DOCSLIB.ORG

Dicentrarchus Labrax): Molecular Characterization, Quantification in Plasma, Liver and Ovary, and Maturational Proteolysis

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Dicentrarchus Labrax): Molecular Characterization, Quantification in Plasma, Liver and Ovary, and Maturational Proteolysis Multiple vitellogenins and product yolk proteins in European sea bass (Dicentrarchus labrax): Molecular characterization, quantification in plasma, liver and ovary, and maturational proteolysis. Ozlem Yilmaz, Francisco Prat, A. Jose Ibáñez, Sadi Köksoy, Haruna Amano, Craig V. Sullivan To cite this version: Ozlem Yilmaz, Francisco Prat, A. Jose Ibáñez, Sadi Köksoy, Haruna Amano, et al.. Multiple vitel- logenins and product yolk proteins in European sea bass (Dicentrarchus labrax): Molecular char- acterization, quantification in plasma, liver and ovary, and maturational proteolysis.. Comparative Biochemistry and Physiology - Part B: Biochemistry and Molecular Biology, Elsevier, 2016, 194-195, pp.71-86. 10.1016/j.cbpb.2015.11.010. hal-01303975 HAL Id: hal-01303975 https://hal.archives-ouvertes.fr/hal-01303975 Submitted on 27 May 2020 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. ÔØ ÅÒÙ×Ö ÔØ Multiple vitellogenins and product yolk proteins in European sea bass (Dicentrarchus labrax): Molecular characterization, quantification in plasma, liver and ovary, and maturational proteolysis Ozlem Yilmaz, Francisco Prat, A. Jose Ib´a˜nez, Sadi K¨oksoy, Haruna Amano, Craig V. Sullivan PII: S1096-4959(15)00210-9 DOI: doi: 10.1016/j.cbpb.2015.11.010 Reference: CBB 9960 To appear in: Comparative Biochemistry and Physiology, Part B Received date: 7 May 2015 Revised date: 3 November 2015 Accepted date: 26 November 2015 Version preprint Version postprint Please cite this article as: Yilmaz, Ozlem, Prat, Francisco, Ib´a˜nez, A. Jose, K¨oksoy, Sadi, Amano, Haruna, Sullivan, Craig V., Multiple vitellogenins and product yolk proteins in European sea bass (Dicentrarchus labrax): Molecular characterization, quantification in plasma, liver and ovary, and maturational proteolysis, Comparative Biochemistry and Physiology, Part B (2015), doi: 10.1016/j.cbpb.2015.11.010 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Comment citer ce document : Yilmaz, O., Prat, F., Ibáñez, A. J., Köksoy, S., Amano, H., Sullivan, C. V. (2016). Multiple vitellogenins and product yolk proteins in European sea bass (Dicentrarchus labrax): Molecular characterization, quantification in plasma, liver and ovary, and maturational proteolysis. ComparativeComparative Biochemistry Biochemistry and Physiology and Physiology. B-Biochemistry Part B, Biochemistry & Molecular and Biology. Molecular DOI Biology,: 10.1016/j.cbpb.2015.11.010 194-195, 71-86. DOI : 10.1016/j.cbpb.2015.11.010 ACCEPTED MANUSCRIPT Multiple vitellogenins and product yolk proteins in European sea bass (Dicentrarchus labrax): Molecular characterization, quantification in plasma, liver and ovary, and maturational proteolysis. OZLEM YILMAZa*, FRANCISCO PRATb, A. JOSE IBÁÑEZc**, SADI KÖKSOYd, HARUNA e f*** AMANO , AND CRAIG V. SULLIVAN aAkdeniz University, Fisheries Faculty, Antalya, 07070, TURKEY bInstituto de Ciencias Marinas de Andalucía, Consejo Superior de Investigaciones Científicas, Avda. República Saharaui 2, 11510 Puerto Real, Cádiz, SPAIN cInstituto de Acuicultura de Torre de la Sal, Consejo Superior de Investigaciones Científicas, Torre de la Sal, s/n 12595, Ribera de Cabanes, Castellòn, SPAIN d Central Research and Immunology Laboratories, Akdeniz University, Faculty of Medicine, Antalya, 07070, TURKEY e School of Marine Biosciences, Kitasato University, 1-15-1 Kitasato, Minami, Sagamihara, Version preprint Version postprint Kanagawa 252-0373, JAPAN f Department of Biology, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC 27695-7617, USA. * Present address: ACCEPTEDInstitut National de la Recherche MANUSCRIPT Agronomique, INRA-SCRIBE, IFR 140, Campus de Beaulieu, 35000 Rennes Cedex, FRANCE ** Present address: Electron and Confocal Microscopy Service, University of Valência – SCIE, Dr Moliner, 50-Research building, Lab-1.63, 46100 Burjassot-Urjassot, Valência, SPAIN *** Corresponding author and present address: Carolina AquaGyn, P.O. Box 12914, Raleigh, NC 27605, USA. Tel./Fax; 919-302-7888. Email: [email protected] Comment citer ce document : 1 Yilmaz, O., Prat, F., Ibáñez, A. J., Köksoy, S., Amano, H., Sullivan, C. V. (2016). Multiple vitellogenins and product yolk proteins in European sea bass (Dicentrarchus labrax): Molecular characterization, quantification in plasma, liver and ovary, and maturational proteolysis. ComparativeComparative Biochemistry Biochemistry and Physiology and Physiology. B-Biochemistry Part B, Biochemistry & Molecular and Biology. Molecular DOI Biology,: 10.1016/j.cbpb.2015.11.010 194-195, 71-86. DOI : 10.1016/j.cbpb.2015.11.010 ACCEPTED MANUSCRIPT ABSTRACT Three complete vitellogenin (Vtg) polypeptides of European sea bass (Dicentrarchus labrax), an acanthomorph teleost spawning pelagic eggs in seawater, were deduced from cDNA and identified as VtgAa, VtgAb and VtgC based on current Vtg nomenclature and phylogeny. Label free quantitative mass spectrometry verified the presence of the three sea bass Vtgs or their product yolk proteins (YPs) in liver, plasma and ovary of postvitellogenic females. As evidenced by normlized spectral counts, VtgAb-derived protein was 2- to 5-fold more abundant, depending on sample type, than for VtgAa, while VtgC-derived protein was less abundant, albeit only 3-fold lower than for VtgAb in the ovary. Western blotting with Vtg type-specific antisera raised against corresponding grey mullet (Mugil cephalus) lipovitellins (Lvs) detected all three types of sea bass Vtg in the blood plasma of gravid females and/or estrogenized males and showed that all three forms of sea bass Lv undergo limited partial degradation during oocyte maturation. The comparatively high levels of VtgC-derived YPs in fully-grown oocytes and the maturational proteolysis of all three types of Lv differ from what has been reported for other teleosts spawning pelagic eggs in seawater but are similar to recent findings for two species of North American Version preprint Version postprint Moronidae, the striped bass (Morone saxatilis) and white perch (M. americana), which spawn pelagic and demersal eggs, respectively in fresh water. Together with the high Vtg sequence homologies and virtually identical structural features of each type of Vtg between species, these findings indicate that the moronid multiple Vtg systems doACCEPTED not substantially vary with MANUSCRIPT reproductive environment. Keywords: Maturation, Molecular, Moronidae, Oocyte, Ovary, Teleost, Vitellogenin, Yolk Abbreviations: cathepsin (CAT), complementry DNA (cDNA), ethylenediaminetetraacetic acid (EDTA), free amino acids (FAA), oocyte maturation (OM), ovulated (OV), postvitellogenic (PV), reverse transcription - polymerase chain reaction (RT-PCR), sodiumdodecylsulfate polyacrylamide gel electrophoresis (SDS-PAGE), untranslated region (UTR), vitellogenin (Vtg), yolk protein (YP) Comment citer ce document : 2 Yilmaz, O., Prat, F., Ibáñez, A. J., Köksoy, S., Amano, H., Sullivan, C. V. (2016). Multiple vitellogenins and product yolk proteins in European sea bass (Dicentrarchus labrax): Molecular characterization, quantification in plasma, liver and ovary, and maturational proteolysis. ComparativeComparative Biochemistry Biochemistry and Physiology and Physiology. B-Biochemistry Part B, Biochemistry & Molecular and Biology. Molecular DOI Biology,: 10.1016/j.cbpb.2015.11.010 194-195, 71-86. DOI : 10.1016/j.cbpb.2015.11.010 ACCEPTED MANUSCRIPT 1. Introduction Vitellogenin (Vtg) is secreted by the liver, taken up by growing oocytes via receptor-mediated endocytosis, and cleaved into yolk proteins (YPs), which in teleosts include lipovitellin (Lv), phosvitin (Pv), ’component (’c), a C-terminal peptide (C-t), and various Lv-Pv complexes (reviews: Patiño and Sullivan 2002; Babin et al. 2007; Finn 2007ab; Reading and Sullivan 2011). The Lv, consisting of a heavy chain (LvH) and a light chain (LvL), is by far the