Skeletal Anomalies in Wild Common Dab
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Pleuronectidae, Poecilopsettidae, Achiridae, Cynoglossidae
1536 Glyptocephalus cynoglossus (Linnaeus, 1758) Pleuronectidae Witch flounder Range: Both sides of North Atlantic Ocean; in the western North Atlantic from Strait of Belle Isle to Cape Hatteras Habitat: Moderately deep water (mostly 45–330 m), deepest in southern part of range; found on mud, muddy sand or clay substrates Spawning: May–Oct in Gulf of Maine; Apr–Oct on Georges Bank; Feb–Jul Meristic Characters in Middle Atlantic Bight Myomeres: 58–60 Vertebrae: 11–12+45–47=56–59 Eggs: – Pelagic, spherical Early eggs similar in size Dorsal fin rays: 97–117 – Diameter: 1.2–1.6 mm to those of Gadus morhua Anal fin rays: 86–102 – Chorion: smooth and Melanogrammus aeglefinus Pectoral fin rays: 9–13 – Yolk: homogeneous Pelvic fin rays: 6/6 – Oil globules: none Caudal fin rays: 20–24 (total) – Perivitelline space: narrow Larvae: – Hatching occurs at 4–6 mm; eyes unpigmented – Body long, thin and transparent; preanus length (<33% TL) shorter than in Hippoglossoides or Hippoglossus – Head length increases from 13% SL at 6 mm to 22% SL at 42 mm – Body depth increases from 9% SL at 6 mm to 30% SL at 42 mm – Preopercle spines: 3–4 occur on posterior edge, 5–6 on lateral ridge at about 16 mm, increase to 17–19 spines – Flexion occurs at 14–20 mm; transformation occurs at 22–35 mm (sometimes delayed to larger sizes) – Sequence of fin ray formation: C, D, A – P2 – P1 – Pigment intensifies with development: 6 bands on body and fins, 3 major, 3 minor (see table below) Glyptocephalus cynoglossus Hippoglossoides platessoides Total myomeres 58–60 44–47 Preanus length <33%TL >35%TL Postanal pigment bars 3 major, 3 minor 3 with light scattering between Finfold pigment Bars extend onto finfold None Flexion size 14–20 mm 9–19 mm Ventral pigment Scattering anterior to anus Line from anus to isthmus Early Juvenile: Occurs in nursery habitats on continental slope E. -
Collapse and Recovery of Marine Fishes
letters to nature sulphide complexes, indicating that Cu sulphide clusters are more 7. Al-Farawati, R. & van den Berg, C. M. G. Metal-sulfide complexation in seawater. Mar. Chem. 63, 331–352 (1999). stable than Cu organic complexes. This explains why laboratory 8. Luther III, G. W., Rickard, D. T., Theberge, S. M. & Olroyd, A. Determination of metal (bi)sulfide cultures of oceanic phytoplankton have been observed to increase stability constants of Mn2+,Fe2+,Co2+,Ni2+,Cu2+, and Zn2+ by voltammetric methods. Environ. Sci. the production of total dissolved sulphides when the concentrations Technol. 30, 671–679 (1996). of free Cu and Zn in the culture media were increased22. Although 9. Helz, G. R, Charnock, J. M., Vaughan, D. J. & Garner, C. D. Multinuclearity of aqueous copper and zinc bisulfide complexes—an EXAFS investigation. Geochim. Cosmochim. Acta 57, the data that we report here suggest that metal sulphide formation is 15–25 (1993). a means of detoxifying trace metals for organisms, further toxico- 10. Luther III, G. W., Theberge, S. M. & Rickard, D. T. Evidence for aqueous clusters as intermediates logical studies are needed to quantify the roles both sulphides and during zinc sulfide formation. Geochim. Cosmochim. Acta 19/20, 3159–3169 (1999). ‘natural’ organic ligands play in controlling Cu toxicity in natural 11. Peters, J. W., Lanzilotta, W. N., Lemon, B. J. & Seefeldt, L. C. X-ray crystal structure of the Fe-only hydrogenase (Cpl) from Clostridium pasteurianum to 1.8 angstrom resolution. Science 282, 1853– waters. 1858 (1998). Sulphur complexation may have a dramatic effect on the acute 12. -
Appendix 13.2 Marine Ecology and Biodiversity Baseline Conditions
