DOCSLIB.ORG

Kajikia Albida) and Roundscale Spearfish (Tetrapturus Georgii

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Kajikia Albida) and Roundscale Spearfish (Tetrapturus Georgii W&M ScholarWorks Dissertations, Theses, and Masters Projects Theses, Dissertations, & Master Projects 2014 Seasonal Movements, Habitat Utilization, and Comparative Scale Morphology of White Marlin (Kajikia albida) and Roundscale Spearfish (Tetrapturus georgii) Emily L. Loose College of William and Mary - Virginia Institute of Marine Science Follow this and additional works at: https://scholarworks.wm.edu/etd Part of the Aquaculture and Fisheries Commons, and the Marine Biology Commons Recommended Citation Loose, Emily L., "Seasonal Movements, Habitat Utilization, and Comparative Scale Morphology of White Marlin (Kajikia albida) and Roundscale Spearfish (Tetrapturus georgii)" (2014). Dissertations, Theses, and Masters Projects. Paper 1539617949. https://dx.doi.org/doi:10.25773/v5-6ym6-hv26 This Thesis is brought to you for free and open access by the Theses, Dissertations, & Master Projects at W&M ScholarWorks. It has been accepted for inclusion in Dissertations, Theses, and Masters Projects by an authorized administrator of W&M ScholarWorks. For more information, please contact [email protected]. Seasonal movements, habitat utilization, and comparative scale morphology of white marlin (Kajikia albida) and roundscale spearfish (Tetrapturus georgii) A Thesis Presented to The Faculty of the School of Marine Science The College of William and Mary in Virginia In Partial Fulfillment Of the Requirements for the Degree of Master of Science By Emily L. Loose 2014 APPROVAL SHEET This thesis is submitted in partial fulfillment of the requirements for the degree of M aster o f Science Emily Loose Approved, by the Committee, August 2014 ^ \ jo h n E. Graves, Ph.D. ^gpnmittee Chairman/Advisor Richard W. Brill, Ph.D. John M. Brubaker, Ph.D. Eric J. Hilton, Ph.D. DEDICATION To my mother, Linda Malee Loose (1947-2011), who wholeheartedly supported me in every adventure I have ever chosen, from traveling alone in remote corners of the globe to embarking on the journey through graduate school. Although my mom was very proud to see me start at VIMS, she was unable to see the completion of my journey here, and I dedicate this thesis to her memory. TABLE OF CONTENTS Page ACKNOWLEDGMENTS..........................................................................................................vi LIST OF TABLES.................................................................................................................... vii LIST OF FIGURES..................................................................... :...........................................viii ABSTRACT...............................................................................................................................xi CHAPTER 1: GENERAL INTRODUCTION.............................................................................. 2 White marlin biology ................................................................................................4 Fisheries .....................................................................................................................8 Management...........................................................................................................10 Stock status..............................................................................................................13 CHAPTER 2: SEASONAL MOVEMENTS AND HABITAT UTILIZATION.............................. 15 INTRODUCTION.......................... 16 MATERIALS AND METHODS...............................................................................................22 Pop-up satellite archival tags ............................................................................... 22 Relative abundance estimates and tagging ........................................................ 23 Data analyses..........................................................................................................24 RESULTS....................................................................................... 29 Relative abundance estimates ..............................................................................29 Tagging....................................................................................................................29 Seasonal movements ..............................................................................................31 Utilization of the water column ............................................................................ 39 DISCUSSION..........................................................................................................................45 Relative abundance estimates ..............................................................................45 Seasonal movements ............................................................................................. 47 Habitat utilization...................................................................................................52 CONCLUSIONS AND FUTURE WORK ..................................................................... 60 TABLES AND FIGURES CHAPTER 2..................................................................................... 63 CHAPTER 3: COMPARATIVE SCALE MORPHOLOGY...................................................... 103 INTRODUCTION.................................................................................................................104 MATERIALS AND METHODS.............................................................................................107 RESULTS..............................................................................................................................110 Skin patches ...........................................................................................................110 Squamation patterns........................................................................................... 