Patagonian Scallop (Zygochlamys Patagonica) Deep Ocean Fishery MSC Certification

Total Page:16

File Type:pdf, Size:1020Kb

Patagonian Scallop (Zygochlamys Patagonica) Deep Ocean Fishery MSC Certification Patagonian Scallop (Zygochlamys patagonica) Deep Ocean Fishery MSC Certification Certification Body: Organización Internacional Agropecuaria (OIA) Notification of Proposed Peer Reviewers Potential Peer Reviewers for reports on the Patagonian Scallop Fishery have been proposed. They have been approached on the basis of their experience of one or more of the following: the fishery under assessment, fishery management, stock assessment issues and relevant ecosystem interactions. The names and brief details of each reviewer are provided below. All stakeholder (including the applicant fishery) are now given the opportunity to submit written comments and/or objections to the scientists nominated as potential peer reviewers. Any specific objections should be supported with an explanation of the reason for the objection. Comments should be forwarded, before 14 October 2005, to Dr. Peter Pottinger, Organización Internacional Agropecuaria as follows: Email: [email protected] / [email protected] Address : Av. Santa Fe 830 – Acassuso – (B1641ABN) – Buenos Aires Organización Internacional Agropecuaria (OIA) Av. Santa Fé 830 – Acassuso - (B1641ABN) - Buenos Aires - Argentina Tel./Fax: (54-11) 4798-9084 / 4793-4340 E-mail: [email protected] / [email protected] – Web: www.oia.com.ar Dr. OSCAR IRIBARNE Departamento de Biología Birthdate: 29 Agosto 1957 Facultad de Ciencias Exactas y Naturales (FCEyN) Birthplace: San Antonio Oeste, RN Universidad Nacional de Mar del Plata (UNMDP) Citizenship: Argentina Postal address: CC 573 Correo Central, B7600WAG, ARGENTINA Tel. 54 0223 4671855/ cel 54 0223 154239837/8; [email protected]; http://www.mdp.edu.ar/exactas/biologia/grupos/estuarial/ecoest.htm Education: M.Sc. Fisheries (1987-1990) and Ph.D. Fisheries (1990-1994), School of Fisheries, University of Washington, USA. Research interest: Costal community ecology; Marsh/estuarine ecology; Food webs explored with stable isotopes; Ecosystem engineering by species; Ecological theory; Fisheries ecology; He has also being involved in research on the fisheries and ecology of the Tehuelche scallop Chlamys tehuelchus (1982-1988) and the Patagonian Scallop Zygochlamys patagonica (since 1997). Academic activities: 1989 - 1994. R.A., Crustacean Ecology Laboratory, School of Fisheries, University of Washington, USA; 1991. Consulting. United Nations Development Program (UNDP). Chile; 1995-present. Professor. Department of Biology, FCEyN, UNMDP, Argentina; 2002-present. Independent Researcher. National Council of Scientific Research and Technology (CONICET, Argentina); 2003-present. Director of the Graduate School, FCEyN, UNMDP. Board Membership: Scientific Adviser, International Foundation for Science (IFS) Sweden (2000-present); Jury for Fundacion Bunge y Born National Prize, Argentina (1999); Board Member: National Council of Research and Technology (CONICET) Argentina (1998-2000, 2003-2005), Commission of Scientific Research (CIC), Argentina (2000-2003). Estuaries (2001-present, Assistant Editor). Also consultant in coastal ecology to several organizations, agencies and towns in Argentina. Manuscript, book, and proposal reviewer to many journals, government agencies, private foundations, and panel member in various sections of CONICET and ANPCyT (Argentina). Graduate Students and Post Docs (as chair) Doctoral: J. Timi, A. Bortolus, F. Botto, E. Schwindt, G. Palomo, J. Gutierrez, P. Ribeiro; PostDocs: T. Luppi, C. Bas, J.P. Isacch, B. Lomovasky. In progress: Doctoral: P. Martinetto, M. Escapa, R. Mariano, P. Daleo, M. E. Fanjul, J. Alberti, M. Bruschetti, A. Mendez Casariego, D. Galvan, M. Valiñas; Post Docs: J. Gutierrez, P. Ribeiro, A. Canepuccia. Publications in journals More than 80 publication in indexed (ISI) journal such as Ecology, Marine Biology, Journal of Experimental Marine Biology and Ecology, Bulletin of Marine Sciences, Biological Invasions, Canadian Journal of Fish and Aquatic Sciences, Fisheries Research, Marine Ecology Progress Series, Estuarine Coastal and Shelf Sciences, Journal of Sea Research, Journal of Shellfish Research, Marine Pollution Bulletin, Estuaries, Journal of the Marine Biological Association (UK), Oecologia, Oikos. Book Chapters (directly related to this theme) Orenzans, J.M., A.M. Parma, O. Iribarne. 