Browsing by Author "Taskin E."
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Item The marine algae of ayvalik (Aegean Sea, Turkey)(Middle East Technical University, 2005) Taskin E.; Öztürk M.This paper contains taxonomic studies on the red algae (Rhodophyceae), brown algae (Phaeophyceae) and green algae (Chlorophyceae) of the Ayvalik (Aegean Sea, Turkey). Sampling were done at the upper-infralittoral zone between March 2002 and August 2004. The material was collected with snorkeling and SCUBA, and specimens were preserved in 4% formaldehyde in sea water and deposited in the Department of Biology, Celal Bayar University. In this study, two species of Rhodophyceae are reported from the eastern Aegean Sea (Turkey) for the first time: Botryocladia madagascariensis Feldmann-Mazoyer (Rhodymeniales, Rhodymeniaceae) and Monosporus pedicellatus (Smith) Solier (Ceramiales, Ceramiaceae).Item Antibacterial activities of some marine algae from the Aegean Sea (Turkey)(Academic Journals, 2007) Taskin E.; Ozturk M.; Taskin E.; Kurt O.In this study, methanolic extracts of six marine algae belong to Rhodophyceae (Corallina officinalis), Phaeophyceae (Cystoseira barbata, Dictyota dichotoma, Halopteris filicina, Cladostephus spongiosus f. verticillatus) and Chlorophyceae (Ulva rigida) from the North Aegean Sea (Turkey) were studied for their antibacterial activity against pathogenic microbes, 3 gram positive (Staphylococcus aureus, Micrococcus luteus and Enterococcus faecalis) and 3 Gram negative (Escherichia coli, Enterobacter aerogenes and E. coli O157:H7) in vitro. Extracts of all the test marine algae except C. officinalis showed inhibition against S. aureus. On the other hand, highest inhibiton activity among all the extratcs was shown to E. aerogenes by C. officinalis. The extract from C. barbata has shown broader activity spectrum against all the test organisms. © 2007 Academic Journals.Item A summary of reports of Ulvaceae (Chlorophyta) from Turkey(Asian Network for Scientific Information, 2007) Taskin E.A revised list of the taxa of the Ulvaceae occurring in Turkey is reported in this research. A total of 25 taxa of this family is herein reported from Turkey. Also, the transfers of four taxa of Enteromorpha to Ulva are proposed: Ulva intestinalis L. var. asexualis (Bliding) E. Taskin comb. nov. (Enteromorpha intestinalis var. asexualis Bliding, 1963), Ulva intestinalis forma ramosa (Vinogradova) E. Taskin comb. nov. (Enteromorpha intestinalis forma ramosa Vinogradova, 1974), Ulva intestinalis forma saprobia (Vinogradova) E. Taskin comb. nov. (Enteromorpha intestinalis forma saprobia Vinogradova, 1974) and Ulva prolifera subsp. gullmariensis (Bliding) E. Taskin comb. nov. (Enteromorpha prolifera subsp. gullmariensis Bliding, 1963). A total of 25 taxa (species and intraspecific) reported from Turkey. © 2007 Asian Network for Scientific Information.Item The marine brown algae of the East Aegean Sea and Dardanelles I. Ectocarpaceae, Pylaiellaceae, Chordariaceae, Elachistaceae and Giraudiaceae(2007) Taskin E.; Ozturk M.In this paper 33 species of brown algae (Ectocarpaceae 20, Pylaiellaceae 1, Chordariaceae 9, Elachistaceae 2 and 1 Giraudiaceae) collected along the coast of the East Aegean Sea, Turkey, are reported. Six species are new to Turkey: Hincksia ovata (Kjellman) P.C. Silva, Phaeostroma bertholdii Kuckuck, Streblonema cf. parasiticum (Sauvageau) De Toni, Elachista fucicola (Velley) Areschoug, Spongonema tomentosum (Hudson) Kützing, Cladosiphon irregularis (Sauvageau) Kylin. The first four of them are also new to the Aegean Sea. Data concerning geographical distribution, morphology and ecology of each species are also given. © 2007 Adac.Item The marine brown algae of the east Aegean Sea and Dardanelles II. Ectocarpaceae, chordariaceae and scytosiphonaceae(2008) Taskin E.This paper reports 31 species of Phaeophyceae (1 Ectocarpaceae, 24 Chordariaceae and 6 Scytosiphonaceae) from the Dardanelles and the Aegean coast of Turkey. Four species are reported for the first time from the coast of Turkey and the Aegean Sea: Kuckuckia spinosa (Kützing) Kornmann, Botrytella micromora Bory, Petrospongium sp. and Hecatonema terminale (Kützing) Kylin. Notes on geographical distribution, morphology and ecology are given for each species. © 2008 Adac.Item Assessment of in vitro antitumoral and antimicrobial activities of marine algae harvested from the eastern Mediterranean sea(2010) Taskin E.; Caki Z.; Ozturk M.; Taskin E.Antitumoral activities of five algal extracts obtained from the marine algae Scytosiphon lomentaria, Padina pavonica, Cystoseira mediterranea (Phaeophyceae), Hypnea musciformis and Spyridia filamentosa (Rhodophyta) were assessed against the human breast adenocarcinoma cell line MCF-7 and the human prostate carcinoma epithelium like cell lines DU 145, LNCaP, PC3 using the cytotoxic assay, in vitro. The crude extract of S. filamentosa showed strong cytotoxic activity against the DU-145 cell line, and it showed less than 10% cell viability after treatment. Antimicrobial activities of the crude extracts of algae (with the exception of H. musciformis) were also tested by disc diffusion assay against three Gram positive and five Gram negative bacterial strains and against the yeast pathogen Candida albicans. Among the extraxts, S. lomentaria extract (prepared with methanol) inhibited highly Gram negative bacterium Salmonella typhimurium growth while C. albicans growth was only inhibited by C. mediterrranea extract. © 2010 Academic Journals.Item Cylindrocarpus kuckuckii sp. nov. (Chordariaceae, Phaeophyceae), a newly recognized species from the Aegean Sea (Turkey)(2010) Taskin E.; Wynne M.J.; Öztürk M.Cylindrocarpus kuckuckii sp. nov. (Chordariaceae, Phaeophyceae) is described on the basis of two collections from Ayvalik, Turkey (Aegean Sea). This taxon has been recognized for more than a century by several workers, starting with Kuckuck (1899), as a form of C. microscopicus which is the type and hitherto only recognized species in the genus. Evidence is presented here that C. kuckuckii can be distinguished from C. microscopicus at the species level by its epilithic habit, the pseudodichotomous nature of its erect branches, the larger sizes of the cells of the assimilatory filaments, the relatively larger size of the plurilocular sporangia and its larger overall thallus dimensions. © 2010 J. Cramer in der Gebrüder Borntraeger Verlagsbuchhandlung.Item The Amsterdam Declaration on Fungal Nomenclature(International Mycological Association, 2011) Hawksworth D.L.; Crous P.W.; Redhead S.A.; Reynolds D.R.; Samson R.A.; Seifert K.A.; Taylor J.W.; Wingfield M.J.; Abaci Ö.; Aime C.; Asan A.; Bai F.-Y.; de Beer Z.W.; Begerow D.; Berikten D.; Boekhout T.; Buchanan P.K.; Burgess T.; Buzina W.; Cai L.; Cannon P.F.; Crane J.L.; Damm U.; Daniel H.-M.; van Diepeningen A.D.; Druzhinina I.; Dyer P.S.; Eberhardt U.; Fell J.W.; Frisvad J.C.; Geiser D.M.; Geml J.; Glienke C.; Gräfenhan T.; Groenewald J.Z.; Groenewald M.; de Gruyter J.; Guého-Kellermann E.; Guo L.-D.; Hibbett D.S.; Hong S.-B.; de Hoog G.S.; Houbraken J.; Huhndorf S.M.; Hyde K.D.; Ismail A.; Johnston P.R.; Kadaifciler D.G.; Kirk P.M.; Kõljalg U.; Kurtzman C.P.; Lagneau P.-E.; André Lévesque C.; Liu X.; Lombard L.; Meyer W.; Miller A.; Minter D.W.; Najafzadeh M.J.; Norvell L.; Ozerskaya S.M.; öziç R.; Pennycook S.R.; Peterson S.W.; Pettersson O.V.; Quaedvlieg W.; Robert V.A.; Ruibal C.; Schnürer J.; Schroers H.-J.; Shivas R.; Slippers B.; Spierenburg H.; Takashima M.; Taskin E.; Thines M.; Thrane U.; Uztan A.H.; van Raak M.; Varga J.; Vasco A.; Verkley G.; Videira S.I.; de Vries R.P.; Weir B.S.; Yilmaz N.; Yurkov A.; Zhang N.The Amsterdam Declaration on Fungal Nomenclature was agreed at an international symposium convened in Amsterdam on 19-20 April 2011 under the auspices of the International Commission on the Taxonomy of Fungi (ICTF). The purpose of the symposium was to address the issue of whether or how the current system of naming pleomorphic fungi should be maintained or changed now that molecular data are routinely available. The issue is urgent as mycologists currently follow different practices, and no consensus was achieved by a Special Committee appointed in 2005 by the International Botanical Congress to advise on the problem. The Declaration recognizes the need for an orderly transitition