MBNMS Ecosystem Observations 2006
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
In the Largenose Catshark Apristurus Nasutus (Carchariniformes: Scyliorhinidae) Off Juan Fernández Archipelago, Chile Revista De Biología Marina Y Oceanografía, Vol
Revista de Biología Marina y Oceanografía ISSN: 0717-3326 [email protected] Universidad de Valparaíso Chile Rodríguez, Sara M.; D'Elía, Guillermo; George-Nascimento, Mario New host and geographical record for Mooleptus rabuka (Nematoda: Gnathostomatidae) in the largenose catshark Apristurus nasutus (Carchariniformes: Scyliorhinidae) off Juan Fernández Archipelago, Chile Revista de Biología Marina y Oceanografía, vol. 47, núm. 1, abril, 2012, pp. 161-165 Universidad de Valparaíso Viña del Mar, Chile Available in: http://www.redalyc.org/articulo.oa?id=47923893016 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Revista de Biología Marina y Oceanografía Vol. 47, Nº1: 161-165, abril 2012 Research Note New host and geographical record for Mooleptus rabuka (Nematoda: Gnathostomatidae) in the largenose catshark Apristurus nasutus (Carchariniformes: Scyliorhinidae) off Juan Fernández Archipelago, Chile Nuevo hospedador y registro geográfico para Mooleptus rabuka (Nematoda: Gnathostomatidae) en el pejegato hocicón Apristurus nasutus (Carchariniformes: Scyliorhinidae) del Archipiélago Juan Fernández, Chile Sara M. Rodríguez1, Guillermo D’Elía2 and Mario George-Nascimento3 1Programa de Doctorado en Biología Marina, Facultad de Ciencias, Universidad Austral de Chile, campus Isla Teja s/n, Valdivia, Chile. [email protected] 2Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, campus Isla Teja s/n, Casilla 567, Valdivia, Chile 3Departamento de Ecología, Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Casilla 297, Concepción, Chile Abstract.- The adult stage of the gnathostomatid nematode Mooleptus rabuka, is recorded for the first time from the stomach and intestine of the largenose catshark Apristurus nasutus, off Juan Fernández Archipelago, Chile. -
Fishery Bulletin/U S Dept of Commerce National Oceanic
ASPECTS OF THE BIOWGY OF TWO SCYLIORHINID SHARKS, APRISTURUS BRUNNEUS AND PARMATURUS XANIURUS, FROM THE UPPER CONTINENTAL SWPE OFF SOUTHERN CALIFORNIA JEFFREY N. CROSSI ABSTRACf The distribution. abundance, reproductive cycle. and food habits of two scyliorhinid sharks are discussed. Catsharks occurred on 87% of 71 longline sets and in 6% of 48 trawls. Longline catches were stratified by habitat into banks (hard substrate) and mud (soft substrate). ApriBtu'l"lUl brllnnell.8 occurred more frequently on mud sets than on bank sets. but its abundance was similar in both habitats. Pa'MIlaturus :l'a·t/.iu~ oC<.'l1rred equally frequently on mud and bank sets, but it was more abundant on bank sets. Catches of both species consisted of adults and adolescents; juveniles were rare or absent. Historical collections suggest that juveniles are mesopelagic. Male P. zaniurull matured ata smaller size than male A. brrt1meus. Females of both species matured at about the same size and fecundity increased with female size. The proportion of body weight devoted to gonads and maximum oocyte size were greater among P. 2:a1liurus, but fecundity and the proportion of females carrying egg cases were greater among A. brun'IU.l1ts. Seasonal changes in gonadal develop ment were not well defined for either species. Members of both populations may have been reproduc tively active throughout the year. The diets of both species comprised. in order of importance, crustaceans, teleosts, and squids. Most prey consumed were pelagic; however, it is not known where in the water column the catsharks obtained their prey. The Scyliorhinidae is the largest family of living ParmatWr1"S Xa11Jiu1'US Gilbert, the filetail cat sharks with about 94 valid species (Nelson 1984). -
Tribal Canoe Journeys Port Townsend the Quinault Indian Nation Hosted “Paddle to Oct
