Do the Fish Scales Shape of Mugil curema Reflect the Genetic Structure Using Microsatellites Markers and the Mexican Marine Ecoregions Classification?

Pacheco-Almanzar, Eloísa; Loza-Estrada, Nadia; Ibáñez, Ana L.

doi:10.3389/fmars.2020.00166

Cited by 9 publications

(9 citation statements)

References 36 publications

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“…Fish scales demonstrate numerous hidden morphological and structural characteristics and sculptural design (e.g., type, shape, and size in general term and circuli, radii, lepidonts, and granules configurations in specific term), that contribute efficiently in fish identification and classification at the species level or higher ranks. Scales have been used to access sexual dimorphism, age determination, and growth, past environment experienced by fish, discrimination between hatchery‐reared and wild populations, migration, environmental pollution of the water, assessing the genetic structure of the population, and phylogenetic affinities (Chu, 1935; Dapar, Torres, Fabricante, & Demayo, 2012; Das, 1959; Esmaeili, Zarei, Vahed, & Masoudi, 2019; Ferrito, Corsaro, & Tigano, 2003; Jawad, 2005a, 2005b; Lanzing & Higginbotham, 1974; Pacheco‐Almanzar, Loza‐Estrada, & Ibáñez, 2020; Seshappa, 1999). The use of Scanning Electron Microscopy (SEM) has greatly increased the importance of scale morphology in ichthyological studies by providing hidden characteristics (see Esmaeili et al, 2007; Esmaeili, Baghbani, Zareian, & Shahryari, 2009; Esmaeili et al, 2019; Jawad, 2005a, 2005b; Teimori, Esmaeili, & Motamedi, 2021).…”

Section: Introductionmentioning

confidence: 99%

Hidden morphological and structural characteristics in scales of mullid species (Teleostei: Mullidae) using light and scanning electron digital imaging

Echreshavi

Esmaeili

Teimori

et al. 2021

Microscopy Res & Technique

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The scale morphology of nine Mullidae taxa consisting of three genera and nine species from the Persian Gulf and the Gulf of Oman was described and compared using light and scanning electron microscopy from four different body regions. The general scale type in the studied mullid species was ctenoid except in the head region of Mulloidichthys vanicolensis and Parupeneus margaritatus, which had cycloid scales. The scales demonstrated a large focus with the central or centro‐posterior position. The large variations of scale morphology were observed for the scales from different body regions of a single species. The shape of focus was in five types with the round type being the most common. In the scales of most examined species, there were 5–6 radii present in the anterior field. No radii exist in the lateral and posterior fields, and the radii orientation was parallel in all the studied species. The rostral margin of scales represented five types among the studied species; waved (M. vanicolensis), smooth in (P. rubescens), dentate (Upeneus doriae), scalloped (U. vittatus), and fluted (U. tragula). The lepidont shape varied among the species from blunt to flat, pointed, tiny, sharp, pointed, triangle, short, and long. The results also showed that the relative scale size has a desirable contribution to separate the examined genera. The scale morphological‐based tree was largely consistent with the known systematics of the studied fishes. It was concluded that variation of scale characters has probably taxonomic and even phylogenetic information in both species and genus levels in the studied mullid fishes. However, variation of scale morphology between body regions, as shown in this study, suggests that scale characters should be used cautiously for taxonomic studies of these fishes.

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Section: Introductionmentioning

confidence: 99%

Hidden morphological and structural characteristics in scales of mullid species (Teleostei: Mullidae) using light and scanning electron digital imaging

Echreshavi

Esmaeili

Teimori

et al. 2021

Microscopy Res & Technique

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“…However, no gene flow has occurred between populations to this date, as evidenced by the genetic structure and divergence between A. tropicus populations caused by the allopatric isolation resulting from the Central American mountain range (Barrientos‐Villalobos & Espinosa de los Monteros, 2008). Genetic analyses have shown the close relationship of the genetic structure between the populations of Mugil curema inhabiting the Gulf of Mexico and Pacific basins, also attributed to this mountain range (Pacheco‐Almanzar, Loza‐Estrada & Ibáñez, 2020).…”

Section: Discussionmentioning

confidence: 96%

Modelling the potential distribution of two tropical freshwater fish species under climate change scenarios