1990. Dynamics and management of natural populations. In: Scallop Biology and Aquaculture, S.E. Shumway (Ed.). ELSEVIERE Sc. Publ., pp. 625-713 Iribarne, O., M. Lasta, H. Vacas, A. Parma, M.S. Pascual. 1991. Assessment of abundance, gear efficiency and disturbance in a scallop dredge fishery: results of a depletion experiment. In: An International compendium of Scallop Biology and Culture; S. E. Shumway y P.A. Sandifer (Eds.), WORLD AQUACULTURE. 1: 242-248 Esteves J.L., Ciocco N.F., Colombo J.C., Freije H., Harris G., Iribarne O., Isla I., Nabel P., Pascual M.S., Penchaszadeh P.E., Rivas A. L., Santinelli N. 2000. The Argentine sea: The southeast south American shelf marine ecosystem. (Chapter 48; pp. 105-127) In: SEAS AT THE MILLENIUM. C. Shepard (ed.). ELSEVIERE Sc. Publ. Some Current Research Grants (as PI) Fundación Antorchas, 2004-2006. Boundary Ecosystems. U$S 350,000; 2004; European Commission (2004-2008). Climate variability and ENSO (Peru and Chile): Implications for natural resources and management, CENSOR. Sixth Framework programme priority (FP6-2002-INCO DEV-1). Project amount € 186.961 (Total amount € 3,000,000) Dr. MATTHIAS WOLFF About 22 years experience in marine fisheries and ecological research, with a main focus on invertebrate resources of South America. His dissertation research during the years 1983-1985 (University of Kiel, Germany) focussed on the ecology and population dynamics of the Peruvian scallop Argopecten purpuratus under the impact of El Niño. About a decade later, Dr. Wolff wrote his habilitation dissertation (University of Bremen, Germany) summarizing much of the research that he had devoted in Chile thereafter, where he had been in charge of the establishment of a fisheries research section at the Universidad Católica del Norte (Coquimbo, Chile) during the period 1986-1991 (being a DAAD-Long term lecturer send by the German Government). This habilitation was entitled: “Life histories and management of selected invertebrates of the Peruvian Upwelling System” and analysed and generalized his research findings on the scallop (Argopecten purpuratus), the crab (Cancer polyodon), the Octopus (Octopus mimus) and the false abalone (Concholepas concholepas) in Peru and Chile. In more recent years Dr. Wolff has revisited the Peruvian scallop fishery (1998-2000) in the context of a VW-sponsored research project, entitled: “Modelling the ecological and economic impact of the El Niño phenomenon on the multispecies diving fishery in Southern Peru” aimed at looking at the scallop resource in the context of the ecosystem by the use of the trophic modelling approach. Since last year (2004) he is leading a working package of a EU - sponsored research project called CENSOR (Climate Variability and El Niño Southern Oscillation: implications for natural coastal resources and management) aimed at the data integration and modelling of fisheries resources (of Peru and Chile) under the impact of ENSO. In 1998 Dr. Wolff created an International Masters programme called ISATEC (International Studies in Aquatic Tropical Ecology) at Bremen University, which is interdisciplinary, taught in English, and which is mainly dealing with coastal and resource management. He has published about 50 scientific papers, most of them in peer – reviewed international journals and has edited cruise reports and co-edited a recent book on “Ecological and Socioeconomic bases for the resource management of living resources in the national reserve of Paracas, Peru”. Among his most important recent duties are the direction of this ISATEC programme (including teaching of five courses), the above-mentioned direction of the CENSOR – Working package, the direction of a Research cooperation in marine science between the Centre for tropical marine ecology (ZMT, Bremen) and Cuban research institutions (Instituto de Oceanologia, Universidad de Habana, Centro de Investigaciones Pesqueras) and the supervision of 10 PhD-students (at the moment). For further inquiries look at the following web addresses: M. Wolff home page: http://www-user.uni-bremen.de/~mwolff/ CENSOR- Project: http/www.awi-bremerhaven.de/Benthic/CENSOR Dr. WILLIAM DUPAUL In the late 1980's Dr. DuPaul began his research experience with sea scallops (P. magellanicus) with a preliminary investigation on the relative selectivity of sea scallop dredges equipped with 3" rings and scallop trawls with 3.5" mesh. These investigations led to a study examining the selectivity of scallop trawls with a variety of mesh sizes tested. Eventually regulations were in place to require 5" mesh on scallop trawls. In 