Literaturverzeichnis
Total Page：16
File Type：pdf, Size：1020Kb
Load more
Recommended publications
-
A Review of Southern Ocean Squids Using Nets and Beaks
Marine Biodiversity (2020) 50:98 https://doi.org/10.1007/s12526-020-01113-4 REVIEW A review of Southern Ocean squids using nets and beaks Yves Cherel1 Received: 31 May 2020 /Revised: 31 August 2020 /Accepted: 3 September 2020 # Senckenberg Gesellschaft für Naturforschung 2020 Abstract This review presents an innovative approach to investigate the teuthofauna from the Southern Ocean by combining two com- plementary data sets, the literature on cephalopod taxonomy and biogeography, together with predator dietary investigations. Sixty squids were recorded south of the Subtropical Front, including one circumpolar Antarctic (Psychroteuthis glacialis Thiele, 1920), 13 circumpolar Southern Ocean, 20 circumpolar subantarctic, eight regional subantarctic, and 12 occasional subantarctic species. A critical evaluation removed five species from the list, and one species has an unknown taxonomic status. The 42 Southern Ocean squids belong to three large taxonomic units, bathyteuthoids (n = 1 species), myopsids (n =1),andoegopsids (n = 40). A high level of endemism (21 species, 50%, all oegopsids) characterizes the Southern Ocean teuthofauna. Seventeen families of oegopsids are represented, with three dominating families, onychoteuthids (seven species, five endemics), ommastrephids (six species, three endemics), and cranchiids (five species, three endemics). Recent improvements in beak identification and taxonomy allowed making new correspondence between beak and species names, such as Galiteuthis suhmi (Hoyle 1886), Liguriella podophtalma Issel, 1908, and the recently described Taonius notalia Evans, in prep. Gonatus phoebetriae beaks were synonymized with those of Gonatopsis octopedatus Sasaki, 1920, thus increasing significantly the number of records and detailing the circumpolar distribution of this rarely caught Southern Ocean squid. The review extends considerably the number of species, including endemics, recorded from the Southern Ocean, but it also highlights that the corresponding species to two well-described beaks (Moroteuthopsis sp. -
Sea Monsters and Real Environmental Threats: Reconsidering the Famous Osborne, ‘Moha-Moha’, Valhalla, and ‘Soay Beast’ Sightings of Unidentified Marine Objects
IMAGINARY SEA MONSTERS AND REAL ENVIRONMENTAL THREATS: RECONSIDERING THE FAMOUS OSBORNE, ‘MOHA-MOHA’, VALHALLA, AND ‘SOAY BEAST’ SIGHTINGS OF UNIDENTIFIED MARINE OBJECTS R. L. FRANCE Dal Ocean Research Group Department of Plant, Food, and Environmental Sciences, Dalhousie University Abstract At one time, largely but not exclusively during the nineteenth century, retellings of encounters with sea monsters were a mainstay of dockside conversations among mariners, press reportage for an audience of fascinated landlubbers, and journal articles published by believing or sceptical natural scientists. Today, to the increasing frustration of cryptozoologists, mainstream biologists and environmental historians have convincingly argued that there is a long history of conflating or misidentifying known sea animals as purported sea monsters. The present paper provides, for the first time, a detailed, diachronic review of competing theories that have been posited to explain four particular encounters with sea monsters, which at the time of the sightings (1877, 1890, 1905, and 1959) had garnered worldwide attention and considerable fame. In so doing, insights are gleaned about the role played by sea monsters in the culture of late-Victorian natural science. Additionally, and most importantly, I offer my own parsimonious explanation that the observed ‘sea monsters’ may have been sea turtles entangled in pre-plastic fishing gear or maritime debris. Environmental history is therefore shown to be a valuable tool for looking backward in order to postulate the length of time that wildlife populations have been subjected to anthropogenic pressure. This is something of contemporary importance, given that scholars are currently involved in deliberations concerning the commencement date of the Anthropocene Era. -
In the Weddell
