Ana Fortič, Reem AL-SHEIKH RASHEED, Z. Almajid, Ali H. Badreddine, J. Báez, Angel BELMONTE-GALLEGOS, N. Bettoso, D. Borme, F. Camisa, Daniela Caracciolo, M. Çınar, F. Crocetta, Ilija Ćetković, A. Doğan, M. Galiya, Álvaro GARCÍA DE LOS RÍOS Y LOS HUERTOS, D. Grech, J. Guallart, Gizem Gündeğer, A. Kahrić, P. Karachle, D. Kulijer, A. Lombarte, O. Marković, Elsa MARTÍNEZ JIMÉNEZ, Emine SUKRAN OKUDAN, M. Orlando-Bonaca, S. Sartoretto, A. Spinelli, İnci Tuney Kizilkaya, R. Virgili
This Collective article reports 17 introduced species and 22 new locations for these species in the Mediterranean Sea. The reports are from three different Marine Strategy Framework Directive (MSFD) subregions (Aegean-Levantine Sea, Adriatic Sea and Western Mediterranean Sea) and the Sea of Marmara and cover ten different countries. The goal of consistent and detailed reporting of introduced species is to complement the existing species inventories and serve as a basis for establishing monitoring strategies and other conservation measures. Some of the reports from this article are the first species records for the Mediterranean Sea, namely the green alga Udotea flabellum from the Aegean Sea (Turkey) and the deepbody boarfish Antigonia capros from the Balearic Sea (Spain). In addition, new records of introduced species are included for different seas, namely the moon crab Matuta victor for the Aegean Sea (Greece), the whale shark Rhincodon typus and the lionfish Pterois miles for the Alboran Sea (Spain), the almaco jack Seriola rivoliana for the Tyrrhenian Sea (Italy), and the hound needlefish Tylosurus crocodilus for the Adriatic Sea (Italy). Furthermore, reports on first country records are included: the red alga Colaconema codicola from Slovenia, the nudibranch Melibe viridis from Bosnia and Herzegovina, the lionfish Pterois miles from Montenegro, and the goldstripe sardinella Sardinella gibbosa from Syria, which also represents a second record for the Mediterranean Sea. Furthermore, the occurrence of the scleractinian coral Oculina patagonica was noted in Gulf of Lion (France). Four polychaete species, namely Leodice antennata, Timarete punctata and Branchiomma bairdi, are reported from the vermetid reef habitat and two of them (L. antennata and B. bairdi) are also recorded for the first time in Lebanon. Evidence for established populations of the Asian date mussel Arcuatula senhousia in the Sea of Marmara (Turkey) and the rayed pearl oyster Pinctada radiata around the island of Sardinia (Italy) is provided.
{"title":"New records of introduced species in the Mediterranean Sea (April 2023)","authors":"Ana Fortič, Reem AL-SHEIKH RASHEED, Z. Almajid, Ali H. Badreddine, J. Báez, Angel BELMONTE-GALLEGOS, N. Bettoso, D. Borme, F. Camisa, Daniela Caracciolo, M. Çınar, F. Crocetta, Ilija Ćetković, A. Doğan, M. Galiya, Álvaro GARCÍA DE LOS RÍOS Y LOS HUERTOS, D. Grech, J. Guallart, Gizem Gündeğer, A. Kahrić, P. Karachle, D. Kulijer, A. Lombarte, O. Marković, Elsa MARTÍNEZ JIMÉNEZ, Emine SUKRAN OKUDAN, M. Orlando-Bonaca, S. Sartoretto, A. Spinelli, İnci Tuney Kizilkaya, R. Virgili","doi":"10.12681/mms.34016","DOIUrl":"https://doi.org/10.12681/mms.34016","url":null,"abstract":"This Collective article reports 17 introduced species and 22 new locations for these species in the Mediterranean Sea. The reports are from three different Marine Strategy Framework Directive (MSFD) subregions (Aegean-Levantine Sea, Adriatic Sea and Western Mediterranean Sea) and the Sea of Marmara and cover ten different countries. The goal of consistent and detailed reporting of introduced species is to complement the existing species inventories and serve as a basis for establishing monitoring strategies and other conservation measures. Some of the reports from this article are the first species records for the Mediterranean Sea, namely the green alga Udotea flabellum from the Aegean Sea (Turkey) and the deepbody boarfish Antigonia capros from the Balearic Sea (Spain). In addition, new records of introduced species are included for different seas, namely the moon crab Matuta victor for the Aegean Sea (Greece), the whale shark Rhincodon typus and the lionfish Pterois miles for the Alboran Sea (Spain), the almaco jack Seriola rivoliana for the Tyrrhenian Sea (Italy), and the hound needlefish Tylosurus crocodilus for the Adriatic Sea (Italy). Furthermore, reports on first country records are included: the red alga Colaconema codicola from Slovenia, the nudibranch Melibe viridis from Bosnia