1989-1990, he began looking at the selectivity and catch rates of scallop dredges equipped with rings larger than 3" and eliminating various amounts of chaffing gear. In the early 1990's, Dr. DuPaul began two new research projects on the important biological aspects of sea scallops of importance to scallop management. The first involved a long term and intensive study on the relationship of shell height to meat weight and the implications of geographical distribution, depth, season and reproductive state. This work was followed by studies on the reproductive cycle and fecundity of sea scallops in the mid-Atlantic Region of the US. In 1994 through 2000 he embarked on a long term study on
Recommended publications
  • Full Text in Pdf Format
    Vol. 23: 265–274, 2015 AQUATIC BIOLOGY Published online April 1 doi: 10.3354/ab00626 Aquat Biol OPENPEN ACCESSCCESS Reproduction reduces HSP70 expression capacity in Argopecten purpuratus scallops subject to hypoxia and heat stress Katherina Brokordt*, Hernán Pérez, Catalina Herrera, Alvaro Gallardo Centro de Estudios Avanzados en Zonas Áridas (CEAZA), Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile ABSTRACT: In scallops, gonad production is highly demanding energetically, and reproduction usually occurs during spring−summer, a period of strong environmental changes. The synthesis of heat-shock proteins (HSPs) is a major mechanism of stress tolerance in animals, including scal- lops, and HSP expression contributes considerably to cellular energy demand. Therefore, repro- ductive investment may limit the availability of energy (in terms of ATP) for the expression of HSP in organisms exposed to environmental stress. We evaluated the stress response capacity of adult Argopecten purpuratus scallops to high temperature and hypoxia. Stress response capacity was assessed through gene expression (for temperature stress) and protein induction of 70 kD HSP at 3 reproductive stages: immature, mature and spawned. We also evaluated the effect of reproduc- tive status on the cellular ATP provisioning capacity through citrate synthase activity. Immature scallops exposed to thermal stress showed 1.3- and 1.5-fold increases in hsp70 mRNA and HSP70 protein levels, respectively, and those exposed to hypoxia doubled their level of HSP70 compared to non-stressed immature scallops. However, following gonad maturation and spawning, hsp70 mRNA increased by only 0.49- and 0.65-fold, respectively, after thermal stress and HSP70 protein levels of scallops exposed to thermal and hypoxia stressors did not differ from those of non- stressed animals.
    [Show full text]
  • Physiological Effects and Biotransformation of Paralytic
    PHYSIOLOGICAL EFFECTS AND BIOTRANSFORMATION OF PARALYTIC SHELLFISH TOXINS IN NEW ZEALAND MARINE BIVALVES ______________________________________________________________ A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy in Environmental Sciences in the University of Canterbury by Andrea M. Contreras 2010 Abstract Although there are no authenticated records of human illness due to PSP in New Zealand, nationwide phytoplankton and shellfish toxicity monitoring programmes have revealed that the incidence of PSP contamination and the occurrence of the toxic Alexandrium species are more common than previously realised (Mackenzie et al., 2004). A full understanding of the mechanism of uptake, accumulation and toxin dynamics of bivalves feeding on toxic algae is fundamental for improving future regulations in the shellfish toxicity monitoring program across the country. This thesis examines the effects of toxic dinoflagellates and PSP toxins on the physiology and behaviour of bivalve molluscs. This focus arose because these aspects have not been widely studied before in New Zealand. The basic hypothesis tested was that bivalve molluscs differ in their ability to metabolise PSP toxins produced by Alexandrium tamarense and are able to transform toxins and may have special mechanisms to avoid toxin uptake. To test this hypothesis, different physiological/behavioural experiments and quantification of PSP toxins in bivalves tissues were carried out on mussels ( Perna canaliculus ), clams ( Paphies donacina and Dosinia anus ), scallops ( Pecten novaezelandiae ) and oysters ( Ostrea chilensis ) from the South Island of New Zealand. Measurements of clearance rate were used to test the sensitivity of the bivalves to PSP toxins. Other studies that involved intoxication and detoxification periods were carried out on three species of bivalves ( P.
