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Effect of Saltmarsh Cordgrass, Spartina Alterniflora, Invasion Stage
Pakistan J. Zool., vol. 47(1), pp. 141-146, 2015. Effect of Saltmarsh Cordgrass, Spartina alterniflora, Invasion Stage on Cerithidea cingulata (Caenogastropoda: Potamididae) Distribution: A Case Study from a Tidal Flat of Western Pacific Ocean, China Bao-Ming Ge,1, 2* Dai-Zhen Zhang,1 Yi-Xin Bao,2 Jun Cui,1 Bo-Ping Tang,1 and Zhi-Yuan Hu2 1Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, Kaifang Avenue 50, Yancheng, Jiangsu 224051, P. R. China 2Institute of Ecology, Zhejiang Normal University, Yingbin Avenue 688, Jinhua, Zhejiang 321004, P. R. China Abstract.- The effect of saltmarsh cordgrass, Spartina alterniflora (Poales: Poaceae) invasion stage on Cerithidea cingulata (Caenogastropoda: Potamididae) distribution was studied in 2007 at the eastern tidal flat of Lingkun Island, Wenzhou Bay, China. The distribution pattern of C. cingulata was aggregated during each season, as shown in experiments utilizing Taylor's power regression and Iowa's patchiness regression methods (P < 0.001). Two- way ANOVA indicated that densities were significantly affected by S. alterniflora invasion stage (P < 0.001), however, no significant season effect was found (P = 0.090) and on the interaction between the seasons (P = 0.939). The density distribution during the invasion stage was significantly different in each season as shown in one-way ANOVA. Pearson’s correlation coefficient analysis of density data indicated that the highest densities occurred in habitats at the initial invasion stage during summer. The peak in C. cingulata density during spring, autumn and winter occurred in habitats where invasion was classified as initial, whereas the lowest densities occurred in the stage of invasion completed during each season. -
When the Venerid Clam Tapes Decussatus Is Parasitized by the Protozoan Perkinsus Sp
DISEASES OF AQUATIC ORGANISMS Published August 15 Dis Aquat Org When the venerid clam Tapes decussatus is parasitized by the protozoan Perkinsus sp. it synthesizes a defensive polypeptide that is closely related to p225 Juan F. Montes, Merce Durfort, Jose Garcia-Valero* Departament de Biologia Cel-lular Animal i Vegetal, Facultat de Biologia. Universitat de Barcelona, Avda. Diagonal, 647, E-08028 Barcelona. Spain ABSTRACT: Molluscs, like other invertebrates, have primitive defense systems. These are based on chemotaxis, recognition and facultative phagocytosis of foreign elements. Previously, we have described one of these systems: a cellular reaction involving infiltrated granulocytes against Perkinsus sp. parasitizing the Manila clam Tapes semidecussatus, in which the parasites are encapsulated by a defensive host product, the polypeptide p225. The aim of this study is to determine the similarities between the defense mechanisms of 2 venerid clams, T semidecussatus and T. decussatus, when they are infected by Perkinsus sp. The hemocytes of both species infiltrate the connective tissue, redifferen- tiate, and ultimately, express and secrete the polypeptide which constitutes the main product of the capsule that surrounds the parasites. The main secretion product of T. decussatus shows a high degree of homology to that of T semidecussatus, since it has a similar electrophoretic mobility and the polypeptide is recognized by the polyclonal serum against p225 from T. semidecussatus, as confirmed by Western blotting and immunocytochemistry. In conclusion, we demonstrate the existence of 2 polypeptides that are closely related at the molecular and functional level, and are specific in the defense of some molluscs against infection by these protozoan parasites. -
The Recent Molluscan Marine Fauna of the Islas Galápagos