largest YP and is heavily lipidated, delivering mainly phospholipids into growing oocytes (Romano et al. 2004; Johnson 2009). The diminutive Pv mainly consists of phosphorylated serine residues that are thought to stabilize nascent Vtg structure during lipid loading, enhance Vtg solubility, and enable Pv to bind calcium and other metabolically important cations for deposition into yolk (Finn 2007b). The β′c and C-t arise as cleavage products of a YP domain homologous to human von Willebrand factor type D (vWFD), which contains a highly conserved motif of repeated cysteine residues and has been postulated to stabilize the Vtg dimer, play a role in cellular recognition or receptor binding, and protect Vtg or its product YPs from premature proteolysis (Finn 2007b; Reading et al. 2009).
Load more

Recommended publications
  • The First Highly Contiguous Genome Assembly of Pikeperch (Sander Lucioperca), an Emerging Aquaculture Species in Europe
    G C A T T A C G G C A T genes Article The First Highly Contiguous Genome Assembly of Pikeperch (Sander lucioperca), an Emerging Aquaculture Species in Europe Julien Alban Nguinkal 1 , Ronald Marco Brunner 1,*, Marieke Verleih 1, Alexander Rebl 1 , Lidia de los Ríos-Pérez 2 , Nadine Schäfer 1, Frieder Hadlich 1, Marcus Stüeken 3, Dörte Wittenburg 2 and Tom Goldammer 1,* 1 Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany; [email protected] (J.A.N.); [email protected] (M.V.); [email protected] (A.R.); [email protected] (N.S.); [email protected] (F.H.) 2 Institute of Genetics and Biometry, Leibniz Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany; [email protected] (L.d.l.R.-P.); [email protected] (D.W.) 3 State Research Center of Agriculture and Fisheries M-V, 17194 Hohen Wangelin, Germany; [email protected] * Correspondence: [email protected] (R.M.B); [email protected] (T.G.); Tel.: +49-38208-68-708 (T.G.) Received: 23 July 2019; Accepted: 8 September 2019; Published: 13 September 2019 Abstract: The pikeperch (Sander lucioperca) is a fresh and brackish water Percid fish natively inhabiting the northern hemisphere. This species is emerging as a promising candidate for intensive aquaculture production in Europe. Specific traits like cannibalism, growth rate and meat quality require genomics based understanding, for an optimal husbandry and domestication process. Still, the aquaculture community is lacking an annotated genome sequence to facilitate genome-wide studies on pikeperch.
    [Show full text]
  • Striped Bass
    Can you tell the difference between a striped bass, a white bass and a striped bass hybrid? Anglers need to know the differences between these spe- cies because different sizes, seasons and creel limits apply to striped bass and striped bass hybrids, and to white bass. Knowing the differences between these species can also help you better understand Pennsylvania fishes and our wa- ters. These fish belong to the family Moronidae, temperate basses, also known as “true” basses. In Pennsylvania, this family also includes the white perch. Moronidae species are medium-sized to large-sized active predators and prized trophy and sport fishes. Some species live only in fresh water, while others are anadromous they spend much of their lives in salt water or brackish water but return to fresh water to spawn. Striped Bass Morone saxatilis Identification: The striped bass has a smoothly arched pro- file, slimmer and more streamlined than a striped bass hybrid, until it reaches a weight of five to 10 pounds, when its body becomes heavy-looking. The back is olive-green to steely blue- gray, sometimes almost black. The sides are silvery to pale rapidly and stay in brackish bays at the end of their downstream silvery-green, shading to white on the belly. There are seven float. Juveniles spend their first and second summers in the or eight distinct dark stripes that run laterally on the side of tidal Delaware River with most inhabitating that area from the the body. Striped bass have two dorsal fins, the front spiny- Schuylkill River downstream into the state of Delaware.