    [Show full text]
  • The Immune Response of the Scallop Argopecten Purpuratus Is Associated with Changes in the Host Microbiota Structure and Diversity T
    Fish and Shellfish Immunology 91 (2019) 241–250 Contents lists available at ScienceDirect Fish and Shellfish Immunology journal homepage: www.elsevier.com/locate/fsi Full length article The immune response of the scallop Argopecten purpuratus is associated with changes in the host microbiota structure and diversity T K. Muñoza, P. Flores-Herreraa, A.T. Gonçalvesb, C. Rojasc, C. Yáñezc, L. Mercadoa, K. Brokordtd, ∗ P. Schmitta, a Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile b Laboratorio de Biotecnología y Genómica Acuícola – Centro Interdisciplinario para la Investigación Acuícola (INCAR), Universidad de Concepción, Concepción, Chile c Laboratorio de Microbiología, Instituto de Biología, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile d Laboratory of Marine Physiology and Genetics (FIGEMA), Centro de Estudios Avanzados en Zonas Áridas (CEAZA) and Universidad Católica del Norte, Coquimbo, Chile ARTICLE INFO ABSTRACT Keywords: All organisms live in close association with a variety of microorganisms called microbiota. Furthermore, several 16S rDNA deep amplicon sequencing studies support a fundamental role of the microbiota on the host health and homeostasis. In this context, the aim Host-microbiota interactions of this work was to determine the structure and diversity of the microbiota associated with the scallop Argopecten Scallop purpuratus, and to assess changes in community composition and diversity during the host immune response. To Innate immune response do this, adult scallops were immune challenged and sampled after 24 and 48 h. Activation of the immune Antimicrobial effectors response was established by transcript overexpression of several scallop immune response genes in hemocytes and gills, and confirmed by protein detection of the antimicrobial peptide big defensin in gills of Vibrio-injected scallops at 24 h post-challenge.
    [Show full text]
  • 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.
    [Show full text]
  • Draft Genome of the Peruvian Scallop Argopecten Purpuratus
    GigaScience, 7, 2018, 1–6 doi: 10.1093/gigascience/giy031 Advance Access Publication Date: 2 April 2018 Data Note DATA NOTE Draft genome of the Peruvian scallop Argopecten Downloaded from https://academic.oup.com/gigascience/article/7/4/giy031/4958978 by guest on 29 September 2021 purpuratus Chao Li1, Xiao Liu2,BoLiu1, Bin Ma3, Fengqiao Liu1, Guilong Liu1, Qiong Shi4 and Chunde Wang 1,* 1Marine Science and Engineering College, Qingdao Agricultural University, Qingdao 266109, China, 2Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China, 3Qingdao Oceanwide BioTech Co., Ltd., Qingdao 266101, China and 4Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, BGI, Shenzhen 518083, China *Correspondence address. Chunde Wang, Marine Science and Engineering College, Qingdao Agricultural University, Qingdao 266109, China. Tel: +8613589227997; E-mail: [email protected] http://orcid.org/0000-0002-6931-7394 Abstract Background: The Peruvian scallop, Argopecten purpuratus, is mainly cultured in southern Chile and Peru was introduced into China in the last century. Unlike other Argopecten scallops, the Peruvian scallop normally has a long life span of up to 7 to 10 years. Therefore, researchers have been using it to develop hybrid vigor. Here, we performed whole genome sequencing, assembly, and gene annotation of the Peruvian scallop, with an important aim to develop genomic resources for genetic breeding in scallops. Findings: A total of 463.19-Gb raw DNA reads were sequenced. A draft genome assembly of 724.78 Mb was generated (accounting for 81.87% of the estimated genome size of 885.29 Mb), with a contig N50 size of 80.11 kb and a scaffold N50 size of 1.02 Mb.