Volunteer Newsletter - AUG 2013 UPCOMING EVENTS THANK YOU ALL! Aug. 10th – COASST Training or Refresher During the month of July, the OCDC received 1,704 Session, DNR in Forks visitors with a total of 16 docents contributing 136 Aug. 15th - 18th – Clallam County Fair, volunteer hours! We couldn’t do it without you; thank Port Angeles you for being part of our sanctuary community. Aug. 23rd - 25th – Makah Days, Neah Bay Aug. 31st - Sept. 2nd – Labor Day weekend Sept. 6th - 8th – Wooden Boat Festival, Tribal Canoe Journeys Port Townsend The Quinault Indian Nation hosted “Paddle to Oct. 5th - 6th – Last Chance Salmon Derby, Quinault”, an annual Canoe Journey revitalized LaPush in 1989 to bring together Northwest tribes and Oct. 12th - 13th – Dungeness Crab & to celebrate their cultural traditions. Nearly Seafood Fest, Port Angeles. Olympic Coast 100 canoes—all carved out of native Cedar Discovery Center will be open that weekend trees—representing the different tribes from the and will have a separate booth on the city pier. The OCDC will remain open on weekends only (10am- 5pm) in September through Oct. 13th before closing for the fall/ winter. Beachcombers or Birders Wanted! Help make a difference for the environment by collecting data for the Coastal Observation and Seabird Survey Team (COASST)! Volunteers need NO experience with birds, just a commitment Northwest region, arrived to Point Grenville in to survey a specific beach (about 3/4 mile) each early August. Each year the canoe journeys bring month. If interested, join COASST for a free the tribes together to exchange stories, ideas, dance training on Sat., Aug. -
Snakes, Centipedes, Snakepedes, and Centiserpents: Conflation of Liminal Species in Maya Iconography and Ethnozoology
f No. 9, 2004 WAYEB NOTES ISSN 1379-8286 SNAKES, CENTIPEDES, SNAKEPEDES, AND CENTISERPENTS: CONFLATION OF LIMINAL SPECIES IN MAYA ICONOGRAPHY AND ETHNOZOOLOGY. (Workshop Closing Paper Presented at the XXIVth Linda Schele Forum on Maya Hieroglyphic Writing at the University of Texas at Austin, March 2000) Harri Kettunen1 and Bon V. Davis II2 1 University of Helsinki 2 University of Texas at Austin Abstract Since the identification of centipedes in the Maya hieroglyphic corpus and iconography in 1994 by Nikolai Grube and Werner Nahm (Grube & Nahm 1994: 702), epigraphers and iconographers alike have debated whether the serpentine creatures in Maya iconography depict imaginative snakes or centipedes. In this paper we argue that most serpentine creatures with unrealistically depicted heads are neither snakes nor centipedes, but a conflation of both, and even have characteristics of other animals, such as sharks and crocodiles. Thus these creatures should more aptly be designated as zoomorphs, monsters, centiserpents, or dragons. In the present article the topic will be examined using iconographic, epigraphic, zoological, and ethozoological data. Acknowledgements We would like to express our thanks to Justin Kerr for directing the Workshop on Maya ceramics at the XXIVth Maya Meeting in Austin. We would also like to thank Justin for making available hundreds of roll-out photographs of Maya ceramics and for offering us his insights on Maya iconography. Furthermore, we would like to thank Nancy Elder, the head librarian of the Biological Sciences Library at the University of Texas at Austin for providing us numerous articles relating to our topic and for directing us to relevant sources during our research on centipedes. -
THE PINNIPEDS of the CALIFORNIA CURRENT California
ANTONELIS AND FISCUS: PINNIPEDS OF THE CALIFORNIA CURRENT CalCOFI Rep., Vol. XXI, 1980 THE PINNIPEDS OF THE CALIFORNIA CURRENT GEORGE A. ANTONELIS. JR. AND CLIFFORD H. FISCUS Marine Mammal Division Northwest and Alaska Fisheries Center National Marine Fisheries Service National Oceanic and Atmospheric Administration 7600 Sand Point Way, N.E. Seattle, WA 981 15 ABSTRACT 10s pequenos peces en 10s cardumenes y peces ana- There are six species of pinnipeds-California sea dromos. Los dos focidos, otra vez con ciertas excep- lion, Zalophus californianus; northern sea lion, Eume- ciones, predan especies diferentes. Aparentemente, el topias jubatus; northern fur seal, Callorhinus ursinus; elefante marino se alimenta en aguas mas profundas que Guadalupe fur seal, Arctocephalus townsendi; harbor la foca peluda, alimentindose de especies demersales seal, Phoca uitulina richardsi; and northern elephant y benticas, y la foca peluda se alimenta de especiesdemer- seal, Mirounga angustirostris-that inhabit the study sales costeras y neriticas, entrando