to a single-name nomenclatural system for all fungi, and to provide mechanisms to protect names that otherwise then become endangered. That is, meaning that priority should be given to the first described name, except where that is a younger name in general use when the first author to select a name of a pleomorphic monophyletic genus is to be followed, and suggests controversial cases are referred to a body, such as the ICTF, which will report to the Committee for Fungi. If appropriate, the ICTF could be mandated to promote the implementation of the Declaration. In addition, but not forming part of the Declaration, are reports of discussions held during the symposium on the governance of the nomenclature of fungi, and the naming of fungi known only from an environmental nucleic acid sequence in particular. Possible amendments to the Draft BioCode (2011) to allow for the needs of mycologists are suggested for further consideration, and a possible example of how a fungus only known from the environment might be described is presented. © 2011 International Mycological Association.Item Antioxidative and antimicrobial activities of some marine algae(2011) Çaki Z.; Öztiirk M.; Taskin E.; Taskin E.In the present study the antioxidant activities exhibited by the crude extracts of six marine algae collected from the Aegean Sea shores of Turkey were examined: Padina pavonica, Cystoseira barbota, and Sargassum acinarium of the Phaeophyceae (brown algae), Caulerpa racemosa var. cylindracea of the Bryopsidophyceae (green algae), and Jania longifurca and Laurencia obtusa belonging to the Rhodophyceae (red algae). Antioxidant activities were assessed by measurement of glutathion peroxidase activity spectrophotometrically and malondialdehyde measurement for lipid peroxidation by HPLC. Among the species examined, the highest antioxidative capacity according to specific glutathion peroxidase activity was measured from the extract of the brown alga Sargassum acinarium (124 U/mg protein) followed by another brown alga Padina pavonica (16.20 U/mg protein). Malondialdehyde contents of extracts as an indicator of lipid peroxidation were compared, and S. acinarium extract had the lowest MDA level (0.229 μmol/1). Antimicrobial activities of the methanolic extracts of P. pavonica, Cy. barbota, S. acinarium and J. longifurca were also evaluated against eight microorganisms (7 bacteria and a yeast strain). The extracts showed moderate inhibitory activity. © by PSP.Item New mediterranean biodiversity records (june 2012)(Hellenic Centre for Marine Research, 2012) Nicolaidou A.; Alongi G.; Aydogan O.; Catra M.; Cavas L.; Cevik C.; Dosi A.; Circosta V.; Giakoumi S.; Giménez-Casalduero F.; Filiz H.; Izquierdo-Muñoz A.; Kalogirou S.; Konstantinidis E.; Kousteni V.; Kout J.; Legaki A.; Megalofonou P.; Ovalis P.; Paolillo G.; Paschos I.; Perdikaris C.; Poursanidis D.; Ramos-Esplá A.A.; Reizopoulou S.; Sperone E.; Taskin E.; Tripepi S.; Vázquez-Luis M.The present work reports on the extended distribution of nineteen species in the Mediterranean. These are: Upeneus pori (Fish:Turkey), Bursatella leachii (Mollusca, Opisthobranchia: eastern coast of Spain), Sparisoma cretense (Fish: Ionian coast of Greece), Pseudobryopsis myura (Chlorophyta:Turkey), Aplysia dactylomela (Mollusca, Opisthobranchia: Karpathos island, and Kyklades Archipelago, Greece), Asparagopsis armata and Botryocladia madagascariensis (Rhodophyta: South Peloponnesos, Greece), Oxynotus centrina (Fish: Greece), Caulerpa racemosa var. cylindracea (Chlorophyta), Stypopodium schimperi (Phaeophyta) Siganus luridus and Stephanolepis diaspros (Fish) Percnon gibbesi (Decapoda, Brachyura) (Kyklades Archipelago, Greece), Cerithium scabridum (Mollusca, Prosobranchia: Anavissos: Greece) and Cerithium renovatum (Mollusca, Prosobranchia: N. Κriti), Cassiopea andromeda (Scyphomedusa: Rhodos Island, Greece), Abra tenuis (Mollusca Bivalvia: Vouliagmeni Lake, Greece) Lagocephalus lagocephalus (Fish: Calabrian coast, Italy) and Plocamopherus ocellatus (Mollusca, Opisthobranchia: İskenderun Bay, Turkey).Item Ecoregion-Based Conservation Planning in the Mediterranean: Dealing with Large-Scale Heterogeneity(2013) Giakoumi