Reproductive biology of the mullet Mugil liza (Teleostei: Mugilidae) in a tropical Brazilian bay

Albieri, R. J.; Araújo, Francisco Gerson

doi:10.1590/s1984-46702010000300003

Cited by 33 publications

(32 citation statements)

References 18 publications

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“…Seminiferous tubules contain spermatogenic cysts formed by Sertoli cells that sustain synchronously developing germ cells. In M. cephalus , the presence of spermatozoa in lumen of the testicular lobules suggests that spermatogenesis is of the semi‐cystic type, as is reported in other mugilidae such as Mugil liza (Grier, ; Albieri and Araújo, ) and is common in fish and amphibians (Santos and Oliveira, ).…”

Section: Discussionmentioning

confidence: 57%

Ultrastructure of grey mullet (Mugil cephalus , Linnaeus, 1758) spermatozoa as revealed from light, scanning and transmission electron microscopy

et al. 2015

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Spermatozoa morphology and fine structure were studied in the grey mullet, Mugil cephalus using light, scanning and transmission electron microscopy. Light microscopy observations indicate a semi-cystic type of spermatogenesis in the testis. The electron microscopy micrograph showed that the spermatozoon of M. cephalus is uniflagellated (total length 5.78 AE 1.26 lm), differentiated into an ovoid-shaped head without acrosome (1.80 AE 0.35 lm in length and 1.91 AE 0.30 lm in diameter), with a short midpiece and a long cylindrical flagellar tail (length 3.60 AE 0.50 lm). The midpiece is characterized by the presence of four to five vacuoles, a cytoplasmic canal, two centriole and two spherical mitochondria having a flat type of cristae. Chromatin granules of the nucleus form an electron-dense homogeneous mass. The flagellum consists of nine peripheral microtubules and a central pair (9 + 2) surrounded by the plasma membrane with side fins. The results confirm that spermatozoa of M. cephalus are perciform or teleostean type II. Information generated from the present study will be useful in taxonomic classification, cryopreservation and breeding work.

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Section: Discussionmentioning

confidence: 57%

Ultrastructure of grey mullet (Mugil cephalus , Linnaeus, 1758) spermatozoa as revealed from light, scanning and transmission electron microscopy

et al. 2015

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“…Moreover, its relative closer proximity to fish spawning grounds (Johannes ; Araújo et al . ; Costa & Araújo ; Albieri & Araújo ) compared with the continental beach is another factor that may contribute to the comparatively higher fish richness and abundance on the insular beach. Despite this evidence, we should to bear in mind that we did not measure directly anthropogenic influences or proximity from spawning grounds, and that other unmeasured factors ( e.g .…”

Section: Discussionmentioning

confidence: 99%

“…The insular beach is located next to the connection of Sepetiba Bay with oceanic waters, in close proximity to spawning areas of many species ( e.g. Mugil liza, Micropogonias furnieri and Diapterus rhombeus ) that occur at deeper areas in the inner shelf (Araújo & Santos ; Costa & Araújo ; Albieri & Araújo ). This also may favor the large number and high abundance of species on the insular beach.…”

Section: Discussionmentioning

confidence: 99%

Fish assemblage structure on sandy beaches with different anthropogenic influences and proximity of spawning grounds

et al. 2014

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Fish assemblages in an insular (preserved) and a continental (disturbed) sandy beach were compared to assess any changes that could be attributed to anthropogenic influences and/or the proximity of the fish spawning grounds. We expected that the closer geographical position to the spawning grounds and the small amount of anthropogenic disturbance on the insular beach would be likely to provide more suitable conditions for early fish development compared with the continental beach. A total of 192 samples (96 in each beach) were taken, yielding 68 fish species, mostly young‐of‐the‐year. Fish assemblage structure differed significantly between the two beaches. Moreover, the insular beach had higher number of species, number of individuals and biomass compared with the continental beach. The commercially important Clupeiformes Harengula clupeola, Anchoa tricolor and Anchoa januaria, Perciformes Micropogonias furnieri and Mugiliformes Mugil liza were typical species on the insular beach, partitioning the seasonal use of the beach. On the other hand, a few abundant non‐commercial species, mainly the Atheriniformes Atherinella brasiliensis and the Perciformes Eucinostomus argenteus and Diapterus rhombeus, occurred all year round at the continental beach. The high fish richness and abundance and the more conspicuous species turnover across seasons on the insular beach are probable indications of more complex and dynamic organization of the communities favored by better geographical position and less anthropogenic disturbance in the area.

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“…Although widely distributed in the Atlantic Ocean from the Caribbean to northern Argentina (Menezes et al., ), the lebranche mullet Mugil liza Valenciennes 1836 was only accessed in subtropical and temperate ecosystems (e.g. Vieira and Scalabrini, ; Esper et al., ; González‐Castro et al., ; Albieri and Araújo, ; Garbin et al., ); no on‐going assessments of the adaptive response to local environmental variability (spatial and temporal) were taking place in the tropics. The objective of this investigation was to investigate to what extent the growth rates are associated with cyclical biological events in lebranche mullet inhabiting a tropical estuary.…”

Section: Introductionmentioning

confidence: 99%

Seasonal growth of Mugil liza Valenciennes, 1836 in a tropical estuarine system

2015

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Seasonal changes in the abiotic factors and cyclical eventswith the reproduction diagnosed by the gonadosomatic index and the energy status diagnosed by the condition indexwere estimators of seasonal growth for juvenile and adult lebranche mullets, Mugil liza, during the rainy and dry seasons in a tropical estuarine system of the western south Atlantic. Fish were collected monthly by gillnets of different mesh sizes. Salinity, water temperature (°C) and dissolved oxygen (%) were measured using a multiparameter. Daily rainfall data (mm) were obtained from the National Institute of Meteorology. Seasonal rings were identified and counted in the sagittae otoliths. Relative Marginal Increment (RMI) was calculated to determine the seasonal growth rate. Gonadosomatic Index (GSI) and Condition Index (CI) were assessed separately for juveniles and adults by ANOVA, with time (month) M. liza growth is controlled by annual cycles of biological and abiotic processes. Using general linear models, the seasonal growth rate of M. liza was well predicted by body condition and rainfall for juveniles, and by salinity for adults. Seasonal variation was observed in the Munda u Lagoon, with rainfall directly or indirectly being the main seasonal factor influencing the cyclical biological fish processes of M. liza.

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Reproductive biology of the mullet Mugil liza (Teleostei: Mugilidae) in a tropical Brazilian bay

Cited by 33 publications

References 18 publications

Ultrastructure of grey mullet (Mugil cephalus , Linnaeus, 1758) spermatozoa as revealed from light, scanning and transmission electron microscopy

Ultrastructure of grey mullet (Mugil cephalus , Linnaeus, 1758) spermatozoa as revealed from light, scanning and transmission electron microscopy

Fish assemblage structure on sandy beaches with different anthropogenic influences and proximity of spawning grounds

Seasonal growth of Mugil liza Valenciennes, 1836 in a tropical estuarine system

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