DOCSLIB.ORG

Icesihelcom Benthos Taxonomic Workshop

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Icesihelcom Benthos Taxonomic Workshop Advisory Committee on the Marine Environment ICES CM 1998/ACME:8 Ref.: E {)/O REPORT OF THE ICESIHELCOM BENTHOS TAXONOMIC WORKSHOP Roskilde, Denmark 4-7 November 1997 This report is not to be quoted without prior consuItation with the General Secretary. The document is areport of an expert group under the auspices of the International Council for the Exploration of the Sea and does not necessarily represent the views of the CounciI. International Council for the Exploration of the Sea Conseil International pour I'Exploration de la Mer Pal:rgade 2-4 DK-1261 Copenhagen K Denmark TABLE OF CONTENTS Section Page INTRODUCTION 1 2 TERMS OF REFERENCE 1 3 PROGRAMME FOR THE WORKSHOP 1 3.1 Phyllodocidae 1 3.2 Nephlyidae, Nereidae, and Polynoidae 1 3.3 Porifera 1 3.4 Sampling Techniques and Preservalion Practices 1 3.5 Pholoidae, Cirratulidae, and Ampharetidae 2 3.6 Gastropoda: Hydrobia. and Potamopyrgos 2 3.7 Gastropoda: Tectibranch Opistobranchia 2 3.8 Bivalvia: The Cardium-complex 2 3.9 Polychaeta: Spionidae and Flabelligeridae 2 3.10 Amphipoda 3 3.11 Feedback and General Discussion on Future Workshops 3 3.12 Closing ofthe Workshop 3 4 REFERENCES 3 ANNEX 1: LIST OF WORKSHOP PARTICIPANTS 4 ANNEX 2: AGENDA 6 ANNEX 3: PHYLLODOCIDAE 7 • ANNEX 4: SELECTIVE LIST OF REFERENCES FOR POLYCHAETA FROM THE KATIEGAT AND THE BALTIC SEA 9 ANNEX 5: IDENTIFICATION OF SPONGES 10 ANNEX 6: FINAL NOTES 21 - ANNEX 7: CIRRATULIDAE FROM THE KATIEGAT, 0RESUND, AND BALTIC SEA 22 ANNEX 8: A TAXONOMIC SCHEME 33 ANNEX 9: MORPHOLOGICAL FEATURES 37 ANNEX 10: THE LUMBRINERIDAE OF THE KATIEGAT AND THE BALTIC SEA 38 ANNEX 11: THE SPIONIDAE OF THE KATIEGAT AND THE BALTIC SEA 39 1 INTRODUCTION The ICESIHELCOM Benthos Taxonomie Workshop (WKBT) was the outcome of work initiated by the ICESIHELCOM Steering Group on Quality Assurance of Biological Measurements (SGQAB). An intercalibration exercise carried out by the Steering Group indicated that misidentification of species often occurs in the monitoring of benthie macrofauna. The aim of the Workshop was to minimize the possibility for species misidentification and to raise the general level of taxonomic knowledge among the persons who carry out the practical monitoring. The Workshop was held at the National Environmental Research Institute (Roskilde, Denmark) from 4-7 November, under the chairmanship of J~1rgen N~rrevang Jensen who opened the Workshop and welcomed participants. Danny Eibye-Jacobsen made a short presentation on practical issues of the Workshop. Taxonomie experts from the Zoological Museum ofCopenhagen acted as Iecturers. Twenty people (the maximum number) participated in the Workshop. The names and addresses of Workshop participants are listed in Annex I. 2 TERMS OF REFERENCE The terms of reference for the ICESIHELCOM Benthos Taxonomie Worksho{? were to: leES C.Res.1996/3:4 • a) identify benthie invertebrate species over which there is taxonomie disagreement and find a common identification; b) review rriäterial brought together by researchers and research assistants that has created taxonomie problems and determine ways to obtain a correct identification; e) review the development of 'in-house quality assurance manuals' for benthos studies; d) prepare the materials resulting from this Workshop as a laboratory report for publication. 3 PROGRAl\1~1E FOR THE WORKSHOP The Workshop was a mixture of lectures on special taxonomie groups and exercises in species identification. In general, the Agenda for the Workshop, as presented in Annex 2, was followed. 3.1 Phyllodocidae The first lecture on the polychaete family Phyllodocidae was given by Danny Eibye-Jacobsen, who started with an overview of the morphological features which are important for distinguishing the different species. A list of these are found in Annex 3. After the lecture, participants could examine preserved specimens ofthis family. 