THE LONDON RESORT PRELIMINARY ENVIRONMENTAL INFORMATION REPORT Appendix 13.2 Marine Ecology and Biodiversity Baseline Conditions WATER QUALITY 13.2.1. The principal water quality data sources that have been used to inform this study are: • Environment Agency (EA) WFD classification status and reporting (e.g. EA 2015); and • EA long-term water quality monitoring data for the tidal Thames. Environment Agency WFD Classification Status 13.2.2. The tidal River Thames is divided into three transitional water bodies as part of the Thames River Basin Management Plan (EA 2015) (Thames Upper [ID GB530603911403], Thames Middle [ID GB53060391140] and Thames Lower [ID GB530603911401]. Each of these waterbodies are classified as heavily modified waterbodies (HMWBs). The most recent EA assessment carried out in 2016, confirms that all three of these water bodies are classified as being at Moderate ecological potential (EA 2018). 13.2.3. The Thames Estuary at the London Resort Project Site is located within the Thames Middle Transitional water body, which is a heavily modified water body on account of the following designated uses (Cycle 2 2015-2021): • Coastal protection; • Flood protection; and • Navigation. 13.2.4. The downstream extent of the Thames Middle transitional water body is located approximately 12 km downstream of the Kent Project Site and 8 km downstream of the Essex Project Site near Lower Hope Point. Downstream of this location is the Thames Lower water body which extends to the outer Thames Estuary. 13.2.5. A summary of the current Thames Middle water body WFD status is presented in Table A13.2.1, together with those supporting elements that do not currently meet at least Good status and their associated objectives. -
Hyperpigmentation in North Sea Dab Limanda Limanda. I. Spatial and Temporal Patterns and Host Effects
Vol. 103: 9–24, 2013 DISEASES OF AQUATIC ORGANISMS Published March 13 doi: 10.3354/dao02554 Dis Aquat Org OPENPEN ACCESSCCESS Hyperpigmentation in North Sea dab Limanda limanda. I. Spatial and temporal patterns and host effects F. Grütjen1, T. Lang2,*, S. Feist3, D. Bruno4, P. Noguera4, W. Wosniok5 1Department of Biological Sciences, Zoology, University of Rostock, 18055 Rostock, Germany 2Thünen Institute of Fisheries Ecology, 27472 Cuxhaven, Germany 3Centre for the Environment, Fisheries and Aquaculture Science, Weymouth, Dorset DT4 8UB, UK 4Marine Scotland Science, Aberdeen AB11 9DB, UK 5Institute of Statistics, University of Bremen, 28334 Bremen, Germany ABSTRACT: Hyperpigmentation is a term describing a specific pigment anomaly affecting com- mon dab Limanda limanda in the North Sea and, less frequently, in adjacent areas, e.g. the Eng- lish Channel, Irish and Celtic Seas, western Baltic Sea and Icelandic waters. Other North Sea flat- fish species are also affected, but at a markedly lower prevalence. The condition is characterised by the occurrence of varying degrees of green to black patchy pigment spots in the skin of the upper (ocular) body side and pearly-white pigment spots in the skin of the lower (abocular) body side. In the course of fish disease monitoring programmes carried out by Germany and the UK (England and Scotland), a pronounced spatial pattern of hyperpigmentation has been detected in the North Sea. An increase in prevalence has been recorded in almost all North Sea areas studied in the past 2 decades. The prevalence recorded in hot spot areas of the condition increased from 5 to >40% between 1988 and 2009. -
Downloaded for Five Nuclear Genes 243 (KIAA1239, MYH6, RIPK4, RAG1, SH3PX3), and Four Mitochondrial Genes (12S, 16S, 244 COX1 and CYTB)
bioRxiv preprint doi: https://doi.org/10.1101/247304; this version posted March 26, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 2 How the Central American Seaway and 3 an ancient northern passage affected 4 flatfish diversification 5 6 Lisa Byrne1, François Chapleau1, and Stéphane Aris-Brosou*,1,2 7 8 1Department of Biology, University of Ottawa, Ottawa, ON, CANADA 9 2Department of Mathematics & Statistics, University of Ottawa, Ottawa, ON, CANADA 10 11 *Corresponding author: E-mail: [email protected] 12 1 bioRxiv preprint doi: https://doi.org/10.1101/247304; this version posted March 26, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 13 Abstract 14 While the natural history of flatfish has been debated for decades, the mode of 15 diversification of this biologically and economically important group has never been 16 elucidated. To address this question, we assembled the largest molecular data set to date, 17 covering > 300 species (out of ca. 800 extant), from 13 of the 14 known families over 18 nine genes, and employed relaxed molecular clocks to uncover their patterns of 19 diversification. As the fossil record of flatfish is contentious, we used sister species 20 distributed on both sides of the American continent to calibrate clock models based on 21 the closure of the Central American Seaway (CAS), and on their current species range. -