    [Show full text]
  • Genetic Analysis of Whole Mitochondrial Genome of Lateolabrax Maculatus (Perciformes: Moronidae) Indicates the Presence of Two Populations Along the Chinese Coast
    ZOOLOGIA 37: e49046 ISSN 1984-4689 (online) zoologia.pensoft.net RESEARCH ARTICLE Genetic analysis of whole mitochondrial genome of Lateolabrax maculatus (Perciformes: Moronidae) indicates the presence of two populations along the Chinese coast Jie Gong 1,2, Baohua Chen 1,2, Bijun Li 1, Zhixiong Zhou 1, Yue Shi 1, Qiaozhen Ke 1,3, Dianchang Zhang 4, Peng Xu 1,2,3 1Fujian Key Laboratory of Genetics and Breeding of Marine Organisms, Xiamen University. 361000 Xiamen, China. 2Shenzhen Research Institute, Xiamen University. 518000 Shenzhen, China. 3State Key Laboratory of Large Yellow Croaker Breeding, Ningde Fufa Fisheries Company Limited. 352130 Ningde, China. 4South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences. 510300 Guangzhou, China. Corresponding author: Peng Xu ([email protected]) http://zoobank.org/B5BBA46C-7FC5-44C3-B9CE-19F8E93FAA1C ABSTRACT. The whole mitochondrial genome of Lateolabrax maculatus (Cuvier, 1828) was used to investigate the reasons for the observed patterns of genetic differentiation among 12 populations in northern and southern China. The haplotype diversity and nucleotide diversity of L. maculatus were 0.998 and 0.00169, respectively. Pairwise FST values between popula- tions ranged from 0.001 to 0.429, correlating positively with geographic distance. Genetic structure analysis and haplotype network analysis indicated that these populations were split into two groups, in agreement with geographic segregation and environment. Tajima’s D values, Fu’s Fs tests and Bayesian skyline plot (BSP) indicated that a demographic expansion event may have occurred in the history of L. maculatus. Through selection pressure analysis, we found evidence of significant negative selection at the ATP6, ND3, Cytb, COX3, COX2 and COX1 genes.
    [Show full text]
  • First Record of F2 Hybrid Striped Bass (Morone Chrysops ♀ × Morone Saxatilis ♂ × Morone Chrysops ♀ × Morone Saxatilis ♂) in Kemer Dam Lake
    Turkish Journal of Zoology Turk J Zool (2014) 38: 637-641 http://journals.tubitak.gov.tr/zoology/ © TÜBİTAK Research Article doi:10.3906/zoo-1304-42 First record of F2 hybrid striped bass (Morone chrysops ♀ × Morone saxatilis ♂ × Morone chrysops ♀ × Morone saxatilis ♂) in Kemer Dam Lake 1, 2 Volkan KIZAK *, Yusuf GÜNER 1 Fisheries Faculty, Tunceli University, Tunceli, Turkey 2 Fisheries Faculty, Ege University, İzmir, Turkey Received: 26.04.2013 Accepted: 19.03.2014 Published Online: 14.07.2014 Printed: 13.08.2014 Abstract: The morphometric and meristic characters of 2 F2 hybrid striped bass (M. chrysops ♀ × M. saxatilis ♂ × M. chrysops ♀ × M. saxatilis ♂) from the family Moronidae are described. Two specimens were caught from Kemer Dam Lake. The body of the F2 hybrid striped bass was elongated, moderately compressed, and scaly. Dorsal surface and sides were silver and black to olive-gray, and the abdomen was white in color. Four or 5 longitudinal broken stripes ran above the lateral line to the caudal fin. The stripes were less visible behind the pectoral fins and below the lateral line. The bodies of the2 F specimens were deeper than 1/4 the fork length. The 2 dorsal fins were separated entirely. The first dorsal fin had 8–9 spines, and the second dorsal fin had a spine and 13–14 soft rays. The caudal fin was slightly forked. The anal fin had 3 spines with 12–14 soft rays. One tooth patch was present on the anterior of the tongue. According to our results, the fish were 2F hybrid striped bass offspring of 1F hybrid striped bass, which can reproduce naturally in Turkey.