3.2 Nephtyidae, Nereidae, and Polynoidae A lecture on the Nephtyidae, Nereidae, and Polynoidae families was also given by Danny Eibye-Jacobsen. The characteristic morphological features were presented and Rainer (1991) was recommended for use as the key for the genus Neptlzys. A selective list of references for Polychaeta from the Kattegat and the Baltie Sea are given in Annex 4. The lecture was followed by a practical session on preserved specimens. 3.3 Porife ra ale Tendal gave a lecture on the phylum Porifera. An overview of the taxonomie problems with sponges was given as weil as a key to the speeies of sponges found in the Baltie Sea. The presentation by ale Tendal appears in Annex 5. The lecture was followed by a practical session on preserved specimens. 1998 WKBT Report 3.4 Sampling Techniques and Preservation Practices A diseussion on sampling teehniques, preservation praetices, and interaetions between monitoring units and zoologieal museums were on the programme. A range of sampling gear (Van Veen, HAPS, Smith-McIntyre) is apparently used in the Kattegat/Belt Sea area. It was reeommended that sampling follow the ICES guidelines for soft bottom maerofauna (Rumohr, 1990). Problems with sampling epifauna as weIl as the more searee infauna were diseussed. It was reeommended to use a dredge to supplement the traditional infauna sampling, although this gear is normally not quantitative. It was noted that a quantitative dredge has been developed in Holland (Bergman and Santbrink, 1994). Different fixation teehniques were diseussed. Although fixation in formaldehyde is generaIly reeommended in the HELCOM and ICES guidelines, preservation in ethanol is preferred by several counties in Denmark for health reasons. However, the Zoologieal Museum in Copcnhagen wiIl only aceept material that has been fixed in formaldehyde. The aspeet of quality assuranee (QA) was diseussed. Several laboratories have already practieed resorting 10-20 % of the sampies for quality assuranee purposes. This practice is recommended. The eoIlection of referenee-speeimens was reeommended. It was further suggested that the Zoological Museum should make a list of rare speeies (with synonyms) for the internet. The use of denaturated ethanol as a preservative is not recommended for health reasons if the sampies are to be used for histological purposes after preservation. The use of Rose Bengal as a coloration dye is not recommended as it may make • the identifieation of some species difficult. It was generally agreed that identification only to the genus level is preferred to an incorrect species name. 3.5 Pholoidae, Cirratulidae, and Ampharetidae A lecture on the families Pholoidae, Cirratulidae, and Ampharetidae was given by Mary E. Petersen. Taxonomie problems within these families were presented as weIl as keys for identifying species. These keys are attached as Annex 6. The lecture was followed by a practical session on preserved specimens. 3.6 Gastropoda: 1I)"drobia, and Potamopyrgos A lecture of the genera llydrobia and Potamopyrgos was presented by Bent Muus. An overview of the taxonomie and ecological aspeets of these genera was given. Copies of drawings of these speeies are attached as Annex 7. The leeture was foIlowed by a practical session on preserved speeimens. 3.7 Gastropoda: Tectibranch Opistobranchia ., A lecture on Tectibranch Opistobranchia was given by Tom Schi~dte. The taxonomie problems in this group were presented. A taxonomie scheme of the group is attached as Annex 8. The lecture was followed by a praetical session on prcserved specimens. 3.8 ßivah'ia: The Cardium-complex A leeture on the Cardium-eomplex was given by Gotfred H~'pner Petersen. The taxonomie problems of this group were presented, foIlowed by a praetical session on preserved speeimens. 