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Redalyc.Subcutaneous Photophores in the Jumbo Squid Dosidicus Gigas
Revista de Biología Marina y Oceanografía ISSN: 0717-3326 [email protected] Universidad de Valparaíso Chile Lohrmann, Karin B. Subcutaneous photophores in the jumbo squid Dosidicus gigas (d'Orbigny, 1835) (Cephalopoda: Ommastrephidae) Revista de Biología Marina y Oceanografía, vol. 43, núm. 2, agosto, 2008, pp. 275-284 Universidad de Valparaíso Viña del Mar, Chile Disponible en: http://www.redalyc.org/articulo.oa?id=47943205 Cómo citar el artículo Número completo Sistema de Información Científica Más información del artículo Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto Revista de Biología Marina y Oceanografía 43(2): 275-284, agosto de 2008 Subcutaneous photophores in the jumbo squid Dosidicus gigas (d’Orbigny, 1835) (Cephalopoda: Ommastrephidae) Fotóforos subcutáneos en el calamar gigante Dosidicus gigas (d’Orbigny, 1835) (Cephalopoda: Ommastrephidae) Karin B. Lohrmann1 1Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile. Larrondo 1281, Coquimbo, Chile [email protected] Resumen.- En Dosidicus gigas se observaron pequeñas Abstract.- In Dosidicus gigas small pale yellow ovoid inclusiones de color amarillo pálido embebidas a distintas inclusion bodies corresponded to subcutaneous photophores, profundidades en el músculo del manto, las que corresponden which were embedded in the mantle muscle, at differing depths. a fotóforos. A nivel histológico los fotóforos están formados At the histological level the photophores were composed of a por un tejido fotogenerador, que se tiñe de color naranja intenso photogenic tissue, which stained bright orange with Mallory con tinción tricrómica de Mallory y un tejido vacuolar, que lo triple stain. -
Spermatophore Transfer in Illex Coindetii (Cephalopoda: Ommastrephidae)
Spermatophore transfer in Illex coindetii (Cephalopoda: Ommastrephidae) TREBALL DE FI DE GRAU GRAU DE CIÈNCIES DEL MAR EVA DÍAZ ZAPATA Institut de Ciències del Mar (CSIC) Universitat de Barcelona Tutors: Fernando Ángel Fernández-Álvarez i Roger Villanueva 05, 2019 RESUMEN CIENTÍFICO La transmisión de esperma desde el macho a la hembra es un proceso crítico durante la reproducción que asegura la posterior fecundación de oocitos. Durante el apareamiento, los machos de los cefalópodos incrustan en el tejido de la hembra paquetes de esperma denominados espermatóforos mediante un complejo proceso de evaginación conocido como reacción espermatofórica. Estos reservorios de esperma incrustados en el cuerpo de la hembra se denominan espermatangios. En este estudio se han analizado machos y hembras maduros de Illex coindetii recolectados desde diciembre del 2018 hasta abril del 2019 en la lonja de pescadores de Vilanova i la Geltrú (Mediterráneo NO). El objetivo de este estudio es entender cómo se produce la transmisión de los espermatóforos en esta especie carente de órganos especiales para el almacenamiento de esperma (receptáculos seminales). En los ejemplares estudiados se cuantificó el número de espermatóforos y espermatangios y mediante experimentos in vitro se indujo la reacción espermatofórica para describir el proceso de liberación del esperma. Los resultados han demostrado que los machos maduros disponen entre 143 y 1654 espermatóforos y las hembras copuladas presentan entre 35 y 668 espermatangios en su interior. La inversión reproductiva en cada cópula realizada por los machos oscila entre el 2 y el 40 % del número de espermatóforos disponibles en un momento dado. En experimentos realizados in vitro, la reacción espermatofórica se inicia espontáneamente tras entrar el espermatóforo en contacto con el agua de mar. -
Ommastrephidae 199