    [Show full text]
  • Updated Checklist of Marine Fishes (Chordata: Craniata) from Portugal and the Proposed Extension of the Portuguese Continental Shelf
    European Journal of Taxonomy 73: 1-73 ISSN 2118-9773 http://dx.doi.org/10.5852/ejt.2014.73 www.europeanjournaloftaxonomy.eu 2014 · Carneiro M. et al. This work is licensed under a Creative Commons Attribution 3.0 License. Monograph urn:lsid:zoobank.org:pub:9A5F217D-8E7B-448A-9CAB-2CCC9CC6F857 Updated checklist of marine fishes (Chordata: Craniata) from Portugal and the proposed extension of the Portuguese continental shelf Miguel CARNEIRO1,5, Rogélia MARTINS2,6, Monica LANDI*,3,7 & Filipe O. COSTA4,8 1,2 DIV-RP (Modelling and Management Fishery Resources Division), Instituto Português do Mar e da Atmosfera, Av. Brasilia 1449-006 Lisboa, Portugal. E-mail: [email protected], [email protected] 3,4 CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal. E-mail: [email protected], [email protected] * corresponding author: [email protected] 5 urn:lsid:zoobank.org:author:90A98A50-327E-4648-9DCE-75709C7A2472 6 urn:lsid:zoobank.org:author:1EB6DE00-9E91-407C-B7C4-34F31F29FD88 7 urn:lsid:zoobank.org:author:6D3AC760-77F2-4CFA-B5C7-665CB07F4CEB 8 urn:lsid:zoobank.org:author:48E53CF3-71C8-403C-BECD-10B20B3C15B4 Abstract. The study of the Portuguese marine ichthyofauna has a long historical tradition, rooted back in the 18th Century. Here we present an annotated checklist of the marine fishes from Portuguese waters, including the area encompassed by the proposed extension of the Portuguese continental shelf and the Economic Exclusive Zone (EEZ). The list is based on historical literature records and taxon occurrence data obtained from natural history collections, together with new revisions and occurrences.
    [Show full text]
  • Highly Diversified Late Cretaceous Fish Assemblage Revealed by Otoliths (Ripley Formation and Owl Creek Formation, Northeast Mississippi, Usa)
    Rivista Italiana di Paleontologia e Stratigrafia (Research in Paleontology and Stratigraphy) vol. 126(1): 111-155. March 2020 HIGHLY DIVERSIFIED LATE CRETACEOUS FISH ASSEMBLAGE REVEALED BY OTOLITHS (RIPLEY FORMATION AND OWL CREEK FORMATION, NORTHEAST MISSISSIPPI, USA) GARY L. STRINGER1, WERNER SCHWARZHANS*2 , GEORGE PHILLIPS3 & ROGER LAMBERT4 1Museum of Natural History, University of Louisiana at Monroe, Monroe, Louisiana 71209, USA. E-mail: [email protected] 2Natural History Museum of Denmark, Zoological Museum, Universitetsparken 15, DK-2100, Copenhagen, Denmark. E-mail: [email protected] 3Mississippi Museum of Natural Science, 2148 Riverside Drive, Jackson, Mississippi 39202, USA. E-mail: [email protected] 4North Mississippi Gem and Mineral Society, 1817 CR 700, Corinth, Mississippi, 38834, USA. E-mail: [email protected] *Corresponding author To cite this article: Stringer G.L., Schwarzhans W., Phillips G. & Lambert R. (2020) - Highly diversified Late Cretaceous fish assemblage revealed by otoliths (Ripley Formation and Owl Creek Formation, Northeast Mississippi, USA). Riv. It. Paleontol. Strat., 126(1): 111-155. Keywords: Beryciformes; Holocentriformes; Aulopiformes; otolith; evolutionary implications; paleoecology. Abstract. Bulk sampling and extensive, systematic surface collecting of the Coon Creek Member of the Ripley Formation (early Maastrichtian) at the Blue Springs locality and primarily bulk sampling of the Owl Creek Formation (late Maastrichtian) at the Owl Creek type locality, both in northeast Mississippi, USA, have produced the largest and most highly diversified actinopterygian otolith (ear stone) assemblage described from the Mesozoic of North America. The 3,802 otoliths represent 30 taxa of bony fishes representing at least 22 families. In addition, there were two different morphological types of lapilli, which were not identifiable to species level.