Mellergaard3
Downloaded from orbit.dtu.dk on: Oct 01, 2021 Epidemiology of X-cell gill disease in common dab Limanda limanda Mellergaard, Stig; Nielsen, Else Published in: Diseases of Aquatic Organisms Link to article, DOI: 10.3354/dao025107 Publication date: 1996 Document Version Publisher's PDF, also known as Version of record Link back to DTU Orbit Citation (APA): Mellergaard, S., & Nielsen, E. (1996). Epidemiology of X-cell gill disease in common dab Limanda limanda. Diseases of Aquatic Organisms, 25(1-2), 107-116. https://doi.org/10.3354/dao025107 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Users may download and print one copy of any publication from the public portal for the purpose of private study or research. You may not further distribute the material or use it for any profit-making activity or commercial gain You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. DISEASES OF AQUATIC ORGANISMS Vol. 25: 107-116, 1996 Published May 9 Dis Aquat Org Epidemiology of X-cell gill disease in common dab Limanda limanda Stig ~ellergaard'~*,Else ~ielsen~ 'Danish Institute for Fisheries Research, Department for Marine and Coastal Zone Ecology, Fish Disease Laboratory, Biilowsvej 13, DK-1870 Frederiksberg C, Denmark 'Danish Institute for Fisheries Research, Department for Marine and Coastal Zone Ecology, Charlottenlund Castle, DK-2920 Charlottenlund. -
5. the Pesciara-Monte Postale Fossil-Lagerstätte: 2. Fishes and Other Vertebrates
Rendiconti della Società Paleontologica Italiana, 4, 2014, pp. 37-63 Excursion guidebook CBEP 2014-EPPC 2014-EAVP 2014-Taphos 2014 Conferences The Bolca Fossil-Lagerstätten: A window into the Eocene World (editors C.A. Papazzoni, L. Giusberti, G. Carnevale, G. Roghi, D. Bassi & R. Zorzin) 5. The Pesciara-Monte Postale Fossil-Lagerstätte: 2. Fishes and other vertebrates [ CARNEVALE, } F. BANNIKOV, [ MARRAMÀ, ^ C. TYLER & ? ZORZIN G. Carnevale, Dipartimento di Scienze della Terra, Università degli Studi di Torino, Via Valperga Caluso 35, I-10125 Torino, Italy; [email protected] A.F. Bannikov, Borisyak Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya 123, Moscow 117997, Russia; [email protected] G. Marramà, Dipartimento di Scienze della Terra, Università degli Studi di Torino, Via Valperga Caluso, 35 I-10125 Torino, Italy; [email protected] J.C. Tyler, National Museum of Natural History, Smithsonian Institution (MRC-159), Washington, D.C. 20560 USA; [email protected] R. Zorzin, Sezione di Geologia e Paleontologia, Museo Civico di Storia Naturale di Verona, Lungadige Porta Vittoria 9, I-37129 Verona, Italy; [email protected] INTRODUCTION ][` ~[~ `[ =5} =!+~ [=5~5 Ceratoichthys pinnatiformis5 #] ~}==5[ ~== }}=OP[~` [ "O**""P "}[~* "+5$!+? 5`=5` ~]!5`5 =5=[~5_ O"!P#! [=~=55~5 `#~! ![[[~= O"]!#P5`` `5} 37 G. Carnevale, A.F. Bannikov, G. Marramà, J.C. Tyler & R. Zorzin FIG. 1_Ceratoichthys pinnatiformis~=5"!Q5=` 5. The Pesciara-Monte Postale Fossil-Lagerstätte: 2. Fishes and other vertebrates `== `]5"`5`" O*!P[~ `= =5<=[ ~#_5` [#5!="[ [~OQ5=5""="P5 ` [~`}= =5^^+55 ]"5++"5"5* *5 [=5` _5 [==5 *5]5[=[[5* [5=~[` +~++5~5=!5 ["5#+?5?5[=~[+" `[+=\`` 5`55`_= [~===5[=[5 ```_`5 [~5+~++5 [}5` `=5} 5= [~5O# "~++[=[+ P5`5 ~[O#P #"5[+~` [=Q5 5" QRQ5$5 ][5**~= [`OQ= RP`=5[` `+5=+5`=` +5 _O# P5+5 O? ]P _ #`[5[=~ [+#+?5` !5+`}==~ `5``= "!=Q5 "`O? ]P+5 _5`~[ =`5= G. -
Liver Histopathology in Baltic Flounder
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Electronic Publication Information Center Marine Pollution Bulletin 53 (2006) 488–496 www.elsevier.com/locate/marpolbul Liver histopathology in Baltic flounder (Platichthys flesus)as indicator of biological effects of contaminants Thomas Lang a,*, Werner Wosniok b, Janina Barsˇiene_ c, Katja Broeg d, Justyna Kopecka e, Jari Parkkonen f a Federal Research Centre for Fisheries, Institute of Fishery Ecology, Deichstrasse 12, 27472 Cuxhaven, Germany b University of Bremen, Institute of Statistics, Bibliothekstrasse 1, 28334 Bremen, Germany c Institute of Ecology of Vilnius University, Akademijos 2, 08412 Vilnius, Lithuania d Alfred Wegener Institute for Polar and Marine Research, Am Handelsshafen 12, 27570 Bremerhaven, Germany