and Herzegovina, the lionfish Pterois miles from Montenegro, and the goldstripe sardinella Sardinella gibbosa from Syria, which also represents a second record for the Mediterranean Sea. Furthermore, the occurrence of the scleractinian coral Oculina patagonica was noted in Gulf of Lion (France). Four polychaete species, namely Leodice antennata, Timarete punctata and Branchiomma bairdi, are reported from the vermetid reef habitat and two of them (L. antennata and B. bairdi) are also recorded for the first time in Lebanon. Evidence for established populations of the Asian date mussel Arcuatula senhousia in the Sea of Marmara (Turkey) and the rayed pearl oyster Pinctada radiata around the island of Sardinia (Italy) is provided.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49177453","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}
Polyxeni Kourkoutmani, Katerina Loufi, Georgia Kalantaridou, A. Karagianni, E. Michaloudi
Non-indigenous species (NIS) are one of the anthropogenic effects greatly threatening biodiversity and ecosystem services. Ports and harbours are among the most susceptible environments for the arrival and establishment of these species since ballast waters represent a common pathway for NIS arrivals. However, relevant studies are limited. One of the few studies dealing with the zooplankton community of a harbour and reveals the presence of the widely distributed NIS Oithona davisae is presented in this paper, with special mention to the spatiotemporal variation of the species. The invader, O. davisae, a significant contributor to the zooplankton community, confirmed its thermophilic character and showed better development in the inner part of the harbour as well as patterns of coexistence with competing native species.
{"title":"Spatio-temporal variation of the invasive copepod Oithona davisae in the zooplankton community of Kavala harbour","authors":"Polyxeni Kourkoutmani, Katerina Loufi, Georgia Kalantaridou, A. Karagianni, E. Michaloudi","doi":"10.12681/mms.32127","DOIUrl":"https://doi.org/10.12681/mms.32127","url":null,"abstract":"Non-indigenous species (NIS) are one of the anthropogenic effects greatly threatening biodiversity and ecosystem services. Ports and harbours are among the most susceptible environments for the arrival and establishment of these species since ballast waters represent a common pathway for NIS arrivals. However, relevant studies are limited. One of the few studies dealing with the zooplankton community of a harbour and reveals the presence of the widely distributed NIS Oithona davisae is presented in this paper, with special mention to the spatiotemporal variation of the species. The invader, O. davisae, a significant contributor to the zooplankton community, confirmed its thermophilic character and showed better development in the inner part of the harbour as well as patterns of coexistence with competing native species.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44273575","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 the present study, we investigated the effects of pollution and anthropization on the summer distribution of phyto-zooplanktoncommunities in relation to environmental factors in the coastal zone of DjerbaIsland. On the basis of chemical factors, theDjerba coasts can be divided into two parts: the Western Area (WA), characterized by high values of nitrogen forms of nutrients,with higher N/P ratio, and the Eastern Area (EA), poorer in inorganic nitrogen with an N/P ratio lower than the Redfield ratio (16).Strong differences in terms of plankton communities were also observed between these two areas. Bacillariophyceae was the most important microphytoplankton group in the WA whereas the proportion of Cyanobacteria was higher in the EA. High Cyanobacteria abundance in the EA may be linked to high DIP concentration. In the WA, the Bacillariophyceae Chaetoceros, Coscinodiscus, Grammatophora, Navicula and Pinnularia reached high abundance in relation with their good adaptability to adverse conditions. Copepods were the most abundant zooplankton present in the WA (54–100% of total zooplankton abundance), whereas other zooplankton were always dominant (60–90%) in the EA. The small pollution-tolerant Calanoid copepod Paracalanus parvus was dominant in the WA, illustrating its affinity for highly eutrophic sites. Despite human pressure and industrial activities, the coastal waters of Djerba showed a wide diversity of microphytoplankton and zooplankton.