    [Show full text]
  • Endemik Beyşehir Kurbağası Pelophylax Caralitanus (Arıkan,1988) Populasyonlarında Comet Analizi Ile DNA Hasarın Değerlendirilmesi Uğur Cengiz Erişmiş
    Instructions for Authors Scope of the Journal if there is more than one author at the end of the text. Su Ürünleri Dergisi (Ege Journal of Fisheries and Aquatic Sciences) is an open access, international, Hanging indent paragraph style should be used. The year of the reference should be in parentheses double blind peer-reviewed journal publishing original research articles, short communications, after the author name(s). The correct arrangement of the reference list elements should be in order technical notes, reports and reviews in all aspects of fisheries and aquatic sciences including biology, as “Author surname, first letter of the name(s). (publication date). Title of work. Publication data. DOI ecology, biogeography, inland, marine and crustacean aquaculture, fish nutrition, disease and Article title should be in sentence case and the journal title should be in title case. Journal titles in the treatment, capture fisheries, fishing technology, management and economics, seafood processing, Reference List must be italicized and spelled out fully; do not abbreviate titles (e.g., Ege Journal of chemistry, microbiology, algal biotechnology, protection of organisms living in marine, brackish and Fisheries and Aquatic Sciences, not Ege J Fish Aqua Sci). Article titles are not italicized. If the journal is freshwater habitats, pollution studies. paginated by issue the issue number should be in parentheses. Su Ürünleri Dergisi (EgeJFAS) is published quarterly (March, June, September and December) by Ege DOI information (if available) should be placed at the end of the reference as in the example. The DOI University Faculty of Fisheries since 1984. information for the reference list can be retrieved from CrossRef © Simple Text Query Form (http:// Submission of Manuscripts www.crossref.org/SimpleTextQuery/) by just pasting the reference list into the query box.
    [Show full text]
  • Length-Weight Relationships of Marine Fish Collected from Around the British Isles
    Science Series Technical Report no. 150 Length-weight relationships of marine fish collected from around the British Isles J. F. Silva, J. R. Ellis and R. A. Ayers Science Series Technical Report no. 150 Length-weight relationships of marine fish collected from around the British Isles J. F. Silva, J. R. Ellis and R. A. Ayers This report should be cited as: Silva J. F., Ellis J. R. and Ayers R. A. 2013. Length-weight relationships of marine fish collected from around the British Isles. Sci. Ser. Tech. Rep., Cefas Lowestoft, 150: 109 pp. Additional copies can be obtained from Cefas by e-mailing a request to [email protected] or downloading from the Cefas website www.cefas.defra.gov.uk. © Crown copyright, 2013 This publication (excluding the logos) may be re-used free of charge in any format or medium for research for non-commercial purposes, private study or for internal circulation within an organisation. This is subject to it being re-used accurately and not used in a misleading context. The material must be acknowledged as Crown copyright and the title of the publication specified. This publication is also available at www.cefas.defra.gov.uk For any other use of this material please apply for a Click-Use Licence for core material at www.hmso.gov.uk/copyright/licences/ core/core_licence.htm, or by writing to: HMSO’s Licensing Division St Clements House 2-16 Colegate Norwich NR3 1BQ Fax: 01603 723000 E-mail: [email protected] 3 Contents Contents 1. Introduction 5 2.
