N. VALCÁRCEL-PÉREZ, E. Ramirez-Romero, Carlos M. García, J. I. González-Gordillo, F. Echevarría
The Strait of Gibraltar (SG) is the only connection of the Mediterranean Sea with the global circulation. The SG is an outstanding marine region to explore physical-biological coupling of pelagic communities due to its hydrodynamic complexity, including strong tidal forcing and marked spatial gradients and fronts. The authors have unravelled the role of the fortnightly tidal scale (spring and neap tides) and local processes (upwelling and tidal-topographic mixing) that shape planktonic assemblages in the Strait. To do so, an oceanographic cruise was taken in early autumn 2008 with a high-resolution grid sampling and spring/neap tidal conditions. The planktonic features were captured using different automatic and semi-automatic techniques of plankton analyses (flow cytometry, FlowCAM, LOPC and Ecotaxa) that allowed covering a wide range of sizes of the community from pico- to mesoplankton. The SG was sectorized into two clusters based on the biogeochemical and main water column properties. Cluster 1 (CL1) covered shallow productive areas around Cape Trafalgar (CT). CL1 presented higher concentrations of chlorophyll and nutrients, and phytoplankton was mostly represented by Synechococcus and coastal diatoms while zooplankton had the highest percentage of meroplankton (31%). In contrast, cluster 2 (CL2) covered open ocean waters and presented more oligotrophic features, i.e. nitrogen-depleted waters with lower chlorophyll concentrations and a picoplankton community dominated by Prochlorococcus and holoplankton predominance in mesozooplankton. Under early autumn conditions with overall nutrient-depleted and stratified waters, the CT area emerges as an ecosystem where the constant tidal mixing and nutrients supply is coupled with an active production also being favored by high residence times and finally shaping a plankton community with unique features in the area.
{"title":"Variability of early autumn planktonic assemblages in the strait of Gibraltar: a regionalization analysis","authors":"N. VALCÁRCEL-PÉREZ, E. Ramirez-Romero, Carlos M. García, J. I. González-Gordillo, F. Echevarría","doi":"10.12681/mms.27623","DOIUrl":"https://doi.org/10.12681/mms.27623","url":null,"abstract":"The Strait of Gibraltar (SG) is the only connection of the Mediterranean Sea with the global circulation. The SG is an outstanding marine region to explore physical-biological coupling of pelagic communities due to its hydrodynamic complexity, including strong tidal forcing and marked spatial gradients and fronts. The authors have unravelled the role of the fortnightly tidal scale (spring and neap tides) and local processes (upwelling and tidal-topographic mixing) that shape planktonic assemblages in the Strait. To do so, an oceanographic cruise was taken in early autumn 2008 with a high-resolution grid sampling and spring/neap tidal conditions. The planktonic features were captured using different automatic and semi-automatic techniques of plankton analyses (flow cytometry, FlowCAM, LOPC and Ecotaxa) that allowed covering a wide range of sizes of the community from pico- to mesoplankton. The SG was sectorized into two clusters based on the biogeochemical and main water column properties. Cluster 1 (CL1) covered shallow productive areas around Cape Trafalgar (CT). CL1 presented higher concentrations of chlorophyll and nutrients, and phytoplankton was mostly represented by Synechococcus and coastal diatoms while zooplankton had the highest percentage of meroplankton (31%). In contrast, cluster 2 (CL2) covered open ocean waters and presented more oligotrophic features, i.e. nitrogen-depleted waters with lower chlorophyll concentrations and a picoplankton community dominated by Prochlorococcus and holoplankton predominance in mesozooplankton. Under early autumn conditions with overall nutrient-depleted and stratified waters, the CT area emerges as an ecosystem where the constant tidal mixing and nutrients supply is coupled with an active production also being favored by high residence times and finally shaping a plankton community with unique features in the area.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43762993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rakia AYARI-KLITI, A. Bakalem, Abir Fersi, A. Afli, J. Dauvin
The last inventory of Tunisian polychaetes diversity by Ayari et al. (2009) is updated. New records were acquired from the literature and from the current study concerning species collected in the tidal channels of the Gulf of Gabès (2016-2017) and the re-examination of some species deposited in the collection of the Tunisian National Institute of Marine Sciences and Technologies. This inventory, reviewing the taxonomy, nomenclature, and biogeographic distribution of the Tunisian polychaetes, includes 390 species belonging to 52 families, among which the Serpulidae (41 species) and Syllidae (36 species) are the most diverse. In total, 37 species previously reported are currently removed from the Tunisian polychaetes list. An additional 121 new species are added, including 23 species collected in the tidal channels and 6 species in the reference collection previously misidentified as their congeners. Morphological differences between the latter are briefly discussed and figured. Among these species, Laonice bahusiensis, Laonice norgensis, and Scolelepis neglecta are extending their Mediterranean distribution, while Sternaspis thalassemoides and Caulleriella mediterranea are probably reported for the first time after their original description. In addition, this current inventory allows us to discuss the establishment status of 17 Non-Indigenous polychaete species (14 established, 1 casual, and 2 cryptogenic) found in Tunisian waters.