112 Individual scales ....................................................................................................114 Morphological descriptions by region ................................................................115 White marlin individual scales by region ........................................................... 116 Roundscale spearfish individual scales by region ............................................. 120 DISCUSSION........................................................................................................................126 Between species comparison .............................................................................. 129 Denticular plates................................................................................................... 132 CONCLUSIONS AND FUTURE WORK............................................................................... 136 TABLES AND FIGURES CHAPTER 3...................................................................................140 LITERATURE CITED.............................................................................................................157 APPENDIX............................................................................................................................168 VITA..................................................................................................................................... 169 ACKNOWLEDGMENTS I would like to express my gratitude to my advisor, Dr. John Graves, who has supported me and my research, especially when my project hit a few bumps along the way. John, I greatly appreciated your lightning-fast turn-around on edits, your dedication to your students, the way your door was always open to us, and the camaraderie you inspired in the lab. Thanks to Dr. Eric Hilton for his enthusiasm and interest in my scale project, and for generously allowing me to use his lab. Although I never expected to find myself with a morphology project, Eric's sage advice and calming presence always insured that I left his office much more excited about my scale project than when I entered. To my other com m ittee members, Drs. Rich Brill, John Brubaker, and Andrij Horodysky, I extend my thanks for your ideas and input throughout this project. Funding sources helped to finance my work along the way. Thanks to the Guy Harvey Ocean Foundation and the International W om en's Fishing Association. I am very appreciative of all the fishermen who allowed me to ride along on their boats, including the owners, captains, and crews of the Delta Dawn, Viking 70, Waterman, South Jersey Champion, and the Healthy Grin. Special thanks to Pete Manuel of the Delta Dawn, who always welcomed me onboard, and made it his personal mission to help me get my tags out. Also special thanks to Pat Healy, Ryan Higgins, and Brian Comber. Although I didn't tag many fish from the Viking 7 0 ,1 greatly enjoyed my time with all of you, and loved hearing your theories on marlin and fishing. Thanks to the Motsko Family of the White Marlin Open, and the Weber Family of the Mid-Atlantic $500,000 for allowing me to take scale samples at your tournaments. I owe a great debt to friends at VIMS and beyond who helped me with various challenging analyses and/or software issues. Thanks to Ben Galuardi and Tim Lam, for generously sharing their knowledge of geolocation analyses, and to Brett Falterman for additional help along the way. Ben Marcek generously assisted me with various coding issues, and just as importantly, always had a bottle opener handy when I needed it. Josh Stone taught me enough ArcGIS to be dangerous, and always came to the rescue when I got myself into trouble.
Load more

Recommended publications
  • The 2016 SWFSC Billfish Newsletter
    The SouthwestSWFSC Fisheries 2016 Billfish Science Newsletter Center’s 2016 Billfish Newsletter Global Tagging Map El Niño fishing conditions Catch-Photo-Release mobile phone application IGFA Great Marlin Race and satellite tagging 1 Top Anglers and Captains of 2015 SWFSC 2016 Billfish Newsletter Table of Contents Special Foreword …………………………………………………………….. 3 An Inside Look ……………………………………………………………..… 4 Prologue …………………………………………………………………….… 5 Introduction ……………………………………………………………..….… 5 The International Billfish Angler Survey ………………………………....... 7 Pacific blue marlin 9 Striped marlin 10 Indo-Pacific sailfish 11 Black marlin 13 Shortbill spearfish 13 Broadbill swordfish 14 The Billfish Tagging Program ……………………………………………..... 14 The Hawaiian Islands 16 2015 Tagging-at-a-Glance Map 17 Baja California and Guerrero, Mexico 18 Southern California 18 Western Pacific 18 Top Anglers and Captains Acknowledgements ……………………………. 19 Top Tagging Anglers 19 Top Tagging Captains 21 Tag Recoveries ……………………………………………………………….. 21 Science in Action: “The IGFA Great Marlin Race and Marlin Tagging” 23 Acknowledgements ………………………………………………………....... 25 Angler Photos ……………………………………………………………..….. 26 Congratulations to Captain Teddy Hoogs of the Bwana for winning this year’s cover photo contest! Teddy photographed this spectacular marlin off the coast of Hawaii. Fish on! 2 Special Forward James Wraith, director of the SWFSC Cooperative Billfish Tagging Program since 2007, recently left the SWFSC to move back to Australia. James was an integral part of the Highly Migratory Species (HMS) program. In addition to day-to-day work, James planned and organized the research cruises for HMS at the SWFSC and was involved in tagging thresher, blue, and mako sharks in the Southern California Bight for many years. We are sad to see him go but are excited for his future opportunities and thankful for his many contributions to the program over the last 10 years.