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by OceanRep Antarctic Science 6 (2):235-239 (1994) Distribution and lipid composition of early life stages of the cranchiid squid Galiteuthis glacialis (Chun) in the Weddell Sea, Antarctica UWE PIATKOWSKIl and WILHELM HAGEN2 'Institut fiir Meereskunde, Universitat Kiel, Diisternbrooker Weg 20,D-24105Kiel, Germany 'Institut fir Polarohdogie, Universitat Kiel, Wischhofstr. 1-3,Gebuude 12,D-24148Kiel, Germany Abstract: The relatively small numbers of pelagic cephalopods caught in the RMT-8 samples (0-300 m) in FebruaryMarch 1983 in the Weddell Sea were dominated by early life stages of the cranchiid squid Galiteuthis glacialis. A total of 48 specimens were caught with dorsal mantle length (ML) ranging from 4-36 mm. They occurred with amean density of 0.15 ind. x 1000 mJ and were present in 38% of 33 RMT-8 samples. G. glacialis was the only cranchiid squid found in the Weddell Sea between 66" and 74"s. Its early life stageswere concentrated in the layers below the summer thermocline (>50 m) and body sizes appeared to increase towards deeper water layers. For biochemical analyses, nine specimens of G. glacialis (ML 6-18 mm) were sampled in the eastern Weddell Seabetween 185-520mwater depth in JanuaryFebruaIy 1985. Totallipidcontentsrangedfrom8%-11% dry weight (DW) with phospholipids being the main lipid component (43-56% of total lipid). Storage lipids (triacylglycerols) made up 18-26% of total lipid. The relatively low lipid contents may reflect the early developmental stage of the specimens examined. The data presented give the first information on geographical and vertical distribution patterns of early life stages of G. -
Fish Bulletin 152. Food Habits of Albacore, Bluefin Tuna, and Bonito in California Waters
UC San Diego Fish Bulletin Title Fish Bulletin 152. Food Habits of Albacore, Bluefin Tuna, and Bonito In California Waters Permalink https://escholarship.org/uc/item/7t5868rd Authors Pinkas, Leo Oliphant, Malcolm S Iverson, Ingrid L.K. Publication Date 1970-06-01 eScholarship.org Powered by the California Digital Library University of California STATE OF CALIFORNIA THE RESOURCES AGENCY DEPARTMENT OF FISH AND GAME FISH BULLETIN 152 Food Habits of Albacore, Bluefin Tuna, and Bonito In California Waters By Leo Pinkas , Malcolm S. Oliphant, and Ingrid L. K. Iverson 1971 1 2 ABSTRACT The authors investigated food habits of albacore, Thunnus alalunga, bluefin tuna, Thunnus thynnus, and bonito, Sarda chiliensis, in the eastern North Pacific Ocean during 1968 and 1969. While most stomach samples came from fish caught commercially off southern California and Baja California, some came from fish taken in central Califor- nia, Oregon, and Washington waters. Standard procedures included enumeration of food items, volumetric analysis, and measure of frequency of occur- rence. The authors identified the majority of forage organisms to the specific level through usual taxonomic methods for whole animals. Identification of partially digested animals was accomplished through the use of otoliths for fish, beaks for cephalopods, and the exoskeleton for invertebrates. A pictorial guide to beaks of certain eastern Pacific cephalopods was prepared and proved helpful in identifying stomach contents. This guide is presented in this publication. The study indicates the prominent forage for bluefin tuna, bonito, and albacore in California waters is the northern anchovy, Engraulis mordax. 3 ACKNOWLEDGMENTS The Food Habits Study of Organisms of the California Current System, (Project 6–7-R), was an investigation estab- lished under contract between the U.S. -
Biodiversity and the Future of the Gulf of Maine Area Lewis Incze and Peter Lawton Genes
Biodiversity and the Future of the Gulf of Maine Area Lewis Incze and Peter Lawton Genes Biodiversity is the diversity of life at all levels of organization, from genes to species, communities and ecosystems. Species Nearshore Offshore Bank Basin Slope GoMA: Ecosystem Field Project Habitats and Seamount Communities Abyssal Plain From microbes to whales, and from fundamental biodiversity to EBM GoMA Areas of Work: Species in the Gulf of Maine Area Ecology: past and present Technology Synthesizing Knowledge Linkages to EBM Outreach Today’s Agenda: 08:45-09:45 Presentation: The Global Census and GoMA: What did we do? What did we learn? 09:45-10:00 Q&A 10:00-10:20 BREAK 10:20-11:00 Presentation: Pathways to EBM 11:00-11:45 Discussion Programs of the Census of Marine Life ArCoD Arctic CMarZ Zooplankton CAML Antarctic Creefs Coral Reefs CenSeam Seamounts GoMA Gulf of Maine Area CheSS Chemosynthetic Systems ICOMM Microbes COMARGE Continental margins MAR-ECO Mid-Ocean Ridges CeDAMAR Abyssal Plains NaGISA Intertidal/Shallow Subtidal CenSeam Seamounts TOPP Top Predators HMAP History of Marine Animal Populations FMAP Future of “ “ “ OBIS Ocean Biogeographic Information System Collaborators/Affiliated programs Great Barrier Reef Gulf of Mexico BarCode of Life Encyclopedia of Life Oceans film 10 years (2000-2010) 80 countries, 2700 scientists 17 projects, 14 field projects + OBIS, HMAP Xxx cruises, xxxx days at sea, and FMAP ~ $77m leveraged ~ $767 m --need to 5 affiliated projects (field and technology) check 9 national and regional committees >2,500 scientific papers (many covers) books special journal volumes ~1,200 new species identified >1,500 species in waiting Collection in PLoS-ONE, 2010, incl. -