ocasionalmente en rios area of the California Cooperative Oceanic Fisheries y aguas estuarinas haciendopresa de 10s peces anadromos Investigations (CalCOFI). y otros pequeiios peces que entran regularmente en estas The numbers of animals in each population are given; aguas. the size, distribution, and seasonal movements are de- scribed. The known prey species of the pinnipeds are INTRODUCTION listed for each species. The otariids, with certain excep- The California Current, its components, and the Cali- tions, consume the same kinds of prey, although in slight- fornia Cooperative Oceanic Fisheries Investigations ly different amounts. In general they feed most commonly (CalCOFI) station plan have been described many times on the smaller schooling fishes and squids of the epi- in the past and are well known (Kramer et al. -
Conclusions GRS 1 3 5 6 8 9 10 12 16 18 20 21 31 35 36 38 40 42 45 GREENLAND SEA
a a b c d e a) b) c) d) e) Lynghammar University of Tromsø, Norway, A., Christiansen University of Washington,, J. USAS., Gallucci Murmansk Marine, V. BiologicalF., Karamushko Institute, Russia California, O. V., AcademyMecklenburg of Sciences, USA, C. Natural W. History& Møller Museum ,of P. Denmark R. Contact: [email protected] introduction The sea ice cover decreases and human activity increases in Arctic waters. Fisheries (by-catch issues), shipping and petroleum exploita- tion (pollution issues) make it imperative to establish biological base- OCCURRENCE OF lines for the marine fishes inhabiting the Arctic Ocean and adjacent seas (AOAS). As a first step towards credible conservation actions for the Arctic marine fish faunae, we examine the species-richness of chondrich- thyan fishes (class Chondrichthyes) pertaining to 16 regions within the AOAS: chimaeras, sharks and skates. CHONDRICHTHYAN materials and methods • Voucher specimens from Natural History Collections IN THE ARCTIC OCEAN • Annotated checklists (see selected references) • The CAFF Database on Arctic marine fishes (Christiansen et al., in AND ADJACENT SEAS progress) FISHES Only presence and absence data are considered, as reliable abundance data lack for most species. Occurrences known only from floating or beach-cast carcasses, such as Pacific sleeper shark (no. 17) and Alaska skate (no. 29) in the Chukchi Sea, are not considered conclusive evidence of presence and are not included. CHIMAERIFORMES HEXANCHIFORMES RAJIFORMES Chimaeridae - ratfishes Chlamydoselachidae -
Skates and Rays of British Columbia
Skates and Rays of British Columbia Fisheries and Oceans Canada is committed to developing the highest standard of bycatch data, and to the conservation of skate species in British Columbia waters. The information in this guide is designed to assist the Department to monitor bycatch, and fish harvesters to correctly identify bycatch and to enter it in logbooks. Drawings are not to scale. A B C BIG SKATE Common LONGNOSE Common BROAD Rare SKATE SKATE D E F G CALIFORNIA Rare SANDPAPER Common ALEUTIAN Infrequent ALASKA Rare SKATE SKATE SKATE SKATE I H J ROUGHTAIL Infrequent STARRY Rare SKATE DEEP SEA Rare SKATE SKATE N L M PELAGIC Rare K PACIFIC COMMANDER Rare Rare STINGRAY WHITEBROW Rare SKATE TORPEDO RAY SKATE Fisheries and Oceans Pêches et Océans Canada Canada Skates and Rays of British Columbia Eyespot Claspers (male) A BIG SKATE Beringraja binoculata • Depths 3 to 800 m; usually less than 200 m Dorsal fins • Total length to 200 cm Snout • Brown to gray with darker mottling; prominent eyespots • Ventral surface white to muddy white Pelvic fin • Snout: stiff and short Nuchal thorns • No scapular thorns; one nuchal thorn Notch • Continuous row of thorns, pelvic region to first dorsal fin Scapular thorns • Pelvic fin shallowly notched B LONGNOSE SKATE Raja rhina H STARRY SKATE Raja stellulata • Depths 20 to 660 m; usually less than 350 m • Depths 20 to 730 m • Total length to 140 cm • Total length to 75 cm • Dark brown with faint dark and light blotches; sometimes pale-centered • Gray-brown with numerous dark spots; sometimes with black -
A Phase '0' Review of Elasmobranch Biology, Fisheries, Assessment And
