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Journal articles on the topic 'Sciaena umbra'

Author: Grafiati

Published: 5 May 2023

Last updated: 6 December 2023

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1

Picciulin, Marta, Chiara Facca, Riccardo Fiorin, Federico Riccato, Matteo Zucchetta, and Stefano Malavasi. "It Is Not Just a Matter of Noise: Sciaena umbra Vocalizes More in the Busiest Areas of the Venice Tidal Inlets." Journal of Marine Science and Engineering 9, no. 2 (February 23, 2021): 237. http://dx.doi.org/10.3390/jmse9020237.

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Boat noise is known to have a detrimental effect on a vulnerable Mediterranean sciaenid, the brown meagre Sciaena umbra. During summer 2019, two acoustic surveys were conducted at 40 listening points distributed within the inlet areas of Venice (northern Adriatic Sea). Two five-minute recordings were collected per each point during both the boat traffic hours and the peak of the species’ vocal activity with the aims of (1) characterizing the local noise levels and (2) evaluating the fish spatial distribution by means of its sounds. High underwater broadband noise levels were found (sound pressure levels (SPLs)50–20kHz 107–137 dB re 1 μPa). Interestingly, a significantly higher background noise within the species’ hearing sensibility (100–3150 Hz) was highlighted in the afternoon (113 ± 5 dB re 1 μPa) compared to the night (103 ± 7 dB re 1 μPa) recordings due to a high vessel traffic. A cluster analysis based on Sciaena umbra vocalizations separated the listening points in three groups: highly vocal groups experienced higher vessel presence and higher afternoon noise levels compared to the lower ones. Since the species’ sounds are a proxy of spawning events, this suggests that the reproductive activity was placed in the noisier part of the inlets.

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2

La Manna, G., M. Manghi, F. Perretti, and G. Sarà. "Behavioral response of brown meagre (Sciaena umbra) to boat noise." Marine Pollution Bulletin 110, no. 1 (September 2016): 324–34. http://dx.doi.org/10.1016/j.marpolbul.2016.06.045.

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3

Bartoli, Pierre, and David I. Gibson. "Three rare and little known cryptogonimid digeneans from the sciaenid fish Sciaena umbra (L.) in the western Mediterranean." Systematic Parasitology 30, no. 2 (March 1995): 121–39. http://dx.doi.org/10.1007/bf00010166.

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4

Hamzaçebi, Sevim, and Erkan Can. "First Results on Spawning and Larval Rearing of the Brown Meagre (Sciaena umbra)." Acta Natura et Scientia 2, no. 1 (May 6, 2021): 22–28. http://dx.doi.org/10.29329/actanatsci.2021.314.4.

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5

AKMIRZA, Ahmet. "Metazoan parasites of brown meagre (Sciaena umbra L. 1758) caught near Gökçeada, Turkey." TURKISH JOURNAL OF VETERINARY AND ANIMAL SCIENCES 38 (2014): 299–303. http://dx.doi.org/10.3906/vet-1209-35.

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6

Firidin, Sirin, Oguzhan Eroglu, and Ilhan Altinok. "Genetic characterization of brown meagre (Sciaena umbra) and Shi Drum (Umbrina cirrosa) populations." Biochemical Systematics and Ecology 68 (October 2016): 200–209. http://dx.doi.org/10.1016/j.bse.2016.07.023.

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7

Picciulin, M., M. Bolgan, A. Codarin, R. Fiorin, M. Zucchetta, and S. Malavasi. "Passive acoustic monitoring of Sciaena umbra on rocky habitats in the Venetian littoral zone." Fisheries Research 145 (August 2013): 76–81. http://dx.doi.org/10.1016/j.fishres.2013.02.008.

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8

Chater, Inès, Ahlem Romdhani-Dhahri, Jean Louis Dufour, Kélig Mahé, and Nadia Chakroun-Marzouk. "Age, growth and mortality of Sciaena umbra (Sciaenidae) in the Gulf of Tunis." Scientia Marina 82, no. 1 (March 20, 2018): 17. http://dx.doi.org/10.3989/scimar.04679.21a.