{"title":"Polychaete diversity in Tunisian waters as of 2021: an update with special emphasis on Non-Indigenous species","authors":"Rakia AYARI-KLITI, A. Bakalem, Abir Fersi, A. Afli, J. Dauvin","doi":"10.12681/mms.27798","DOIUrl":"https://doi.org/10.12681/mms.27798","url":null,"abstract":"The last inventory of Tunisian polychaetes diversity by Ayari et al. (2009) is updated. New records were acquired from the literature and from the current study concerning species collected in the tidal channels of the Gulf of Gabès (2016-2017) and the re-examination of some species deposited in the collection of the Tunisian National Institute of Marine Sciences and Technologies. This inventory, reviewing the taxonomy, nomenclature, and biogeographic distribution of the Tunisian polychaetes, includes 390 species belonging to 52 families, among which the Serpulidae (41 species) and Syllidae (36 species) are the most diverse. In total, 37 species previously reported are currently removed from the Tunisian polychaetes list. An additional 121 new species are added, including 23 species collected in the tidal channels and 6 species in the reference collection previously misidentified as their congeners. Morphological differences between the latter are briefly discussed and figured. Among these species, Laonice bahusiensis, Laonice norgensis, and Scolelepis neglecta are extending their Mediterranean distribution, while Sternaspis thalassemoides and Caulleriella mediterranea are probably reported for the first time after their original description. In addition, this current inventory allows us to discuss the establishment status of 17 Non-Indigenous polychaete species (14 established, 1 casual, and 2 cryptogenic) found in Tunisian waters.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44152142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper discusses the first record of the sammara squirrelfish, Neoniphon sammara in the Egyptian Mediterranean waters. On April 2020, 17 specimens of this species were recorded in the miscellaneous catch at the Mersa Matruh landing site on the Mediterranean Sea (31.33333° Ν, 27.216665° E), Egypt. The collected specimens represent the first record of N. sammara in the Egyptian Mediterranean waters. These specimens have a total length of 15.3 to 21.5 cm, fork length of 13.3 to 18.7 cm, standard length of 12.4 to 17.2 cm, and total weight of 45.3 to 125.1 g. The specimens’ morphometric measurements and meristic counts are described. These new findings increase the number of Lessepsian species from the Egyptian Mediterranean waters to 44 species.