    [Show full text]
  • Shelled Molluscs
    Encyclopedia of Life Support Systems (EOLSS) Archimer http://www.ifremer.fr/docelec/ ©UNESCO-EOLSS Archive Institutionnelle de l’Ifremer Shelled Molluscs Berthou P.1, Poutiers J.M.2, Goulletquer P.1, Dao J.C.1 1 : Institut Français de Recherche pour l'Exploitation de la Mer, Plouzané, France 2 : Muséum National d’Histoire Naturelle, Paris, France Abstract: Shelled molluscs are comprised of bivalves and gastropods. They are settled mainly on the continental shelf as benthic and sedentary animals due to their heavy protective shell. They can stand a wide range of environmental conditions. They are found in the whole trophic chain and are particle feeders, herbivorous, carnivorous, and predators. Exploited mollusc species are numerous. The main groups of gastropods are the whelks, conchs, abalones, tops, and turbans; and those of bivalve species are oysters, mussels, scallops, and clams. They are mainly used for food, but also for ornamental purposes, in shellcraft industries and jewelery. Consumed species are produced by fisheries and aquaculture, the latter representing 75% of the total 11.4 millions metric tons landed worldwide in 1996. Aquaculture, which mainly concerns bivalves (oysters, scallops, and mussels) relies on the simple techniques of producing juveniles, natural spat collection, and hatchery, and the fact that many species are planktivores. Keywords: bivalves, gastropods, fisheries, aquaculture, biology, fishing gears, management To cite this chapter Berthou P., Poutiers J.M., Goulletquer P., Dao J.C., SHELLED MOLLUSCS, in FISHERIES AND AQUACULTURE, from Encyclopedia of Life Support Systems (EOLSS), Developed under the Auspices of the UNESCO, Eolss Publishers, Oxford ,UK, [http://www.eolss.net] 1 1.
    [Show full text]
  • Shellfish/Crustaceans
    Shellfish/crustaceans 1 Shellfish/crustaceans: mussels Green shell mussels, blanched REF = GS HS Perna canaliculus 30/45 pc/kg Half shell Box 1 kg Chilean mussels, cooked REF = MUS WS Mytilus chilensis 40/60 or 60/80 pc/kg Whole shell Polybag 1 kg, vacuum Chilean mussels, cooked REF = MUS HS Mytilus chilensis 60/80 st/kg Half shell Box 1 kg Mussel meat, cooked REF = MM(S) Chili, Mytilus chilensis 100/200, 200/300 or 300/500 pc/kg Polybag 800 g 2 Shellfish/crustaceans: clams Japanese clams, raw REF = JCL WS Ruditapes philippinarum 40/60 or 60/80 pc/kg Whole shell Polybag1 kg Baby clams, cooked REF = BCL W/HS Meretrix lyrata Whole shell: 40/60 or 60/80 pc/kg Polybag 1kg, vacuum Half shell: 60/90 or 90/120 pc/kg Polybag 800 g Baby clam meat, cooked REF = BCL Paphia undulata 800/1000 pc/kg Polybag 800 g Surf clams, raw REF = SCL WS Spisula solida 70/90 pc/kg Whole shell Polybag 1 kg 3 Shellfish/crustaceans: clams, scallops Chilean clams, raw REF = CCL WS Tawera gayi 90-150 pc/kg Whole shell Polybag 1 kg Roe-off scallops, big REF = SCA ROFF Placopecten magellanicus USA: U/10 and 10/20 pc/lb Polybag 800 g MSC Roe-off scallops, big REF = MSC SCA ROFF Placopecten magellanicus 10/20 pc/lb, USA MSC certified Polybag 800 g Roe-off scallops, big, dry REF = SCA ROFF D (also available in MSC) Placopecten magellanicus 10/20 pc/lb, USA Polybag 800 g 4 Shellfish/crustaceans: scallops, razor Scallops, roeless, no additives, small, Peru REF = SCA ROFF PD Argopecten purpuratus 20/30, 30/40, 40/60 or 60/80 pc/lb Polybag 800 g Scallops, roe on, no additives,
    [Show full text]
  • Redalyc.How Healthy Are Cultivated Scallops (Argopecten Purpuratus)
    Revista de Biología Marina y Oceanografía ISSN: 0717-3326 [email protected] Universidad de Valparaíso Chile Lohrmann, Karin B. How healthy are cultivated scallops (Argopecten purpuratus) from Chile? A histopathological survey Revista de Biología Marina y Oceanografía, vol. 44, núm. 1, abril, 2009, pp. 35-47 Universidad de Valparaíso Viña del Mar, Chile Available in: http://www.redalyc.org/articulo.oa?id=47911450004 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Revista de Biología Marina y Oceanografía 44(1): 35-47, abril de 2009 How healthy are cultivated scallops (Argopecten purpuratus) from Chile? A histopathological survey ¿Qué tan sanos son los ostiones (Argopecten purpuratus) de cultivo en Chile? Un catastro histopatológico Karin B. Lohrmann1 1Facultad de Ciencias del Mar, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile [email protected] Resumen.