3.9 Polychaeta: Spionidae and Flabelligeridae A lecture on Spionidae and FlabeIligeridae was given by Dannny Eibye-Jacobsen, including an overview of the morphologieal features which is important for the distinetion of the different speeies. A list of morphological features are found in Annex 9. The leeture was followed by a practical session on preserved specimens. 2 1998 WKBT Report 3.10 Amphipoda A lecture on Amphipoda was given by Teunis Jansen who gave an overview of taxonomie features, which is a problem for this genus. The lecture was followed by a praetical session on preserved speeimens. 3.11 Feedback and General Discussion on Future Workshops J0rgen N0rrevang Jensen introdueed the diseussion on the evaluation of the Workshop and suggestions for future workshops. Several partieipants expressed that the idea behind taxonomie workshops is good. Several suggestions to improve the quality of future workshops were given. Suggestions included: workshops should coneentrate on speeific phyla, families, or genera in order to have more time for detailed studies; speeimens of problematic genera/species should be distributed in order to insure a correct identification; partieipants should be encouraged to bring their own materials to future workshops; programmes should be sent in advanee announcing the topies and leetures on the different groups; regional/national workshops should be held every second year, alternating with international workshops held during off years; • participation in taxonomie workshops should be optional for institutes collecting monitoring data in the OSPAR area. 3.12 Closing ofthe Workshop The Chairman thanked the staff of the Zoological Museum for their engaged teaehing and for arranging a very fruitful Workshop. The partieipants were acknowledged for their active participation and positive attitude. The Workshop was adjoumed. 4 REFERENCES Bergman, M.J.N.,
Load more

Recommended publications
  • How to Cite Complete Issue More Information About This
    Revista de Biología Tropical ISSN: 0034-7744 ISSN: 0034-7744 Universidad de Costa Rica Elías, Rodolfo; Saracho-Bottero, María-Andrea; Simon, Carol-Anne Protocirrineris (Polychaeta:Cirratulidae) in South Africa and description of two new species Revista de Biología Tropical, vol. 67, no. 5, 2019, pp. 70-80 Universidad de Costa Rica DOI: DOI 10.15517/RBT.V67IS5.38931 Available in: http://www.redalyc.org/articulo.oa?id=44965909006 How to cite Complete issue Scientific Information System Redalyc More information about this article Network of Scientific Journals from Latin America and the Caribbean, Spain and Journal's webpage in redalyc.org Portugal Project academic non-profit, developed under the open access initiative DOI 10.15517/RBT.V67IS5.38931 Artículo Protocirrineris (Polychaeta:Cirratulidae) in South Africa and description of two new species Protocirrineris (Cirratulidae: Polychaeta) en Sudáfrica y la descripción de dos nuevas especies Rodolfo Elías1 María Andrea Saracho-Bottero1 Carol Anne Simon2 1 Universidad Nacional de Mar del Plata - Instituto de Investigaciones Marinas y Costeras, CONICET-UNMdP, Argentina, [email protected], [email protected] 2 Department of Botany and Zoology. Stellenbosch University, South Africa, [email protected] Received 22-X-2018 Corrected 22-II-2019 Accepted 30-VI-2019 Abstract Introduction: The knowledge of polychaetes in the subtropical region of Africa benefited from the activity of J. Day. However, 50 years after the publication of his Monograph of the Polychaeta of southern Africa, it is necessary to reconsider the identity of the Cirratulidae due to changes in the diagnostic characters and new approaches to the taxonomy of the group to corroborate the status of cosmopolitan species in this region.