THE FESTIVUS ISSN 0738-9388 A publication of the San Diego Shell Club Volume XXIX December 4, 1997 Supplement The Recent Molluscan Marine Fauna of the Islas Galapagos Kirstie L. Kaiser Vol. XXIX: Supplement THE FESTIVUS Page i THE RECENT MOLLUSCAN MARINE FAUNA OF THE ISLAS GALApAGOS KIRSTIE L. KAISER Museum Associate, Los Angeles County Museum of Natural History, Los Angeles, California 90007, USA 4 December 1997 SiL jo Cover: Adapted from a painting by John Chancellor - H.M.S. Beagle in the Galapagos. “This reproduction is gifi from a Fine Art Limited Edition published by Alexander Gallery Publications Limited, Bristol, England.” Anon, QU Lf a - ‘S” / ^ ^ 1 Vol. XXIX Supplement THE FESTIVUS Page iii TABLE OF CONTENTS INTRODUCTION 1 MATERIALS AND METHODS 1 DISCUSSION 2 RESULTS 2 Table 1: Deep-Water Species 3 Table 2: Additions to the verified species list of Finet (1994b) 4 Table 3: Species listed as endemic by Finet (1994b) which are no longer restricted to the Galapagos .... 6 Table 4: Summary of annotated checklist of Galapagan mollusks 6 ACKNOWLEDGMENTS 6 LITERATURE CITED 7 APPENDIX 1: ANNOTATED CHECKLIST OF GALAPAGAN MOLLUSKS 17 APPENDIX 2: REJECTED SPECIES 47 INDEX TO TAXA 57 Vol. XXIX: Supplement THE FESTIVUS Page 1 THE RECENT MOLLUSCAN MARINE EAUNA OE THE ISLAS GALAPAGOS KIRSTIE L. KAISER' Museum Associate, Los Angeles County Museum of Natural History, Los Angeles, California 90007, USA Introduction marine mollusks (Appendix 2). The first list includes The marine mollusks of the Galapagos are of additional earlier citations, recent reported citings, interest to those who study eastern Pacific mollusks, taxonomic changes and confirmations of 31 species particularly because the Archipelago is far enough from previously listed as doubtful. -
Boccardia Proboscidea Class: Polychaeta, Sedentaria, Canalipalpata
Phylum: Annelida Boccardia proboscidea Class: Polychaeta, Sedentaria, Canalipalpata Order: Spionida, Spioniformia A burrowing spionid worm Family: Spionidae Taxonomy: Boccardia proboscidea’s senior Trunk: subjective synonym, Polydora californica Posterior: Pygidium is a round, flaring (Treadwell, 1914) and an un-typified name, disc with four unequal lobes where dorsal Spio californica (Fewkes, 1889) were both lobes are smaller (Fig. 4) (Hartman 1969). suppressed in 2012 by the International Parapodia: Biramous after first setiger. Commission on Zoological Nomenclature Podia on the first setiger are not lobed, small (ICZN, case 3520). The widely cited and and inconspicuous. The second setiger's used name, Boccardia proboscidea parapodial lobes become twice as large as (Hartman, 1940) was conserved (ICZN the first's, and continue to worm posterior. 2012). Setae (chaetae): All setae are simple and in- clude bunches of short, capillary spines to se- Description tiger six (except for modified setiger five) Size: Specimens up to 30–35 mm in length (Figs. 5a, b). A transverse row of and 1.5 mm in width, where length extends approximately eight neuropodial uncini with age (Hartman 1940). The illustrated (hooded hooks) with bifid (two-pronged) tips specimen has approximately 130 segments begins on setiger seven and continues to (Fig. 1). posterior end (Fig. 5e), with bunches of Color: Yellow-orange with red branchiae capillary setae below them (until setiger 11). and dusky areas around prostomium and Notosetae of setiger five are heavy, dark and parapodia (Hartman 1969). Sato-Okoshi arranged vertically in two rows of five with and Okoshi (1997) report black pigment fol- pairs of long, falcate spines (Fig. -
SCAMIT Newsletter Vol. 28 No. 5-6 2010 January-February/March-April
SOUTHERN CALIFORNIA ASSOCATION OF MARINE INVERTEBRATE TAXONOMISTS Jan/Feb/March/April, 2010 SCAMIT Newsletter Vol. 28, No. 5&6 Figure 1- Lirobittium sp shell (left) with “brood” attached (detail right) (tick marks = 1 mm); photo by K. Barwick This Issue 11 JANUARY 2010, B’08 CRUSTACEA, CSD ........................................................................................... 2 UPCOMING MEETINGS ............................................................................................................................. 2 25 JANUARY 2010, B’08 POLYCHAETA, NHMLAC ............................................................................... 4 8 FEBRUARY 2010, B’08 MOLLUSCA, CSD ............................................................................................ 5 17 FEBRUARY 2010, DNA BARCODING COLLOQUIUM, SCCWRP ................................................... 7 22 FEBRUARY 2010, POLYCHAETA, NHMLAC ..................................................................................... 