{"title":"First record of the Lessepsian Sammara Squirrelfish, Neoniphon sammara (Forsskål, 1775), in the Egyptian Mediterranean waters","authors":"S. Mehanna, Y. A. Osman","doi":"10.12681/mms.28204","DOIUrl":"https://doi.org/10.12681/mms.28204","url":null,"abstract":"This paper discusses the first record of the sammara squirrelfish, Neoniphon sammara in the Egyptian Mediterranean waters. On April 2020, 17 specimens of this species were recorded in the miscellaneous catch at the Mersa Matruh landing site on the Mediterranean Sea (31.33333° Ν, 27.216665° E), Egypt. The collected specimens represent the first record of N. sammara in the Egyptian Mediterranean waters. These specimens have a total length of 15.3 to 21.5 cm, fork length of 13.3 to 18.7 cm, standard length of 12.4 to 17.2 cm, and total weight of 45.3 to 125.1 g. The specimens’ morphometric measurements and meristic counts are described. These new findings increase the number of Lessepsian species from the Egyptian Mediterranean waters to 44 species.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44084246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this study, temporal and spatial trends of sea surface temperature (SST), wind speed, air temperature, sea surface salinity (SSS), sea-level pressure (SLP), and SST-based upwelling index are examined and compared with data from previous studies. Analyses of these parameters are performed for five critical locations that best illustrate the characteristic meteorological and oceanographic structures of the Aegean Sea. Upwelling index calculations are conducted with respect to latitude in order to reveal variations and detect upwelling strength easily. Long-term variations of all parameters are investigated using long-term ECMWF ERA-Interim data covering the period from 1979 to 2018; moreover, the Copernicus Marine Environment Monitoring Service (Global SSS/SSD L4) is used to obtain SSS data that cover the period of 2000-2015. Linear trend and Mann-Kendall tests are applied to identify tendencies and long-term variability. Monthly-average SST and air temperature data exhibit rising trends over the past 40 years. The results also reveal a decreasing trend in wind speed and SLP over the Aegean Sea. It is hard to determine, however, whether the current warming trend is a natural reaction of Earth or not.
{"title":"Long-Term Variations of Air Temperature, SST, Surface Atmospheric Pressure, Surface Salinity and Wind Speed in the Aegean Sea","authors":"Emre Tukenmez, H. Altiok","doi":"10.12681/mms.25770","DOIUrl":"https://doi.org/10.12681/mms.25770","url":null,"abstract":"In this study, temporal and spatial trends of sea surface temperature (SST), wind speed, air temperature, sea surface salinity (SSS), sea-level pressure (SLP), and SST-based upwelling index are examined and compared with data from previous studies. Analyses of these parameters are performed for five critical locations that best illustrate the characteristic meteorological and oceanographic structures of the Aegean Sea. Upwelling index calculations are conducted with respect to latitude in order to reveal variations and detect upwelling strength easily. Long-term variations of all parameters are investigated using long-term ECMWF ERA-Interim data covering the period from 1979 to 2018; moreover, the Copernicus Marine Environment Monitoring Service (Global SSS/SSD L4) is used to obtain SSS data that cover the period of 2000-2015. Linear trend and Mann-Kendall tests are applied to identify tendencies and long-term variability. Monthly-average SST and air temperature data exhibit rising trends over the past 40 years. The results also reveal a decreasing trend in wind speed and SLP over the Aegean Sea. It is hard to determine, however, whether the current warming trend is a natural reaction of Earth or not.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45476955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Khamassi, Wafa Rjiba Bahri, A. Mnari Bhouri, Amani Chaffai, Emna Soufi kechaou, R. Ghanem, J. Ben Souissi
The Atlantic crab Callinectes sapidus was recently recorded in Tunisia and presents an invasive behavior. This study aims to evaluate its socio-economic impacts on small-scale fisheries and to analyze variations in chemical composition, fatty acids profile, and nutritive value according to sex and edible tissues. Socio-economic surveys via face-to-face revealed a decline in fishermen’s income from 15% to even 70% (damages on fishing nets and catches). Muscles yield of Callinectes sapidus ranged between 36.07±2.84% and 42.83±6.53% respectively for females and males. All the analyzed tissues contained high protein contents (> 23%) and particularly cephalothorax muscles reaching 27.05±0.16%. This new exotic food can be recommended in low fat diets since it contained less than 5% of total fats. The fatty acid profile was dominated by the polyunsaturated fatty acids (PUFA) for both sexes and all the analyzed tissues. Eicosapentaenoic acid, docosahexaenoic acid and arachidonic acid were the most abundant PUFA in all tissues ranging respectively from 9.31% to 15.64%, from 8.74% to 13.78% and between 6.81% and 9.21%. All the nutritional indexes of lipids indicated that this crab could be beneficial for human health. In addition, it constitutes a new marine resource with high economic opportunity.