Fisheries and Oceans Pêches et Océans Science Sciences C S A S S C C S Canadian Science Advisory Secretariat Secrétariat canadien de consultation scientifique Research Document 2001/129 Document de recherche 2001/129 Not to be cited without Ne pas citer sans Permission of the authors * autorisation des auteurs * A Phase “0” Review of Elasmobranch Biology, Fisheries, Assessment and Management A. J. Benson G.A. McFarlane J. R. King Fisheries and Oceans Canada Pacific Biological Station Nanaimo, B.C. V9T 6N7 * This series documents the scientific basis for * La présente série documente les bases the evaluation of fisheries resources in scientifiques des évaluations des ressources Canada. As such, it addresses the issues of halieutiques du Canada. Elle traite des the day in the time frames required and the problèmes courants selon les échéanciers documents it contains are not intended as dictés. Les documents qu’elle contient ne definitive statements on the subjects doivent pas être considérés comme des addressed but rather as progress reports on énoncés définitifs sur les sujets traités, mais ongoing investigations. plutôt comme des rapports d’étape sur les études en cours. Research documents are produced in the Les documents de recherche sont publiés dans official language in which they are provided to la langue officielle utilisée dans le manuscrit the Secretariat. envoyé au Secrétariat. This document is available on the Internet at: Ce document est disponible sur l’Internet à: http://www.dfo-mpo.gc.ca/csas/ ISSN 1480-4883 Ottawa, 2001 ABSTRACT Elasmobranch catches in British Columbia (BC) averaged 550 t in the 1970s and 1980s and increased to a maximum of 1850 t in 1997. -
And Their Functional, Ecological, and Evolutionary Implications
DePaul University Via Sapientiae College of Science and Health Theses and Dissertations College of Science and Health Spring 6-14-2019 Body Forms in Sharks (Chondrichthyes: Elasmobranchii), and Their Functional, Ecological, and Evolutionary Implications Phillip C. Sternes DePaul University, [email protected] Follow this and additional works at: https://via.library.depaul.edu/csh_etd Part of the Biology Commons Recommended Citation Sternes, Phillip C., "Body Forms in Sharks (Chondrichthyes: Elasmobranchii), and Their Functional, Ecological, and Evolutionary Implications" (2019). College of Science and Health Theses and Dissertations. 327. https://via.library.depaul.edu/csh_etd/327 This Thesis is brought to you for free and open access by the College of Science and Health at Via Sapientiae. It has been accepted for inclusion in College of Science and Health Theses and Dissertations by an authorized administrator of Via Sapientiae. For more information, please contact [email protected]. Body Forms in Sharks (Chondrichthyes: Elasmobranchii), and Their Functional, Ecological, and Evolutionary Implications A Thesis Presented in Partial Fulfilment of the Requirements for the Degree of Master of Science June 2019 By Phillip C. Sternes Department of Biological Sciences College of Science and Health DePaul University Chicago, Illinois Table of Contents Table of Contents.............................................................................................................................ii List of Tables..................................................................................................................................iv -
Highly Migratory Shark Fisheries Research by the National Shark Research Consortium (NSRC) 2004-2005
Highly Migratory Shark Fisheries Research by the National Shark Research Consortium (NSRC) 2004-2005 Award Number: NA16FL2813 Semi Annual Progress Report For Period: January 1, 2005 - June 30, 2005 SUBMITTED TO: NOAA SUBMITTED By: ROBERT E. BUETER, PH.D. MOTE MARINE LABORATORY 1600 KEN THOMPSON PARKWAY SARASOTA,FL 34236 (941) 388-4441 AUGUST 24, 2005 MOTE MARINE LABORATORY TECHNICAL REPORT NO. 1039 SEMI-ANNUAL PERFORMANCE REPORT Award Number: NA16FL2813 Amount of Award: Federal Share $ 1,787,864 Project Title: Highly Migratory Shark Fisheries Research by the National Shark Research Consortium (NSRC), 2004-2005 Recipient: Mote Marine Laboratory, Sarasota, Florida Award Period: July 1,2004 to June 30, 2005 Period Covered by this Report: January 1, 2005 to June 30, 2005 Primary Project Tasks: The following primary tasks were scheduled for this six-month period: Mote Marine Laboratory Component lao Shark life history, migration and stock structure I b. Relative abundance studies lc. Satellite tag testing and development I d. Freshwater habitat use 1e . Mortality rates of sharks within a coastal nursery area I f. Essential Fish Habitat environmental studies I g. Use of elemental analysis to investigate nursery habitat in bull sharks 1h . Ecosystem and population modeling Ii. Nurse shark reproductive life history, genetics and habitat studies Ij. Whale shark research in the Gulf of Mexico and Caribbean Sea lk. Publications and scientific conferences 1 Moss Landing Marine Laboratories Component 2a. Eastern orth Pacific chondrichthya n life history data matrix 2b. Age, growth, and demographic studies 2c. Age validation studies 2d. Reproductive biology 2e. Feeding ecology 2f. Stable isotope analysis 2g. -
The Conservation Status of North American, Central American, and Caribbean Chondrichthyans the Conservation Status Of
The Conservation Status of North American, Central American, and Caribbean Chondrichthyans The Conservation Status of Edited by The Conservation Status of North American, Central and Caribbean Chondrichthyans North American, Central American, Peter M. Kyne, John K. Carlson, David A. Ebert, Sonja V. Fordham, Joseph J. Bizzarro, Rachel T. Graham, David W. Kulka, Emily E. Tewes, Lucy R. Harrison and Nicholas K. Dulvy L.R. Harrison and N.K. Dulvy E.E. Tewes, Kulka, D.W. Graham, R.T. Bizzarro, J.J. Fordham, Ebert, S.V. Carlson, D.A. J.K. Kyne, P.M. Edited by and Caribbean Chondrichthyans Executive Summary This report from the IUCN Shark Specialist Group includes the first compilation of conservation status assessments for the 282 chondrichthyan species (sharks, rays, and chimaeras) recorded from North American, Central American, and Caribbean waters. The status and needs of those species assessed against the IUCN Red List of Threatened Species criteria as threatened (Critically Endangered, Endangered, and Vulnerable) are highlighted. An overview of regional issues and a discussion of current and future management measures are also presented. A primary aim of the report is to inform the development of chondrichthyan research, conservation, and management priorities for the North American, Central American, and Caribbean region. Results show that 13.5% of chondrichthyans occurring in the region qualify for one of the three threatened categories. These species face an extremely high risk of extinction in the wild (Critically Endangered; 1.4%), a very high risk of extinction in the wild (Endangered; 1.8%), or a high risk of extinction in the wild (Vulnerable; 10.3%). -
Sharksof Oregon
Sharksof Oregon Illustrations by Michael Cole oceanscape.aquarium.org Basking Shark Cetorhinus maximus These are one of the largest fish in the world, second only to their aptly-named cousin, the Whale Shark. Basking Sharks are very unusual-looking, with large heads that are almost completely encircled by gills. As their name implies, they are often found “basking” near the water’s surface, filtering krill and other zooplankton through their gaping mouths. The gills of the shark are lined with cartilaginous structures called “rakers” which help snag and hold food as they sweep through the water. Aside from their great size and large mouths, Basking Sharks can also be identified by a a hook-shaped snout and a large dorsal fin that can flop from one side to the other when out of the water. Due to their size and shape, they are often mistaken for Great White Sharks although they are more docile in temperament and do not pose any threat to human beings. Range and Habitat: The Basking Shark can be found in both the northern and southern hemispheres, from the subarctic and subantarctic waters to temperate waters along the continental shelves. Because the sharks follow the ocean’s current, they often migrate over vast distances. Although they spend most of their time in the open ocean, they will venture closer to shore, sometimes even entering bays, as food sources change. Status of Conservation: Changes in ocean currents and weather may be encouraging unusual numbers of Basking Sharks to more Southern latitudes, rather than the Canadian waters where they are usually spotted.