    [Show full text]
  • Phylogenetics of Acrocirridae and Flabelligeridae (Cirratuliformia, Annelida)
    Zoologica Scripta Phylogenetics of Acrocirridae and Flabelligeridae (Cirratuliformia, Annelida) KAREN J. OSBORN &GREG W. ROUSE Submitted: 26 July 2010 Osborn, K. J. & Rouse, G. W. (2010). Phylogenetics of Acrocirridae and Flabelligeridae Accepted: 5 October 2010 (Cirratuliformia, Annelida). — Zoologica Scripta, 40, 204–219. doi:10.1111/j.1463-6409.2010.00460.x When seven deep-sea, swimming cirratuliforms were recently discovered, the need for a thorough phylogenetic hypothesis for Cirratuliformia was clear. Here, we provide a robust phylogenetic hypothesis for the relationships within Acrocirridae and increase the taxon sampling and resolution within Flabelligeridae based on both molecular (18S, 28S, 16S, COI and CytB) and morphological data. Data partitions were analyzed separately and in combination. Acrocirridae and Flabelligeridae were reciprocally monophyletic sister groups when rooted by cirratulids. The seven recently discovered species form a clade within Acrocirridae and will be designated as four genera based on phylogenetic relationships and apomorphies. A revised diagnosis is provided for Swima, restricting the genus to three spe- cies distinguished by a thick gelatinous sheath, transparent body, simple nuchal organs, a single medial subulate branchia, and four pair of small segmental branchiae modified as elliptical, bioluminescent sacs. Helmetophorus and Chauvinelia are maintained as separate genera based on morphological differences. Evidence for flabelligerid branchiae being seg- mental is provided, the papillae on segment two of most acrocirrids is confirmed to be the nephridiopores, and scanning electron microscopy is used to examine acrocirrid spinous chaetae in comparison with flabelligerid segmented chaetae. Corresponding author: Karen J. Osborn, Institute of Marine Science, University of California, Santa Cruz, Earth & Marine Sciences Building, 1156 High Street, Santa Cruz, CA 95064, USA.
    [Show full text]
  • Sperm Morphology and Spermatogenesis in the Tube-Worm Pomatoleios Krassii (Polychaeta: Spirobranchinae) from the Suez Bay, Egypt
    Egypt. J. Aquat. Biol. & Fish., Vol. 10, No.4: 1 – 20 (2006) ISSN 1110 – 6131 SPERM MORPHOLOGY AND SPERMATOGENESIS IN THE TUBE-WORM POMATOLEIOS KRASSII (POLYCHAETA: SPIROBRANCHINAE) FROM THE SUEZ BAY, EGYPT. Mohamed S. Barbary Zoology Department, Faculty of Science, Zagazig University Key words: sperm morphology, spermatogenesis, tube worm, Pomatoleios, Suez Bay. ABSTRACT he mature sperm morphology and spermatogenesis ultrastructure T have been fully described in Pomatoleios krassii, which is a spirobranchian polychoaete attached to rocks, wrecked boats, rods and hard substrates at some polluted sites on Suez Bay coast. Sperms develop in the coelom as free-floating plasmodial cells. At the end of spermatogenesis, mature sperms float freely in the coelom. The spermatogonia are relatively large in size (13 µ in diameter). The spermatozoon of the present species differs from that of other polychaete species by having a large head (6 µ in length) formed of rounded nucleus and large acrosome which forms a large curved terminal cap on the nucleus. This may be an indication that fertilization occurs by some mechanisms that limit exposure of such fragile gametes to any possiple pollution. Meanwhile, female of P.kraussii protects its eggs with a jelly mass attached to the branchial crown, and the sperm is required to penetrate the matrix of egg mass. The large pair of mitochondria (2 µ in diameter) and presence of two pairs of proximal and distal centrioles which are not recorded so for in previous studies, as well as the long tail may be correlated with a characteristic movement of the sperm to reach female branchial crown, where the egg masses are found.
    [Show full text]
  • Department of Water Resources Engineering
    International Summer Water Resources Research School Dept. of Water Resources Engineering, Lund University Ecological Function of Polychaete Animals in Xiamen Intertidal Zone and Mangrove Areas By Ida Arvidsson 2014 Ecological Function of Polychaete Animals in Xiamen Intertidal Zone Lingfeng SRS 2014 Abstract Polychaeta is a class of annelid worms and is one of the most abundant groups of benthic animals in marine environments. Since polychaetes are a crucial, basic part of marine food webs, their ecological function and contribution to marine ecosystems are of significant importance for the ecosystem services from these environments, e.g. the fishing industry. This study investigates the abundance and ecological function of polychaetes in different ecosystems. Sampling locations are the intertidal area of Huangcuo (sandy beach and rocky shore), Xiatanwei mangrove plantation and the inner lake of Yundang Lagoon, in or close to Xiamen, Fujian province. A total of 20 species of polychaetes were found, with a great majority found in the Xiatanwei mangrove area. By studying the head structure of the polychaetes in the samples, the food type of each species can be predicted. From the food types of all present polychaetes, the polychaetes contribution to the food web of the sampling location can be estimated. The small number of species found at some of the sampling locations together with too little information about the food webs make it hard to draw any conclusions about the significance of polychaetes at the studied locations. Keywords: Polychaetes, Ecological Function, Intertidal zone, Mangrove, Xiamen Student sponsored by: Ida Arvidsson 20142014-08-28 2 Ecological Function of Polychaete Animals in Xiamen Intertidal Zone Lingfeng SRS 2014 Table of Contents 1 Preface ...............................................................................................................................