    [Show full text]
  • Offshore Recreational Fisheries of Large Vulnerable Sharks and Teleost Fish in the Mediterranean Sea: First Information on Species Caught
    Short Communication Mediterranean Marine Science Indexed in WoS (Web of Science, ISI Thomson) and SCOPUS The journal is available on line at http://www.medit-mar-sc.net DOI: http://dx.doi.org/10.12681/mms.21938 Offshore recreational fisheries of large vulnerable sharks and teleost fish in the Mediterranean Sea: first information on species caught Nikolas PANAYIOTOU1,2, Sebastián BITON PORSMOGUER2, Dimitrios K. MOUTOPOULOS1 and Josep LLORET2 1 Department of Animal Production, Fisheries & Aquaculture, University of Patras, Greece 2 University of Girona, Institute of Aquatic Ecology, Faculty of Sciences, C/ Maria Aurèlia Capmany 69, E-17003 Girona, Catalonia, Spain Corresponding author: [email protected] Handling Editor: Stelios SOMARAKIS Received: 28 November 2019; Accepted: 24 February 2020; Published online: 30 April 2020 Abstract Large-sized pelagic sharks and teleost fish are vulnerable to overexploitation by professional fisheries. To date, however, little is known about the species caught through recreational fishing. The aim of this study is to assess the catch of pelagic sharks and teleost fish in the Mediterranean Sea by recreational fishermen through an analysis of publicly available videos posted on social media. Results revealed that several vulnerable species are caught by offshore recreational fishermen: blue shark (Prionace glau- ca), shortfin mako (Isurus oxyrinchus), thresher shark (Alopias vulpinus), sixgill shark (Hexanchus griseus), swordfish (Xiphias gladius), and Mediterranean spearfish (Tetrapturus belone). The most commonly caught species are blue shark and swordfish, the majority of which are juvenile and released back to sea. This paper proposes new measures for handling practices in order to protect these species. Keywords: Sharks; Pelagic fish; Recreational offshore fishing; Mediterranean Sea.
    [Show full text]
  • Striped Marlin (Kajikia Audax)
    I & I NSW WILD FISHERIES RESEARCH PROGRAM Striped Marlin (Kajikia audax) EXPLOITATION STATUS UNDEFINED Status is yet to be determined but will be consistent with the assessment of the south-west Pacific stock by the Scientific Committee of the Central and Western Pacific Fisheries Commission. SCIENTIFIC NAME STANDARD NAME COMMENT Kajikia audax striped marlin Previously known as Tetrapturus audax. Kajikia audax Image © I & I NSW Background lengths greater than 250cm (lower jaw-to-fork Striped marlin (Kajikia audax) is a highly length) and can attain a maximum weight of migratory pelagic species distributed about 240 kg. Females mature between 1.5 and throughout warm-temperate to tropical 2.5 years of age whilst males mature between waters of the Indian and Pacific Oceans.T he 1 and 2 years of age. Striped marlin are stock structure of striped marlin is uncertain multiple batch spawners with females shedding although there are thought to be separate eggs every 1-2 days over 4-41 events per stocks in the south-west, north-west, east and spawning season. An average sized female of south-central regions of the Pacific Ocean, as about 100 kg is able to produce up to about indicated by genetic research, tagging studies 120 million eggs annually. and the locations of identified spawning Striped marlin spend most of their time in grounds. The south-west Pacific Ocean (SWPO) surface waters above the thermocline, making stock of striped marlin spawn predominately them vulnerable to surface fisheries.T hey are during November and December each year caught mostly by commercial longline and in waters warmer than 24°C between 15-30°S recreational fisheries throughout their range.
