Temporal and along-shelf distribution of the larval fish assemblage at Gran Canaria, Canary Islands

Hernández‐León, Santiago; Moyano, Marta

doi:10.3989/scimar.2009.73s1085

Cited by 19 publications

(17 citation statements)

References 40 publications

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“…This is consistent with those of many studies conducted throughout middle latitudes, including the northwestern Pacific (Huang & Chiu, ), the northern Aegean Sea (Koutrakis et al., ), the northeastern Atlantic (Azeiteiro, Bacelar‐Nicolau, Resende, Gonçalves, & Pereira, ), the western Mediterranean (Álvarez et al., ) and Northeastern Pacific (Peiro‐Alcantar et al., ). Furthermore, in accordance with the present results, Moyano and Hernández‐León () also reported the presence of two seasonal LFAs’ corresponding to winter mixing and summer stratification periods in Gran Canaria.…”

Section: Discussionsupporting

confidence: 92%

“…In accordance with our present findings, strong relationships between the food availability and seasonal changes of LFAs have been reported in many other studies. Moyano and Hernández‐León () noted that ichthyoplankton abundance was significantly correlated with the zooplankton biomass in Gran Canaria, Eastern Atlantic. Rodriguez () also observed positive correlations among ZB, ichthyoplankton abundance and diversity in the Cantabrian Sea, the northeastern Atlantic.…”

Section: Discussionmentioning

confidence: 99%

“…According to match‐mismatch hypothesis, many fish species tend to spawn during plankton blooms when suitable food is available for larvae in middle and high latitudes (Cushing, ). Accordingly, intra‐annual changes of ichthyoplankton abundance and diversity are closely linked to the successions of food items in the northeastern (Moyano & Hernández‐León, ; Rodriguez, ) and western coasts of the Atlantic (Doyle et al., ), the western Mediterranean (Sabatés et al., ) and the northern Aegean Sea (Koutrakis, Kallianiotis, & Tsikliras, ). Since ichthyoplankters are passive drifters, local physical mechanisms are also important constraints on LFAs in temporal scale (Agostini & Bakun, ).…”

Section: Introductionmentioning

confidence: 99%

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Intra‐annual patterns of coastal larval fish assemblages along environmental gradients in the northeastern Mediterranean

Mavruk

Bengil²,

Yüksek

et al. 2017

Fisheries Oceanography

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To date, little is known about the larval‐fish assemblages (LFAs) in the eastern Mediterranean. The purpose of this study is to investigate the intra‐annual variations of LFAs with an emphasis on the effects of physical, chemical, biological and meteorological conditions in the gulf of Iskenderun, which is a shallow (100 m maximum depth), semi‐enclosed bay located in the northeastern corner of the Mediterranean. The gulf is under the influence of offshore waters throughout the year. The study was based on an ichthyoplankton survey program performed at 28 stations over 12 months, between November 2009 and October 2010. During the study, a total of 11,411 larval individuals belonging to 177 taxa were sampled. The jackknife estimate of maximum species richness was 225 ± 19 for the study area. The maximum larval richness (84 species) and abundance (827 larvae/10 m2) values coincided with spring bloom in April. Gobiids dominated the ichthyoplankton of Iskenderun Bay by constituting 9% of species richness and 42% of total individuals. Four LFAs were identified which were in early winter (November to January), late winter (February and March), spring (April to June) and summer (July to October). The intra‐annual variations of richness, abundance and composition of ichthyoplankton were significantly correlated with the temperature and mesozooplankton biomass. The wind conditions and thermal stratification were also significantly correlated with the composition of LFAs. In conclusion, phenology of LFAs were formed under the influence of physical and tropho‐dynamic conditions in Iskenderun Bay, Northeastern Mediterranean.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Intra‐annual patterns of coastal larval fish assemblages along environmental gradients in the northeastern Mediterranean

Mavruk

Bengil²,

Yüksek

et al. 2017

Fisheries Oceanography

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“…Two main reasons allowed us to discard the African origin for these larvae: (i) S. aurita was out of their spawning season in the African coast (i.e., summer, Ettahiri et al ., ) but not in the islands (Moyano and Hernández‐León, ); (ii) Gobidae and Labridae are relatively abundant in the coastal region of Fuerteventura. Accumulation of larval fish within island warm wakes has already been described in the Canary Islands (Rodríguez et al ., ; Moyano and Hernández‐León, ; Moyano et al ., ). Considering that Fuerteventura and Gran Canaria Islands are ~50 km apart and the position of the Fuerteventura lee, a periodical larval transport from Fuerteventura to Gran Canaria following the direction of the Canary Current flow is very likely.…”