{"title":"Spatial variation of summer microphytoplankton and zooplankton communities related to environmental parameters in the coastal area of Djerba Island (Tunisia, Eastern Mediterranean)","authors":"","doi":"10.12681/mms.30650","DOIUrl":"https://doi.org/10.12681/mms.30650","url":null,"abstract":"In the present study, we investigated the effects of pollution and anthropization on the summer distribution of phyto-zooplanktoncommunities in relation to environmental factors in the coastal zone of DjerbaIsland. On the basis of chemical factors, theDjerba coasts can be divided into two parts: the Western Area (WA), characterized by high values of nitrogen forms of nutrients,with higher N/P ratio, and the Eastern Area (EA), poorer in inorganic nitrogen with an N/P ratio lower than the Redfield ratio (16).Strong differences in terms of plankton communities were also observed between these two areas. Bacillariophyceae was the most important microphytoplankton group in the WA whereas the proportion of Cyanobacteria was higher in the EA. High Cyanobacteria abundance in the EA may be linked to high DIP concentration. In the WA, the Bacillariophyceae Chaetoceros, Coscinodiscus, Grammatophora, Navicula and Pinnularia reached high abundance in relation with their good adaptability to adverse conditions. Copepods were the most abundant zooplankton present in the WA (54–100% of total zooplankton abundance), whereas other zooplankton were always dominant (60–90%) in the EA. The small pollution-tolerant Calanoid copepod Paracalanus parvus was dominant in the WA, illustrating its affinity for highly eutrophic sites. Despite human pressure and industrial activities, the coastal waters of Djerba showed a wide diversity of microphytoplankton and zooplankton.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44080601","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 aims to quantify the effect of the grouper demersal longline fishery to elasmobranchs in the Gulf of Gabès to support future conservation actions for the most vulnerable species. Data from 162 demersal longline sets carried out during the grouper fishing seasons in 2016 and 2017 were analyzed. At least 17 elasmobranch species were caught, representing about 50% of the total catch in number which exceeded the target catch of groupers Epinephelus spp. (44.15%). Elasmobranchs were present in 139 (85.80%) out of the 162 examined sets, while the frequency of occurrence per set varied greatly depending on the species. The nominal Catches Per Unit Effort of all species combined was 3.07 specimens per 1,000 hooks/hour of fishing. Sharks and batoids contributed equally to the total elasmobranch catch, comprising 51.84% and 48.16% in terms of number, respectively. Mustelus mustelus, Carcharhinus plumbeus and Squalus spp. were the most abundant species, representing 45.65% of the total elasmobranch catch, whereas the remaining shark species were rarely caught (6.19%). Batoids were dominated by Glaucostegus cemiculus, which represented 19.07% of the total elasmobranch catch in number, followed by Dasyatis spp. (8.91%), Raja clavata (7.1%) and Taeniura grabata (4.59%). The elasmobranchs discarded due to their low commercial value and/or small size represented 11.34% of the total catch in number. According to the results of the Productivity and Susceptibility Analysis, the coastal viviparous elasmobranch species in the study area are highly vulnerable to the grouper longline fishery activity and should be carefully managed to reduce the likelihood of overfishing.
