Topic
Serranus
About: Serranus is a research topic. Over the lifetime, 165 publications have been published within this topic receiving 3592 citations.
Papers published on a yearly basis
Papers
TL;DR: This study shows that each species pair follows a different strategy segregating along food niche dimensions, and that M. barbatus and M. surmuletus segregate their feeding niche consuming different prey taxa with similar sizes whereas S. cabrilla and S. hepatus differ considerably with respect to the degree to which prey species contribute to their diets coupled with differences in mean prey sizes.
Abstract: The feeding habits of two sympatric species pairs of demersal fish (Mullus barbatus-Mullus surmuletus, Serranus cabrilla-Serranus hepatus) which occupy the shallow coastal area (25–30 m) in Iraklion Bay were investigated from samples collected on a monthly basis (August 1990 to August 1992). Stomach content analyses revealed that all of them were carnivores, feeding mainly on benthic invertebrates, and that each species consumed a narrow range of prey species with no significant dietary overlap. The morphology of their feeding apparatus was compared to examine the effect of any morphological differences on food selection and resource partitioning between the fish species. The species could be distinguished on the basis of the size of their mouth gape, the number of gill rakers and the length of their intestine. This study shows that each species pair follows a different strategy segregating along food niche dimensions. In particular, M. barbatus and M. surmuletus segregate their feeding niche consuming different prey taxa with similar sizes whereas S. cabrilla and S. hepatus differ considerably with respect to the degree to which prey species contribute to their diets coupled with differences in mean prey sizes.
273 citations
TL;DR: The microhabitat use and seasonality of the juveniles of 24 littoral species in the north-west Mediterranean Sea were studied, and Canonical correspondence analysis revealed that the species recruit in well-defined habitats.
Abstract: The microhabitat use and seasonality of the juveniles of 24 littoral species in the north-west Mediterranean Sea were studied between March 1993 and March 1994. Labrids species recruit during summer months, from July to September, whereas sparids recruit at different times of the year. Canonical correspondence analysis revealed that the species recruit in well-defined habitats. Sparid species recruit primarily in the shallowest zone (0 to 2 m), and most of them prefer varied bottoms (sand, gravel or small blocks). Some species of the genus Diplodus have similar habitat requirements, but show a clear seasonal segregation, with each species occupying successively the same zones at a different time of the year. Labrid species show a high degree of seasonal and spatial co-occurrence, and are normally found on rocky substrates with high algal cover. Two species (Mullus surmuletus and Symphodus cinereus) recruit mainly in Posidonia oceanica beds, while other species (Serranus cabrilla, Coris julis, Symphodus ocellatus, S. rostratus), are abundant in both seagrass beds and on rocky substrates.
245 citations
TL;DR: Sagittal otoliths from the Atlantic and Mediterranean regions of Serranus cabrilla L. were compared using shape indices and the G-test was the criterion more useful to identify the otolith origin in the discriminant analysis.
Abstract: Summary
Sagittal otoliths from the Atlantic and Mediterranean regions of Serranus cabrilla L. were compared using shape indices (form-factor, roundness, circularity, rectangularity, ellipticity and eccentricity). Regional differences were best described by form-factor, circularity and eccentricity variables. The canonical discriminant functions were built with form-factor or rectangularity indices. The results indicated slight regional variations. The G-test was the criterion more useful to identify the otolith origin in the discriminant analysis.
215 citations
TL;DR: Comparison of results from BUV with those obtained by Underwater Visual Census at the same locations suggests that although BUVestimates species richness reliably, UVC is the more suitable technique for estimating the abundance of shallow-water reef fish in the Mediterranean.
161 citations
TL;DR: Variations in the morphology of saccular otoliths (sagittae) among three sympatric species of the genus Serranus from the Canary Islands were investigated and S. scriba was distinct in having a rostrum which had a slight turning at the tip and a more funnel-like ostium.
Abstract: Variations in the morphology of saccular otoliths (sagittae) among three sympatric species of the genus Serranus (S. atricauda, S. cabrilla and S. scriba) from the Canary Islands were investigated. Although the otolith gross morphology was similar among species, S. scriba was distinct in having a rostrum which had a slight turning at the tip and a more funnel-like ostium. The shallower water species (S. scriba) had otolith and sulcus areas which were smaller than the deeper water species (S. cabrilla and S. atricauda). The sulcus acusticus and ostium size were correlated with the habit depth of the species, with the highest values in the deepest species, S. cabrilla. The otolith outline shape indices changed with size (total length) of the species, and allowed the separation of the species by means of a discriminate function.
143 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 7 |
| 2020 | 8 |
| 2019 | 5 |
| 2018 | 4 |
| 2017 | 4 |
| 2016 | 6 |