The use of fish remains in sediments for the reconstruction of paleoproductivity

Drago, Teresa; Ferreira-Bartrina, Vicente; Santos, A. Miguel P.; Pinheiro, João Pedro

doi:10.1088/1755-1307/5/1/012012

Cited by 4 publications

(6 citation statements)

References 12 publications

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“…Scale identification is a valuable tool in fish biology and in palaeontology. In sediment analysis, for instance, scales can provide valuable information on historical fish population dynamics and palaeo‐productivity (Patterson et al , ; Valdés et al , ; Drago et al , ). Furthermore, scales have been used successfully in dietary studies to determine the identity of prey species for a variety of piscivorous species.…”

Section: Classification Results Of Discriminant Analysis Of Scale Shamentioning

confidence: 99%

“…In contrast to comparative analyses merely based on morphological characteristics or morphometric indices of the scales (Bräger & Moritz, in press), this method is capable of detecting differences in scale geometry that are unavailable to the former approaches. Therefore, the findings presented here provide a solution for lepidological studies where a more reliable discrimination between clupeids is needed (Patterson et al, 2002;Drago et al, 2009).…”

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confidence: 86%

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Scale morphometry allows discrimination of European sardine Sardina pilchardus and round sardinella Sardinella aurita and among their local populations

Bräger

Moritz

Tsikliras

et al. 2016

Journal of Fish Biology

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Landmark-based geometric morphometric analysis revealed differences in scale shape between European sardine Sardina pilchardus and round sardinella Sardinella aurita as well as among the local populations of each species. Fish scale measurements from four different areas in the central and eastern Mediterranean Sea showed that the mean scale shape of the two species using landmark data could be differentiated with high certainty. Populations of S. aurita from the central and eastern Mediterranean Sea could be separated reliably (P < 0·001) with an average discrimination rate of 91%, whereas the average discrimination of the S. pilchardus populations was lower (80%), albeit still high.

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Section: Classification Results Of Discriminant Analysis Of Scale Shamentioning

confidence: 99%

mentioning

confidence: 86%

Scale morphometry allows discrimination of European sardine Sardina pilchardus and round sardinella Sardinella aurita and among their local populations

Bräger

Moritz

Tsikliras

et al. 2016

Journal of Fish Biology

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“…Therefore, knowing the exact length of the specimen that the scales originate from, which is an essential component of the standardizing process in the traditional morphometrics, is no longer needed for the analysis. Our results provide a reliable and efficient way for scale identification in paleontological and dietary studies that can help to overcome the limitations of morphological analyses used in former studies (e.g., Drago et al 2009, Bräger et al 2016a). …”

Section: Tablementioning

confidence: 89%

“…According to the study of Shackleton (1988), scales from these body areas (i.e., "typical scales") were observed in high numbers in the sediments, as well as in samples collected during predatory behaviour of bottlenose dolphins (Bräger et al 2016a). Clupeiformes tend to lose their scales easily (Patterson et al 2002), thus the occurrence of typical clupeiform scales in sediments or biological samples is high (Drago et al 2009, Bräger et al 2016a. Our investigation showed that the rate of correct classification of scales from the above-mentioned body areas (i.e., lateral mid-section of the fish body) was the highest; therefore the reliability of identifying them among recovered scales has a high likelihood.…”

Section: Tablementioning

confidence: 99%

Fish scale identification: From individual to species-specific shape variability

Bräger¹,

Staszny²,

Mertzen³

et al. 2017

Acta Ichthyol. Piscat.