Sauz-Sánchez

Rodiles‐Hernández

Andrade-Velázquez

et al. 2021

Aquatic Conservation

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Climate change is causing shifts in the distribution patterns of freshwater fish at various spatio‐temporal scales. Tropical freshwater fish are vulnerable, especially in areas where a high impact of climate change is predicted; thus, there is an increasing need to predict these shifts to determine conservation and adaptation strategies. Ecological niche models offer a reliable way to predict the effects of climate change on species distribution. Potential shifts in the distribution of tropical fish were tested under two scenarios (4.5 – moderate and 8.5 – extreme) with three general circulation models for years 2050 and 2070 using maximum entropy software using as models two predatory species – the tropical gar Atractosteus tropicus and the giant cichlid Petenia splendida. The potential distribution of both species was associated with warm and humid–sub‐humid conditions. Future projections showed a higher availability of suitable areas for both species resulting from the expansion of warmer conditions in the middle and upper basins of the Central American mountain range and centre of the Yucatan Peninsula. Ecological niche models of keystone or umbrella species such as A. tropicus and P. splendida could be useful to support conservation plans of protected areas. The potential distribution of both species covers areas of high suitability including six important biosphere reserves in Mexico, three protected areas in Guatemala and part of the Mesoamerican biological corridor. Despite the potential expansion of the present distribution range suggested by the models, it is important to consider the biological and ecological requirements of the species and the ecological implications of these potential shifts in distribution. Both scenarios could have several implications at genetic, population, and ecosystem levels.

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“…Mugil curema shows wide morphological variation at various localities, especially in the Gulf of Mexico (Ibáñez‐Aguirre et al, 2006). Therefore, the identification of the mullet was based on microsatellite markers (Pacheco‐Almanzar et al, 2017; Pacheco‐Almanzar, Loza‐Estrada & Ibáñez, 2020), in addition to the taxonomic keys of Harrison (2002) and Harrison et al (2007). Thus, tissue samples for DNA extraction were obtained in situ from the caudal fin, placed in 1.5‐ml tubes, and preserved in absolute ethanol until processing in the laboratory for microsatellite analysis (Pacheco‐Almanzar et al, 2017; Pacheco‐Almanzar et al, 2020).…”

Section: Methodsmentioning

confidence: 99%

Unravelling the complex habitat use of the white mullet, Mugil curema, in several coastal environments from Neotropical Pacific and Atlantic waters

Avigliano

Ibáñez

Fabré

et al. 2021

Aquatic Conservation

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The white mullet, Mugil curema, is a widely distributed euryhaline species, the migratory behaviour of which is poorly understood. The objective of this work was to study the large‐scale habitat use of this species for the first time. Several environments were considered, such as euryhaline and hypersaline lagoons, the sea, and a river, distributed in the Central Pacific (Mexico) and Atlantic (Gulf of Mexico, Caribbean Sea‐Venezuela, and north‐eastern Brazil). Otolith core‐to‐edge Sr/Ca ratios of 163 fish, determined by laser ablation inductively coupled plasma mass spectrometry, were used to study the salinity‐habitat migration history of the fish. Fish from Mexico (Tamiahua Lagoon, n = 4; Alvarado Lagoon, n = 2), Venezuela (n = 1), and Brazil (n = 12) (11.1% of the total) showed high Sr/Ca values at early life stages and were classified as marine estuarine opportunists. Two specimens (from Alvarado Lagoon and Balsas River, Mexico) showed Sr/Ca values consistently below the high salinity guide value (salinity < 33.5). For the rest of the fish (87.1%), the Sr/Ca ratio suggested a displacement from the estuary towards the sea or hypersaline environments, and so these fish were classified as estuarine migrants. A change‐point analysis identified six individuals with a single stable otolith Sr/Ca signature through ontogeny (three from Brazil, one from Venezuela, and two from Tamiahua Lagoon, Mexico), suggesting limited displacement between environments with different salinities. The rest of the individuals showed between two and 10 changes in stable Sr/Ca signatures (mean = 4.07 ± 1.85). The highest number of changes in Sr/Ca ratio (4.87 ± 1.1) was found in fish from Laguna Madre (Mexico) and the lowest was found in fish from Brazil (3.27 ± 1.70) (H = 19.8, p = 0.002). Otolith Sr/Ca time series suggest that the migratory estuarine pattern is the most common throughout the study area. This work highlights that the sustainable use of M. curema depends on the conservation of estuaries and the corridors between them and other environments such as lagoons, rivers, mangroves and the sea.

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Do the Fish Scales Shape of Mugil curema Reflect the Genetic Structure Using Microsatellites Markers and the Mexican Marine Ecoregions Classification?

Cited by 9 publications

References 36 publications

Hidden morphological and structural characteristics in scales of mullid species (Teleostei: Mullidae) using light and scanning electron digital imaging

Hidden morphological and structural characteristics in scales of mullid species (Teleostei: Mullidae) using light and scanning electron digital imaging

Modelling the potential distribution of two tropical freshwater fish species under climate change scenarios

Unravelling the complex habitat use of the white mullet, Mugil curema, in several coastal environments from Neotropical Pacific and Atlantic waters

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