{"title":"Vulnerability of elasmobranchs caught as bycatch in the grouper longline fishery in the Gulf of Gabès, Tunisia","authors":"B. Saidi, S. Enajjar, M. Bradai","doi":"10.12681/mms.27483","DOIUrl":"https://doi.org/10.12681/mms.27483","url":null,"abstract":"The present study aims to quantify the effect of the grouper demersal longline fishery to elasmobranchs in the Gulf of Gabès to support future conservation actions for the most vulnerable species. Data from 162 demersal longline sets carried out during the grouper fishing seasons in 2016 and 2017 were analyzed. At least 17 elasmobranch species were caught, representing about 50% of the total catch in number which exceeded the target catch of groupers Epinephelus spp. (44.15%). Elasmobranchs were present in 139 (85.80%) out of the 162 examined sets, while the frequency of occurrence per set varied greatly depending on the species. The nominal Catches Per Unit Effort of all species combined was 3.07 specimens per 1,000 hooks/hour of fishing. Sharks and batoids contributed equally to the total elasmobranch catch, comprising 51.84% and 48.16% in terms of number, respectively. Mustelus mustelus, Carcharhinus plumbeus and Squalus spp. were the most abundant species, representing 45.65% of the total elasmobranch catch, whereas the remaining shark species were rarely caught (6.19%). Batoids were dominated by Glaucostegus cemiculus, which represented 19.07% of the total elasmobranch catch in number, followed by Dasyatis spp. (8.91%), Raja clavata (7.1%) and Taeniura grabata (4.59%). The elasmobranchs discarded due to their low commercial value and/or small size represented 11.34% of the total catch in number. According to the results of the Productivity and Susceptibility Analysis, the coastal viviparous elasmobranch species in the study area are highly vulnerable to the grouper longline fishery activity and should be carefully managed to reduce the likelihood of overfishing.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42314304","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}
ATHANASIOS ANASTASIADIS, EVANGELOS PAPADIMITRIOU, FRITHJOF C. KÜPPER
The above authors remove these recent publications due to remaining uncertainty because they are based on a visual observation by a citizen (citizen science), without a specimen being available. The available information was not adequate to support this record based solely on photographic evidence and direct contact between the authors and the citizen.
{"title":"Retraction Note: “4.4 First record of the goblin shark Mitsukurina owstoni Jordan, 1898 (Lamniformes: Mitsukurinidae) in the Mediterranean Sea” by Athanasios Anastasiadis, Evangelos Papadimitriou and Frithjof C. Küpper in: Kousteni, V. et al. (2022). New records of rare species in the Mediterranean Sea (May 2022). Mediterranean Marine Science, 23 (3), 417-446, doi: 10.12681/mms.28372 and Reply to Comment on “First record of the goblin shark Mitsukurina owstoni Jordan, 1898 (Lamniformes: …","authors":"ATHANASIOS ANASTASIADIS, EVANGELOS PAPADIMITRIOU, FRITHJOF C. KÜPPER","doi":"10.12681/mms.34033","DOIUrl":"https://doi.org/10.12681/mms.34033","url":null,"abstract":"The above authors remove these recent publications due to remaining uncertainty because they are based on a visual observation by a citizen (citizen science), without a specimen being available. The available information was not adequate to support this record based solely on photographic evidence and direct contact between the authors and the citizen.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136274879","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}
Nursery areas are essential fish habitats due to their relevance in the survival of early stages of fish populations. They are also considered as of high priority in marine conservation strategies. Here, we investigated the diet of white seabream [Diplodussargus (Linnaeus, 1758)] settlers in six nursery areas located in the shallow waters of coves in Minorca Island (Balearic Islands, Spain). Our aim was to characterize the food sources at different stages of juvenile development and their site-related variability in order to discern the importance of trophic links in cove selection during settling. The gut contents of 101 juveniles captured at different coves, three to the north of the island (N), and three in the southern coast (S), revealed a marked preference for feeding on crustaceans and, in particular, on harpacticoid copepods (>90% of gut contents). Copepods represented the main food source (80 ±4.4%; mean ±S.E.) in younger seabream individuals (10 - 15 mm length). A higher diversity in prey items was observed in the larger size-classes (s2: 16 - 23 and S3: 24 - 30 mm, respectively), which incorporated other prey items such as amphipods, isopods, foraminiferans or ostracods. Diet composition did not vary between the two surveyed locations (North vs. South of the island), but it did show significant differences among the six coves (p<0.001). Comparison between cove sediment infaunal composition and gut contents revealed that predation on sediment communities was scarce. Instead, diet was typically of phytal origin. Our results highlight the importance of the algal component of shallow coastal areas as a foraging habitat. In particular, harpacticoid copepods were key for survival during early development phases. The potential use of harpacticoid copepods to track ontogenic shifts in habitat use by juvenile fish is discussed.