    [Show full text]
  • Fao Species Catalogue
    FAO Fisheries Synopsis No. 125, Volume 5 FIR/S125 Vol. 5 FAO SPECIES CATALOGUE VOL. 5. BILLFISHES OF THE WORLD AN ANNOTATED AND ILLUSTRATED CATALOGUE OF MARLINS, SAILFISHES, SPEARFISHES AND SWORDFISHES KNOWN TO DATE UNITED NATIONS DEVELOPMENT PROGRAMME FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS FAO Fisheries Synopsis No. 125, Volume 5 FIR/S125 Vol.5 FAO SPECIES CATALOGUE VOL. 5 BILLFISHES OF THE WORLD An Annotated and Illustrated Catalogue of Marlins, Sailfishes, Spearfishes and Swordfishes Known to date MarIins, prepared by Izumi Nakamura Fisheries Research Station Kyoto University Maizuru Kyoto 625, Japan Prepared with the support from the United Nations Development Programme (UNDP) UNITED NATIONS DEVELOPMENT PROGRAMME FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS Rome 1985 The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory. city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. M-42 ISBN 92-5-102232-1 All rights reserved . No part of this publicatlon may be reproduced. stored in a retriewal system, or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwase, wthout the prior permission of the copyright owner. Applications for such permission, with a statement of the purpose and extent of the reproduction should be addressed to the Director, Publications Division, Food and Agriculture Organization of the United Nations Via delle Terme di Caracalla, 00100 Rome, Italy.
    [Show full text]
  • A Black Marlin, Makaira Indica, from the Early Pleistocene of the Philippines and the Zoogeography of Istiophorid B1llfishes
    BULLETIN OF MARINE SCIENCE, 33(3): 718-728,1983 A BLACK MARLIN, MAKAIRA INDICA, FROM THE EARLY PLEISTOCENE OF THE PHILIPPINES AND THE ZOOGEOGRAPHY OF ISTIOPHORID B1LLFISHES Harry L Fierstine and Bruce 1. Welton ABSTRACT A nearly complete articulated head (including pectoral and pelvic girdles and fins) was collected from an Early Pleistocene, upper bathyal, volcanic ash deposit on Tambac Island, Northwest Central Luzon, Philippines. The specimen was positively identified because of its general resemblance to other large marlins and by its rigid pectoral fin, a characteristic feature of the black marlin. This is the first fossil billfish described from Asia and the first living species of billfi sh positively identified in the fossil record. The geographic distribution of the two living species of Makaira is discussed, Except for fossil localities bordering the Mediterranean Sea, the distribution offossil post-Oligocene istiophorids roughly corresponds to the distribution of living adult forms. During June 1980, we (Fierstine and Welton, in press) collected a large fossil billfish discovered on the property of Pacific Farms, Inc., Tambac Island, near the barrio of Zaragoza, Bolinao Peninsula, Pangasinan Province, Northwest Cen­ tral Luzon, Philippines (Fig. 1). In addition, associated fossils were collected and local geological outcrops were mapped. The fieldwork continued throughout the month and all specimens were brought to the Natural History Museum of the Los Angeles County for curation, preparation, and distribution to specialists for study. The fieldwork was important because no fossil bony fish had ever been reported from the Philippines (Hashimoto, 1969), fossil billfishes have never been described from Asia (Fierstine and Applegate, 1974), a living species of billfish has never been positively identified in the fossil record (Fierstine, 1978), and no collection of marine macrofossils has ever been made under strict stratigraphic control in the Bolinao area, if not in the entire Philippines.