{"title":"Biochemical composition, nutritional value and socio-economic impacts of the invasive crab Callinectes sapidus Rathbun, 1896 in central Mediterranean Sea","authors":"F. Khamassi, Wafa Rjiba Bahri, A. Mnari Bhouri, Amani Chaffai, Emna Soufi kechaou, R. Ghanem, J. Ben Souissi","doi":"10.12681/mms.28878","DOIUrl":"https://doi.org/10.12681/mms.28878","url":null,"abstract":"The Atlantic crab Callinectes sapidus was recently recorded in Tunisia and presents an invasive behavior. This study aims to evaluate its socio-economic impacts on small-scale fisheries and to analyze variations in chemical composition, fatty acids profile, and nutritive value according to sex and edible tissues. Socio-economic surveys via face-to-face revealed a decline in fishermen’s income from 15% to even 70% (damages on fishing nets and catches). Muscles yield of Callinectes sapidus ranged between 36.07±2.84% and 42.83±6.53% respectively for females and males. All the analyzed tissues contained high protein contents (> 23%) and particularly cephalothorax muscles reaching 27.05±0.16%. This new exotic food can be recommended in low fat diets since it contained less than 5% of total fats. The fatty acid profile was dominated by the polyunsaturated fatty acids (PUFA) for both sexes and all the analyzed tissues. Eicosapentaenoic acid, docosahexaenoic acid and arachidonic acid were the most abundant PUFA in all tissues ranging respectively from 9.31% to 15.64%, from 8.74% to 13.78% and between 6.81% and 9.21%. All the nutritional indexes of lipids indicated that this crab could be beneficial for human health. In addition, it constitutes a new marine resource with high economic opportunity.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46042575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Papageorgiou, Elizabeth BENGIL G.T., R. Snape, L. Hadjioannou
The tendency of world media to villainize of sharks has likely contributed to a disparity in the distribution of research and conservation resources among threatened marine megavertebrates, with elasmobranchs losing out. Increased public knowledge on elasmobranchs can shape public attitude and foster and gain support for elasmobranch conservation. Through an online survey, this study aimed to evaluate the drivers of public knowledge and examine linkages between awareness of elasmobranchs and attitude toward their conservation. To explore the relationships and effects between the different predicting variables and public elasmobranch knowledge and attitude indices, bi- and multi-variate analysis and a partial least squares path model were used. The results indicated that the average public elasmobranch knowledge of the Cypriot population was moderate and the average public attitude towards elasmobranchs was relatively low. Marine-related activities and marine-related education were highly correlated with increased public elasmobranch knowledge and were the strongest predictors of the partial least squares path model which explained a high degree of variation in elasmobranch knowledge. Public elasmobranch knowledge was highly correlated with public attitude towards elasmobranchs. The findings of this study highlighted the importance of ocean literacy and education and provide insights into the mechanisms for developing and designing successful advocacy actions for elasmobranch conservation.