S.; Sini M.; Gerovasileiou V.; Mazor T.; Beher J.; Possingham H.P.; Abdulla A.; Çinar M.E.; Dendrinos P.; Gucu A.C.; Karamanlidis A.A.; Rodic P.; Panayotidis P.; Taskin E.; Jaklin A.; Voultsiadou E.; Webster C.; Zenetos A.; Katsanevakis S.Spatial priorities for the conservation of three key Mediterranean habitats, i.e. seagrass Posidonia oceanica meadows, coralligenous formations, and marine caves, were determined through a systematic planning approach. Available information on the distribution of these habitats across the entire Mediterranean Sea was compiled to produce basin-scale distribution maps. Conservation targets for each habitat type were set according to European Union guidelines. Surrogates were used to estimate the spatial variation of opportunity cost for commercial, non-commercial fishing, and aquaculture. Marxan conservation planning software was used to evaluate the comparative utility of two planning scenarios: (a) a whole-basin scenario, referring to selection of priority areas across the whole Mediterranean Sea, and (b) an ecoregional scenario, in which priority areas were selected within eight predefined ecoregions. Although both scenarios required approximately the same total area to be protected in order to achieve conservation targets, the opportunity cost differed between them. The whole-basin scenario yielded a lower opportunity cost, but the Alboran Sea ecoregion was not represented and priority areas were predominantly located in the Ionian, Aegean, and Adriatic Seas. In comparison, the ecoregional scenario resulted in a higher representation of ecoregions and a more even distribution of priority areas, albeit with a higher opportunity cost. We suggest that planning at the ecoregional level ensures better representativeness of the selected conservation features and adequate protection of species, functional, and genetic diversity across the basin. While there are several initiatives that identify priority areas in the Mediterranean Sea, our approach is novel as it combines three issues: (a) it is based on the distribution of habitats and not species, which was rarely the case in previous efforts, (b) it considers spatial variability of cost throughout this socioeconomically heterogeneous basin, and (c) it adopts ecoregions as the most appropriate level for large-scale planning. © 2013 Giakoumi et al.Item Ecological status of the coastal waters of Ayvalık (Aegean Sea, Turkey) assessed using the EEI method; [EEI metodu ile Ayvalık (Türkiye) kıyı sularının ekolojik durumunun saptanması](Cevkor Vakfi, 2015) Taskin E.Macroalgae and angiosperms are proposed as biological elements to assess the ecological status of coastal waters and transitional systems by the EU Water Framework Directive. Recently, the Ecological Evaluation Index (EEI) was intercalibrated in the Mediterranean eco-region by the Mediterranean Geographic Intercalibration Group (MEDGIG). In the present paper, the EEI was tested at two different localities, the inner and outer bays of the city Ayvalık located on the Aegean coast of Turkey. The study shows a high ecological quality for the outer bay, whereas, the inner bay is of moderate quality. © 2015, Cevkor Vakfi. All rights reserved.Item Seasonal investigation of the protein, carbohydrate and lipid contens of dominant macroalgae on the western coast of the black sea(Parlar Scientific Publications, 2017) Yesilova K.; Balkis N.; Taskin E.In this study, the ecological features and total protein, carbohydrate and lipid amounts of the dominant macroalgal species of the western Black Sea coast were investigated. Seasonal samplings were carried out at five coastal stations (Sts. İğneada, Kiyiköy, Yaliköy, Karaburun, Kilyos) between November 2012 and August 2013. After the examination of the collected samples, 25 macroalgal species belonging to 9 families and 11 genera were determined. The highest protein content has been determined in the summer season sampling of Callithamnion corymbosum with a percentage of 47.09% (St. igneada), while the lowest one has been determined in the winter season sampling of Corallina officinalis with a percentage of 0.10% (St. Yalikoy). The highest