    [Show full text]
  • Redalyc.POLIQUETOS BENTÓNICOS DE LOS FIORDOS MAGALLÁNICOS DESDE EL SENO RELONCAVÍ HASTA EL GOLFO CORCOVADO
    See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/50285797 POLIQUETOS BENTÓNICOS DE LOS FIORDOS MAGALLÁNICOS DESDE EL SENO RELONCAVÍ HASTA EL GOLFO CORCOVADO (CHILE) Article · January 2009 Source: DOAJ CITATIONS READS 2 144 5 authors, including: Nicolas Rozbaczylo Rodrigo A. Moreno Pontifical Catholic University of Chile University Santo Tomás (Chile) 76 PUBLICATIONS 709 CITATIONS 45 PUBLICATIONS 346 CITATIONS SEE PROFILE SEE PROFILE Roger D. Sepúlveda Universidad Austral de Chile 37 PUBLICATIONS 312 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: El Paisaje post-desastre en ambientes tsunamicos / The Post-disaster Landscape in tsunami-prone environmemts View project Poliquetos de Sudamérica View project All content following this page was uploaded by Roger D. Sepúlveda on 31 May 2014. The user has requested enhancement of the downloaded file. Redalyc Sistema de Información Científica Red de Revistas Científicas de América Latina, el Caribe, España y Portugal ROZBACZYLO, NICOLÁS; MORENO, RODRIGO A.; SEPÚLVEDA, ROGER D.; CARRASCO, FRANKLIN D.; MARISCAL, JOSEFINA POLIQUETOS BENTÓNICOS DE LOS FIORDOS MAGALLÁNICOS DESDE EL SENO RELONCAVÍ HASTA EL GOLFO CORCOVADO (CHILE) Ciencia y Tecnología del Mar, vol. 32, núm. 2, 2009, pp. 101-112 Comité Oceanográfico Nacional Valparaíso, Chile Disponible en: http://redalyc.uaemex.mx/src/inicio/ArtPdfRed.jsp?iCve=62416056005 Ciencia y Tecnología del Mar ISSN (Versión impresa): 0716-2006 [email protected] Comité Oceanográfico Nacional Chile ¿Cómo citar? Número completo Más información del artículo Página de la revista www.redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto Cienc.
    [Show full text]
  • Marcos André Machado Lima Teixeira Lançamento De Uma Biblioteca De Referência De DNA Barcodes Para Poliquetas De Estuários D
    Marcos André Machado Lima Teixeira Lançamento de uma biblioteca de referência de DNA barcodes para poliquetas de estuários de Portugal e do mar profundo da Peninsula Ibérica Tese de Mestrado Mestrado em Ecologia Trabalho realizado sob a supervisão do Professor Doutor Filipe Costa Trabalho realizado sob a orientação da Doutora Ascensão Ravara Outubro de 2013 DECLARAÇÃO Nome: Marcos André Machado Lima Teixeira Endereço eléctrónico: [email protected] Telefone: 917974620 Número do Bilhete de Identidade: 13243951 Título da Tese: Lançamento de uma biblioteca de referência de DNA barcodes para poliquetas de estuários de Portugal e do mar profundo da Peninsula Ibérica Orientador(es): Doutor Filipe Costa e Doutora Ascensão Ravara Ano de Conclusão: 2013 Designação do Mestrado: Mestrado em Ecologia De acordo com a legislação em vigor, não é permitida a reprodução de qualquer parte desta tese Universidade do Minho, ___/___/______ Assinatura: ________________________________________________ Agradecimentos Um agradecimento especial ao meu orientador, Doutor Filipe Oliveira Costa, não só pela oportunidade de realização de uma tese de mestrado dentro da temática do DNA barcoding, uma área que desde que me foi apresentada me despertou um enorme interesse, entusiasmo e motivação para aplicar todo o meu poder de trabalho, mas também pela paciência, companheirismo, disponibilização, apoio e conhecimento transmitidos ultimando na realização desta tese. Aos meus co-orientadores Sara Ferreira e Jorge Lobo por me ensinarem como trabalhar corretamente num laboratório, pela amizade e apoio demonstrado. Nunca esquecerei a ajuda prestada no meu primeiro passo para a vida profissional e espero que no futuro, possamos voltar a trabalhar juntos. À Doutora Ascensão Ravara por toda a disponibilidade e dedicação na passagem de conhecimento sobre a taxonomia de poliquetas.