{"title":"Increased knowledge affects public attitude and perception towards elasmobranchs and support for conservation","authors":"M. Papageorgiou, Elizabeth BENGIL G.T., R. Snape, L. Hadjioannou","doi":"10.12681/mms.28749","DOIUrl":"https://doi.org/10.12681/mms.28749","url":null,"abstract":"The tendency of world media to villainize of sharks has likely contributed to a disparity in the distribution of research and conservation resources among threatened marine megavertebrates, with elasmobranchs losing out. Increased public knowledge on elasmobranchs can shape public attitude and foster and gain support for elasmobranch conservation. Through an online survey, this study aimed to evaluate the drivers of public knowledge and examine linkages between awareness of elasmobranchs and attitude toward their conservation. To explore the relationships and effects between the different predicting variables and public elasmobranch knowledge and attitude indices, bi- and multi-variate analysis and a partial least squares path model were used. The results indicated that the average public elasmobranch knowledge of the Cypriot population was moderate and the average public attitude towards elasmobranchs was relatively low. Marine-related activities and marine-related education were highly correlated with increased public elasmobranch knowledge and were the strongest predictors of the partial least squares path model which explained a high degree of variation in elasmobranch knowledge. Public elasmobranch knowledge was highly correlated with public attitude towards elasmobranchs. The findings of this study highlighted the importance of ocean literacy and education and provide insights into the mechanisms for developing and designing successful advocacy actions for elasmobranch conservation.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48117501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Vasilopoulou, George Kehayias, D. Kletou, P. Kleitou, K. Antoniadis, M. Rousou, V. Papadopoulos, Polina Polykarpou, G. Tsiamis
This study provides elements on the spatial and temporal mesozooplankton variability during a three-year study, encompassing vertical hauls from 50 m deep to the surface from four coastal locations of Cyprus. The total mesozooplankton abundance fluctuated between 190.4 and 882.5 individuals m-3. A total of 90 holoplanktonic and meroplanktonic taxa were recorded. Copepods dominated in the community and accounted for 71.7% of the total mesozooplankton, followed by appendicularians, molluscs, cladocerans, and siphonophores, which contributed 8.04%, 5.48%, 4.60%, and 3.31%, respectively. There were no statistically significant differences among the four sampling sites for any of the mesozooplanktonic taxa, though seasonal and interannual differences were recorded for several of them. The community composition reinforced the evidence for a higher resemblance of the Cyprus mesozooplankton to the offshore communities of the northern and central Levantine Sea and those around Rhodes Island, instead of the northeastern Mediterranean coastal areas. Comparisons of the seasonal abundance variation of the mesozooplankton taxa with other coastal areas of the Levantine Sea are provided. Considering the seasonality of the mesozooplankton, there was a separation of the taxa into distinct groups representing the summer, the winter-spring, and the autumn periods. The temperature was the most important variable that shaped the formation of the distinct seasonal groups of taxa, while chlorophyll-α, dissolved oxygen, and salinity contributed to a lesser extent. Chlorophyll-α concentrations verified the oligotrophic character of the area and seem to be unaffected by inland inputs. The mesozooplankton community showed a spatial consistency, probably as the result of the open sea influence, and seems to be regulated mainly by the properties of the central Levantine pelagic waters and less by terrestrial inputs of inland waters.
{"title":"Spatial and temporal distribution of mesozooplankton in the coastal waters of Cyprus (Eastern Mediterranean)","authors":"G. Vasilopoulou, George Kehayias, D. Kletou, P. Kleitou, K. Antoniadis, M. Rousou, V. Papadopoulos, Polina Polykarpou, G. Tsiamis","doi":"10.12681/mms.28702","DOIUrl":"https://doi.org/10.12681/mms.28702","url":null,"abstract":"This study provides elements on the spatial and temporal mesozooplankton variability during a three-year study, encompassing vertical hauls from 50 m deep to the surface from four coastal locations of Cyprus. The total mesozooplankton abundance fluctuated between 190.4 and 882.5 individuals m-3. A total of 90 holoplanktonic and meroplanktonic taxa were recorded. Copepods dominated in the community and accounted for 71.7% of the total mesozooplankton, followed by appendicularians, molluscs, cladocerans, and siphonophores, which contributed 8.04%, 5.48%, 4.60%, and 3.31%, respectively. There were no statistically significant differences among the four sampling sites for any of the mesozooplanktonic taxa, though seasonal and interannual differences were recorded for several of them. The