e Institute of Oceanology, Powstancow Warszawy 55, P.O. Box 197, 81-712 Sopot, Poland f Gothenburg University, Box 463, 40530 Gothenburg, Sweden Abstract Results are presented of a study on liver histopathology in Baltic flounder (Platichthys flesus) carried out in 2001 and 2002 in four coastal sampling areas of the Baltic Sea: Kva¨do¨fja¨rden (Swedish east coast, reference area), Klaipeda-Butinge (Lithuanian coast), Gulf of Gdansk (Polish coast), and Wismar Bay (German coast) within the framework of the EU-funded BEEP project. Liver lesions were diagnosed and categorised using standardised methodologies and, for a spatial and temporal assessment of the prevalence and types of lesions detected, a scoring system was applied, involving the calculation of mean histopathology lesion scores. 83.0% of the 436 female flounder examined (size range: 20–43 cm total length, age range: 2–8 years) were affected by liver lesions, out of which 74.3% were assigned to the category of non-specific, 3.4% to the category of early toxicopathic non-neoplastic, 4.6% to the category of pre-neoplastic and 0.7% to the category of neoplastic lesions. -
Ambush Predator’ Guild – Are There Developmental Rules Underlying Body Shape Evolution in Ray-Finned Fishes? Erin E Maxwell1* and Laura AB Wilson2
Maxwell and Wilson BMC Evolutionary Biology 2013, 13:265 http://www.biomedcentral.com/1471-2148/13/265 RESEARCH ARTICLE Open Access Regionalization of the axial skeleton in the ‘ambush predator’ guild – are there developmental rules underlying body shape evolution in ray-finned fishes? Erin E Maxwell1* and Laura AB Wilson2 Abstract Background: A long, slender body plan characterized by an elongate antorbital region and posterior displacement of the unpaired fins has evolved multiple times within ray-finned fishes, and is associated with ambush predation. The axial skeleton of ray-finned fishes is divided into abdominal and caudal regions, considered to be evolutionary modules. In this study, we test whether the convergent evolution of the ambush predator body plan is associated with predictable, regional changes in the axial skeleton, specifically whether the abdominal region is preferentially lengthened relative to the caudal region through the addition of vertebrae. We test this hypothesis in seven clades showing convergent evolution of this body plan, examining abdominal and caudal vertebral counts in over 300 living and fossil species. In four of these clades, we also examined the relationship between the fineness ratio and vertebral regionalization using phylogenetic independent contrasts. Results: We report that in five of the clades surveyed, Lepisosteidae, Esocidae, Belonidae, Sphyraenidae and Fistulariidae, vertebrae are added preferentially to the abdominal region. In Lepisosteidae, Esocidae, and Belonidae, increasing abdominal vertebral count was also significantly related to increasing fineness ratio, a measure of elongation. Two clades did not preferentially add abdominal vertebrae: Saurichthyidae and Aulostomidae. Both of these groups show the development of a novel caudal region anterior to the insertion of the anal fin, morphologically differentiated from more posterior caudal vertebrae. -
MATT FRIEDMAN [email protected]
MATT FRIEDMAN [email protected] Lecturer in Palaeobiology, Deparment of Earth Sciences Tutor in Earth Sciences, St. Hugh’s College University of Oxford and Research Associate Department of Vertebrate Paleontology American Museum of Natural History EDUCATION 2003-2009 Committee on Evolutionary Ph.D., Evolutionary Biology Biology University of Chicago Chicago, Illinois 2003-2005 Committee on Evolutionary S.M., Evolutionary Biology Biology University of Chicago Chicago, Illinois 2002-2003 Department of Zoology and M.Phil., Zoology University Museum of Zoology University of Cambridge Thesis Title: “New elements of the Late Cambridge, UK Devonian lungfish Soederberghia groenlandica (Sarcopterygii: Dipnoi) 1998-2002 Department of Earth and B.S., Geological Sciences (Bio-geology) Environmental Sciences University of Rochester Rochester, NY EMPLOYMENT/INSTITUTIONAL AFFILIATIONS 2010-present Department of Paleontology Research Associate American Museum of Natural History New York, NY 2009-present Department of Earth Sciences Lecturer in Palaeobiology University of Oxford Oxford, UK 2009-present St. Hugh’s College Tutor in Earth Sciences Oxford, UK M. Friedman: curriculum vitae EMPLOYMENT/TEACHING EXPERIENCE 2012-present Department of Earth Sciences Course developer and instructor: Vertebrate University of Oxford Palaeobiology Oxford, UK 2011-present Department of Earth Sciences Course developer and instructor: Evolution University of Oxford Oxford, UK Course co-developer and instructor: Fossil Records 2010 Department of Ecology and Guest lecturer: -