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The growth and mortality of the brown meagre, Sciaena umbra from the Gulf of Tunis, were investigated using a sample of 276 specimens, ranging from 15.3 to 49.2 cm total length and from 43 to 1565 g total weight. Specimens were collected from artisanal fisheries between October 2008 and September 2011. Otoliths were extracted, thin cross-sections were realized and radii were measured. The log-linear morphometric relationships between total length-total weight and total length-otolith radius were significant (p < 0.05), showed positive allometry (b=3.15) and isometry (b=0.90), respectively. The marginal analysis suggested that only one growth increment was deposited per year. The maximum age of the brown meagre was 22 years for males and 31 years for females. The fit of the von Bertalanffy growth function was significantly different between sexes (p

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Kacem, Hichem, and Jordi Miquel. "Spermatological characteristics of Siphoderina aloysiae (Digenea, Cryptogonimidae), an intestinal parasite of Sciaena umbra (Teleostei, Sciaenidae)." Zoomorphology 138, no. 2 (January 14, 2019): 185–92. http://dx.doi.org/10.1007/s00435-019-00434-8.

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10

Bougatef, Hajer, Fatma Krichen, Federica Capitani, Ikram Ben Amor, Francesca Maccari, Veronica Mantovani, Fabio Galeotti, Nicola Volpi, Ali Bougatef, and Assaad Sila. "Chondroitin sulfate/dermatan sulfate from corb (Sciaena umbra) skin: Purification, structural analysis and anticoagulant effect." Carbohydrate Polymers 196 (September 2018): 272–78. http://dx.doi.org/10.1016/j.carbpol.2018.05.019.

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11

AYDIN, Mehmet, and Barış BODUR. "Morphologic Characteristics and Length-Weight Relationships of Sciaena umbra (Linnaeus, 1758) in the Black Sea Coast." Marine Science and Technology Bulletin In Press (June 30, 2021): 8–15. http://dx.doi.org/10.33714/masteb.738661.

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12

Bougatef, Hajer, Zohra Ghlissi, Rim Kallel, Ikram Ben Amor, Tahiya Boudawara, Jalel Gargouri, Zouheir Sahnoun, Nicola Volpi, Assaad Sila, and Ali Bougatef. "Chondroitin/dermatan sulfate purified from corb (Sciaena umbra) skin and bone: In vivo assessment of anticoagulant activity." International Journal of Biological Macromolecules 164 (December 2020): 131–39. http://dx.doi.org/10.1016/j.ijbiomac.2020.07.096.

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13

Bougatef, Hajer, Fatma Krichen, Federica Capitani, Ikram Ben Amor, Jalel Gargouri, Francesca Maccari, Veronica Mantovani, et al. "Purification, compositional analysis, and anticoagulant capacity of chondroitin sulfate/dermatan sulfate from bone of corb (Sciaena umbra)." International Journal of Biological Macromolecules 134 (August 2019): 405–12. http://dx.doi.org/10.1016/j.ijbiomac.2019.05.036.

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14

Holmes, J., and P. Bartoli. "Spatio-temporal structure of the communities of helminths in the digestive tract of Sciaena umbra L. 1758 (Teleostei)." Parasitology 106, no. 5 (June 1993): 519–25. http://dx.doi.org/10.1017/s0031182000076824.

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SUMMARYThe helminth community in the digestive tract of the sedentary predatory fish, Sciaena umbra, near the Scandola Nature Reserve, Corsica, consists of 5 species of digeneans. Anoiktostoma coronatum (in the rectum) and Metadena pauli (in the intestine) were found in almost all the fish, and in high numbers; they are considered core species. Distomum aloysiae, Pleorchis polyorchis (both in the intestine), and Stephanostomum bicoronatum (in the rectum) were relatively uncommon, usually found in small numbers, and are considered satellite species. The two core species were very abundant in June, when the size of their populations was strongly correlated with the size of the host fish. At this time, M. pauli was found mainly in the duodenum, but in high populations was spread throughout the intestine (s. strict.). Both species were much less abundant in October, their populations were less dependent on host size, and M. pauli was more limited to the anterior intestine. Pleorchis polyorchis and Distomum aloysiae were more frequent in October, were found predominately in fish with few M. pauli, and were found posterior to M. pauli, suggesting some interactions between these species. Stephano-stomum bicoronatum showed no seasonal patterns, and no apparent interactions with A. coronatum.