Forage Fish Management Plan
Oregon Forage Fish Management Plan November 19, 2016 Oregon Department of Fish and Wildlife Marine Resources Program 2040 SE Marine Science Drive Newport, OR 97365 (541) 867-4741 http://www.dfw.state.or.us/MRP/ Oregon Department of Fish & Wildlife 1 Table of Contents Executive Summary ....................................................................................................................................... 4 Introduction .................................................................................................................................................. 6 Purpose and Need ..................................................................................................................................... 6 Federal action to protect Forage Fish (2016)............................................................................................ 7 The Oregon Marine Fisheries Management Plan Framework .................................................................. 7 Relationship to Other State Policies ......................................................................................................... 7 Public Process Developing this Plan .......................................................................................................... 8 How this Document is Organized .............................................................................................................. 8 A. Resource Analysis .................................................................................................................................... -
Place Names Describing Fossils in Oral Traditions
Place names describing fossils in oral traditions ADRIENNE MAYOR Classics Department, Stanford University, Stanford CA 94305 (e-mail: [email protected]) Abstract: Folk explanations of notable geological features, including fossils, are found around the world. Observations of fossil exposures (bones, footprints, etc.) led to place names for rivers, mountains, valleys, mounds, caves, springs, tracks, and other geological and palaeonto- logical sites. Some names describe prehistoric remains and/or refer to traditional interpretations of fossils. This paper presents case studies of fossil-related place names in ancient and modern Europe and China, and Native American examples in Canada, the United States, and Mexico. Evidence for the earliest known fossil-related place names comes from ancient Greco-Roman and Chinese literature. The earliest documented fossil-related place name in the New World was preserved in a written text by the Spanish in the sixteenth century. In many instances, fossil geonames are purely descriptive; in others, however, the mythology about a specific fossil locality survives along with the name; in still other cases the geomythology is suggested by recorded traditions about similar palaeontological phenomena. The antiquity and continuity of some fossil-related place names shows that people had observed and speculated about miner- alized traces of extinct life forms long before modern scientific investigations. Traditional place names can reveal heretofore unknown geomyths as well as new geologically-important sites. Traditional folk names for geological features in the Named fossil sites in classical antiquity landscape commonly refer to mythological or and modern Greece legendary stories that accounted for them (Vitaliano 1973). Landmarks notable for conspicuous fossils Evidence for the practice of naming specific fossil have been named descriptively or mythologically locales can be found in classical antiquity. -
DIET of FREE-RANGING and STRANDED SPERM WHALES (Physeter
