Baumgartner et al, 2008;Funes-Rodr ıguez, Elorduy-Garay, Hinojosa-Medina, & Z arate-Villafranco, 2009). In all three information sources, the sampling methodology and larval abundance estimation followed conventional standards (Kramer, Kalin, Stevens, Thrailkill, & Zweifel, 1972;Smith & Richardson, 1977).…”

Section: Datamentioning

confidence: 99%

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Preferential distribution of fish larvae in the California Current System: Time, space, and temperature

Bautista-Romero

Funes-Rodrı́guez

Jiménez-Rosenberg

et al. 2018

Fisheries Oceanography

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The preferential larval distributions of 22 fish species in the California Current System were identified in their temporal, spatial, and thermal domains using single parameter quotient analysis. This analysis allowed the characterization of their reproductive habitats based on ranges of preference, tolerance, and avoidance. In the temporal domain, the species’ preference intervals were wider than those previously reported, and all species showed preferences during two or more seasons of the year. In the spatial domain, the preferential distributions of the species were also wider, and some of them had different preferred zones from those described in previous works. Because one group of species was preferably distributed in coastal zones, and the other group was preferably distributed in oceanic zones, the biological production mechanisms sustaining these groups differ, namely, coastal upwelling and geostrophic fluxes of subarctic origin, respectively. In the thermal domain, the larval distribution preferences of 20 of 22 species have been determined for the first time, providing important information on their thermal tolerance window during the larval stage, a window that changes in width throughout each of the ontogenetic stages of fish. The distribution in each domain suggests association patterns between species, but additional studies are necessary to validate these patterns.

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“…Equatorial fish larvae ranged northward, whereas temperate taxa contracted northward during the 1958–1959 and 1982–1983 El Niños (Moser et al. , 1987; Funes‐Rodríguez et al. , 2002, 2006; Jiménez‐Rosenberg et al.…”

Section: Introductionmentioning

confidence: 99%

Mesopelagic fish larval assemblages during El Niño-southern oscillation (1997-2001) in the southern part of the California Current

Funes-Rodrı́guez

Zárate‐Villafranco

Hinojosa‐Medina

et al. 2011

Fisheries Oceanography

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Mesopelagic species are the principal constituents of larval fish assemblages inhabiting the southerly California Current region. Seasonal larval abundance is influenced by circulation of the California Current and subtropical Countercurrent, including regional changes of the physical, chemical, and biological characteristics during the El Niñ o-Southern Oscillation. This study examines the mesopelagic fish larvae distribution and abundance patterns between seasons and years, with the aim of describing the mesopelagic larval assemblages during dynamic environmental changes induced by El Niñ o (1997)(1998) and the rapid transition to La Niñ a (1998)(1999)(2000) along the west coast of the Baja California Peninsula (25-31°N). Despite large oceanographic variability, larval assemblages varied principally on a seasonal basis, related to reproductive periods and the north-south gradient influenced by the seasonal pattern of the California Current. An increased diversity, number of species, and abundance of tropical species was noticeable during the northward expansion of warm-water taxa during El Niñ o, principally in the northern areas (Ensenada and Punta Baja). After El Niño, population adjustments and rapid recovery occurred during La Niñ a conditions, which reflected seasonal differences in the mesopelagic community structure that are closely related to the seasonal pattern of oceanic currents.

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Influences of El Niño on assemblages of mesopelagic fish larvae along the Pacific coast of Baja California Sur

Cited by 22 publications

References 15 publications

Climate‐driven changes in abundance and distribution of larvae of oceanic fishes in the southern California region

Climate‐driven changes in abundance and distribution of larvae of oceanic fishes in the southern California region

Preferential distribution of fish larvae in the California Current System: Time, space, and temperature

Mesopelagic fish larval assemblages during El Niño-southern oscillation (1997-2001) in the southern part of the California Current

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