    [Show full text]
  • Revision of Cirratulus (Cirratulidae: Polychaeta) from Argentina, with the Description of Three New Species and a Key to Identify All Species of the Area
    Revision of Cirratulus (Cirratulidae: Polychaeta) from Argentina, with the description of three new species and a key to identify all species of the area M. Andrea Saracho-Bottero1, M. Lourdes Jaubet1, Griselda V. Garaffo1 & Rodolfo Elías1 1. Instituto de Investigaciones Marinas y Costeras, (IIMYC), Facultad de Ciencias Exactas y Naturales (FCEYN), Universidad Nacional de Mar del Plata (UNMdP)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). CC1260. 7600 Mar del Plata, Argentina, [email protected] Recibido 03-XII-2018. Corregido 25-V-2019. Accepted 30-VI-2019. ABSTRACT. Introduction: The taxonomy of Cirratulidae is not easy due to the diagnostic characters currently accepted change through ontogeny, in some cases, there are even difficulties to separate juveniles from adults. Among the Cirratulus species cited, described and considered as valid for Argentina are Cirratulus jucundus (Kinberg, 1866), Cirratulus patagonicus (Kinberg, 1866) and Cirratulus mianzanii Saracho Bottero, Elías & Magalhães, 2017. Objetive: This study made a revision of Cirratulus includes material deposited in the Museo de Ciencias Naturales de La Plata (MLP) and specimens collected privately by J.M. Orensanz that was donated to the laboratory of Bioindicadores Bentónicos of the National University of Mar del Plata. Methods: The specimens were examined with optical equipment (microscope and stereomicroscope) and also by a scanning electron microscope (SEM). Results: A complete examination of the material, revealed a higher number of spe- cies than those already mentioned. In the present work, three new species are described from the intertidal and subtidal areas of the Argentine continental shelf: Cirratulus orensanzii n. sp.; Cirratulus knipovichana n. sp. and Cirratulus alfonsinae n.
    [Show full text]
  • Timarete Posteria, a New Cirratulid Species from Korea (Annelida, Polychaeta, Cirratulidae)
    A peer-reviewed open-access journal ZooKeys 806: 1–15 (2018) A new Timarete species from Korea 1 doi: 10.3897/zookeys.806.27436 RESEARCH ARTICLE http://zookeys.pensoft.net Launched to accelerate biodiversity research Timarete posteria, a new cirratulid species from Korea (Annelida, Polychaeta, Cirratulidae) Hyun Ki Choi1, Hana Kim1, Seong Myeong Yoon2 1 National Marine Biodiversity Institute of Korea, Seocheon, Chungcheongnam-do 33662, Korea 2 Department of Biology, College of Natural Sciences, Chosun University, Gwangju 61452, Korea Corresponding author: Seong Myeong Yoon ([email protected]) Academic editor: G. Rouse | Received 14 June 2018 | Accepted 28 October 2018 | Published 13 December 2018 http://zoobank.org/C2B05C47-2CE5-4F8F-9462-2C7C1E61D3E1 Citation: Choi HK, Kim H, Yoon SM (2018) Timarete posteria, a new cirratulid species from Korea (Annelida, Polychaeta, Cirratulidae). ZooKeys 806: 1–15. https://doi.org/10.3897/zookeys.806.27436 Abstract A new cirratulid species, Timarete posteria sp. n., is described from the intertidal habitats of the east- ern coast of South Korea. The new species is closely related toTimarete luxuriosa (Moore, 1904) from southern California based on morphological similarity of the branchial and tentacular filaments and the noto- and neuropodial spines. However, T. posteria sp. n. differs from the latter based on the following characteristics: 1) evenly divided peristomium into three annulations; 2) 2–4 neuropodial spines originat- ing in the posterior chaetigers alternated by a few capillaries; and 3) complete shift in branchial filaments located about one-third between the notopodium and the dorsal midline. The new species has a methyl green staining pattern (MGSP) distinct from other Timarete species.