{"title":"Mediterranean juvenile white seabream rely on phytal fauna as primary food source in coastal nursery areas","authors":"","doi":"10.12681/mms.30018","DOIUrl":"https://doi.org/10.12681/mms.30018","url":null,"abstract":"Nursery areas are essential fish habitats due to their relevance in the survival of early stages of fish populations. They are also considered as of high priority in marine conservation strategies. Here, we investigated the diet of white seabream [Diplodussargus (Linnaeus, 1758)] settlers in six nursery areas located in the shallow waters of coves in Minorca Island (Balearic Islands, Spain). Our aim was to characterize the food sources at different stages of juvenile development and their site-related variability in order to discern the importance of trophic links in cove selection during settling. The gut contents of 101 juveniles captured at different coves, three to the north of the island (N), and three in the southern coast (S), revealed a marked preference for feeding on crustaceans and, in particular, on harpacticoid copepods (>90% of gut contents). Copepods represented the main food source (80 ±4.4%; mean ±S.E.) in younger seabream individuals (10 - 15 mm length). A higher diversity in prey items was observed in the larger size-classes (s2: 16 - 23 and S3: 24 - 30 mm, respectively), which incorporated other prey items such as amphipods, isopods, foraminiferans or ostracods. Diet composition did not vary between the two surveyed locations (North vs. South of the island), but it did show significant differences among the six coves (p<0.001). Comparison between cove sediment infaunal composition and gut contents revealed that predation on sediment communities was scarce. Instead, diet was typically of phytal origin. Our results highlight the importance of the algal component of shallow coastal areas as a foraging habitat. In particular, harpacticoid copepods were key for survival during early development phases. The potential use of harpacticoid copepods to track ontogenic shifts in habitat use by juvenile fish is discussed.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43924562","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 Western Atlantic goby Ctenogobius boleosoma (Jordan & Gilbert, 1882) was found at the Agri River mouth, south Italy. It is the northwesternmost record of an alien goby recorded in the Mediterranean Sea. The present record confirms the presence of C. boleosoma in the Mediterranean Sea, recently reported only by the DNA barcoding of larvae collected in the mesopelagic depths of the Levant Sea. The present record of adult individuals, including ripe females, indicates an established population present in shallow estuarine waters matching the species’ native habitat conditions. The morphology and coloration of Mediterranean C. boleosoma are described and discussed. A detailed description of the cephalic lateral-line system of C. boleosoma is given for the first time. Ten species of the Mediterranean alien gobies are most likely Lessepsian migrants. Three gobiid aliens are Indo-Pacific gobies not present in the Red Sea and probably introduced by shipping. The alien gobies include only one Atlantic species and the Eastern Atlantic ingression component is lacking compared to the other alien fishes in the Mediterranean Sea. Indo-Pacific gobies have been quite successful in the colonization in Mediterranean and in the establishment of the Levant populations. However, contrary to other alien fishes, gobies show limited distribution across the Mediterranean Sea, with almost all alien gobies still being restricted to the Levant.