community composition reinforced the evidence for a higher resemblance of the Cyprus mesozooplankton to the offshore communities of the northern and central Levantine Sea and those around Rhodes Island, instead of the northeastern Mediterranean coastal areas. Comparisons of the seasonal abundance variation of the mesozooplankton taxa with other coastal areas of the Levantine Sea are provided. Considering the seasonality of the mesozooplankton, there was a separation of the taxa into distinct groups representing the summer, the winter-spring, and the autumn periods. The temperature was the most important variable that shaped the formation of the distinct seasonal groups of taxa, while chlorophyll-α, dissolved oxygen, and salinity contributed to a lesser extent. Chlorophyll-α concentrations verified the oligotrophic character of the area and seem to be unaffected by inland inputs. The mesozooplankton community showed a spatial consistency, probably as the result of the open sea influence, and seems to be regulated mainly by the properties of the central Levantine pelagic waters and less by terrestrial inputs of inland waters.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47171679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Giula Fassio, P. Russo, Giuseppe Bonomolo, A. Fedosov, Maria Vittoria Modica, Elisa Nocella, M. Oliverio
A remarkably high diversity of native small spindle-shells (Gastropoda, Fasciolariidae, Fusininae) has been recently inventoried in the Mediterranean Sea, with 23 species identified based on shell morphology. They have almost invariably been classified in the genus Fusinus, and a few of them recently moved to other genera (Aptyxis Troschel 1868, Aegeofusinus Russo, 2017 and Gracilipurpura Jousseaume, 1880), mostly based on the sole shell features. We have reconstructed a molecular phylogenetic framework for the Mediterranean Fusininae, focusing on native species representative of the genus-level taxa. Our results confirmed that Fusinus s.s. (type species Murex colus Linnaeus, 1758) should be restricted to a group of large-shelled species from the Indo-West Pacific and does not fit any of the small-shelled Mediterranean fusinines. We confirm that Murex syracusanus Linnaeus, 1758 represents a distinct lineage, and show that for all the remaining species the pattern is suggestive of a single monophyletic radiation of small Mediterranean fusinines, for which the name Pseudofusus Monterosato, 1884 must be used.
{"title":"A molecular framework for the systematics of the Mediterranean spindle-shells (Gastropoda, Neogastropoda, Fasciolariidae, Fusininae)","authors":"Giula Fassio, P. Russo, Giuseppe Bonomolo, A. Fedosov, Maria Vittoria Modica, Elisa Nocella, M. Oliverio","doi":"10.12681/mms.29935","DOIUrl":"https://doi.org/10.12681/mms.29935","url":null,"abstract":"A remarkably high diversity of native small spindle-shells (Gastropoda, Fasciolariidae, Fusininae) has been recently inventoried in the Mediterranean Sea, with 23 species identified based on shell morphology. They have almost invariably been classified in the genus Fusinus, and a few of them recently moved to other genera (Aptyxis Troschel 1868, Aegeofusinus Russo, 2017 and Gracilipurpura Jousseaume, 1880), mostly based on the sole shell features. We have reconstructed a molecular phylogenetic framework for the Mediterranean Fusininae, focusing on native species representative of the genus-level taxa. Our results confirmed that Fusinus s.s. (type species Murex colus Linnaeus, 1758) should be restricted to a group of large-shelled species from the Indo-West Pacific and does not fit any of the small-shelled Mediterranean fusinines. We confirm that Murex syracusanus Linnaeus, 1758 represents a distinct lineage, and show that for all the remaining species the pattern is suggestive of a single monophyletic radiation of small Mediterranean fusinines, for which the name Pseudofusus Monterosato, 1884 must be used.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41982447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The present study reports the first occurrence of an alien glycerid polychaete worm, Glycera cinnamomea (Polychaeta: Glyceridae) in the Mediterranean Sea. Only one specimen of this species was collected on April 2021 on the shallow‒water sandy mud substratum (9m depth) in the western part of Mersin Bay, near Taşucu Turkey(in the Eastern Mediterranean Sea). This species is mainly characterized by having non–retractile branchiae with maximally five rami, emerging on the posterior side of the parapodia, and three types of proboscidial papillae. It is previously known from the Indo–Pacific areas and the Red Sea (Suez Bay). The species had been most probably introduced to the Mediterranean Sea via the Suez Canal (Lessepsian species) and have been unnoticed in the Levantine Sea so far. However, as the sampling area has one large international harbor (MersinHarbor), its introduction to the Mediterranean Sea via shipping cannot be ruled out. The morphological, ecological, and distributional features of this species are presented and discussed.