    [Show full text]
  • Lagniappe Editor Glenn Thomas at Gthomas@ Agctr.Lsu.Edu
    Cooperative Extension Service R. Glenn Thomas, Ph.D. Associate Professor Fisheries School of Renewable Natural Resources Room 227 RNR Bldg., LSU Phone: 225.578.0771 Fax: 225. 578.4227 Baton Rouge, LA 70803 [email protected] Web site: www.lsuagcenter.com Research and Extension Programs Agriculture Economic/Community Development Environment/Natural Resources Families/Nutrition/Health 4-H Youth Programs September 1, 2007 Volume 31, No. 9 North Atlantic Cod Collapse Reevaluated The collapse of North Atlantic cod fishery is widely described as the perfect example of overfishing and mismanagement. Few environmental reporters fail to mention this disaster when discussing any ocean fisheries management efforts. Current re-analyses of the causes for the cod collapse focus on “a range of social and political factors that were implicated in the collapse of the stocks, including overfishing, government mismanagement and the disregard of scientific uncertainty.” However, a new comprehensive analysis of the cod populations of the North Atlantic has taken another approach: looking for similarities and differences in the various discrete stocks throughout the North Atlantic, while measuring differences in growth and reproduction in each stock. When commercial fishery effects are added to this analysis a surprising new conclusion becomes apparent: Environmental factors have been an overwhelming influence all along. The study by Brian Rothschild, published in the Transactions of the American Fisheries Society, finds that a strong negative environmental signal, probably associated with plankton dynamics, was a likely suspect in the cod’s disappearance. Spawning stock biomass (SSB - total weight of mature fish) tracked similar trends in all 11 cod stocks: declining from the 1960s through 1975, then increasing through 1985, then falling drastically through the 1990s and remaining low afterwards.
    [Show full text]
  • APPENDIX 3: DELETION TABLES 3.1 Aluminum
    APPENDIX 3: DELETION TABLES APPENDIX 3: DELETION TABLES 3.1 Aluminum TABLE 3.1.1: Deletion process for the Santa Ana River aluminum site-specific database. Phylum Class Order Family Genus/Species Common Name Code Platyhelminthes Turbellaria Tricladida Planarlidae Girardiaia tigrina Flatworm G Annelida Oligochaeta Haplotaxida Tubificidae Tubifex tubifex Worm F Mollusca Gastropoda Limnophila Physidae Physa sp. Snail G Arthropoda Branchiopoda Diplostraca Daphnidae Ceriodaphnia dubia Cladoceran O* Arthropoda Branchiopoda Diplostraca Daphnidae Daphnia magna Cladoceran O* Arthropoda Malacostraca Isopoda Asellidae Caecidotea aquaticus Isopod F Arthropoda Malacostraca Amphipoda Gammaridae Crangonyx pseudogracilis Amphipod F Arthropoda Malacostraca Amphipoda Gammaridae Gammarus pseudolimnaeus Amphipod G Arthropoda Insecta Plecoptera Perlidae Acroneuria sp. Stonefly O Arthropoda Insecta Diptera Chironomidae Tanytarsus dissimilis Midge G Chordata Actinopterygii Salmoniformes Salmonidae Oncorhynchus mykiss Rainbow trout D Chordata Actinopterygii Salmoniformes Salmonidae Oncorhynchus tschawytscha Chinook Salmon D Chordata Actinopterygii Salmoniformes Salmonidae Salmo salar Atlantic salmon D Chordata Actinopterygii Cypriniformes Cyprinidae Hybognathus amarus Rio Grande silvery minnow F Chordata Actinopterygii Cypriniformes Cyprinidae Pimephales promelas Fathead minnow S Chordata Actinopterygii Perifomes Centrarchidae Lepomis cyanellus Green sunfish S Chordata Actinopterygii Perifomes Centrarchidae Micropterus dolomieui Smallmouth bass G Chordata Actinopterygii
    [Show full text]