proportion in carbohydrate content was observed in Ceramium virgatum (87.02%) collected in summer at Kilyos station, while the lowest one has been found in Cystoseira barbata (2.60%) which was sampled in the autumn season at Karaburun station. The highest lipid ratio has been found in summer in Callithamnion corymbosum (22.04%, St. Igneada), and the lowest ratio has been found in spring in Ulva compressa (0.75%, St. Kilyos). The sea temperature values varied between 6.71°C-25.02°C, the salinity varied between 11.95-16.54%o, the dissolved oxygen varied between 6.95-14.61mg/L and the pH values varied between 4.67-7.28 during the study. © 2017 Parlar Scientific Publications. All rights reserved.Item Anti-acetylcholinesterase, antiprotozoal and cytotoxic activities of some Turkish marine algae(Parlar Scientific Publications, 2019) Cinar E.; Taskin E.; Tasdemir D.; Ozkale E.; Grienke U.; Firsova D.The crude (MeOH:CHCl3) and n-hexane-soluble extracts from four brown algae (Phaeophyceae) [Petalonia fascia, Cystoseira crinita, Cystoseira foeniculacea, and Halopteris scoparia], one red alga (Rhodophyta) [Jania rubens] and three green algae (Chlorophyta) [Chaetomorpha aerea, Codium fragile subsp. fragile, and Ulva compressa] from Turkish coasts (Izmir Bay, Ayvalik and Çanakkale) were assessed in vitro for their acetylcholinesterase (AChE) inhibitory activities at 200, 150, 50, 20 μg/mL test concentration with Ellman's method. The crude extract of P. fascia possessed the highest inhibition (IC5 0 value of 19,22±10,47 μg/mL) against AChE. Galanthamine HBr was used as standard drug that gave against AChE enzyme IC5 0 of 3.44±1.14 μM. In the second stage, the crude, hexane-soluble, chloroform-soluble and water-methanol soluble extracts of the marine algae were observed in vitro against parasitic protozoa (Plasmodium falciparum, Trypanosoma brucei brucei, Trypanosoma cruzi ve Leishmania infantum). According to results, the most potent protozoal activities were shown by the Khex of C. crinita (IC5 0 value of 10,62 μg/ml), followed by the Khex of C. fragile subsp. fragile (IC50 value of 11,89 μg/ml). The hekzan-soluble (Khex) and chloroform-soluble (KCH) extracts gave the best results. The marine algae were also tested on MRC-5 cells (human fibroblasts) for by controlling tamoxifen. The extracts of H. scoparia, C. aerea ve C. fragile subsp. fragile showed toxicity. © by PSPItem Modeling macroalgal forest distribution at mediterranean scale: Present status, drivers of changes and insights for conservation and management(Frontiers Media S.A., 2020) Fabbrizzi E.; Scardi M.; Ballesteros E.; Benedetti-Cecchi L.; Cebrian E.; Ceccherelli G.; De Leo F.; Deidun A.; Guarnieri G.; Falace A.; Fraissinet S.; Giommi C.; Mačić V.; Mangialajo L.; Mannino A.M.; Piazzi L.; Ramdani M.; Rilov G.; Rindi L.; Rizzo L.; Sarà G.; Souissi J.B.; Taskin E.; Fraschetti S.Macroalgal forests are one of the most productive and valuable marine ecosystems, but yet strongly exposed to fragmentation and loss. Detailed large-scale information on their distribution is largely lacking, hindering conservation initiatives. In this study, a systematic effort to combine spatial data on Cystoseira C. Agardh canopies (Fucales, Phaeophyta) was carried out to develop a Habitat Suitability Model (HSM) at Mediterranean scale, providing critical tools to improve site prioritization for their management, restoration and protection. A georeferenced database on the occurrence of 20 Cystoseira species was produced collecting all the available information from published and grey literature, web data portals and co-authors personal data. Data were associated to 55 predictor variable layers in the (ASCII) raster format and were used in order to develop the HSM by means of a Random Forest, a very effective Machine Learning technique. Knowledge about the distribution of Cystoseira canopies was available for about the 14% of the Mediterranean coastline. Absence data were available only for the 2% of the basin. Despite these gaps, our HSM showed high accuracy levels in reproducing Cystoseira distribution so that the first continuous maps of the habitat across the entire basin was produced. Misclassification