{"title":"A new alien polychaete species for the Mediterranean Sea: Glycera cinnamomea (Annelida: Glyceridae)","authors":"E. Dağlı, M. Çınar","doi":"10.12681/mms.29867","DOIUrl":"https://doi.org/10.12681/mms.29867","url":null,"abstract":"The present study reports the first occurrence of an alien glycerid polychaete worm, Glycera cinnamomea (Polychaeta: Glyceridae) in the Mediterranean Sea. Only one specimen of this species was collected on April 2021 on the shallow‒water sandy mud substratum (9m depth) in the western part of Mersin Bay, near Taşucu Turkey(in the Eastern Mediterranean Sea). This species is mainly characterized by having non–retractile branchiae with maximally five rami, emerging on the posterior side of the parapodia, and three types of proboscidial papillae. It is previously known from the Indo–Pacific areas and the Red Sea (Suez Bay). The species had been most probably introduced to the Mediterranean Sea via the Suez Canal (Lessepsian species) and have been unnoticed in the Levantine Sea so far. However, as the sampling area has one large international harbor (MersinHarbor), its introduction to the Mediterranean Sea via shipping cannot be ruled out. The morphological, ecological, and distributional features of this species are presented and discussed.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44418011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A 74-year zoogeographic and faunistic description of the shelf soft substrate peracaridan Tanaidacea along the Israeli coast, the eastern-most part of the Mediterranean, is provided here. The presence of three apseudomorphan and ten tanaidomorphanfamilies, with 28 species, is recorded, of which four are reported from the region for the first time, and five are new species in the genera Araphura, Nippognathiopsis, Paratyphlotanais, and Typhlotanais. In addition, a new genus is established for Akanthophoreus nanopsenos, Leptochelia tanykeraia is redescribed, and the presence of Chondrochelia savignyi is demonstrated. The tanaid shelf community essentially belongs to the Mediterranean zoogeographic province but has several Mediterranean-Atlantic species. Lessepsian (Erythrean) migration is currently indicated by the presence of one species, the Indo-Pacific kalliapseudid Cristapseudes omercooperi, which has established a population in the studied area. Its settlement strategy is demonstrated and discussed. The poor Indo-Pacific representation is possibly due to the lack of planktonic larvae in this peracarid group, reducing the chance of dispersion or transport from the Indo-Pacific realm via the Suez Canal.
{"title":"Tanaidacea (Crustacea: Malacostraca: Peracarida) from soft-sediment shelf habitats off the Mediterranean coast of Israel (Levant Sea) –taxonomy, faunistics and ecological aspects","authors":"H. Lubinevsky, M. Tom, G. Bird","doi":"10.12681/mms.27699","DOIUrl":"https://doi.org/10.12681/mms.27699","url":null,"abstract":"A 74-year zoogeographic and faunistic description of the shelf soft substrate peracaridan Tanaidacea along the Israeli coast, the eastern-most part of the Mediterranean, is provided here. The presence of three apseudomorphan and ten tanaidomorphanfamilies, with 28 species, is recorded, of which four are reported from the region for the first time, and five are new species in the genera Araphura, Nippognathiopsis, Paratyphlotanais, and Typhlotanais. In addition, a new genus is established for Akanthophoreus nanopsenos, Leptochelia tanykeraia is redescribed, and the presence of Chondrochelia savignyi is demonstrated. The tanaid shelf community essentially belongs to the Mediterranean zoogeographic province but has several Mediterranean-Atlantic species. Lessepsian (Erythrean) migration is currently indicated by the presence of one species, the Indo-Pacific kalliapseudid Cristapseudes omercooperi, which has established a population in the studied area. Its settlement strategy is demonstrated and discussed. The poor Indo-Pacific representation is possibly due to the lack of planktonic larvae in this peracarid group, reducing the chance of dispersion or transport from the Indo-Pacific realm via the Suez Canal.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49002480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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