click for previous page Decapodiformes: Ommastrephidae 199 OMMASTREPHIDAE Flying squids iagnostic characters: Medium- to Dlarge-sized squids. Funnel locking appara- tus with a T-shaped groove. Paralarvae with fused tentacles. Arms with biserial suckers. Four rows of suckers on tentacular clubs (club dactylus with 8 sucker series in Illex). Hooks never present hooks never on arms or clubs. One of the ventral pair of arms present usually hectocotylized in males. Buccal connec- tives attach to dorsal borders of ventral arms. Gladius distinctive, slender. funnel locking apparatus with Habitat, biology, and fisheries: Oceanic and T-shaped groove neritic. This is one of the most widely distributed and conspicuous families of squids in the world. Most species are exploited commercially. Todarodes pacificus makes up the bulk of the squid landings in Japan (up to 600 000 t annually) and may comprise at least 1/2 the annual world catch of cephalopods.In various parts of the West- ern Central Atlantic, 6 species of ommastrephids currently are fished commercially or for bait, or have a potential for exploitation. Ommastrephids are powerful swimmers and some species form large schools. Some neritic species exhibit strong seasonal migrations, wherein they occur in huge numbers in inshore waters where they are accessable to fisheries activities. The large size of most species (commonly 30 to 50 cm total length and up to 120 cm total length) and the heavily mus- cled structure, make them ideal for human con- ventral view sumption. Similar families occurring in the area Onychoteuthidae: tentacular clubs with claw-like hooks; funnel locking apparatus a simple, straight groove. -
Life History of the Neon Flying Squid: Effect of the Oceanographic Regime
Vol. 378: 1–11, 2009 MARINE ECOLOGY PROGRESS SERIES Published March 12 doi: 10.3354/meps07873 Mar Ecol Prog Ser OPENPEN ACCESSCCESS FEATURE ARTICLE Life history of the neon flying squid: effect of the oceanographic regime in the North Pacific Ocean Taro Ichii1,*, Kedarnath Mahapatra2, Mitsuo Sakai1, Yoshihiro Okada3 1National Research Institute of Far Seas Fisheries, 2-12-4 Fukuura, Kanazawa, Yokohama-city, Kanagawa 236-8648, Japan 2Tokai University Frontier Ocean Research Center (T-FORCE), 3-20-1 Orido, Shimizu-ward, Shizuoka-city, Shizuoka 424-8610, Japan 3School of Marine Science and Technology, Tokai University, 3-20-1 Orido, Shimizu-ward, Shizuoka-city, Shizuoka 424-8610, Japan ABSTRACT: The North Pacific Ocean population of the neon flying squid Ommastrephes bartramii, which un- dertakes seasonal north–south migrations, consists of autumn and winter–spring spawning cohorts. We ex- amined life history differences between the 2 cohorts in relation to the oceanographic environment. The differ- ences could be explained by seasonal north–south movements of the following 2 oceanographic zones: (1) the optimum spawning zone defined by sea surface temperatures; and (2) the food-rich zone defined by the position of the transition zone chlorophyll front (TZCF). The 2 cohorts use the food-rich zone in different phases of their life cycles. The spawning grounds for the au- Hatchling of the neon flying squid Ommastrephes bartramii tumn cohort occur within the subtropical frontal zone Photo: M. Sakai (STFZ), characterized by enhanced productivity in win- ter due to its proximity to the TZCF, whereas the spawning grounds for the winter–spring cohort occur within the subtropical domain, which is less productive. -
The Systematics and Distribution of Oceanic Cephalopods in the South China Sea, Area IV: Vietnamese Waters
The systematics and distribution of oceanic cephalopods in the South China Sea, Area IV: Vietnamese waters Item Type book_section Authors Nateewathana, Anuwat; Siriraksophon, Somboon; Munprasit, Aussanee Publisher Secretariat, Southeast Asian Fisheries Development Center Download date 26/09/2021 02:08:23 Link to Item http://hdl.handle.net/1834/40646 Proceedings of the SEAFDEC Seminar on Fishery Resources in the South China Sea, Area IV : Vietnamese Waters The Systematics and Distribution of Oceanic Cephalopods in the South China Sea, Area IV: Vietnamese Waters Anuwat Nateewathana,1 Somboon Siriraksophon2 and Aussanee Munprasit2 1. Fisheries Museum of Natural History, Department of Fisheries, Bangkok 10900, Thailand 2 Southeast Asian Fisheries Development Center (SEAFDEC/TD), Samut Prakarn, 10290, Thailand ABSTRACT Oceanic cephalopod exploration was conducted by M.V. SEAFDEC in Vietnamese waters during 21 April- 5 June 1999, as part of SEAFDEC’s collaborative research survey on the fisheries resources of the South China Sea Area IV (Vietnamese waters) with focus on tuna, oceanic squid and other highly migratory species. Squid fishing activities were conducted in 10 stations, ranging in the depth from 600-4000 m, using four automatic jigging machines at night. The purpleback flying squid, Sthenoteuthis oualaniensis (Lesson, 1830) was the only species caught throughout the fishing area. Diagnosis and distribution of the species in the study area are reported. Key words: South China Sea; Vietnam; systematics; oceanic squids; squid jigging; Ommastrephidae; Sthenoteuthis oualaniensis Introduction Oceanic squids spend their entire life span in the open ocean. More than 200 oceanic species have been described from the world oceans (Worms, 1983). Of these, some species are commercially and potentially important. -