  • A Survey of Marine Bony Fishes of the Gaza Strip, Palestine
    The Islamic University of Gaza الجــــــــــامعة اﻹســــــــــﻻميـة بغــــــــــــــــــزة Deanship of Research and Graduate Studies عمادة البحث العممي والدراسات العميا Faculty of Science كــــميـــــــــــــــــــــــــــــــة العـمـــــــــــــــــــــــــــــــــــــوم Biological Sciences Master Program ماجـســــــــتيـر العمــــــــــــــوم الحـياتيــــــــــة )Zoology) عمـــــــــــــــــــــــــــــــــــــــم حيـــــــــــــــــــــــــــــــــــــــوا A Survey of Marine Bony Fishes of the Gaza Strip, Palestine ِـخ ٌﻷؿّان اؼٌظٍّح اٌثذغٌح فً لطاع غؼج، فٍـطٍٓ By Huda E. Abu Amra B.Sc. Biology Supervised by Dr. Abdel Fattah N. Abd Rabou Associate Professor of Environmental Sciences A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Biological Science (Zoology) August, 2018 إلــــــــــــــغاع أٔا اٌّىلغ أصٔاٖ ِمضَ اٌغؿاٌح اٌتً تذًّ اؼٌٕىاْ: A Survey of Marine Bony Fishes in the Gaza Strip, Palestine ِـخ ٌﻷؿّان اؼٌظٍّح اٌثذغٌح فً لطاع غؼج، فٍـطٍٓ أقش تأٌ يا اشرًهد عهّٛ ْزِ انشعانح إًَا ْٕ َراض جٓذ٘ انخاص، تاعرصُاء يا ذًد اﻹشاسج إنّٛ حٛصًا ٔسد، ٔأٌ ْزِ انشعانح ككم أٔ أ٘ جضء يُٓا نى ٚقذو يٍ قثم اٜخشٍٚ نُٛم دسجح أٔ نقة عهًٙ أٔ تحصٙ نذٖ أ٘ يؤعغح ذعهًٛٛح أٔ تحصٛح أخشٖ. Declaration I understand the nature of plagiarism, and I am aware of the University’s policy on this. The work provided in this thesis, unless otherwise referenced, is the researcher's own work, and has not been submitted by others elsewhere for any other degree or qualification. اعى انطانثح ْذٖ عٛذ عٛذ أتٕ عًشج :Student's name انرٕقٛع Signature: Huda انراسٚخ Date: 8-8-2018 I ٔتٍجح اٌذىُ ػٍى أطغودح ِاجـتٍغ II Abstract The East Mediterranean Sea is home to a wealth of marine resources including the bony fishes (Class Osteichthyes), which constitute a capital source of protein worldwide.
    [Show full text]
  • Alteration of Growth and Temperature Tolerance of European Sea Bass
    Turk. J. Fish.& Aquat. Sci. 20(5), 331-340 http://doi.org/10.4194/1303-2712-v20_5_01 R E S E A R C H P A P E R Alteration of Growth and Temperature Tolerance of European Sea Bass (Dicentrarchus labrax Linnaeus 1758) in Different Temperature and Salinity Combinations Hatice Asuman Yilmaz1,* , Serhat Turkmen2, Metin Kumlu1, Orhan Tufan 1 3 Eroldogan , Nafiye Perker 1Cukurova University, Department of Aquaculture, Faculty of Fisheries, 01330 Balcali Adana, Turkey. 2 Universidad de Las Palmas de Gran Canaria, Grupo de Investigación en Acuicultura (GIA), Transmontaña s/n, 35413 Arucas, Las Palmas, Canary Islands, Spain. 3Mediterranean Fisheries Research Production and Training Institute, Kepez Unit, 07001 Antalya, Turkey. Article History Abstract Received 23 January 2019 Accepted 10 July 2019 This study was performed to assess the combined effects of three salinities (0, 20 and First Online 26 July 2019 38 ppt) and three acclimation temperatures (15, 20 and 25°C) on growth performance, proximate composition and thermal tolerance of European Sea Bass (32 g) inhabiting Corresponding Author southern parts of the Mediterranean Sea. Highest fish final weight (83.8 g) was achieved at 25°C in freshwater (FW). Specific growth rate (SGR) at 25°C was about Tel.: +903223386060 twice higher than that at 15°C, while 20°C promoted an intermediate growth. The fish E-mail: [email protected] cultured in FW at 25°C displayed consistently lower FCR and better SGR than those in full strength seawater (SW). Salinity had strong influence on fillet protein and lipid Keywords compositions. Highest lipid content (14.9%) was found in fish held in brackish water CTMin (20 ppt), and the fish held in SW had the lowest lipid content.
    [Show full text]