DIET OF FREE-RANGING AND STRANDED SPERM WHALES (Physeter macrocephalus) FROM THE GULF OF MEXICO NATIONAL MARINE FISHERIES SERVICE CONTRACT REPORT Submitted to: Dr. Keith D. Mullin National Marine Fisheries Service Southeast Fisheries Science Center PO. Drawer 1207 Pascagoula, MS 39568-1207 Submitted by: Dr. Nelio B. Barros Mote Marine Laboratory Center for Marine Mammal and Sea Turtle Research 1600 Ken Thompson Parkway Sarasota, FL 34236-1096 (941) 388-4441 x 443 (941) 388-4317 FAX May 2003 Mote Marine Laboratory Technical Report Number 895 ABSTRACT Sperm whales are common inhabitants of the deep waters of the Gulf of Mexico. To date, no information is available on the diet of sperm whales in the Gulf. This study sheds light into the feeding habits ofthese whales by examining data collected from free-ranging and stranded animals. Prey species included a minimum of 13 species within 10 families of cephalopods, the only prey type observed. The most important prey was Histioteuthis, a midwater squid important in the diet of sperm whales worldwide. Most species of cephalopods consumed by Gulf sperm whales are meso to bathypelagic in distribution, being found in surface to waters 2,500 deep. Some of these prey are also vertical migrators. The diet of Gulf sperm whales does not include species targeted by the commercial fisheries. INTRODUCTION Until fairly recently, little was known about the species of whales and dolphins (cetaceans) inhabiting the deep waters of the Gulf of Mexico. Most of the information available came from opportunistic sightings and occasional strandings. In the early 1990' s large-scale dedicated surveys were initiated to study the distribution and abundance of marine mammals in the deep Gulf. -
A Short Note on the Cephalopods Sampled in the Angola Basin During the DIVA-1 Expedition Uwe Piatkowskiã, Rabea Diekmann
ARTICLE IN PRESS Organisms, Diversity & Evolution 5 (2005) 227–230 www.elsevier.de/ode RESULTS OF THE DIVA-1 EXPEDITION OF RV ‘‘METEOR’’ (CRUISE M48/1) A short note on the cephalopods sampled in the Angola Basin during the DIVA-1 expedition Uwe PiatkowskiÃ, Rabea Diekmann IFM-GEOMAR, Leibniz-Institut fu¨r Meereswissenschaften an der Universita¨t Kiel, Du¨sternbrooker Weg 20, D-24105 Kiel, Germany Abstract Five cephalopods, all belonging to different species, were identified from deep-sea trawl samples conducted during the DIVA 1-expedition of RV ‘‘Meteor’’ in the Angola Basin in July 2000. These were the teuthoid squids Bathyteuthis abyssicola, Brachioteuthis riisei, Mastigoteuthis atlantica, Galiteuthis armata, and the finned deep-sea octopus Grimpoteuthis wuelkeri. The present study contributes information on size, morphometry, biology and distribution of the species form this unique cephalopod collection. r 2004 Elsevier GmbH. All rights reserved. Keywords: Cephalopoda; Deep-sea; Angola Basin; Cirrate octopods Introduction captured. These circumstances demonstrate the great scientific value of any cephalopod sampled from deep- Cephalopods in the bathyal and abyssal ecosystems sea habitats. The abyssal plains still belong to the most have been the subject of only a limited number of studies unknown regions in the oceans. One of these plains, the due to the obvious difficulties involved in collecting Angola Basin was sampled during the RV ‘‘Meteor’’ them adequately at such great depths (Voss 1967; expedition in 2000. In the present study, we provide Villanueva 1992). A further drawback relates to their information on a small collection of cephalopods which delicate bodies, which are frequently damaged almost have been caught during the expedition and which beyond recognition in trawl samples. -
An Illustrated Key to the Families of the Order
CLYDE F. E. ROP An Illustrated RICHARD E. YOl and GILBERT L. VC Key to the Families of the Order Teuthoidea Cephalopoda) SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY • 1969 NUMBER 13 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY NUMBER 13 Clyde F. E. Roper, An Illustrated Key 5K?Z" to the Families of the Order Teuthoidea (Cephalopoda) SMITHSONIAN INSTITUTION PRESS CITY OF WASHINGTON 1969 SERIAL PUBLICATIONS OF THE SMITHSONIAN INSTITUTION The emphasis upon publications as a means of diffusing knowledge was expressed by the first Secretary of the Smithsonian Institution. In his formal plan for the Institution, Joseph Henry articulated a program that included the following statement: "It is proposed to publish a series of reports, giving an account of the new discoveries in science, and of the changes made from year to year in all branches of knowledge not strictly professional." This