Section: Discussionmentioning

confidence: 97%

Larval fish distribution and retention in the Canary Current system during the weak upwelling season

Moyano

Rodrı́guez

Benítez-Barrios

et al. 2014

Fisheries Oceanography

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The spatial distribution of fish larvae was studied in the Canaries‐African Coastal Transition Zone, outside the strong upwelling season. An onshore–offshore transition in the larval fish community structure was observed, from a coastal assemblage dominated by small pelagics (sardine, anchovy, mackerel), bounded by the upwelling front, to an offshore assemblage dominated by mesopelagic species (mainly Myctophidae, Phosichthydae, Gonostomatidae). Distribution of the neritic larvae was deeply influenced by the intense mesoscale activity found in the area, both horizontally (larvae were advected offshore but were always retained within the upwelling area) and vertically (larvae were deepened in the vicinity of two anticyclonic eddies). A combined effect of the upwelling front and a cyclonic–anticyclonic eddy dipole is likely the successful retention mechanism for these larvae. These results support the current belief that retention may be higher than previously thought in upwelling areas. Oceanic larvae were also collected in higher abundances near the front and an anticyclonic eddy. Neritic and oceanic larvae frequently showed a differentiated position in the water column, although they sometimes coexisted. Finally, larval connectivity between Islands within the Canary archipelago is suggested. The present study thus contributes to the understanding of the complex dispersal and retention processes in the Canaries‐African Coastal Transition Zone. However, results also highlight the poor knowledge of this region compared with the other three main Eastern Boundary Upwelling Systems in terms of ichthyoplankton dynamics. The importance of routine monitoring programs of commercial and non‐commercial species in the area is emphasized.

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“…Variations in the predominance of males and females could be explained by the ecological behaviour of the species (Arkhipov et al., ; Menezes et al., ; Pakhorukov, ), owing to the fact that females spawn on the ground and are not catchable by fishing gear during spawning season (in winter‐spring) as occurs in related species (Abaunza et al., ). Planktonic studies have observed these strong trends in the region, being that T. picturatus larvae are very abundant in the planktonic community in the same period (Moyano, ; Moyano and Hernández‐León, ). It is a size‐seasonality pattern that may be explained by the aforementioned migratory patterns observed in several species of small pelagic fish really dependent on the oceanographic variations (Eltink, ; Coombs et al., ).…”

Section: Discussionmentioning

confidence: 97%

Reproductive biology of the blue jack mackerel,Trachurus picturatus(Bowdich, 1825), off the Canary Islands

Jurado-Ruzafa

Santamaría

2012

J. Appl. Ichthyol.

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Summary The reproductive cycle of the blue jack mackerel, Trachurus picturatus, had not been described for the Canary Islands. Between March 2005 and March 2006 monthly samples of T. picturatus were collected randomly at the central fishery wharf from the commercial catches of purse‐seiners in Tenerife Island waters (Canary Islands). Some 2472 specimens were analysed, with total lengths from 10.4 to 31.9 cm. Although females outnumbered males in summer, males were more abundant in the sex ratio (1.36 : 1). Based on the monthly evolution of the gonado‐somatic index and the proportion of mature individuals, the spawning season occurred between January and April, peaking in February. Lengths at first maturity (LFM) were calculated from the maturity ogives by the Gompertz model for all specimens (22.79 cm), for males (21.20 cm) and for females (23.05 cm). In this area the minimum legal size for T. picturatus is actually smaller than the length at first maturity and should be revised to avoid depletion of the stock.

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Temporal and along-shelf distribution of the larval fish assemblage at Gran Canaria, Canary Islands

Cited by 19 publications

References 40 publications

Intra‐annual patterns of coastal larval fish assemblages along environmental gradients in the northeastern Mediterranean

Intra‐annual patterns of coastal larval fish assemblages along environmental gradients in the northeastern Mediterranean

Larval fish distribution and retention in the Canary Current system during the weak upwelling season

Reproductive biology of the blue jack mackerel,Trachurus picturatus(Bowdich, 1825), off the Canary Islands

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