8 8 MARCH 2010, B’08 CRUSTACEA, OCSD ............................................................................................ 10 16 MARCH 2010, SCAMIT TAXONOMIC DATABASE, SCCWRP ....................................................... 12 12 APRIL 2010, B’08 POLYCHAETES, CSD............................................................................................ 14 BIBLIOGRAPHY ........................................................................................................................................ 17 SCAMIT OFFICERS .................................................................................................................................. -
The 17Th International Colloquium on Amphipoda
Biodiversity Journal, 2017, 8 (2): 391–394 MONOGRAPH The 17th International Colloquium on Amphipoda Sabrina Lo Brutto1,2,*, Eugenia Schimmenti1 & Davide Iaciofano1 1Dept. STEBICEF, Section of Animal Biology, via Archirafi 18, Palermo, University of Palermo, Italy 2Museum of Zoology “Doderlein”, SIMUA, via Archirafi 16, University of Palermo, Italy *Corresponding author, email: [email protected] th th ABSTRACT The 17 International Colloquium on Amphipoda (17 ICA) has been organized by the University of Palermo (Sicily, Italy), and took place in Trapani, 4-7 September 2017. All the contributions have been published in the present monograph and include a wide range of topics. KEY WORDS International Colloquium on Amphipoda; ICA; Amphipoda. Received 30.04.2017; accepted 31.05.2017; printed 30.06.2017 Proceedings of the 17th International Colloquium on Amphipoda (17th ICA), September 4th-7th 2017, Trapani (Italy) The first International Colloquium on Amphi- Poland, Turkey, Norway, Brazil and Canada within poda was held in Verona in 1969, as a simple meet- the Scientific Committee: ing of specialists interested in the Systematics of Sabrina Lo Brutto (Coordinator) - University of Gammarus and Niphargus. Palermo, Italy Now, after 48 years, the Colloquium reached the Elvira De Matthaeis - University La Sapienza, 17th edition, held at the “Polo Territoriale della Italy Provincia di Trapani”, a site of the University of Felicita Scapini - University of Firenze, Italy Palermo, in Italy; and for the second time in Sicily Alberto Ugolini - University of Firenze, Italy (Lo Brutto et al., 2013). Maria Beatrice Scipione - Stazione Zoologica The Organizing and Scientific Committees were Anton Dohrn, Italy composed by people from different countries. -
Migratory Behaviour of the Mangrove Gastropod Cerithidea Decollata Under Unfamiliar Conditions
Journal of Experimental Marine Biology and Ecology 457 (2014) 236–240 Contents lists available at ScienceDirect Journal of Experimental Marine Biology and Ecology journal homepage: www.elsevier.com/locate/jembe Migratory behaviour of the mangrove gastropod Cerithidea decollata under unfamiliar conditions Anna Marta Lazzeri a, Nadia Bazihizina b, Pili K. Kingunge c, Alessia Lotti d, Veronica Pazzi d, Pier Lorenzo Tasselli e, Marco Vannini a,⁎, Sara Fratini a a Department of Biology, University of Florence, via Madonna del Piano 6, I-50019 Sesto Fiorentino, Italy b Department of Agrifood Production and Environmental Sciences, University of Florence, Piazzale delle Cascine, 18, 50144 Firenze, Italy c Kenyan Marine Fisheries Research Institute (KMFRI), P.O. Box 81651, Mombasa, Kenya d Department of Earth Sciences, University of Florence, via La Pira, 2, Firenze, Italy e Department of Physics, University of Florence, via Sansone 1, I-50019 Sesto Fiorentino, Italy article info abstract Article history: The mangrove gastropod Cerithidea decollata feeds on the ground at low tide and climbs trunks 2–3 h before the Received 1 April 2014 arrival of water, settling about 40 cm above the level that the incoming tide will reach at High Water (between 0, Received in revised form 26 April 2014 at Neap Tide, and 80 cm, at Spring Tide). Biological clocks can explain how snails can foresee the time of the in- Accepted 28 April 2014 coming tide, but local environmental signals that are able to inform the snails how high the incoming tide will be are likely to exist. To identify the nature of these possible signals, snails were translocated to three sites within the Keywords: – Gastropod behaviour Mida Creek (Kenya), 0.3 3 km away from the site of snail collection. -