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CHATZIFOTIS, Stavros, Adriana VILLAMOR MARTIN-PRAT, Nikos LIMBERIS, Nikos PAPANDROULAKIS, and Pascal DIVANACH. "First data on growth of cultured brown meagre Sciaena umbra using diets with different protein and fat contents." Fisheries Science 72, no. 1 (February 2006): 83–88. http://dx.doi.org/10.1111/j.1444-2906.2006.01120.x.

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16

KOLYGAS, M. N., E. LAMPOU, D. DOUKAS, D. TONTIS, I. S. PAPPAS, E. GOURZIOTI, V. BAKOPOULOS, E. KAKAVA, and F. ATHANASSOPOULOU. "Squamous Cell Carcinoma (SCC) in Brown meagre (Sciaena umbra Linnaeus, 1758), a new candidate species for aquaculture in Mediterranean." Journal of the Hellenic Veterinary Medical Society 71, no. 3 (October 15, 2020): 2399. http://dx.doi.org/10.12681/jhvms.25104.

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A case of epithelial tissue tumors on the body of two adult Brown meagres (Sciaena umbra Linnaeus, 1758) is reported. Brown Meagre population of 20.000 was imported to sea cages on September of 2003 at 3g, to check the potential use of this species as a new candidate in Mediterranean aquaculture. The population had been kept for 8 years to serve as a genetic pool for further zootechnical investigation. The main pathology observed after 8 years in the sea cages were mainly ocular lesions (cataract) possibly due to natural aging and/or long culture period under high natural light intensity (UV radiation) and/or net injuries at a percentage of 1,32% of total cultured population. Apart from that, on two fish, reddish- white tumorous growths were evident on skin, macroscopically. Histologically, the timorous growths were diagnosed as Squamous cell carcinoma. Numerous rounded pearls and nests of epidermal proliferated cells were evident, some of which had a non-cellular center. There were also foci of necrosis and irregular deposits of keratin within the tumor tissue. Special stains (Ayoub-Shklar, Haematoxylin-Eosin & Schiff’s Periodic Acid) were applied to the tissue for comparison. To our knowledge this is the first presented report of SCC in this species.

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17

Тамойкин, И. Ю., О. Н. Кулешова, and В. С. Кулешов. "Новые сведения о темном горбыле Sciaena umbra (Sciaenidae) у черноморских берегов Крыма по результатам подводных наблюдений в режиме апноэ." Биология внутренних вод, no. 2 (2021): 191–97. http://dx.doi.org/10.31857/s0320965221020169.

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18

Roman, Ye G., and V. M. Kovalenko. "Find of the Brown meagre Sciaena umbra Linnaeus, 1758 (Perciformes, Sciaenidae) in the Jarilgatskiy Gulf of the Black Sea." Marine Ecological Journal, no. 1 (2020): 70–71. http://dx.doi.org/10.47143/1684-1557/2020.1.10.

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19

Alós, J., and M. Cabanellas-Reboredo. "Experimental acoustic telemetry experiment reveals strong site fidelity during the sexual resting period of wild brown meagre, Sciaena umbra." Journal of Applied Ichthyology 28, no. 4 (March 5, 2012): 606–11. http://dx.doi.org/10.1111/j.1439-0426.2012.01955.x.

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20

Harmelin-Vivien, Mireille, Jean-Michel Cottalorda, Jean-Marie Dominici, Jean-Georges Harmelin, Laurence Le Diréach, and Sandrine Ruitton. "Effects of reserve protection level on the vulnerable fish species Sciaena umbra and implications for fishing management and policy." Global Ecology and Conservation 3 (January 2015): 279–87. http://dx.doi.org/10.1016/j.gecco.2014.12.005.

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21

Picciulin, Marta, Riccardo Fiorin, Chiara Facca, and Stefano Malavasi. "Sound features and vocal rhythms as a proxy for locating the spawning ground of Sciaena umbra in the wild." Aquatic Conservation: Marine and Freshwater Ecosystems 30, no. 7 (June 3, 2020): 1299–312. http://dx.doi.org/10.1002/aqc.3340.