    [Show full text]
  • Status of Billfish Resources and the Billfish Fisheries in the Western
    SLC/FIAF/C1127 (En) FAO Fisheries and Aquaculture Circular ISSN 2070-6065 STATUS OF BILLFISH RESOURCES AND BILLFISH FISHERIES IN THE WESTERN CENTRAL ATLANTIC Source: ICCAT (2015) FAO Fisheries and Aquaculture Circular No. 1127 SLC/FIAF/C1127 (En) STATUS OF BILLFISH RESOURCES AND BILLFISH FISHERIES IN THE WESTERN CENTRAL ATLANTIC by Nelson Ehrhardt and Mark Fitchett School of Marine and Atmospheric Science, University of Miami Miami, United States of America FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS Bridgetown, Barbados, 2016 The designations employed and the presentation of material in this information product do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations (FAO) concerning the legal or development status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. The mention of specific companies or products of manufacturers, whether or not these have been patented, does not imply that these have been endorsed or recommended by FAO in preference to others of a similar nature that are not mentioned. The views expressed in this information product are those of the author(s) and do not necessarily reflect the views or policies of FAO. ISBN 978-92-5-109436-5 © FAO, 2016 FAO encourages the use, reproduction and dissemination of material in this information product. Except where otherwise indicated, material may be copied, downloaded and printed for private study, research and teaching purposes, or for use in non-commercial products or services, provided that appropriate DFNQRZOHGJHPHQWRI)$2DVWKHVRXUFHDQGFRS\ULJKWKROGHULVJLYHQDQGWKDW)$2¶VHQGRUVHPHQWRI XVHUV¶YLHZVSURGXFWVRUVHUYLFHVLVQRWLPSOLHGLQDQ\ZD\ All requests for translation and adaptation rights, and for resale and other commercial use rights should be made via www.fao.org/contact-us/licence-request or addressed to [email protected].
    [Show full text]
  • IATTC-94-01 the Tuna Fishery, Stocks, and Ecosystem in the Eastern
    INTER-AMERICAN TROPICAL TUNA COMMISSION 94TH MEETING Bilbao, Spain 22-26 July 2019 DOCUMENT IATTC-94-01 REPORT ON THE TUNA FISHERY, STOCKS, AND ECOSYSTEM IN THE EASTERN PACIFIC OCEAN IN 2018 A. The fishery for tunas and billfishes in the eastern Pacific Ocean ....................................................... 3 B. Yellowfin tuna ................................................................................................................................... 50 C. Skipjack tuna ..................................................................................................................................... 58 D. Bigeye tuna ........................................................................................................................................ 64 E. Pacific bluefin tuna ............................................................................................................................ 72 F. Albacore tuna .................................................................................................................................... 76 G. Swordfish ........................................................................................................................................... 82 H. Blue marlin ........................................................................................................................................ 85 I. Striped marlin .................................................................................................................................... 86 J. Sailfish
    [Show full text]
  • (Tetrapturus Albidus) Released from Commercial Pelagic Longline Gear in the Western North
    ART & EQUATIONS ARE LINKED 434 Abstract—To estimate postrelease Survival of white marlin (Tetrapturus albidus) survival of white marlin (Tetraptu- rus albidus) caught incidentally in released from commercial pelagic longline gear regular commercial pelagic longline fishing operations targeting sword- in the western North Atlantic* fish and tunas, short-duration pop- up satellite archival tags (PSATs) David W. Kerstetter were deployed on captured animals for periods of 5−43 days. Twenty John E. Graves (71.4%) of 28 tags transmitted data Virginia Institute of Marine Science at the preprogrammed time, includ- College of William and Mary ing one tag that separated from the Route 1208 Greate Road fish shortly after release and was Gloucester Point, Virginia 23062 omitted from subsequent analyses. Present address (for D. W. Kerstetter): Cooperative Institute for Marine and Atmospheric Studies Transmitted data from 17 of 19 Rosenstiel School for Marine and Atmospheric Science tags were consistent with survival University of Miami of those animals for the duration of 4600 Rickenbacker Causeway the tag deployment. Postrelease sur- Miami, Florida 33149 vival estimates ranged from 63.0% E-mail address (for D. W. Kerstetter): [email protected] (assuming all nontransmitting tags were evidence of mortality) to 89.5% (excluding nontransmitting tags from the analysis). These results indi- cate that white marlin can survive the trauma resulting from interac- White marlin (Tetrapturus albidus incidental catch of the international tion with pelagic longline gear, and Poey 1860) is an istiophorid billfish pelagic longline fishery, which targets indicate that current domestic and species widely distributed in tropi- tunas (Thunnus spp.) and swordfish international management measures cal and temperate waters through- (Xiphias gladius).