Updated-Molecular-Phylogeny.Pdf
Molecular Phylogenetics and Evolution 120 (2018) 212–217 Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev Short Communication Updated molecular phylogeny of the squid family Ommastrephidae: Insights T into the evolution of spawning strategies ⁎ M. Cecilia Pardo-Gandarillasa, Felipe I. Torresa,b, Dirk Fuchsc, Christian M. Ibáñezb, a Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Ñuñoa, Santiago, Chile b Departamento de Ecología y Biodiversidad, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, República 440, Santiago, Chile c Department of Natural History Sciences, Hokkaido University, Sapporo, Hokkaido, Japan ARTICLE INFO ABSTRACT Keywords: Two types of spawning strategy have been described for ommastrephid squids: coastal and oceanic. It has been Cephalopoda suggested that ancestral ommastrephids inhabited coastal waters and expanded their distribution into the open Evolution ocean during global changes in ocean circulation in the Oligocene. This hypothesis could explain the different Reproduction reproductive strategies in oceanic squids, but has never been tested in a phylogenetic context. In the present Ancestral states study, we assess the coastal-to-open-ocean hypothesis through inferring the evolution of reproductive traits Divergence times (spawning type) of ommastrephid squids using the phylogenetic comparative method to estimate ancestral states and divergence times. This analysis was performed using a robust molecular phylogeny with three mitochondrial genes (COI, CYTB and 16S) and two nuclear genes (RHO and 18S) for nearly all species of ommastrephid squid. Our results support dividing the Ommastrephidae into the three traditional subfamilies, plus the monotypic subfamily Todaropsinae as proposed previously. -
Reproduction and Early Life of the Humboldt Squid
REPRODUCTION AND EARLY LIFE OF THE HUMBOLDT SQUID A DISSERTATION SUBMITTED TO THE DEPARTMENT OF BIOLOGY AND THE COMMITTEE ON GRADUATE STUDIES OF STANFORD UNIVERSITY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Danielle Joy Staaf August 2010 © 2010 by Danielle Joy Staaf. All Rights Reserved. Re-distributed by Stanford University under license with the author. This work is licensed under a Creative Commons Attribution- Noncommercial 3.0 United States License. http://creativecommons.org/licenses/by-nc/3.0/us/ This dissertation is online at: http://purl.stanford.edu/cq221nc2303 ii I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. William Gilly, Primary Adviser I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Mark Denny I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. George Somero Approved for the Stanford University Committee on Graduate Studies. Patricia J. Gumport, Vice Provost Graduate Education This signature page was generated electronically upon submission of this dissertation in electronic format. An original signed hard copy of the signature page is on file in University Archives. iii Abstract Dosidicus gigas, the Humboldt squid, is endemic to the eastern Pacific, and its range has been expanding poleward in recent years. -
Características Bioecológicas De Illex Coindetii (Verany, 1837) En El Mar
Características bioecológicas de Illex coindetii (Verany, 1837) en el Mar Catalán. i Memoria redactada para aspirar al grado de Doctor en Ciencias Bio lógicas por la Universidad de Bar celona, por: M& del Pilar Sánchez Zalacain Este trabajo ha sido dirigido por el Dr. Carlos Bas Peired, Profesor de Investigación del Instituto de Investi gaciones Pesqueras de Barcelona (C.S.I.C.) V- B¡2 Dr.D. Carlos Bas Peired A Bartomen INDICE 1 INTRODUCCION I» TAXONOMIA DE ILLEX COINDETII (VERANY, 1837) 8 1.1 Posición taxonómica de Illex coindetii 8 Esquema taxonómico 8 Nombre común 1.2 Diagnosis de la familia Ommastrephidae 11 Steenstrup,1857 1.3 Características del género