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22

Colla, S., F. Pranovi, R. Fiorin, S. Malavasi, and M. Picciulin. "Using passive acoustics to assess habitat selection by the brown meagre Sciaena umbra in a northern Adriatic Sea mussel farm." Journal of Fish Biology 92, no. 5 (March 7, 2018): 1627–34. http://dx.doi.org/10.1111/jfb.13589.

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23

Burchardt, Lara S., Marta Picciulin, Eric Parmentier, and Marta Bolgan. "A primer on rhythm quantification for fish sounds: a Mediterranean case study." Royal Society Open Science 8, no. 9 (September 2021): 210494. http://dx.doi.org/10.1098/rsos.210494.

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We have used a lately established workflow to quantify rhythms of three fish sound types recorded in different areas of the Mediterranean Sea. So far, the temporal structure of fish sound sequences has only been described qualitatively. Here, we propose a standardized approach to quantify them, opening the path for assessment and comparison of an often underestimated but potentially critical aspect of fish sounds. Our approach is based on the analysis of inter-onset-intervals (IOIs), the intervals between the start of one sound element and the next. We calculate exact beats of a sequence using Fourier analysis and IOI analysis. Furthermore, we report on important parameters describing the variability in timing within a given sound sequence. Datasets were chosen to depict different possible rhythmic properties: Sciaena umbra sounds have a simple isochronous—metronome-like—rhythm. The /Kwa/ sound type emitted by Scorpaena spp. has a more complex rhythm, still presenting an underlying isochronous pattern. Calls of Ophidion rochei males present no rhythm, but a random temporal succession of sounds. This approach holds great potential for shedding light on important aspects of fish bioacoustics. Applications span from the characterization of specific behaviours to the potential discrimination of yet not distinguishable species.

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Picciulin, M., M. Bolgan, A. B. Corò, G. Calcagno, and S. Malavasi. "Sound production by the Shi drum Umbrina cirrosa and comparison with the brown meagre Sciaena umbra : a passive acoustic monitoring perspective." Journal of Fish Biology 88, no. 4 (March 8, 2016): 1655–60. http://dx.doi.org/10.1111/jfb.12926.

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25

Barone, Grazia, Arianna Storelli, Rita Garofalo, Rosanna Mallamaci, and Maria Maddalena Storelli. "Residual Levels of Mercury, Cadmium, Lead and Arsenic in Some Commercially Key Species from Italian Coasts (Adriatic Sea): Focus on Human Health." Toxics 10, no. 5 (April 28, 2022): 223. http://dx.doi.org/10.3390/toxics10050223.

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This study provides information on the potential human health risk of Hg, Cd, Pb and As exposure from consumption of two fish species (Umbrina cirrosa and Sciaena umbra) in the general population and in high-level fish consumers. The concentrations did not show significant differences between the two species, and no fish length element level–body-length relationship was observed, except for Hg. The average metal(loid) levels, irrespective of species, varied in the following ranges: Hg = 0.18–0.19, Cd = 0.07–0.10, Pb = 0.10–0.12, As = 0.59–0.69 μg g−1 w.w. The concentrations remained below the maximum permissible limits (MPLs) for human consumption, except for Cd. The estimated intakes of Hg, Cd and Pb in both consumption scenarios were lower than the respective PTWI/PTMIs, as well as those of inorganic As, which were even lower than the BMDL01. The non-carcinogenic risk (THQ) did not reveal any concerns, except for Hg. The lifetime health cancer risk (ILCR) suggested hazard exclusively from Cd, although for high-level fish consumers, even the ILCR of inorganic As was, in some cases, above the acceptable range. Continuous monitoring of metal(loid) levels in these fish is strongly recommended because the results demonstrate the occurrence of potential health risks, especially in high-level fish consumers, due to the presence of Hg and Cd.

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Mouillot, David, Jean-Michel Culioli, and Thang Do Chi. "Indicator species analysis as a test of non-random distribution of species in the context of marine protected areas." Environmental Conservation 29, no. 3 (September 2002): 385–90. http://dx.doi.org/10.1017/s0376892902000267.