Tingkat Pemanfaatan Siput Hisap (Cerithidea Obtusa) Di Muara Sei Jang Kota Tanjungpinang Kepulauan Riau
Tingkat Pemanfaatan Siput Hisap (Cerithidea obtusa) di muara Sei Jang Kota Tanjungpinang Kepulauan Riau. Jokei Mahasiswa Manajeman Sumberdaya Perairan, FIKP UMRAH, Diana Azizah Dosen Manajeman Sumberdaya Perairan, FIKP UMRAH, Susiana Dosen Manajeman Sumberdaya Perairan, FIKP UMRAH, ABSTRAK JOKEI, 2017. Tingkat Pemanfaatan Siput Hisap (Cerithidea obtusa) di muara Sei Jang Kota Tanjungpinang Kepulauan Riau. Jurusan Manajeman Sumberdaya Perairan, Fakultas Ilmu Kelautan dan Perikanan, Universitas Maritim Raja Ali Haji. Pembimbing oleh Diana Azizah S.Pi., M.Si dan Susiana S.Pi., M.Si. Tujuan dari penelitian ini adalah untuk mengetahui tingkat pemanfaatan siput hisap (Cerithidea obtusa) di perairan muara Sei Jang kelurahan Sei Jang kota Tanjungpinang. Penelitian ini dilakukan pada bulan Januari sampai bulan juli 2017. Pengambilan sampel siput hisap dengan menggunakan transek 2 x 2 m. Data Ekosistem mangrove di Sei Jang menggunakan data sekunder (dari penelitian sebelumnya). Mangrove yang ditemukan di Kelurahan Sei Jang merupakan vegetasi mangrove alami, dimana dibedakan atas 3 bagian yaitu Pohon, Anakan dan Semai. Potensi siput hisap (Cerithidea obtusa) pada lokasi penelitian di hutan mangrove Sei Jang Kelurahan Sei Jang dari nilai potensi yang di dapat adalah 10,5390 kg, nilai ini menunjukan bahwa potensi yang rendah. Rendahnya nilai kepadatan dan potensi siput hisap (Cerithidea obtusa) di hutan mangrove muara Sei Jang dari hasil penelitian diduga karena kandungan bahan organik substrat pada setiap titik stasiun penelitian masih rendah. Dan -
ESTRATEGIA DE DESOVE DE Chione Californiensis (Broderip, 1835) (Bivalvia: Veneridae) EN LA ENSENADA DE LA PAZ, B
INSTITUTO POLITECNICO NACIONAL CENTRO INTERDISCIPLINARIO DE CIENCIAS MARINAS ESTRATEGIA DE DESOVE DE Chione californiensis (Broderip, 1835) (Bivalvia: Veneridae) EN LA ENSENADA DE LA PAZ, B. C. S., MÉXICO Tesis Que para obtener el grado de MAESTRO EN CIENCIAS EN MANEJO DE RECURSOS MARINOS PRESENTA CARMEN ROSA TEJEDA CABRERA LA PAZ, B. C. S., MÉXICO DICIEMBRE DE 2017 INSTITUTO POLITÉCNICO NACIONAL SECRETARIA DE INVESTIGACiÓN Y POSGRADO ACTA DE REVISIÓN DE TESIS En la Ciudad de La Paz, B.C.S., siendo las 12:00 horas del día 29 del mes de Noviembre del 2017 se reunieron los miembros de la Comisión Revisora de Tesis designada por el Colegio de Profesores de Estudios de Posgrado e Investigación de ----------------CICIMAR para examinar la tesis titulada: "ESTRATEGIA DE DESOVE DE ehione californiensis (Broderip, 1835) (Bivalvia: Veneridae) EN LA ENSENADA DE LA PAZ, B.C.S., MÉXICO" Presentada por el alumno: TEJEDA CABRERA CARMEN ROSA Apellido paterno materno nombre(j=J-s)--.-----.---.------r------r------r------, Con reg istro: 1.-1_A--,-I_1---'-_6__-'--_1--'--__0 --'--__1----'__4-' Aspirante de: MAESTRIA EN CIENCIAS EN MANEJO DE RECURSOS MARINOS Después de intercambiar opiniones los miembros de la Comisión manifestaron APROBAR LA DEFENSA DE LA TESIS, en virtud de que satisface los requisitos señalados por las disposiciones reglamentarias vigentes. LA COMISION REVISORA Directores de Tesis DR. FEDERICO ANDRÉS GARdA DOMINGUEZ Director de Tesis D . ENRIQUE HIPARCO NAVASÁNCHEZ ~ ::::?-~~=~~ ------~~~=-------------------DR. RODOLFO RAMíREZ SEVILLA ROFESORES 1-------- INSTITUTO POLITÉCNICO NACIONAL SECRETARíA DE INVESTIGACiÓN Y POSGRADO CARTA CESiÓN DE DERECHOS En la Ciudad de -=-La~P=az:::<,-=B,",-.C=.S;:,,:.:!,,'_ el dia 06 del mes de Diciembre del año 2017 El (la) que suscribe BIÓL. -
Thelepus Crispus Class: Polychaeta, Sedentaria, Canalipalpata
