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Fig. 1 in It is recreational but profitability also matters: A cost-effective economic approach to marine recreational fishing in Spain Abstract

Fig. 1: Map of the study area. The darker regions highlighted correspond to Spanish coastal Autonomous Communities.

Fig. 1 in First record of Lepidonotus tenuisetosus (Annelida: Polynoidae) from Tunisia with distributional notes Abstract

Fig. 1: A. Validated Mediterranean locations for Lepidonotus tenuisetosus (white spot: Gulf of Tunis) and Lepidonotus carinulatus (red spot: Alborán Sea; green spot: Peninsula of Sinai). B. Location of Radès area (white spot) in the Gulf of Tunis. D. Collecting site and method at Radès area. A–C: photos from Google Earth (images: © 2020 Landsat/Copernicus, TerraMetrics, Maxar Technologies; data: SIO, NOAA, U. S. Navy, NGA, GEBCO); D: photo by Marwa Chaibi.

Fig. 6 in Polyclinum constellatum (Tunicata, Ascidiacea), an emerging non-indigenous species of the Mediterranean Sea: integrated taxonomy and the importance of reliable DNA barcode data Abstract

Fig. 6: ML phylogenetic tree of the genus Polyclinum (sequences abbreviation: Pln) based on COI nucleotide sequences (1560 aligned nucleotide sites; best-fit substitution model GTR+I+G; bootstrap on 100 replicates). Eudistoma and Pseudodistoma species were used as outgroups. The sequence list and species abbreviations are reported in Supplementary table S1. Black dots: bootstrap values ≥ 70 %; red: P. constellatum sequences; blue: P. indicum sequences; yellow background: our sequences.

Fig. 4 in First record of Lepidonotus tenuisetosus (Annelida: Polynoidae) from Tunisia with distributional notes Abstract

Fig. 4: Lepidonotus tenuisetosus. A. Notochaetae from chaetiger 15. B. Tip of notochaeta. C. Neurochaetae from first chaetiger. D. Neurochaetae from chaetiger 15.

Fig. 4 in Polyclinum constellatum (Tunicata, Ascidiacea), an emerging non-indigenous species of the Mediterranean Sea: integrated taxonomy and the importance of reliable DNA barcode data Abstract

Fig. 4: A, C) Colonies of Polyclinum constellatum with different colours photographed and collected in the Heraklion marina (Crete) (A: colony K11 and C: colony K12); B) Transversal section of the colonies, joined only at the surface layer (upper white arrow); D) Zooid extracted from the red-orange colony (K11), with magnification of the 6-lobed anus; E) Zooid extracted from the dark blue colony (K12) with magnification of the 6-lobed anus. Both K11 and K12 have the same COI haplotype (sequence AC number: MT873559).

Fig. 4 in The dual impact of Ostreopsis cf. ovata on Mytilus galloprovincialis and Paracentrotus lividus: Toxin accumulation and pathological aspects Abstract

Fig. 4: Health status of sea urchins (avg±SDV, n = 4 animals) exposed to Ostreopsis cf. ovata (strain D483) for five days at different cell densities. Health index 1 corresponds to all four sea urchins alive after five days of exposure, 0 to all sea urchins dead in four days, intermediate values to different degrees of damage such as spine folded, partial and total spine loss and death in five days.

Fig. 5 in Polyclinum constellatum (Tunicata, Ascidiacea), an emerging non-indigenous species of the Mediterranean Sea: integrated taxonomy and the importance of reliable DNA barcode data Abstract

Fig. 5: A) Larva of P. constellatum, showing the ocellus, four long narrow ampullae, three adhesive papillae and a group of a few small ventral vesicles (red arrow). am, ampullae; ap, adhesive papillae; oc, ocellus; B) Larva of P. constellatum, red arrow pointing out the calcite crystal in the middle of the body.

Fig. 6 in The dual impact of Ostreopsis cf. ovata on Mytilus galloprovincialis and Paracentrotus lividus: Toxin accumulation and pathological aspects Abstract

Fig. 6: Sea-urchin health status (avg±SDV, n = 4) after exposure to whole Ostreopsis cf. ovata cultures (strain 00APS0810-S1) or toxins extracted from cultures of the same cell density.

Fig. 2 in The dual impact of Ostreopsis cf. ovata on Mytilus galloprovincialis and Paracentrotus lividus: Toxin accumulation and pathological aspects Abstract

Fig. 2: Feeding of Mytilus galloprovincialis on Ostreopsis cf. ovata in a 72 h experiment. Weight-normalised ingested cells (avg±SDV) at different time intervals. Fresh microalgal cultures (2.17±0.23·103 cells ml-1) were provided every 24 h. Of the 10 animals of each replicate, 7-8 died at the beginning of the second day while the survivors were toxic (Table 1).