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Species are identified as bioindicators when their presence or abundance within sites of a particular habitat or a conservation area are high. Dufrêne and Legendre (1997), Ecological Monographs 67: 345–366, proposed the use of a flexible asymmetrical approach to detect indicator species and species assemblages characterizing groups of sites, the indicator value for each species being subsequently tested by randomization. Although the advantages of these methods in comparison to other multivariate or two-way indicator species analyses have been demonstrated, relatively few ecological studies have made use of them. The aim of the present study was to demonstrate the advantages of the indicator species test using a data set generated by traditional fisheries activities at four areas in the Bonifacio Strait Marine Reserve, Corsica, France. ANOVA, Kruskal-Wallis and another randomization test were also performed on the same data set. Of the 54 species caught in the fishing nets, the indicator species analyses identified 19 species for which the indicator value was significant for a given area, whereas the a posteriori Tukey test for ANOVA detected only 12 species for which the mass capture per unit effort was significantly greater for a given area. The efficiency of this new approach within the framework of conservation and marine reserve studies is demonstrated by focusing on three species (Sciaena umbra, Palinurus elephas and Maja verrucosa).

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Guidetti, Paolo, Laura Verginella, Celeste Viva, Roberto Odorico, and Ferdinando Boero. "Protection effects on fish assemblages, and comparison of two visual-census techniques in shallow artificial rocky habitats in the northern Adriatic Sea." Journal of the Marine Biological Association of the United Kingdom 85, no. 2 (March 31, 2005): 247–55. http://dx.doi.org/10.1017/s0025315405011124h.

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Fish assemblages associated with shallow (4–7 m deep) artificial rocky habitats (i.e. breakwaters) have been assessed between July 2002 and September 2003, at the marine protected area of Miramare and adjacent areas outside the reserve (northern Adriatic sea). Our purpose was to: (1) detect possible differences between ‘protected vs fished’ breakwaters; and (2) compare two visual-census techniques for fish assessment (i.e. strip transects vs stationary points). The fish assemblages observed between protected and fished breakwaters during all four sampling periods were statistically different. More fish taxa were found at the protected than fished breakwaters, while there was no difference in total fish density. Most fish species targeted by fisheries had a greater density (e.g. Sciaena umbra, Dicentrarchus labrax, Sparus aurata, Diplodus vulgaris, Diplodus sargus and Diplodus puntazzo) and/or size (e.g. S. aurata and D. annularis) at the protected than fished breakwaters. There was a significant difference in fish assemblages due to assessment method. In general, the number of taxa was greater when assessed by strip transects than stationary points. Total fish density was almost unaffected by the method used, while total density of demersal fish (i.e. excluding schooling species) tended to be greater when evaluated by strip transects, although the difference was statistically significant only in one sampling period out of four. These results indicate that protection from fishing may have the potential to influence fish assemblages associated with breakwaters. Additionally, caution should be used when comparing fish assemblage data collected by different visual assessment techniques.

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Tamoykin, I. Yu, O. N. Kuleshova, and V. S. Kuleshov. "New Data on Brown Meagre Sciaena umbra (Sciaenidae) at the Crimean Shore of the Black Sea Based on Visual Underwater Observations Using Breath-Hold Diving." Inland Water Biology 14, no. 2 (March 2021): 215–21. http://dx.doi.org/10.1134/s1995082921020152.

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Özgül, A., A. Lök, A. Ulaş, F. O. Düzbastılar, T. T. Tanrıkul, and C. Pelister. "Preliminary study on the use of the Vemco Positioning System to determine fish movements in artificial reef areas: a case study on Sciaena umbra Linnaeus, 1758." Journal of Applied Ichthyology 31 (December 2015): 41–47. http://dx.doi.org/10.1111/jai.12922.

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Bartoli, Pierre, David I. Gibson, and Rodney A. Bray. "Redescription of Pleorchis polyorchis (Stossich, 1889) (Digenea: Acanthocolpidae), a rare and poorly known parasite of the intestine of Sciaena umbra L. (Perciformes: Sciaenidae) from the western Mediterranean Sea." Systematic Parasitology 58, no. 2 (June 2004): 81–90. http://dx.doi.org/10.1023/b:sypa.0000029425.91299.08.