Phylum: Annelida Thelepus crispus Class: Polychaeta, Sedentaria, Canalipalpata Order: Terebellida, Terebellomorpha A terebellid worm Family: Terebellidae, Theleponinae Description (Hartman 1969). Notosetae present from Size: Individuals range in size from 70–280 second branchial segment (third body mm in length (Hartman 1969). The greatest segment) and continue almost to the worm body width at segments 10–16 is 13 mm (88 posterior (to 14th segment from end in mature –147 segments). The dissected individual specimens) (Hutchings and Glasby 1986). All on which this description is based was 120 neurosetae short handled, avicular (bird-like) mm in length (from Coos Bay, Fig. 1). uncini, imbedded in a single row on oval- Color: Pinkish orange and cream with bright shaped tori (Figs. 3, 5) where the single row red branchiae, dark pink prostomium and curves into a hook, then a ring in latter gray tentacles and peristomium. segments (Fig. 3). Each uncinus bears a General Morphology: Worm rather stout thick, short fang surmounted by 4–5 small and cigar-shaped. teeth (Hartman 1969) (two in this specimen) Body: Two distinct body regions consisting (Fig. 4). Uncini begin on the fifth body of a broad thorax with neuro- and notopodia segment (third setiger), however, Johnson and a tapering abdomen with only neuropo- (1901) and Hartman (1969) have uncini dia. beginning on setiger two. Anterior: Prostomium reduced, with Eyes/Eyespots: None. ample dorsal flap transversely corrugated Anterior Appendages: Feeding tentacles are dorsally (Fig. 5). Peristomium with circlet of long (Fig. 1), filamentous, white and mucus strongly grooved, unbranched tentacles (Fig. covered. 5), which cannot be retracted fully (as in Am- Branchiae: Branchiae present (subfamily pharctidae). -
Spatial Variability in Recruitment of an Infaunal Bivalve
Spatial Variability in Recruitment of an Infaunal Bivalve: Experimental Effects of Predator Exclusion on the Softshell Clam (Mya arenaria L.) along Three Tidal Estuaries in Southern Maine, USA Author(s): Brian F. Beal, Chad R. Coffin, Sara F. Randall, Clint A. Goodenow Jr., Kyle E. Pepperman, Bennett W. Ellis, Cody B. Jourdet and George C. Protopopescu Source: Journal of Shellfish Research, 37(1):1-27. Published By: National Shellfisheries Association https://doi.org/10.2983/035.037.0101 URL: http://www.bioone.org/doi/full/10.2983/035.037.0101 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/page/terms_of_use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Journal of Shellfish Research, Vol. 37, No. 1, 1–27, 2018. SPATIAL VARIABILITY IN RECRUITMENT OF AN INFAUNAL BIVALVE: EXPERIMENTAL EFFECTS OF PREDATOR EXCLUSION ON THE SOFTSHELL CLAM (MYA ARENARIA L.) ALONG THREE TIDAL ESTUARIES IN SOUTHERN MAINE, USA 1,2 3 2 3 BRIAN F. -
Embryonic and Larval Development of Ensis Arcuatus (Jeffreys, 1865) (Bivalvia: Pharidae)
EMBRYONIC AND LARVAL DEVELOPMENT OF ENSIS ARCUATUS (JEFFREYS, 1865) (BIVALVIA: PHARIDAE) FIZ DA COSTA, SUSANA DARRIBA AND DOROTEA MARTI´NEZ-PATIN˜O Centro de Investigacio´ns Marin˜as, Consellerı´a de Pesca e Asuntos Marı´timos, Xunta de Galicia, Apdo. 94, 27700 Ribadeo, Lugo, Spain (Received 5 December 2006; accepted 19 November 2007) ABSTRACT The razor clam Ensis arcuatus (Jeffreys, 1865) is distributed from Norway to Spain and along the British coast, where it lives buried in sand in low intertidal and subtidal areas. This work is the first study to research the embryology and larval development of this species of razor clam, using light and scanning electron microscopy. A new method, consisting of changing water levels using tide simulations with brief Downloaded from https://academic.oup.com/mollus/article/74/2/103/1161011 by guest on 23 September 2021 dry periods, was developed to induce spawning in this species. The blastula was the first motile stage and in the gastrula stage the vitelline coat was lost. The shell field appeared in the late gastrula. The trocho- phore developed by about 19 h post-fertilization (hpf) (198C). At 30 hpf the D-shaped larva showed a developed digestive system consisting of a mouth, a foregut, a digestive gland followed by an intestine and an anus. Larvae spontaneously settled after 20 days at a length of 378 mm. INTRODUCTION following families: Mytilidae (Redfearn, Chanley & Chanley, 1986; Fuller & Lutz, 1989; Bellolio, Toledo & Dupre´, 1996; Ensis arcuatus (Jeffreys, 1865) is the most abundant species of Hanyu et al., 2001), Ostreidae (Le Pennec & Coatanea, 1985; Pharidae in Spain.