Illex steens 1 7 trup, 1880 17 Diagnosis del género 19 Sinonimias de Illex coindetii 1.4 Descripción de la especie 20 II DISTRIBUCION Y HABITAT DE ILLEX COINDETII II.1 Material y métodos 27 lio 2 Distribución geográfica de Illex coindetii 33 lio 3 Características del área de estudio 35 Hidrografía 35 Temperatura 37 Naturaleza del fondo 38 II.4 Habitat y especies acompañantes 40 II.5 Distribución anual de las muestras 42 III CRECIMIENTO III.1 Morfometría de Illex coindetii 50 Relación longitud del manto-peso 51 Relación longitud del manto-anchura de la cabeza 62 Relación longitud del manto-anchura del manto , 68 Crecimiento de las mandíbulas de Illex coindetii 68 Estructura de las mandíbulas de Illex coindetii 71 Pigmenteción de las mandíbulas de I, coindetii 73 Análisis del crecimiento de las mandíbulas de lüex coindetii 79 Morfología de los estatolitos de I. coindetii 86 Descripción del estatolito de Illex coindetii 95 IH.2 Relación longitud del manto-edad 97 Método de Petersen 98 III.3 Estimación de los parámetros de la ecuación del crecimiento de v. -
Species Identification of Ommastrephes Bartramii, Dosidicus Gigas, Sthenoteuthis Oualaniensis and Illex Argentinus (Ommastrephidae) Using Beak Morphological Variables
Scientia Marina 76(3) September 2012, 473-481, Barcelona (Spain) ISSN: 0214-8358 doi: 10.3989/scimar.03408.05B Species identification of Ommastrephes bartramii, Dosidicus gigas, Sthenoteuthis oualaniensis and Illex argentinus (Ommastrephidae) using beak morphological variables XINJUN CHEN 1,2,3, HUAJIE LU 1, BILIN LIU 1,2,3, YONG CHEN 4,3, SILIANG LI 1 and MA JIN 1 1 College of Marine Sciences, Shanghai Ocean University, 999 Hucheng Ring Road, Shanghai 201306, China. E-mail: [email protected] 2 The Key Laboratory of the Shanghai Education Commission for Oceanic Fisheries Resources Exploitation, 999 Hucheng Ring Road, Shanghai 201306, China. 3 The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources (Shanghai Ocean University), Ministry of Education , 999 Hucheng Ring Road, Shanghai 201306, China. 4 School of Marine Sciences, University of Maine, Orono, ME 04469, U.S.A. SUMMARY: Four oceanic squid species, Ommastrephes bartramii, Dosidicus gigas, Sthenoteuthis oualaniensis and Il- lex argentinus, not only support important commercial fisheries, but also play a vital role in their marine ecosystems. It is therefore important to identify them in the analyses of their predators’ stomach contents as this can yield critical information on the trophic dynamics of ecosystems. Hard beaks of the four species frequently found in their predators’ stomachs can be used to identify them. In this study, to remove the effect of size differences among individuals, measurements of upper and lower beaks were standardized with an allometric model. A discriminant analysis was carried out to compare morphological differences among the four species and between the sexes for each species. -
Population Genetics of the Jumbo Squid Dosidicus Gigas (Cephalopoda
Fisheries Research 175 (2016) 1–9 Contents lists available at ScienceDirect Fisheries Research j ournal homepage: www.elsevier.com/locate/fishres Population genetics of the jumbo squid Dosidicus gigas (Cephalopoda: Ommastrephidae) in the northern Humboldt Current system based on mitochondrial and microsatellite DNA markers a a b c Gustavo Sanchez , Satoshi Tomano , Carmen Yamashiro , Ricardo Fujita , d e a,∗ Toshie Wakabayashi , Mitsuo Sakai , Tetsuya Umino a Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan b Unidad de Investigación en Invertebrados Marinos, Instituto del Mar del Perú, Esquina Gamarra y General Valle s/n, Chucuito, Callao, Peru c Centro de Genética y Biología Molecular, Facultad de Medicina Humana de la Universidad de San Martín de Porres, Lima, Peru d Department of Fisheries Science and Technology, National Fisheries University, Shimonoseki, Yamaguchi 759-6595, Japan e Tohoku National Fisheries Research Institute, Hachinohe, Aomori 031-0841, Japan a r t i c l e i n f o a b s t r a c t Article history: Jumbo squid, Dosidicus gigas, is commercially important species in the Eastern Pacific Ocean, principally Received 15 June 2015 in the Northern Humboldt Current System where is notably abundant. In this area, jumbo squid display Received in revised form 24 October 2015 difference in density at geographical level, in size of mature individuals and inter-annual demographic Accepted 4 November 2015 fluctuation. Thereby, a population genetics study of jumbo squid in this location is needed especially for Available online 21 November 2015 fisheries management. This study evaluated the population genetic of this squid (n = 120) based on novel microsatellite loci and 675 bp of the mtDNA ND2 divided into two groups according to the Geographical Keywords: density and Size at maturity. -