{"title":"Ctenogobius boleosoma (Jordan & Gilbert, 1882) (Gobiiformes: Gobiidae), the northwesternmost record of an alien goby in the Mediterranean Sea, and a review of Mediterranean alien gobies","authors":"M. Kovačić, Stefano Sacchetti","doi":"10.12681/mms.31954","DOIUrl":"https://doi.org/10.12681/mms.31954","url":null,"abstract":"The Western Atlantic goby Ctenogobius boleosoma (Jordan & Gilbert, 1882) was found at the Agri River mouth, south Italy. It is the northwesternmost record of an alien goby recorded in the Mediterranean Sea. The present record confirms the presence of C. boleosoma in the Mediterranean Sea, recently reported only by the DNA barcoding of larvae collected in the mesopelagic depths of the Levant Sea. The present record of adult individuals, including ripe females, indicates an established population present in shallow estuarine waters matching the species’ native habitat conditions. The morphology and coloration of Mediterranean C. boleosoma are described and discussed. A detailed description of the cephalic lateral-line system of C. boleosoma is given for the first time. Ten species of the Mediterranean alien gobies are most likely Lessepsian migrants. Three gobiid aliens are Indo-Pacific gobies not present in the Red Sea and probably introduced by shipping. The alien gobies include only one Atlantic species and the Eastern Atlantic ingression component is lacking compared to the other alien fishes in the Mediterranean Sea. Indo-Pacific gobies have been quite successful in the colonization in Mediterranean and in the establishment of the Levant populations. However, contrary to other alien fishes, gobies show limited distribution across the Mediterranean Sea, with almost all alien gobies still being restricted to the Levant.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41782163","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}
JÜRGEN POLLERSPÖCK, SIMON WEIGMANN, BERNARD SERET, NICOLAS STRAUBE
no abstract
没有抽象的
{"title":"Comment on “4.4 First record of the goblin shark Mitsukurina owstoni Jordan, 1898 (Lamniformes: Mitsukurinidae) in the Mediterranean Sea” by Athanasios Anastasiadis, Evangelos Papadimitriou and Frithjof C. Küpper in: Kousteni, V., Anastasiadis, A., Bariche, M., Battaglia, P., Bonifazi, A. et al. (2022). New records of rare species in the Mediterranean Sea (May 2022). Mediterranean Marine Science, 23 (3), 417-446","authors":"JÜRGEN POLLERSPÖCK, SIMON WEIGMANN, BERNARD SERET, NICOLAS STRAUBE","doi":"10.12681/mms.31742","DOIUrl":"https://doi.org/10.12681/mms.31742","url":null,"abstract":"no abstract","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":"372 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135957194","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}
David Ruiz-García, P. García-Salinas, J. Raga, A. Moura, M. Dromby, C. Barría
On 15 March 2021, a male Hexanchus griseus was incidentally captured by a commercial bottom trawler at 550-730 m depth in the Gulf of Valencia (Spain). The specimen measured 251.8 cm in total length, weighed 86.2 kg and its reproductive system was fully developed, characterizing it as the smallest mature male bluntnose sixgill shark recorded in the Mediterranean Sea. The specimen hosted the ectoparasitic copepod Demoleus heptapus. Remains of a Stenella coeruleoalba calf were identified in its stomach content by applying molecular methods. The feeding behaviour of H. griseus as either actively preying on live cetaceans or as scavenging on carcasses is reviewed and discussed to better understand the species’ role in marine food webs.