errors mainly occurred in the eastern and southern part of the basin, where large gaps of knowledge emerged. The most relevant drivers were the geomorphological ones, followed by anthropogenic variables proxies of pollution and urbanization. Our model shows the importance of data sharing to combine a large number of spatial and environmental data, allowing to individuate areas with high probability of Cystoseira occurrence as suitable for its presence. This approach encourages the use of this modeling tool for the prediction of Cystoseira distribution and for supporting and planning conservation and management initiatives. The step forward is to refine the spatial information of presence-absence data about Cystoseira canopies and of environmental predictors in order to address species-specific assessments. © 2020 Fabbrizzi, Scardi, Ballesteros, Benedetti-Cecchi, Cebrian, Ceccherelli, De Leo, Deidun, Guarnieri, Falace, Fraissinet, Giommi, Mačić, Mangialajo, Mannino, Piazzi, Ramdani, Rilov, Rindi, Rizzo, Sarà, Souissi, Taskin and Fraschetti.Item Effects of Natural and Anthropogenic Stressors on Fucalean Brown Seaweeds Across Different Spatial Scales in the Mediterranean Sea(Frontiers Media S.A., 2021) Orfanidis S.; Rindi F.; Cebrian E.; Fraschetti S.; Nasto I.; Taskin E.; Bianchelli S.; Papathanasiou V.; Kosmidou M.; Caragnano A.; Tsioli S.; Ratti S.; Fabbrizzi E.; Verdura J.; Tamburello L.; Beqiraj S.; Kashta L.; Sota D.; Papadimitriou A.; Mahmoudi E.; Kiçaj H.; Georgiadis K.; Hannachi A.; Danovaro R.Algal habitat-forming forests composed of fucalean brown seaweeds (Cystoseira, Ericaria, and Gongolaria) have severely declined along the Mediterranean coasts, endangering the maintenance of essential ecosystem services. Numerous factors determine the loss of these assemblages and operate at different spatial scales, which must be identified to plan conservation and restoration actions. To explore the critical stressors (natural and anthropogenic) that may cause habitat degradation, we investigated (a) the patterns of variability of fucalean forests in percentage cover (abundance) at three spatial scales (location, forest, transect) by visual estimates and or photographic sampling to identify relevant spatial scales of variation, (b) the correlation between semi-quantitative anthropogenic stressors, individually or cumulatively (MA-LUSI index), including natural stressors (confinement, sea urchin grazing), and percentage cover of functional groups (perennial, semi-perennial) at forest spatial scale. The results showed that impacts from mariculture and urbanization seem to be the main stressors affecting habitat-forming species. In particular, while mariculture, urbanization, and cumulative anthropogenic stress negatively correlated with the percentage cover of perennial fucalean species, the same stressors were positively correlated with the percentage cover of the semi-perennial Cystoseira compressa and C. compressa subsp. pustulata. Our results indicate that human impacts can determine spatial patterns in these fragmented and heterogeneous marine habitats, thus stressing the need of carefully considering scale-dependent ecological processes to support conservation and restoration. © Copyright © 2021 Orfanidis, Rindi, Cebrian, Fraschetti, Nasto, Taskin, Bianchelli, Papathanasiou, Kosmidou, Caragnano, Tsioli, Ratti, Fabbrizzi, Verdura, Tamburello, Beqiraj, Kashta, Sota, Papadimitriou, Mahmoudi, Kiçaj, Georgiadis, Hannachi and Danovaro.Item The genus Cystoseira of Algeria (southwestern Mediterranean): First report of Cystoseira humilis var. myriophylloides (Sauvageau) J.H.Price & D.M.John, 1978(Iranian Society of Ichthyology, 2022) Bahbah L.; Bensari B.; Taskin E.; Chabane K.; Anteur A.; Seridi H.A revised list of Cystoseira species in Algerian coasts is established in this study. Eighteen taxa at specific and infraspecific levels accepted for Algeria are inventoried from updated literature and personal investigations. We report for the first time the presence of Cystoseira humilis var. myriophylloides (Sauvageau) J.H.Price & D.M.John on the Algerian coast. © 2022, Iranian Society of Ichthyology. All rights reserved.