American Sole (Family Achiridae) Diversity in North Carolina
American Sole (Family Achiridae) Diversity in North Carolina Along North Carolina’s shore there are three families of flatfish comprising five or six species having eyes on the right side of their body facing upward when lying in or atop the substrate (NCFishes.com; Tracy et al. 2020; Table 1; Figure 1). The families and species can be confusing to tell apart. The key characteristics provided in Table 1 should enable one to differentiate between the three families and this document will aid you in the identification of three species in the Family Achiridae (American Soles) in North Carolina. Generally, soles are small, flat, right-facing fishes (i.e., the left side of the body is on the substrate) with small, minute eyes and of little commercial or recreational value (Rohde et al. 2009). Table 1. The three families of right-facing flatfish found along and off the coast of North Carolina. Common Key Characteristics No. Family Name (adapted from Kells and Carpenter (2014); Munroe (2002a; 2002b)) Species • Preopercular margin not free, concealed by skin or represented only by a naked superficial groove. • Dorsal fin extending forward well in advance of eyes, the anterior rays concealed within a fleshy dermal envelope and difficult to see. Achiridae Soles • Lateral line essentially straight, without high arch over pectoral fin; often indistinct, but most readily seen on the eyed side, usually crossed at right angles by accessory branches (achirine lines) extending toward dorsal and anal fins; • Urinary papilla on eyed side. 2 or 3 • Preopercular margin free, not covered with skin and scales. -
External Morphology, Postcranial and Appendicular Osteology of Three
Neotropical Ichthyology, 16(2): e170164, 2018 Journal homepage: www.scielo.br/ni DOI: 10.1590/1982-0224-20170164 Published online: 16 July 2018 (ISSN 1982-0224) Copyright © 2018 Sociedade Brasileira de Ictiologia Printed: 30 June 2018 (ISSN 1679-6225) Original article External morphology, postcranial and appendicular osteology of three southwestern Atlantic flatfishes (Paralichthys, Paralichthyidae), and comparisons with other congeneric species Juan M. Díaz de Astarloa1, Thomas A. Munroe2, Philippe Béarez3, Mariano Gonzalez-Castro1 and Damián L. Castellini1 Comparisons of the external morphology and analysis of osteological features of the postcranial and appendicular skeletons of three southwestern Atlantic flatfish species of the genus Paralichthys (P. isosceles, P. orbignyanus and P. patagonicus) were carried out. Bones are described, and detailed morphological, morphometric and meristic characteristics of these flounders are given in order to provide information about the external and internal morphology of three species of Paralichthys occurring in the south-west Atlantic waters that add new information and will help regarding within the framework of a phylogenetic study of the group. Interspecific differences were found in the number of vertebrae and intermuscular bones, as well as in the morphology and morphometry of vertebrae, caudal skeletons, pectoral and pelvic girdle bones. Relationships between bones are discussed and bone characteristics compared with those found in other species of Paralichthys and in other pleuronectiform species. The position of Paralichthys isosceles within Paralichthys is discussed, along with other congeners such as P. triocellatus and P. oblongus. Keywords: Flatfishes, Identification key, Postcranial skeleton, Southwest-Atlantic, Taxonomy. Se llevaron a cabo comparaciones de la morfología externa y el análisis de las características osteológicas de los esqueletos postcraneal y apendicular de tres especies de peces planos del Atlántico sudoccidental del género Paralichthys (P.