    [Show full text]
  • Main Ecological Features of Benthic Macrofauna in Mediterranean and Atlantic Intertidal Eelgrass Beds: a Comparative Study
    Main Ecological Features of Benthic Macrofauna in Mediterranean and Atlantic Intertidal Eelgrass Beds: A Comparative Study Nawfel Mosbahi, Hugues Blanchet, Nicolas Lavesque, Xavier de Montaudouin, Jean-Claude Dauvin, Lassad Neifar To cite this version: Nawfel Mosbahi, Hugues Blanchet, Nicolas Lavesque, Xavier de Montaudouin, Jean-Claude Dauvin, et al.. Main Ecological Features of Benthic Macrofauna in Mediterranean and Atlantic Intertidal Eelgrass Beds: A Comparative Study. Journal of Marine Biology & Oceanography, SciTechnol, 2017, 6 (2), pp.100174. 10.4172/2324-8661.1000174. hal-02060483 HAL Id: hal-02060483 https://hal-normandie-univ.archives-ouvertes.fr/hal-02060483 Submitted on 7 Mar 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Mosbahi et al., J Mar Biol Oceanogr 2017, 6:2 DOI: 10.4172/2324-8661.1000174 Journal of Marine Biology & Oceanography Research Article a SciTechnol journal Introduction Main Ecological Features Sheltered and semi-sheltered coastal ecosystems rank among the of Benthic Macrofauna in most productive and important aquatic ecosystems on Earth [1,2]. These complex environments fulfil several vital functions which play Mediterranean and Atlantic a key role in controlling biodiversity, such as nursery and feeding areas for fish and birds [3,4].
    [Show full text]
  • Distribution of Soft-Bottom Polychaetes Assemblages at Different Scales in Shallow Waters of the Northern Mediterranean Spanish Coast
    DISTRIBUTION OF SOFT-BOTTOM POLYCHAETES ASSEMBLAGES AT DIFFERENT SCALES IN SHALLOW WATERS OF THE NORTHERN MEDITERRANEAN SPANISH COAST Letzi Graciela Serrano Samaniego Rafael Sardá Borroy Barcelona, June 2012 DISTRIBUTION OF SOFT-BOTTOM POLYCHAETES ASSEMBLAGES AT DIFFERENT SCALES IN SHALLOW WATERS OF THE NORTHERN MEDITERRANEAN SPANISH COAST Doctorate dissertation To obtain the Doctoral Degree in Marine Sciences Marine Sciences Doctoral Program UPC-UB-CSIC Developed in the Marine Engineering Laboratory (Laboratori d'Enginyeria Marítima, LIM/UPC) and in the Center for Advance Studies of Blanes (Centre d’Estudis Avançats de Blanes-CEAB) By Letzi Graciela Serrano Samaniego Dissertation supervisor: Rafael Sardá Borroy, CEAB-CSIC June 2012 Barcelona, Spain To my dear family: My dearly husband: Carlos I love you. My beloved kids Carlos Letzy Yenia Kelsy DISTRIBUTION OF SOFT-BOTTOM POLYCHAETES ASSEMBLAGES AT DIFFERENT SCALES IN SHALLOW WATERS OF THE NORTHERN MEDITERRANEAN SPANISH COAST TABLE OF CONTENTS Acknowledgements ......................................................................................................... ix Summary ......................................................................................................................... 11 Introduction .................................................................................................................... 12 Polychaetes as a zoological model ................................................................................. 12 Common generalities about Polychaetes
    [Show full text]
  • The Importance of a Functional Approach on Benthic Communities for Aquaculture Environmental Assessment: Trophic Groups – a Polychaete View
