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Fig. 3 in Spatio-temporal variation of the invasive copepod Oithona davisae in the zooplankton community of Kavala harbour Abstract

Fig. 3: Abundance (individuals m-3) of the zooplankton community, grouped by sampling stations, during the sampling period 2017-2018 in Kavala harbour.

Fig. 3 in On the biology of blackbellied angler, Lophius budegassa Spinola, 1807, in the north-western Mediterranean Abstract

Fig. 3: Heatmap representing the spatial distribution of blackbellied angler in terms of biomass per spatial unit, obtained from MEDITS survey data (1994-2021).

Fig. 6 in Spatial variation of summer microphytoplankton and zooplankton communities related to environmental parameters in the coastal area of Djerba Island (Tunisia, Eastern Mediterranean) Abstract

Fig. 6: Spatial variation of copepod demographic class density: copepod nauplii, copepodit and adult males and females along the west and east coasts of Djerba Island.

Fig 8 in Spatial variation of summer microphytoplankton and zooplankton communities related to environmental parameters in the coastal area of Djerba Island (Tunisia, Eastern Mediterranean) Abstract

Fig 8: Correlation matrix (Pearson test) for biological variables in relation to abiotic variables determined along the west and east coasts of Djerba Island.

Fig. 4 in Spatial variation of summer microphytoplankton and zooplankton communities related to environmental parameters in the coastal area of Djerba Island (Tunisia, Eastern Mediterranean) Abstract

Fig. 4: Spatial variations of microphytoplankton abundance, microphytoplankton groups, dominant species, species richness and species diversity index along the west and east coasts of Djerba Island.

Fig. 6 in On the biology of blackbellied angler, Lophius budegassa Spinola, 1807, in the north-western Mediterranean Abstract

Fig. 6: Sections of illicia of L. budegassa (magnification 100x). Left: Female, 28.0 cm TL; Right: Female, 42.5 cm TL.

Fig. 7 in Spatial variation of summer microphytoplankton and zooplankton communities related to environmental parameters in the coastal area of Djerba Island (Tunisia, Eastern Mediterranean) Abstract

Fig. 7: Principal component analysis (PCA) (axis I and II) of microphytoplankton and zooplankton communities' abundance and selected environmental variables along the west and east coasts of Djerba Island.

Fig. 3 in Spatial variation of summer microphytoplankton and zooplankton communities related to environmental parameters in the coastal area of Djerba Island (Tunisia, Eastern Mediterranean) Abstract

Fig. 3: Spatial variations of nutrient concentrations: nitrite (NO -), nitrate (NO -), ammonium (NH +), total nitrogen (T- 2 3 4 N), orthophosphate (PO 3-), total phosphate (T-P), N/P ratio, 4 and silicate along the west and east coasts of Djerba Island.

Fig. 1 in Spatial variation of summer microphytoplankton and zooplankton communities related to environmental parameters in the coastal area of Djerba Island (Tunisia, Eastern Mediterranean) Abstract

Fig. 1: Location of sampling stations along the western and eastern coasts of Djerba Island. The grey contour lines in the maps show the position of the isobaths and the numbers in parenthesis indicate the depths of these isobaths. Table 1. Sampling date, depth, latitude and longitude of sampled stations.

Fig. 2 in On the biology of blackbellied angler, Lophius budegassa Spinola, 1807, in the north-western Mediterranean Abstract

Fig. 2: Temporal evolution of biomass and density indices from MEDITS survey data (1994 2021). Shaded areas are standard deviations.

Fig. 2 in Vulnerability of elasmobranchs caught as bycatch in the grouper longline fishery in the Gulf of Gabès, Tunisia Abstract

Fig. 2: Productivity, susceptibility and vulnerability scores of elasmobranch species caught by the grouper demersal longline fishery in the Gulf of Gabès. Numbers correspond to elasmobranch species as listed in Table 4. The colors represent the relative vulnerability: the green areas being the lowest, the yellow ones being the moderate and the red areas being the highest.

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Fig. 3 in Refining the Occurrence of Viral Encephalopathy and Retinopathy, Photobacteriosis, and Vibriosis in Connection with Seawater Physicochemical Parameters: A Five-Year Case Study Abstract

Fig. 3: Presence/absence of fish diseases in the years 2011-2015. (A: VER - Viral Encephalopathy & Retinopathy, B: PHDP - Photobacteriosis, C: VAO1 - Vibriosis). For the presence of disease, the value was [1], and for absence, it was [0].

Fig. 8 in On the biology of blackbellied angler, Lophius budegassa Spinola, 1807, in the north-western Mediterranean Abstract

Fig. 8: Age bias plots between two readers with the mean age recorded (black points) and 95% confidence intervals (bars). Red points represent mean age estimates that differ significantly between readers.

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Fig. 5 in Spatio-temporal variation of the invasive copepod Oithona davisae in the zooplankton community of Kavala harbour Abstract

Fig. 5: Abundances (ind m-3) (mean ± SD) of Oithona davisae and Oithona nana during the sampling period 2017-2018 in Kavala harbour.