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Yücel, Şennan, Birol Baki, Fatma Demir, and Muhiddin Kasa. "Sinop’ta 2012-2013 Avcılık Sezonunda Satışa Sunulan Balık Türlerinin Fiyat Yönünden İncelenmesi." Turkish Journal of Agriculture - Food Science and Technology 5, no. 11 (October 30, 2017): 1290. http://dx.doi.org/10.24925/turjaf.v5i11.1290-1294.1297.

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The aim of the study was to determine the monthly price distribution of the offered fish species for sale within the scope of information received from the centers engaged in the sale of retail fish during 2012-2013 fishing season in Sinop, Turkey. The enterprises were grouped as I (the most), II (middle) and III (the least) according to the sales volume and fish species. Each group was represented by two different fish enterprise and so a total of six separate enterprises were determined by purpose sampling method. During the study, sale prices and fish species were obtained twice every month at the same time of day. It was determined that anchovy (Engraulis encrasicolus ponticus), horse mackerel (Trachurus trachurus), bluefish (Pomatomus saltatrix), atlantic bonito (Sarda sarda), twait shad (Alosa fallax nilotica), needlefish (Belone belone), mullet (Mugil cephalus), shi drum (Umbrina cirrosa), brown meagre (Sciana umbra), common two-banded seabream (Diplodus vulgaris), annular bream (Diplodus annularis), tub gurnard (Trigla lucerna), picarel (Maena smaris), turbot (Psetta maxima), red mullet (Mullus barbatus), whiting (Merlangus merlangus), scorpion fish (Scorpaena porcus), goby (Gobius niger) were offered for sale in fish markets. While the prices of higher economic valued fish species like anchovy, bluefish, atlantic bonito and turbot prices were different between the enterprises, the prices of horse mackerel, red mullet and whiting species were not different. When considering the fish prices based on years, the prices of horse mackerel, bluefish, atlantic bonito, red mullet and haddock during 2012-2013 years were close to the average price of 2008-2012 years and the prices of anchovy and turbot during 2012-2013 years were higher than the average price of 2008-2012 years in Sinop.

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Grau, Amàlia, Marta Linde, and Antoni Mª Grau. "Biología reproductiva de la especie vulnerable Sciaena umbra Linnaeus, 1758 (Pisces: Sciaenidae)." Scientia Marina 73, no. 1 (December 11, 2008). http://dx.doi.org/10.3989/scimar.2009.73n1067.

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Cengiz, Özgür, Bayram Kızılkaya, and Şükrü Şenol Paruğ. "Ege Denizi İçin Eşkina Balığı’nın (Sciaena umbra Linnaeus, 1758) Maksimum Boy Kaydı." Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi, August 31, 2019. http://dx.doi.org/10.18016/ksutarimdoga.vi.515704.

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AYDIN, Mehmet, and Elizabeth Grace Tunka BENGİL. "Güney Karadeniz'den Sciaena umbra Linnaeus, 1758 türünün Beslenme Alışkanlığı ve Boy-Ağırlık İlişkisi." Acta Aquatica Turcica, July 2, 2020. http://dx.doi.org/10.22392/actaquatr.714094.

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35

Garcia, J., V. Pasqualini, L. Vanalderweireldt, P. A. Bisgambiglia, M. Marengo, P. Lejeune, A. Aiello, and E. D. H. Durieux. "Global patterns and environmental drivers of suitable habitat for Dentex dentex and Sciaena umbra along the Corsican coast." ICES Journal of Marine Science, October 18, 2022. http://dx.doi.org/10.1093/icesjms/fsac184.

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Abstract Improving the effectiveness of marine spatial management is crucial to preserve marine ecosystems and also to support the fisheries economy. In this study, we aimed to determine the spatial distribution and suitable habitats (spawning and nursery sites) of Sciaena umbra and Dentex dentex using catches data in Corsica Island. Random forest models have been used as they are highly accurate and are suited to predict rare species distribution. Predictive maps of spatial distribution based on presence/absence data showed a high degree of spatial variability between species. Suitable habitats were close to shore in shallow waters for S. umbra and deeper and further offshore for D. dentex. We also observed that spawning sites were mainly located on the west coast, while nursery areas were distributed all around the island for D. dentex. In addition, we demonstrated the important contribution of environmental factors and local habitats (depth and Posidonia oceanica meadows) in the selection of their suitable habitats. Our results provide new knowledge for understanding ecological processes such as the selection of suitable habitats by fish species. Based on this information, spatial mapping can be implemented to improve the effectiveness of resource management over the long term.