    [Show full text]
  • Validity, Identification, and Distribution of the Roundscale Spearfish, <I>Tetrapturus Georgii</I> (Teleostei: Istio
    BULLETIN OF MARINE SCIENCE, 79(3): 483–491, 2006 ValiDitY, IDentification, anD Distribution of THE RounDscale SPearfisH, TETRAPTURUS GEORGII (TELEOSTEI: ISTIOPHORIDAE): MorPHoloGical anD Molecular eviDence Mahmood S. Shivji, Jennifer E. Magnussen, Lawrence R. Beerkircher, George Hinteregger, Dennis W. Lee, Joseph E. Serafy, and Eric D. Prince ABSTRACT The roundscale spearfish, Tetrapturus georgii Lowe, 1840, is known only from four specimens from the Mediterranean and eastern North Atlantic. Additional specimens have not been identified since 1961, making the validity and distribution of this species unclear. Analysis of 16 billfish specimens from the western North Atlantic on the basis of scale morphology, anus position, and mitochondrial DNA confirms the validity of this species and extends its distribution. Mid-lateral scales are soft, notably rounded anteriorly, and bear 2–3 points distinct from those of the sympatric longbill spearfish Tetrapturus( pfluegeri Robins and de Sylva, 1963) and white marlin (Tetrapturus albidus Poey, 1860). Position of anus relative to first anal fin and a related morphometric ratio (distance from anus to first anal fin origin: height of first anal fin) are intermediate between T. pfluegeri and T. albidus. These characteristics match those described by Robins (1974) from the four eastern North Atlantic specimens of T. georgii. The mitochondrial ND4L, ND4, and cyt b gene sequences strongly support reciprocal monophyly of the western North Atlantic specimens relative to other Atlantic istiophorids. The difficulty in distinguishing between morphologically similar T. georgii and T. albidus in the field and the previ- ously unrecognized presence of T. georgii in the western North Atlantic has implica- tions for stock assessments of T.
    [Show full text]
  • Validity, Identification, and Distribution of the Roundscale Spearfish
    Nova Southeastern University NSUWorks Marine & Environmental Sciences Faculty Articles Department of Marine and Environmental Sciences NSUWorks Citation Mahmood S. Shivji, Jennifer E. Magnussen, Lawrence R. Beerkircher, George Hinteregger, Dennis W. Lee, Joseph E. Serafy, and Eric D. Prince. 2006. Validity, Identification, and Distribution of the Roundscale Spearfish, Tetrapturus georgii (Teleostei: Istiophoridae): Morphological and Molecular Evidence .Bulletin of Marine Science , (3) : 483 -491. https://nsuworks.nova.edu/occ_facarticles/374. This Article is brought to you for free and open access by the Department of Marine and Environmental Sciences at NSUWorks. It has been accepted for inclusion in Marine & Environmental Sciences Faculty Articles by an authorized administrator of NSUWorks. For more information, please contact [email protected]. 11-1-2006 Validity, Identification, and Distribution of the Roundscale Spearfish, Tetrapturus georgii (Teleostei: Istiophoridae): Morphological and Molecular Evidence Mahmood S. Shivji Nova Southeastern University, <<span class="elink">[email protected] Jennifer E. Magnussen Nova Southeastern University Lawrence R. Beerkircher National Oceanic and Atmospheric Administration George Hinteregger National Oceanic and Atmospheric Administration Dennis W. Lee National Oceanic and Atmospheric Administration See next page for additional authors Find out more information about Nova Southeastern University and the Halmos College of Natural Sciences and Oceanography. Follow this and additional works at: https://nsuworks.nova.edu/occ_facarticles Part of the Genetics and Genomics Commons, Marine Biology Commons, and the Oceanography and Atmospheric Sciences and Meteorology Commons This Article has supplementary content. View the full record on NSUWorks here: https://nsuworks.nova.edu/occ_facarticles/374 Authors Joseph E. Serafy National Oceanic and Atmospheric Administration, [email protected] Eric D.