keynote of basic research has been adhered to over the years in the issuance of thousands of titles in serial publications under the Smithsonian imprint, commencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: Smithsonian Annals of Flight Smithsonian Contributions to Anthropology Smithsonian Contributions to Astrophysics Smithsonian Contributions to Botany Smithsonian Contributions to the Earth Sciences Smithsonian Contributions to Paleobiology Smithsonian Contributions to Zoology Smithsonian Studies in History and Technology In these series, the Institution publishes original articles and monographs dealing with the research and collections of its several museums and offices and of professional colleagues at other institutions of learning. These papers report newly acquired facts, synoptic interpretations of data, or original theory in specialized fields. -
Arctic Cephalopod Distributions and Their Associated Predatorspor 146 209..227 Kathleen Gardiner & Terry A
Arctic cephalopod distributions and their associated predatorspor_146 209..227 Kathleen Gardiner & Terry A. Dick Biological Sciences, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada Keywords Abstract Arctic Ocean; Canada; cephalopods; distributions; oceanography; predators. Cephalopods are key species of the eastern Arctic marine food web, both as prey and predator. Their presence in the diets of Arctic fish, birds and mammals Correspondence illustrates their trophic importance. There has been considerable research on Terry A. Dick, Biological Sciences, University cephalopods (primarily Gonatus fabricii) from the north Atlantic and the west of Manitoba, Winnipeg, Manitoba R3T 2N2, side of Greenland, where they are considered a potential fishery and are taken Canada. E-mail: [email protected] as a by-catch. By contrast, data on the biogeography of Arctic cephalopods are doi:10.1111/j.1751-8369.2010.00146.x still incomplete. This study integrates most known locations of Arctic cepha- lopods in an attempt to locate potential areas of interest for cephalopods, and the predators that feed on them. International and national databases, museum collections, government reports, published articles and personal communica- tions were used to develop distribution maps. Species common to the Canadian Arctic include: G. fabricii, Rossia moelleri, R. palpebrosa and Bathypolypus arcticus. Cirroteuthis muelleri is abundant in the waters off Alaska, Davis Strait and Baffin Bay. Although distribution data are still incomplete, groupings of cephalopods were found in some areas that may be correlated with oceanographic variables. Understanding species distributions and their interactions within the ecosys- tem is important to the study of a warming Arctic Ocean and the selection of marine protected areas. -
How to Tell a Sea Monster: Molecular Discrimination of Large Marine Animals of the North Atlantic
Reference: Biol. Bull. 202: 1–5. (February 2002) How To Tell a Sea Monster: Molecular Discrimination of Large Marine Animals of the North Atlantic S. M. CARR1,*, H. D. MARSHALL1, K. A. JOHNSTONE1, L. M. PYNN1, AND G. B. STENSON2 1Genetics, Evolution, and Molecular Systematics Laboratory, Department of Biology, Memorial University of Newfoundland, St. John’s, Newfoundland A1B 3X9, Canada; and 2Marine Mammals Section, Science, Oceans, and Environment Branch, Department of Fisheries and Oceans, PO Box 5667, St. John’s, Newfoundland A1C 5X1, Canada “Either we do know all the varieties of beings which people our planet, or we do not. If we do not know them all—if Nature has still secrets in the deeps for us, nothing is more conformable to reason than to admit the existence of fishes, or cetaceans of other kinds, or even of new species ...which an accident of some sort has brought at long intervals to the upper level of the ocean.” —Jules Verne, Twenty Thousand Leagues Under the Sea, 1870 Abstract. Remains of large marine animals that wash (1994) gives a contemporary list. Even in the first year of a onshore can be difficult to identify due to decomposition new century when the complete human genome has become and loss of external body parts, and in consequence may be known (International Human Genome Sequencing Consor- dubbed “sea monsters.” DNA that survives in such car- tium, 2001), the possibility that entirely new, previously casses can provide a basis of identification. One such crea- unknown species may unexpectedly present themselves re- ture washed ashore at St.