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Brazo, A., R. Marques, M. Zimmermann, E. Aspillaga, B. Hereu, G. Saragoni, A. Mercière, et al. "Seasonal influence on the bathymetric distribution of an endangered fish within a marine protected area." Scientific Reports 11, no. 1 (June 25, 2021). http://dx.doi.org/10.1038/s41598-021-92633-x.

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AbstractThe spatio-temporal variability of fish distribution is important to better manage and protect the populations of endangered species. In this sense, the vertical movements of a vulnerable and protected species, Sciaena umbra, were assessed in a marine protected area (the Réserve Naturelle Marine de Cerbère-Banyuls, south of France) to study the variability of their bathymetric distribution at different time scales. Twenty adults were marked with acoustic transmitters and acoustically monitored over 2.5 years. This revealed that some individuals remained at shallow waters (< 8 m) all year round, while others presented vertical segregation at deeper waters during the cold months (mean depth of 22.5 ± 0.04 m) and all aggregated in shallow waters during the warm months. The brown meagre was more active during the night, except in June and July when peaks of activity were observed at dusk. These patterns are likely associated with foraging and reproductive behavior during the cold and warm periods, respectively, and likely regulated by water temperature and the depth of the thermocline. Here, we provide valuable information on when and where in the water column critical periods of S. umbra life cycle are expected to occur, which should be considered in management and protection plans.

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Guven, Neslihan, and Ercan Soydan. "Characterization of Glutathione S‐Transferase Enzyme from Brown meagre ( Sciaena umbra ) and Inhibitory Effects of Heavy Metals." Biotechnology and Applied Biochemistry, December 25, 2020. http://dx.doi.org/10.1002/bab.2090.

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AKSOY, LAÇINE, MESTURİYE YAYLALI, and MUKHRİDDİN SUYUNDIKOV. "Does Sciaena umbra (Linnaeus 1758) otolith protect tissues against nephropathy, oxidative stress and inflammation induced by ethylene glycol?" Anais da Academia Brasileira de Ciências 92, no. 4 (2020). http://dx.doi.org/10.1590/0001-3765202020191279.

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KOUROUPAKIS, EMMANOUIL, KRITON GRIGORAKIS, SOFIA VARDALI, VASSILIKI ILIA, IOANNIS BATJAKAS, and IOANNIS (YANNIS) KOTZAMANIS. "Evaluation of the fillet quality of wild-caught white sea bream (Diplodus sargus L.) and brown meagre (Sciaena umbra L.) captured from the Aegean Sea." Mediterranean Marine Science 20, no. 2 (May 20, 2019). http://dx.doi.org/10.12681/mms.18878.

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White sea bream (Diplodus sargus) and brown meagre (Sciaena umbra) were caught from the wild in Aegean Sea (Greece), and studied for their proximate, fatty acid and amino acid composition to evaluate their nutritional value for human consumption and their potential as candidate fish species for Mediterranean aquaculture diversification. Both species exhibited very low muscle fat, ranging at 1%. White sea bream was found to have higher muscle eicosapentaenoic (EPA) and docohexaenoic (DHA) contents and total n-3 fatty acids than brown meagre. A superiority of white sea bream in aspects of thrombogenicity was indicated, showing higher atherogenic (0.679) and thrombogenic indices (0.377) comparing to the respective values for brown meagre (0.610 and 0.579). The two-studied species exhibited high-quality protein as food source, with white sea bream showing a higher essential to non-essential amino acid (EAA/NEAA) rate, 0.764 vs 0.704, respectively. The individual to total essential amino acids rates of lysine and leucine were the highest ones for both studied species, while no significant differences were observed among them.

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Ducos, Salomé, Jessica Garcia, Johann Mourier, Antoine Aiello, and Eric D. H. Durieux. "Let them go free: Spatial behaviour following the experimental release of hatchery-reared juveniles Sciaena umbra and Dentex dentex." Marine Environmental Research, August 2022, 105712. http://dx.doi.org/10.1016/j.marenvres.2022.105712.