- El cultivo del ostión del Norte (Argopecten Abstract.- Scallop (Argopecten purpuratus) cultivation is purpuratus) es una importante actividad económica en la zona an important economic activity in the central-northern region centro-norte de Chile, y las enfermedades son una constante of Chile, and diseases are a permanent concern for farmers and preocupación para los cultivadores y la autoridad pesquera. Se fishing authorities. A one year-long survey was undertaken to realizó un catastro de un año para detectar qué parásitos o find out what parasites and putative pathogens are present in posibles patógenos se encuentran presentes en ostiones cultivated scallops from three locations: Caldera, Guanaqueros cultivados en tres localidades: Caldera, Guanaqueros y Tongoy.
    [Show full text]
  • Aquaculture Potential of Bohai Red and Its Hybrid with Agropecten
    bioRxiv preprint doi: https://doi.org/10.1101/2019.12.29.890160; this version posted December 30, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Aquaculture potential of Bohai Red and its hybrid with Agropecten 2 irradians concentricus in southern China 3 Gaoyou Yaoa, b,Jianqiang Lia, b,Yuyuan Wub, Xiaoying Sua, b, Jie Tana, b,Zhigang Liua, 4 b,* 5 6 a Engineering Research Center of Healthy Breeding for Economic Invertebrates in the South China 7 Sea,Zhanjiang, Guangdong,524088,China 8 b College of Fisheries, Guangdong Ocean University, Zhanjiang 524025, China 9 10 * Corresponding author: College of Fisheries, Guangdong Ocean University, 11 Zhanjiang 524088, PR China. 12 E-mail address: [email protected] 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 bioRxiv preprint doi: https://doi.org/10.1101/2019.12.29.890160; this version posted December 30, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 33 Abstract 34 Argopecten irradians concentricus (Say), one of four geographic subspecies of 35 the bay scallop, has become the major cultured species in southern China since its 36 introduction in 1995. However, its population has been significantly reduced due to 37 high mortality.Also, poor growth rate has been observed following decades of 38 culture.Therefore, the introduction or creation of new varieties is an urgent need.
    [Show full text]
  • The Evolution of Extreme Longevity in Modern and Fossil Bivalves
    Syracuse University SURFACE Dissertations - ALL SURFACE August 2016 The evolution of extreme longevity in modern and fossil bivalves David Kelton Moss Syracuse University Follow this and additional works at: https://surface.syr.edu/etd Part of the Physical Sciences and Mathematics Commons Recommended Citation Moss, David Kelton, "The evolution of extreme longevity in modern and fossil bivalves" (2016). Dissertations - ALL. 662. https://surface.syr.edu/etd/662 This Dissertation is brought to you for free and open access by the SURFACE at SURFACE. It has been accepted for inclusion in Dissertations - ALL by an authorized administrator of SURFACE. For more information, please contact [email protected]. Abstract: The factors involved in promoting long life are extremely intriguing from a human perspective. In part by confronting our own mortality, we have a desire to understand why some organisms live for centuries and others only a matter of days or weeks. What are the factors involved in promoting long life? Not only are questions of lifespan significant from a human perspective, but they are also important from a paleontological one. Most studies of evolution in the fossil record examine changes in the size and the shape of organisms through time. Size and shape are in part a function of life history parameters like lifespan and growth rate, but so far little work has been done on either in the fossil record. The shells of bivavled mollusks may provide an avenue to do just that. Bivalves, much like trees, record their size at each year of life in their shells. In other words, bivalve shells record not only lifespan, but also growth rate.