    [Show full text]
  • 63Rd Annual Labor Day White Marlin Tournament
    Information THE OCEAN CITY MARLIN CLUB would like to extend a special thanks to our great sponsors. 63rd Annual Labor Day REGISTRATION White Marlin Level Sponsors: White Marlin Tournament Thursday, September 2 @ 6:30-8:00 p.m. Decatur Diner Ocean City Fishing Center Delaware Elevator Sunset Marina In-Person Captain’s Meeting 7:30 p.m. or Virtual Captain’s D.W. Burt Concrete Construction, Inc. SEPTEMBER 3, 4 & 5 2021 Meeting available on our website and Facebook. Over the You do not need to be phone registration available M-F 10:30-5:30 p.m. Blue Marlin Level Sponsors: a member of The Marlin Club to fish this tournament. 410-213-1613. A representative from each boat must Atlantic General Hospital Henley Construction Co. Inc. watch/attend the Captain’s Meeting. Bahia Marina Intrinsic Yacht & Ship Carey Distributors Ocean City Golf Club Open Bar - Beer & Wine Only & donated Appetizers by Consolidated Commercial Services PYY Marine Decatur Diner until 8:00 p.m. (while supplies last) DBS, Inc. Red Sun Custom Apparel Delmarvalous Photos Rt113 Boat Sales Fish in OC Ruth’s Chris Steak House AWARDS BANQUET September 5, 6:30-9:00 p.m. at the Club Billfish Level Sponsors: Awards Presentation: 8:00 p.m. Billfish Gear Ocean Downs Casino Four Tickets included with entry fee. Bluewater Yacht Sales PKS & Company, P.A. C & R Electrics, Inc. Premier Flooring Installation 1, Inc. C.J. Miller LLC Racetrack Auto & Marine FISHING DAYS Casual Designs Furniture SeaBoard Media Inc. (2 of 3) September 3, 4 & 5 Creative Concepts Steen Homes Lines In 8:00 a.m.
    [Show full text]
  • Diet of the White Marlin (Tetrapturus Albidus) from the Southwestern Equatorial Atlantic Ocean
    SCRS/2009/173 Collect. Vol. Sci. Pap. ICCAT, 65(5): 1843-1850 (2010) DIET OF THE WHITE MARLIN (TETRAPTURUS ALBIDUS) FROM THE SOUTHWESTERN EQUATORIAL ATLANTIC OCEAN P.B. Pinheiro1, T. Vaske Júnior2, F.H.V. Hazin2, P. Travassos3, M.T. Tolotti3 and T.M. Barbosa2 SUMMARY The aim of this study was to evaluate the diet of white marlin, regarding the number, weight, and frequency of occurrence of the prey items, prey-predator relationships, and feeding strategies in the southwestern equatorial Atlantic Ocean. A total of 257 white marlins were examined, of which 60 (23.3%) were male and 197 (76.7%) were female. Males ranged from 105 to 220 cm low jaw fork length (LJFL) and females ranged from 110 to 236 cm LJFL. Most prey (fish and cephalopods) ranged between 1.0 and 65.0 cm in body length, with a mean length around 10.1 cm. According to the IRI (Index of Relative Importance) ranking, the flying gurnard, Dactylopterus volitans, was the most important prey item, with 27.9% of occurrence, followed by the squid, Ornithoteuthis antillarum (Atlantic bird squid), with 21.2% occurrence. RÉSUMÉ Cette étude vise à évaluer le régime alimentaire des makaires blancs en ce qui concerne le nombre, poids et fréquence de présence des proies, la relation proie-prédateur et les stratégies trophiques dans l’Océan Atlantique équatorial sud-occidental. Un total de 257 makaires blancs ont été examinés, dont 60 (23,3%) étaient des mâles et 197 (76,7%) des femelles. La taille des mâles oscillait entre 105 et 220 cm (longueur maxillaire inférieur-fourche, LJFL) et celle des femelles entre 110 et 236 cm (LJFL).
    [Show full text]