    Marine Pollution Bulletin 167 (2021) 112309 Contents lists available at ScienceDirect Marine Pollution Bulletin journal homepage: www.elsevier.com/locate/marpolbul The importance of a functional approach on benthic communities for aquaculture environmental assessment: Trophic groups – A polychaete view Carlos Sanchis a,c, Eulogio H. Soto a,*, Eduardo Quiroga b a Centro de Observacion´ Marino para Estudios de Riesgos del Ambiente Costero (COSTAR), Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Vina~ del Mar, Chile b Escuela de Ciencias del Mar, Pontificia Universidad Catolica´ de Valparaíso, Valparaíso, Chile c Programa de Magíster en Oceanografía, Universidad de Valparaíso, Chile ARTICLE INFO ABSTRACT Keywords: Polychaetes were studied to assess the effect of aquaculture activity on the seafloor. Very high biodiversity of Chilean Patagonia species was recorded associated with aquaculture centres with Cirratulidae, Spionidae and Paraonidae families Aquaculture being the most diverse and abundant families. The spatial distribution of polychaete trophic groups was the best Seabed pollution descriptor for detecting changes on the benthos. Surface and subsurface deposit-feeding species dominated the Feeding modes sites closest to the rafts cages, highlighting Capitella capitata and Cirratulus cirratus as opportunistic species. While Capitella capitata Cirratulus cirratus replacement and species succession were observed with increasing presence of carnivores and omnivores in sites further away from the salmon cages and experiencing less impact. Analyses based on the distance of feeding modes and ecological groups from the disturbance source were better indicators of the impact that the traditional community approach or sediment biogeochemistry. Therefore, functional traits studies should always be considered on environmental assessments of benthic systems impacted by aquaculture.
    [Show full text]
  • How to Cite Complete Issue More Information About This Article Journal's Webpage in Redalyc.Org Scientific Information System Re
    Revista de Biología Tropical ISSN: 0034-7744 ISSN: 0034-7744 Universidad de Costa Rica Saracho-Bottero, M.-Andrea; Jaubet, M.-Lourdes; Garaffo, Griselda-V.; Elías, Rodolfo Revision of Cirratulus (Cirratulidae: Polychaeta) from Argentina, with the description of three new species and a key to identify all species of the area Revista de Biología Tropical, vol. 67, no. 5, 2019, pp. 169-182 Universidad de Costa Rica DOI: DOI 10.15517/RBT.V67IS5.38942 Available in: http://www.redalyc.org/articulo.oa?id=44965909014 How to cite Complete issue Scientific Information System Redalyc More information about this article Network of Scientific Journals from Latin America and the Caribbean, Spain and Journal's webpage in redalyc.org Portugal Project academic non-profit, developed under the open access initiative DOI 10.15517/RBT.V67IS5.38942 Artículo Revision of Cirratulus (Cirratulidae: Polychaeta) from Argentina, with the description of three new species and a key to identify all species of the area Revisión de Cirratulus (Cirratulidae: Polychaeta) de Argentina, con la descripción de tres nuevas especies y una clave para identificar todas las especies del área M.-Andrea Saracho-Bottero1 M.-Lourdes Jaubet1 Griselda-V. Garaffo1 Rodolfo Elías1 1 Instituto de Investigaciones Marinas y Costeras, (IIMYC), Facultad de Ciencias Exactas y Naturales (FCEYN), Universidad Nacional de Mar del Plata (UNMdP)- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). CC1260. 7600 Mar del Plata, Argentina, [email protected] Recibido 03-XII-2018 Corregido 25-V-2019 Accepted 30-VI-2019 Abstract Introduction: The taxonomy of Cirratulidae is not easy due to the diagnostic characters currently accepted change through ontogeny, in some cases, there are even difficulties to separate juveniles from adults.
    [Show full text]