Interannual variations of environmental factors and the effects on larval fish habitats in the Upper Gulf of California during early summer

We examined the effect of a tidal-mixing front on the three-dimensional distribution of larval fish habitats (LFHs) in the Midriff Archipelago Region in the Gulf of California during winter. Zooplankton and environmental variables were sampled from 0 to 200 m in 50 m strata. Four LFHs were defined in association with the front, two on the northern side and two on the southern side. The northern LFHs were: (1) the Mainland Shelf Habitat, located from the surface to 100 m depth on the north-east mainland shelf, characterized mainly by the presence of Citharichtys fragilis; and (2) the Wide Distribution Habitat, extending from north-west to south across the front from the surface to 200 m depth, dominated by the ubiquitous Engraulis mordax. The southern LFHs were: (3) the Eddy Zone Habitat, defined nearly on an anticyclonic eddy, with the highest larval abundance and richness from the surface to 100 m depth, dominated by Leuroglossus stilbius; and (4) the Southern Gulf Habitat, associated with low temperature waters from the southern Gulf of California, dominated by southern-gulf species (e.g. Scomber japonicus and Sardinops sagax). Despite the weak stratification and low thermal contrast (~1.5°C) across the south front compared to summer (~3°C), our results demonstrate that the frontal zone may influence the formation of planktonic habitats even during generally homogeneous periods, which may also be relevant in other regions of the world.

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Larval fish habitats in a mesoscale dipole eddy in the gulf of California

Deep Sea Research Part I Oceanographic Research Papers ◽

10.1016/j.dsr.2015.05.005 ◽

2015 ◽

Vol 103 ◽

pp. 1-12 ◽

Cited By ~ 13

Author(s):

Ethel Apango-Figueroa ◽

Laura Sánchez-Velasco ◽

Miguel F. Lavín ◽

Victor M. Godínez ◽

Eric D. Barton

Keyword(s):

Gulf Of California ◽

Larval Fish ◽

Fish Habitats

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Larval Fish Habitats and Deoxygenation in the Northern Limit of the Oxygen Minimum Zone off Mexico

Journal of Geophysical Research Oceans ◽

10.1029/2019jc015414 ◽

2019 ◽

Vol 124 (12) ◽

pp. 9690-9705 ◽

Cited By ~ 1

Author(s):

Laura Sánchez‐Velasco ◽

Víctor M. Godínez ◽

Erick D. Ruvalcaba‐Aroche ◽

Amaru Márquez‐Artavia ◽

Emilio Beier ◽

...

Keyword(s):

Larval Fish ◽

Oxygen Minimum Zone ◽

Northern Limit ◽

Minimum Zone ◽

Fish Habitats ◽

Oxygen Minimum

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Preferred larval fish habitat in a frontal zone of the northern Gulf of California during the early cyclonic phase of the seasonal circulation (June 2008)

Journal of Marine Systems ◽

10.1016/j.jmarsys.2013.08.004 ◽

2014 ◽

Vol 129 ◽

pp. 368-380 ◽

Cited By ~ 11

Author(s):

L. Sánchez-Velasco ◽

M.F. Lavín ◽

S.P.A. Jiménez-Rosenberg ◽

V.M. Godínez

Keyword(s):

Gulf Of California ◽

Frontal Zone ◽

Larval Fish ◽

Fish Habitat ◽

Seasonal Circulation

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Interannual variations in copepod nauplii prey of larval fish in an Alaskan Bay

ICES Journal of Marine Science ◽

10.1093/icesjms/48.2.157 ◽

1991 ◽

Vol 48 (2) ◽

pp. 157-165 ◽

Cited By ~ 10

Author(s):

A. J. Paul ◽

K. O. Coyle ◽

L. Haldorson

Keyword(s):

Larval Fish ◽

Interannual Variations

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Piscivority in a Land-Locked Alewife (Alosa pseudoharengus) Population

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f80-167 ◽

1980 ◽

Vol 37 (8) ◽

pp. 1314-1317 ◽

Cited By ~ 39

Author(s):

Christopher C. Kohler ◽

John J. Ney

Keyword(s):