{"title":"New record of Hexanchus griseus in the northwestern Mediterranean Sea with insights into its biology and feeding ecology","authors":"David Ruiz-García, P. García-Salinas, J. Raga, A. Moura, M. Dromby, C. Barría","doi":"10.12681/mms.29940","DOIUrl":"https://doi.org/10.12681/mms.29940","url":null,"abstract":"On 15 March 2021, a male Hexanchus griseus was incidentally captured by a commercial bottom trawler at 550-730 m depth in the Gulf of Valencia (Spain). The specimen measured 251.8 cm in total length, weighed 86.2 kg and its reproductive system was fully developed, characterizing it as the smallest mature male bluntnose sixgill shark recorded in the Mediterranean Sea. The specimen hosted the ectoparasitic copepod Demoleus heptapus. Remains of a Stenella coeruleoalba calf were identified in its stomach content by applying molecular methods. The feeding behaviour of H. griseus as either actively preying on live cetaceans or as scavenging on carcasses is reviewed and discussed to better understand the species’ role in marine food webs.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47913475","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}
Marine organisms with pelagic planktonic larval stages have high dispersal potential, yet their ranges are restricted by present and historical geographic and oceanographic features. Hydrogeographic features, such as straits and water current patterns, as well as paleoclimate can affect population connectivity, genetic differentiation, and ultimately speciation, but species distributions are also affected by life history characteristics. This study evaluates the effect of the Turkish Straits System (TSS) on the genetic differentiation of two benthic invertebrates with pelagic larvae, the Mediterranean mussel, Mytilus galloprovincialis, and the rockpool prawn, Palaemon elegans, using mitochondrial and nuclear markers (microsatellites for M. galloprovincialis and Histone H3 gene for P. elegans). For both species, the mitochondrial DNA analyses separated the Black Sea and the Eastern Mediterranean (Aegean and Levantine seas) populations into two clusters. In contrast, in both species the nuclear data indicated no differentiation between Black Sea and Eastern Mediterranean populations. The results suggest that for both species, some individuals of Black Sea origin moved south, most likely through the transport of their pelagic larvae via the surface currents of the TSS. However, for the most part, individuals of Mediterranean origin (from Aegean and Levantine seas) were not able to successfully migrate in the opposite direction, though the small differences in the frequencies of migration in this direction indicate the effects of the life history characteristics of the two species on genetic structure.
{"title":"The Intertwined Effects of Hydrographic Barriers, Palaeoclimate and Life History on Genetic Structure of Marine Populations: A Case Study of Two Marine Invertebrates","authors":"","doi":"10.12681/mms.29072","DOIUrl":"https://doi.org/10.12681/mms.29072","url":null,"abstract":"Marine organisms with pelagic planktonic larval stages have high dispersal potential, yet their ranges are restricted by present and historical geographic and oceanographic features. Hydrogeographic features, such as straits and water current patterns, as well as paleoclimate can affect population connectivity, genetic differentiation, and ultimately speciation, but species distributions are also affected by life history characteristics. This study evaluates the effect of the Turkish Straits System (TSS) on the genetic differentiation of two benthic invertebrates with pelagic larvae, the Mediterranean mussel, Mytilus galloprovincialis, and the rockpool prawn, Palaemon elegans, using mitochondrial and nuclear markers (microsatellites for M. galloprovincialis and Histone H3 gene for P. elegans). For both species, the mitochondrial DNA analyses separated the Black Sea and the Eastern Mediterranean (Aegean and Levantine seas) populations into two clusters. In contrast, in both species the nuclear data indicated no differentiation between Black Sea and Eastern Mediterranean populations. The results suggest that for both species, some individuals of Black Sea origin moved south, most likely through the transport of their pelagic larvae via the surface currents of the TSS. However, for the most part, individuals of Mediterranean origin (from Aegean and Levantine seas) were not able to successfully migrate in the opposite direction, though the small differences in the frequencies of migration in this direction indicate the effects of the life history characteristics of the two species on genetic structure.","PeriodicalId":51128,"journal":{"name":"Mediterranean Marine Science","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44555486","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：