    [Show full text]
  • Argopecten Purpuratus) to Isolated and Combined Environmental Drivers of Coastal Upwelling
    ICES Journal of Marine Science (2019), 76(6), 1836–1849. doi:10.1093/icesjms/fsz080 Downloaded from https://academic.oup.com/icesjms/article-abstract/76/6/1836/5487735 by Universidad Adolfo Ibanez user on 02 January 2020 Original Article Physiological responses of juvenile Chilean scallops (Argopecten purpuratus) to isolated and combined environmental drivers of coastal upwelling Laura Ramajo 1,2,3,4*, Carolina Ferna´ndez1,3, Yolanda Nu´nez~ 5, Paz Caballero2, Marco A. Lardies1,3, and Marı´a Josefina Poupin6,7 1Departamento de Ciencias, Facultad de Artes Liberales, Universidad Adolfo Iba´~nez, Avenida Diagonal Las Torres 2640, Pe~nalole´n, Santiago, Chile 2Centro de Estudios Avanzados en Zonas A´ridas, Avenida Ossando´n 877, Coquimbo, Chile 3Center for the Study of Multiple-drivers on Marine Socio-Ecological Systems (MUSELS), Universidad de Concepcio´n, Chile 4Centro de Investigacio´n e Innovacio´n para el Cambio Clima´tico (CiiCC), Avenida Eje´rcito 146, Santiago, Chile 5Facultad de Ciencias Biolo´gicas, Pontificia Universidad de Chile (PUC), Av Libertador Bernardo O’Higgins 340, Santiago, Chile 6Laboratorio de Bioingenierı´a, Facultad de Ingenierı´a and Ciencias, Universidad Adolfo Iba´~nez, Avenida Diagonal Las Torres 2640, Pe~nalole´n, Santiago, Chile 7Center of Applied Ecology and Sustainability (CAPES), Av Libertador Bernardo O’Higgins 340, Santiago, Chile *Corresponding author: tel: þ 56 51 2673259; e-mail: [email protected]. Ramajo, L., Ferna´ndez, C., Nu´nez,~ Y., Caballero, P., Lardies, M. A., and Poupin, M. J. Physiological responses of juvenile Chilean scallops (Argopecten purpuratus) to isolated and combined environmental drivers of coastal upwelling. – ICES Journal of Marine Science, 76: 1836–1849.
    [Show full text]
  • BROODSTOCK CONDITIONING and LARVAL REARING of the GEODUCK CLAM (Panopea Generosa GOULD, 1850)
    BROODSTOCK CONDITIONING AND LARVAL REARING OF THE GEODUCK CLAM (Panopea generosa GOULD, 1850) by Robert Marshall B.Sc.(hons), Dalhousie University, 1993 M.Aq., Simon Fraser University, 1997 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in The Faculty of Graduate Studies (Animal Science) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) March 2012 © Robert Marshall, 2012 Abstract The aim of this thesis was to identify conditions that optimize Panopea generosa broodstock conditioning and larval growth and survival in a hatchery setting. A series of experiments subjected broodstock (adults) to various levels of key factors [i.e. temperature (Ch. 2), salinity (Ch. 3) and nutrition [ration (Ch. 4) and feed type (Ch. 5)]. A larval experiment examined the effects of stocking density and feed level combinations on growth and survival (Ch. 6). Broodstock responses were quantified using gravimetric (condition and gonadosomatic indices) and histological techniques (development classification, volume fractions and oocyte diameter). Survival and spawning rates were also examined. Of the temperatures tested (7, 11, 15 and 19˚C) 11˚C had the highest spawning rates (% individuals) and more oocytes follicle-1, than 15 and 19˚C. At 7˚C gonadosomatic indices were highest but this temperature did not produce spawning clams. Gonads degenerated at 19˚C. Among salinities of 17, 20, 24, and 29 gonad sheath thickness and area occupied by gametes increased at 29 but not at 24. Salinities of 17 and 20 were associated with fungal infection and had high mortality rates after 26 d exposure. With higher ration treatments (up to 7.2 × 109 cells clam-1 d-1 [Isochrysis sp.
    [Show full text]