Great Lakes ◽

Larval Fish ◽

Early Summer ◽

Zooplankton Abundance ◽

Alosa Pseudoharengus ◽

Zooplankton Density ◽

Forage Species ◽

Dietary Component ◽

Fish Ingestion ◽

Precipitous Decline

Larval fish were a frequent dietary component of alewives (Alosa pseudoharengus) from Claytor Lake, Virginia, USA. Alewives consumed the young of four game and two forage species (maximum 26 mm total length (TL)). Alewife piscivority appeared to be at least partially nocturnal and was more prominent in littoral than in limnetic areas. Predator and prey lengths were positively correlated, although morphological limits on larval fish ingestion by alewives were not severe. Peak occurrence (40–70%, June 1978) of larval fish in alewife stomachs coincided with a precipitous decline in zooplankton density. Zooplankton abundance was higher in early summer 1979, when alewife piscivority was less common. Our findings support the hypothesis that alewife piscivority could have contributed to the collapse of Great Lakes resident fish populations following alewife establishment. Alewife piscivority should be considered in risk–benefit evaluations prior to introducing alewife as a pelagic forage species.Key words: alewife, Alosa pseudoharengus; feeding ecology, larval fish, Great Lakes fisheries, forage introductions

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The role of wind-forcing in the distribution of larval fish in Galway Bay, Ireland

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315412001348 ◽

2012 ◽

Vol 93 (2) ◽

pp. 471-478 ◽

Cited By ~ 7

Author(s):

Stephen Comerford ◽

Deirdre Brophy

Keyword(s):

Environmental Factors ◽

Generalized Linear Model ◽

Larval Fish ◽

Juvenile Fish ◽

Residual Circulation ◽

Tidal State ◽

Merlangius Merlangus ◽

Sampling Season ◽

Distribution Of Fish

The ichthyoplankton of Galway Bay was sampled over the spring and summer of 2007 and 2008 to determine what environmental factors influenced the distribution of larval and early juvenile fish. A total of 549 fish representing 27 taxa were caught. Catches decreased throughout each sampling season, and were generally poor in 2007. Catches were numerically dominated by sprat (Sprattus sprattus), dab (Limanda limanda), sand eel (Hyperoplus immaculatus) and whiting (Merlangius merlangus). Environmental factors driving distribution of fish were modelled using a binomial generalized linear model. The strength and direction of wind in the five days preceding sampling was the only significant environmental factor. Sustained onshore winds increased the probability of encountering larval fish in the areas sampled. The rainfall, tidal state, tow depth and wind conditions during sampling were not significant. Among the parameters measured it appears that onshore winds sufficiently strong to overcome the residual circulation are the main physical driver for the distribution of larval fish in Galway Bay.

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Does upwelling intensity determine larval fish habitats in upwelling ecosystems? The case of Senegal and Mauritania

Fisheries Oceanography ◽

10.1111/fog.12224 ◽

2017 ◽

Vol 26 (6) ◽

pp. 655-667 ◽

Cited By ~ 2

Author(s):

Maik Tiedemann ◽

Heino O. Fock ◽

Patrice Brehmer ◽

Julian Döring ◽

Christian Möllmann

Keyword(s):

Larval Fish ◽

Upwelling Intensity ◽

Fish Habitats

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Genotypic and phenotypic variability of Zostera marina on the west coast of North America

Canadian Journal of Botany ◽

10.1139/b91-176 ◽

1991 ◽

Vol 69 (6) ◽

pp. 1361-1371 ◽

Cited By ~ 32

Author(s):

Thomas W. H. Backman

Keyword(s):

Phenotypic Plasticity ◽

Zostera Marina ◽

Gulf Of California ◽

Morphological Changes ◽

Phenotypic Variability ◽

Puget Sound ◽

Leaf Size ◽

Common Garden ◽

Early Summer ◽

Wide Range

The relation between environmental factors and leaf morphology of Zostera marina L. have long been unclear, primarily because the species is intrinsically variable. The common-garden method was used to determine the genetic, environmental, and interaction components of leaf size variation. Zostera marina consists of several ecotypes with a wide range of phenotypic plasticity. Variation in the morphology of Z. marina was of three types: genetic, accounting for 14% across the localities studied; environmental (phenotypic plasticity along temporal and spatial gradients), accounting for 32%; and interaction between genotype and environmental, acounting for 35%. Five ecotypes were described for the North American Pacific coast: Z. marina L. var. izembekensis Backman, Z. marina L. var. typica Setchell, Z. marina L. var. phillipsii Backman, Z. marina L. var. latifolia Morong, Z. marina L. var. atàm Backman. Temporal variation was due to seasonal phenotypic changes in ecotypes. Zostera marina var. izembekensis showed little seasonal morphological changes; Z. marina var. typica demonstrated minor increase in leaf size in spring and summer. Zostera marina var. phillipsii and Z. marina var. latifolia behaved similarly in that leaf size of both increased markedly in spring through early summer. Zostera marina var. phillipsii is adapted to Hood Canal and Puget Sound while Z. marina var. latifolia occupies the outer coast. Zostera marina var. atàm exhibits sexual reproduction exclusively and is specifically adapted to the Gulf of California. Key words: seagrasses, common-garden experiment, ecotypes, morphometrics, genotypes.

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