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Bräger Z., Staszny Á., Mertzen M., Moritz T., Horváth G. 2017. Fish scale identification: From individual to species-specific shape variability. Acta Ichthyol. Piscat. 47 (4): 331-338.Background. Species identification from recovered fish scales, e.g., from the sediment or stomach contents, has proven to be problematic for clupeid species. To ensure reliable species discrimination within Clupeidae, we attempted to reveal inter-and intra-specific, as well as, the intra-individual variability of scale shape in two sympatric clupeid species the European pilchard, Sardina pilchardus (Walbaum, 1792) and the round sardinella, Sardinella aurita Valenciennes, 1847. Our aim was to test, whether the landmark-based geometric morphometric method is reliable for species identification from mixed samples. Material and methods. The specimens of European pilchard and round sardinella were collected between May and October 2014 from the Gulf of Ambracia, Greece. The scale samples were taken from ten body areas (marked by letters A-J) of 487 specimens in total. A multiple-step analysis was conducted on randomly selected blind samples. The differences between body areas were assessed with canonical variate analysis (CVA) and discriminant function analysis (DFA) to compute generalized Mahalanobis distances (D) and discriminant functions (T 2 ), respectively. Results. The CVA based on the total scale samples showed that in sardinella, all body areas differed significantly from each other (D = 2.54 ± 0.79, P < 0.001) except for one (area I vs. J: D = 22.36, P = 0.085). In pilchard, two body area pairs represented non-significant group pairs (area D vs. G: D = 1.03, P = 0.12; and area F vs. G: D = 1.21, P = 0.06), whereas all other areas were significantly different (D = 2.43 ± 0.88, P = 0.003). At the last step of the blind sampling procedure, all scales were correctly classified by species with an average discrimination rate as high as 96.3%. Conclusion. In contrast to scale identification based merely on morphology, the geometric morphometric method is capable of detecting differences in scale shape from mixed samples that are unattainable with the former approach. Therefore, a more reliable and effective species identification can be accomplished from recovered scales, especially when discriminating species within the same family or genus.

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“…Due to this character, Garra species do not tend to lose their scales easily, unless in the polluted waters, hence the scale of this fish can be considered as pollution indicator. However, some other fish taxa including clupeiform tend to lose their scales (Patterson et al, 2002; Purrafee Dizaj et al, 2020), and thus the occurrence of typical clupeiform scales in sediments or biological samples is high (Bräger et al, 2017; Drago et al, 2009), and the released scales can be used as a taxonomic tool for fish recognition in paleontological works.…”

Section: Discussionmentioning

confidence: 99%

Scales surface topography: Comparative ultrastructural and decorative characteristics of a modern elasmoid fish scales in a cyprinid fish, Garra shamal (Teleostei: Cyprinidae) using digital optical light and scanning electron microscope imaging

Jufaili

Echreshavi

Esmaeili

2022

Microscopy Res & Technique

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The complex architecture of fish scale has been investigated for several decades to show an existing link between scale morphology/microstructure and systematic/ evolutionary relationships of fishes. In the present study, the surface architecture structure associated with the scales of a hill stream cyprinid fish Garra shamal restricted to the Hajar Mountains of the Arabian Peninsula was examined by optical light and scanning electron microscopy; (i) to describe the whole morphology, architectural design and hidden microstructures of scales in an endemic fish of the Arabian Peninsula, G. shamal, (ii) to investigate the phenotypic plasticity of scales in six selected regions of the fish body, (iii) to show an ontogenetic pattern of scale morphology in different size classes, and (iv) to study morphometric parameters for scales, and determine the most valuable indices for differentiating the scales of different body regions and the different size groups of studied species. For this purpose, scales were removed from six body regions of three size classes. The scale of G. shamal, as an ossified platelet and hard structure covering the outer part of fish in different body parts and size groups, demonstrated numerous hidden morphological and structural characteristics, and sculptural design, for example, type, shape, and size in general term, and circuli (thickness, arrangement, and relative spacing of circuli around the focus), radii (number, shape, its origin from focus), lepidonts (the texture, shape, size, orientation, and type of its attachment), and granules (shape, size, number, and configurations) in a specific term, that can contribute efficiently in fish identification and classification at the genus and species levels. Position of focus, presence of radii in all four fields of scales (anterior, posterior, and laterals) and thus tetra-sectioned type, presence of specific tubercle arrangement on the posterior region, and some scale indices can be used as a taxonomic tool in Garra identification.Moreover, scales in G. shamal demonstrated plasticity in different fish size classes, and the origin of scales on the fish body, revealing a kind of ontogenetic variation, and the importance of key scales (scales below the dorsal fin) in the lepidological studies. The quantitative and qualitative traits described here based on the optical light microscopy and electron scanning microscopy can be implemented along with

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The use of fish remains in sediments for the reconstruction of paleoproductivity

Cited by 4 publications

References 12 publications

Scale morphometry allows discrimination of European sardine Sardina pilchardus and round sardinella Sardinella aurita and among their local populations

Scale morphometry allows discrimination of European sardine Sardina pilchardus and round sardinella Sardinella aurita and among their local populations

Fish scale identification: From individual to species-specific shape variability

Scales surface topography: Comparative ultrastructural and decorative characteristics of a modern elasmoid fish scales in a cyprinid fish, Garra shamal (Teleostei: Cyprinidae) using digital optical light and scanning electron microscope imaging

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