Fig. 1 in Vulnerability of elasmobranchs caught as bycatch in the grouper longline fishery in the Gulf of Gabès, Tunisia Abstract

Fig. 1: Map showing the location of the grouper demersal longline sets surveyed during 2016 () and 2017 () in the Gulf of Gabès.

Fig. 8 in In situ experiments on the effect of low pH on the ultrastructure of the seagrasses Cymodocea nodosa and Posidonia oceanica Abstract

Fig. 8: A-H. TEM micrographs of young epidermal cells of C. nodosa after three weeks transfer at S2 area. A. Surface view of epidermal cells. They are disorganized and most of the organelles are not easily seen. B. Epidermal cell with wavy cell walls and a central nucleus with loose and partially disrupted nuclear membrane. C. A group of peripherally distributed mitochondria containing a rather amorphous mass of destroyed cristae. D. Dictyosome with rounded and loose cisternae. E. Disorganized chloroplasts with remnants of thylakoids and starch grains. F. Cortical cytoplasmic area with disorganized mitochondria and inflated ER fragments. G. Higher magnification of inflated fragments of RER with attached electron-dense material. H. ER membrane-like network with projecting edges filled with electron-dense material. Scale bars = 2 μm (A), 1μm (B) 0.5μm (C), 0.2 (D, E, F) and 0.1 (G, H).

Fig. 6 in In situ experiments on the effect of low pH on the ultrastructure of the seagrasses Cymodocea nodosa and Posidonia oceanica Abstract

Fig. 6: A-E. TEM micrographs of young epidermal cells of C. nodosa after three weeks transfer at S1 area. A. Group of epidermal cells that appear empty, with most of the cell elements disorganized and distorted. B. Higher magnification of a nucleus with condensed masses of chromatin which covered most of the nucleoplasm. The nuclear membrane appears loose and discontinuous. C. Cytoplasmic area showing dictyosomes with few cisternae and numerous swollen fragments of rough ER (RER) D. Fragmented ER membranes traversing the cortical cytoplasm. E. Disorganized chloroplasts with large starch grains surrounded by a system of electron-dense elongated or round plastoglobuli. Mitochondria with a few broken and sometimes dilated cristae are also observed. Scale bars = 1 μm (A), 0.5μm (B, C, E) and 0.2μm (D).

Fig. 5 in In situ experiments on the effect of low pH on the ultrastructure of the seagrasses Cymodocea nodosa and Posidonia oceanica Abstract

Fig. 5: A-C. TEM micrographs of young epidermal cells of P. oceanica after one week transfer at S2 area. A. Epidermal cell with increased number of chloroplasts and mitochondria. B. Chloroplast with oval-shaped and rod-like plastoglobuli around starch grains. Mitochondria with very few fragmented cristae are also visible. C. Dictyosomes and fragmented ER network extended along the cell periphery. Scale bars = 1 μm (A), and 0.5μm (B, C).

Fig. 9 in In situ experiments on the effect of low pH on the ultrastructure of the seagrasses Cymodocea nodosa and Posidonia oceanica Abstract

Fig. 9: A-F. TEM micrographs of young epidermal cells of P. oceanica after three weeks transfer at S2 area. A. Group of epidermal cells that appear distorted, with wavy cell walls. B. Part of an epidermal cell with a central nucleus with disorganized nuclear membrane. The nucleus is surrounded by remnants of cell organelles and an electron-dense ER network. C. Chloroplasts with remnants of thylakoids and plastoglobuli, and disorganized mitochondria. Both appear empty and destroyed. D. Starch grains from disorganized chloroplasts appear dispersed in the cytoplasm. E. Cytoplasmic area with structures of ER network connected and/or filled with electron-dense material. F. Higher magnification of inflated, swollen RER cisternae, filled with electron-dense material. Scale bars = 2 μm (A), 1μm (B) 0.2 (C, D, E,) and 0.1 (F).

Fig. 1 in In situ experiments on the effect of low pH on the ultrastructure of the seagrasses Cymodocea nodosa and Posidonia oceanica Abstract

Fig. 1: A-E. TEM micrographs of young epidermal cells of C. nodosa control material. A. Paradermal section of an epidermal cell. Note its orthogonal shape, the dense cytoplasm, and the large nucleus occupying most of the cell space. B. Higher magnification of the peripheral part of the cell of Fig. A, showing the cell wall and cortical endoplasmic reticulum (ER). C. Cytoplasmic area taken from a plant transferred for one week to S1 area. Note the increased number of mitochondria, dictyosomes and ER, compared to the control. D. Epidermal cell after transfer for one week from S1. It shows a prominent central nucleus, undifferentiated chloroplasts with few grana and an increased number of mitochondria and ER membranes. E. Higher magnification of a cortical cytoplasmic area of a cell like D showing an extended ER network distributed in the cell periphery. Scale bars = 2 μm (A), 1μm (D) and 0.2μm (B, C, E).