5.4. Cephalopods in the Canary Current Large Marine Ecosystem
Cephalopods in the Canary Current Large Marine Ecosystem Item Type Report Section Authors Rocha, Francisco; Cheikh, Inejih Publisher IOC-UNESCO Download date 28/09/2021 07:33:13 Link to Item http://hdl.handle.net/1834/9192 5.4. Cephalopods in the Canary Current Large Marine Ecosystem For bibliographic purposes, this article should be cited as: Rocha, F. and Cheikh, I. 2015. Cephalopods in the Canary Current Large Marine Ecosystem. In: Oceanographic and biological features in the Canary Current Large Marine Ecosystem. Valdés, L. and Déniz‐González, I. (eds). IOC‐ UNESCO, Paris. IOC Technical Series, No. 115, pp. 245‐255. URI: http://hdl.handle.net/1834/9192. The publication should be cited as follows: Valdés, L. and Déniz‐González, I. (eds). 2015. Oceanographic and biological features in the Canary Current Large Marine Ecosystem. IOC‐UNESCO, Paris. IOC Technical Series, No. 115: 383 pp. URI: http://hdl.handle.net/1834/9135. The report Oceanographic and biological features in the Canary Current Large Marine Ecosystem and its separate parts are available on‐line at: http://www.unesco.org/new/en/ioc/ts115. The bibliography of the entire publication is listed in alphabetical order on pages 351‐379. The bibliography cited in this particular article was extracted from the full bibliography and is listed in alphabetical order at the end of this offprint, in unnumbered pages. ABSTRACT This work presents a brief review of cephalopod fauna found in the Canary Current Large Marine Ecosystem waters in terms of biodiversity, ecology and fisheries. This large marine ecosystem presents 139 cephalopod species, including high commercial value groups (Ommastrephids, Loliginids, Octopods and Sepiids), corresponding to a transitional zone between different Atlantic zoogeographic provinces where tropical, temperate and cold water cephalopod species mix. -
Marine Flora and Fauna of the Eastern United States Mollusca: Cephalopoda
,----- ---- '\ I ' ~~~9-1895~3~ NOAA Technical Report NMFS 73 February 1989 Marine Flora and Fauna of the Eastern United States Mollusca: Cephalopoda Michael Vecchione, Clyde EE. Roper, and Michael J. Sweeney U.S. Departme~t_ oJ ~9f!l ~~rc~__ __ ·------1 I REPRODUCED BY U.S. DEPARTMENT OF COMMERCE i NATIONAL TECHNICAL INFORMATION SERVICE I ! SPRINGFIELD, VA. 22161 • , NOAA Technical Report NMFS 73 Marine Flora and Fauna of the Eastern United States Mollusca: Cephalopoda Michael Vecchione Clyde F.E. Roper Michael J. Sweeney February 1989 U.S. DEPARTMENT OF COMMERCE Robert Mosbacher, Secretary National Oceanic and Atmospheric Administration William E. Evans. Under Secretary for Oceans and Atmosphere National Marine Fisheries Service James Brennan, Assistant Administrator for Fisheries Foreword ~-------- This NOAA Technical Report NMFS is part ofthe subseries "Marine Flora and Fauna ofthe Eastern United States" (formerly "Marine Flora and Fauna of the Northeastern United States"), which consists of original, illustrated, modem manuals on the identification, classification, and general biology of the estuarine and coastal marine plants and animals of the eastern United States. The manuals are published at irregular intervals on as many taxa of the region as there are specialists available to collaborate in their preparation. These manuals are intended for use by students, biologists, biological oceanographers, informed laymen, and others wishing to identify coastal organisms for this region. They can often serve as guides to additional information about species or groups. The manuals are an outgrowth ofthe widely used "Keys to Marine Invertebrates of the Woods Hole Region," edited by R.I. Smith, and produced in 1964 under the auspices of the Systematics Ecology Program, Marine Biological Laboratory, Woods Hole, Massachusetts.