Fig. 5 in The dual impact of Ostreopsis cf. ovata on Mytilus galloprovincialis and Paracentrotus lividus: Toxin accumulation and pathological aspects Abstract

Fig. 5: Sea urchin health status (avg±SDV, n = 4) upon exposure to entire or sonicated Ostreopsis cf. ovata cultures (strain D483) of the same initial cell density.

Fig. 3 in The dual impact of Ostreopsis cf. ovata on Mytilus galloprovincialis and Paracentrotus lividus: Toxin accumulation and pathological aspects Abstract

Fig. 3: Feeding of Paracentrotus lividus (avg±SDV, n = 15) on Ostreopsis cf. ovata epiphytic on the red alga Asparagopsis taxiformis in five experiments lasting five days each. Experiment 4b was performed with the same animals as 4a, which were given a second stock of seaweeds after a two- day interval. Macroalgae (55-131 g) were completely eaten in all cases. Four additional experiments at low epiphytic cell density (<3.4·103 cells g-1) are not represented. Asterisks indicate the experiments in which sea urchins were weakly toxic at the mouse bioassay (Supplementary Material, Table S2).

Fig. 1 in The dual impact of Ostreopsis cf. ovata on Mytilus galloprovincialis and Paracentrotus lividus: Toxin accumulation and pathological aspects Abstract

Fig. 1: Feeding of Mytilus galloprovincialis in six 24 h experiments with animals of different sizes exposed to different Ostreopsis cf. ovata cell concentrations. A) Mussel wet weight (WW) and O. cf. ovata cell density at the beginning of each experiment (avg±SDV). B) Weight-normalised ingested cells (avg±SDV). The asterisks indicate experiments in which some or all replicates were toxic to the mouse bioassay (Supplementary Material, Table S1).

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Fig. 4 in It is recreational but profitability also matters: A cost-effective economic approach to marine recreational fishing in Spain Abstract

Fig. 4: Economic indicator by: A) the main fishing modalities: spearfishing, shore-fishing and boat-fishing and B) spearfishing diving approach.

opencc-by-4.0Feb 2024View details →

Fig. 2 in Navigating through ocean literacy gaps: an analysis of elementary school textbooks in Croatian education Abstract

Fig. 2: Presence of ocean literacy principles (OLP) and concepts (OLC) in lower grades of the elementary school science textbooks in Croatia (grades 1-4). Results are presented as average occurrence and standard deviation of books analysed for each grade.

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Fig. 3 in It is recreational but profitability also matters: A cost-effective economic approach to marine recreational fishing in Spain Abstract

Fig. 3: Daily expenses. A) Spearfishing by diving approach and B) Boat fishing (angling) by type of vessel. The percentage of responses by modality in brackets.

opencc-by-4.0Feb 2024View details →

Fig. 1 in Navigating through ocean literacy gaps: an analysis of elementary school textbooks in Croatian education Abstract

Fig. 1: Mean contribution of pages with ocean-related topics in the text (A) and illustration (B) in the Croatian elementary school textbooks. Error bars represent the standard deviation among different publishers or textbook lines.

Fig. 2 in Polyclinum constellatum (Tunicata, Ascidiacea), an emerging non-indigenous species of the Mediterranean Sea: integrated taxonomy and the importance of reliable DNA barcode data Abstract

Fig. 2: A) Orange colony of Polyclinum constellatum from Taranto harbour (colony P1); B) Magnification of the oral (arrow pointing put the oral tentacles of different size) and cloacal aperture (asterisk); C) P. constellatum collected in Heraklion (colony K19) with zooids arranged in systems around the cloacal apertures; D) Section of the colony showing the zooids located only around the outer edge (arrow).

Fig. 8 in First record of Lepidonotus tenuisetosus (Annelida: Polynoidae) from Tunisia with distributional notes Abstract

Fig. 8: Size relationships in Lepidonotus tenuisetosus. A. Body width without parapodia (WoP) vs. body length. B. Body width with parapodia (WP) vs. body length.

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Fig. 4 in Navigating through ocean literacy gaps: an analysis of elementary school textbooks in Croatian education Abstract

Fig. 4: Best-case scenario of presence of ocean sciences topics according to OL principles and concepts in the elementary school textbooks in Croatia.

Fig. 6 in First record of Lepidonotus tenuisetosus (Annelida: Polynoidae) from Tunisia with distributional notes Abstract

Fig. 6: Lepidonotus sp., NHMR PMR-17630, Croatia: A. Anterior end, dorsal view. B. Parapodia 7 and 8, right side. C. Neurochaetae from parapodium 8 (right side). D. Neurochaetae from parapodium 8 (left side). E. Neurochaetae from parapodium 9 (right side).