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Millot, Rémi, Mikaël Demolliens, Salomé Ducos, Sally Pugliese, Lucie Vanalderweireldt, Alban Delmas, Alizée Boussard, Antoine Aiello, and Eric D. H. Durieux. "Embryonic and larval development of Corsican brown meagre, Sciaena umbra (Linnaeus 1758), rearing in captivity from the Mediterranean Sea." Aquaculture International, September 13, 2022. http://dx.doi.org/10.1007/s10499-022-00968-7.

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42

BODUR, Barış, Mehmet AYDIN, and Uğur KARADURMUŞ. "Population Structure, Exploitation Status, and Prospects of Brown Meagre Sciaena umbra Linnaeus, 1758 From the Turkish Coast of the Black Sea." Marine Science and Technology Bulletin, November 16, 2022. http://dx.doi.org/10.33714/masteb.1178161.

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The brown meagre Sciaena umbra Linnaeus, 1758 population has experienced dramatic population declines, and it was regionally assessed as Near Threatened in the Mediterranean. In this study, the current status of brown meagre populations in the Black Sea was evaluated by estimating growth and mortality rates based on age readings from the otolith. All specimens were collected by commercial trammel nets between March 2019 and February 2020 in the Turkish coast of the Black Sea. A total of 324 brown meagre were sampled during the study period, ranging in age from 0 to 26. The peak spawning season of the species was from June to July. The Von Bertalanffy growth parameters of (L∞ = 54.15, k = 0.14 yr-1, t0 = -3.11) supports previous studies and suggests that brown meagre is a long-lived and slow-growing species. The exploitation ratio of 0.53 for females and 0.47 for males. Life-history features and mortalities indicate that the brown meagre has relatively high fertility but may be undefended to intense fishing pressure. However, the impact of overfishing, pollution and climate change can have increasingly detrimental effects on the overall population size of this population.

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Terlizzi, Antonio, Giulio Tarantino, and Valerio Sbragaglia. "Ecological, Social and Economic Aspects of Italian Marine Spearfishing Tournaments (2009-2020)." Frontiers in Marine Science 9 (July 13, 2022). http://dx.doi.org/10.3389/fmars.2022.891246.

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Marine recreational spearfishing is practiced by a small proportion of recreational fishers and ecological, social and economic aspects of such activities are poorly understood with respect to recreational angling. The Italian Federation of Sport Fishing and Underwater Activities (FIPSAS) started in 2009 the collection of catch data related to Italian spearfishing tournaments. Here, we provide the first snapshot of this catch data regarding 48 tournaments organized in 29 different Italian localities from 2009 to 2020. We also developed a survey to collect social and economic information that has been administrated to participants to the tournaments. We retrieved 8843 specimens caught by spearfishers, which accounted for 33 species and a total biomass of 5665 kg (mean individual mass ± standard error; 0.64 ± 0.01 kg). The five most frequently species represented 78% of the specimens caught (white seabream, Diplodus sargus 48%; brown wrasse, Labrus merula 12%; brown meagre, Sciaena umbra 9%, green wrasse, Labrus viridis 5%; salema, Sarpa salpa 4%). The overall catch per unit effort for all the tournaments was 0.47 ± 0.01 kg/spearfisher/h, and we showed interesting effects of type of tournaments and type of displacement on it. We also assessed the accuracy of participants to catch fish in accordance to tournaments-specific minimum weight limits. The five most caught species showed that spearfishers committed errors around 50 g below the weight limit. The survey showed that spearfishers participating to tournaments are trophy-fish oriented (i.e., they would rather catch one or two big fish than ten smaller fish), but not particularly catch oriented (i.e., they are just as happy if they do not shoot the fish they see and a fishing trip can be successful even if no fish are caught). Regarding the motives for fishing, they fish for experiencing adventure, excitement and new and different things as well as to be underwater. Participants spent from 2 to 26 days in the tournament locations (median equal to 7 days), which implies a total expenditure to solely participate to the tournaments ranging from 800 to 3500 Euros (mean ± standard deviation; 1800 ± 591 euros). This study represents the first ecological, social and economic baseline knowledge for an integrative management of contemporary spearfishing tournaments.

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