Fauna Ryukyuana ISSN 2187-6657
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Studies on Some Japanese Fishes of The, Family Gempylidae
Studies on Some Japanese Fishes of the, Family Gempylidae KIYOMATSU M ATSUBARA and TAMOTSU IWAI l THOUGH TH E FISHES of the family Gempyli The few species comprising this family live dae have long been of interest to ichth yolo in the high seas and are widely distributed in gists and though considerable literature warm regions throughout the world . concerning this family has accumulated; the The measurements of various parts of the group still is far from being satisfactorily body were made in the same way as those understood. made by the senior author in his study on the Since the publication of " Gempylidae of scorpaenoid fishes ofJapan (Matsubara, 1943: Japan" by Dr. Toshij i Kamohara in 1938, 6-7). We have carefully observed the gill some additional facts have come to ligh t, and rakers stained by alizarin red and cleared by several discrepancies have been found to exist potassium hydroxide. between his descriptions and our specimens. Acknowledgments: .We wish to express our The present paper, supplementing Karno sincere gratitude to Mr. Vernon E. Brock, hara's, treats seven species of the family, re Dr. Carl L. Hubbs, Mr. T. Abe, Dr. T. Karno ferred to the genera N eoepinnul«, Bpinnula, hara, and Mr. M. Nakamura, all of whom Mimasea, Gempylus, Rexea, Nealotus, and helped us in various ways. We are also greatly Prometbicbtbys. The specimens thus far ex indebted to Messrs. G . Abe and S. Noda for amined were all taken by deep-sea trawlers assistance in 'obtaining material. Expenses for off the Pacific coast of J apan at a depth of investigations of deep-sea fishes were de about 100 fathoms, and all are depo sited in frayed from 1943 to 1945 by a research fun d the Department of Fisheries, Facult y of Agri- . -
Simulations of Fishing Effects on the Southern Benguela Fish Community Using an Individual-Based Model: Learning from a Comparison with Ecosim
Ecosystem Approaches to Fisheries in the Southern Benguela Afr. J. mar. Sci. 26: 95–114 2004 95 SIMULATIONS OF FISHING EFFECTS ON THE SOUTHERN BENGUELA FISH COMMUNITY USING AN INDIVIDUAL-BASED MODEL: LEARNING FROM A COMPARISON WITH ECOSIM Y-J. SHIN*, L. J. SHANNON† and P. M. CURY* By applying an individual-based model (OSMOSE) to the southern Benguela ecosystem, a multispecies analysis is proposed, complementary to that provided by the application of ECOPATH/ECOSIM models. To reconstruct marine foodwebs, OSMOSE is based on the hypothesis that predation is a size-structured process. In all, 12 fish species, chosen for their importance in terms of biomass and catches, are explicitly modelled. Growth, repro- duction and mortality parameters are required to model their dynamics and trophic interactions. Maps of mean spatial distribution of the species are compiled from published literature. Taking into account the spatial component is necessary because spatial co-occurrence determines potential interactions between predatory fish and prey fish of suitable size. To explore ecosystem effects of fishing, different fishing scenarios, previously examined using ECOSIM, are simulated using the OSMOSE model. They explore the effects of targeting fish species in the southern Benguela considered to be predators (Cape hake Merluccius capensis and M. paradoxus) or prey (anchovy Engraulis encrasicolus, sardine Sardinops sagax, round herring Etrumeus whiteheadi). Simulation results are compared and are generally consistent with those obtained using an ECOSIM model. This cross-validation appears to be a promising means of evaluating the robustness of model outputs, when separate validation of marine ecosystem models are still difficult to perform. -
Nansei Islands Biological Diversity Evaluation Project Report 1 Chapter 1
Introduction WWF Japan’s involvement with the Nansei Islands can be traced back to a request in 1982 by Prince Phillip, Duke of Edinburgh. The “World Conservation Strategy”, which was drafted at the time through a collaborative effort by the WWF’s network, the International Union for Conservation of Nature (IUCN), and the United Nations Environment Programme (UNEP), posed the notion that the problems affecting environments were problems that had global implications. Furthermore, the findings presented offered information on precious environments extant throughout the globe and where they were distributed, thereby providing an impetus for people to think about issues relevant to humankind’s harmonious existence with the rest of nature. One of the precious natural environments for Japan given in the “World Conservation Strategy” was the Nansei Islands. The Duke of Edinburgh, who was the President of the WWF at the time (now President Emeritus), naturally sought to promote acts of conservation by those who could see them through most effectively, i.e. pertinent conservation parties in the area, a mandate which naturally fell on the shoulders of WWF Japan with regard to nature conservation activities concerning the Nansei Islands. This marked the beginning of the Nansei Islands initiative of WWF Japan, and ever since, WWF Japan has not only consistently performed globally-relevant environmental studies of particular areas within the Nansei Islands during the 1980’s and 1990’s, but has put pressure on the national and local governments to use the findings of those studies in public policy. Unfortunately, like many other places throughout the world, the deterioration of the natural environments in the Nansei Islands has yet to stop. -
© Iccat, 2007
A5 By-catch Species APPENDIX 5: BY-CATCH SPECIES A.5 By-catch species By-catch is the unintentional/incidental capture of non-target species during fishing operations. Different types of fisheries have different types and levels of by-catch, depending on the gear used, the time, area and depth fished, etc. Article IV of the Convention states: "the Commission shall be responsible for the study of the population of tuna and tuna-like fishes (the Scombriformes with the exception of Trichiuridae and Gempylidae and the genus Scomber) and such other species of fishes exploited in tuna fishing in the Convention area as are not under investigation by another international fishery organization". The following is a list of by-catch species recorded as being ever caught by any major tuna fishery in the Atlantic/Mediterranean. Note that the lists are qualitative and are not indicative of quantity or mortality. Thus, the presence of a species in the lists does not imply that it is caught in significant quantities, or that individuals that are caught necessarily die. Skates and rays Scientific names Common name Code LL GILL PS BB HARP TRAP OTHER Dasyatis centroura Roughtail stingray RDC X Dasyatis violacea Pelagic stingray PLS X X X X Manta birostris Manta ray RMB X X X Mobula hypostoma RMH X Mobula lucasana X Mobula mobular Devil ray RMM X X X X X Myliobatis aquila Common eagle ray MYL X X Pteuromylaeus bovinus Bull ray MPO X X Raja fullonica Shagreen ray RJF X Raja straeleni Spotted skate RFL X Rhinoptera spp Cownose ray X Torpedo nobiliana Torpedo -
The First Registration of Oilfish Ruvettus Pretiosus (Cocco, 1833) in the Waters of the Albanian Coast of the Adriatic Sea; Morphometry
06 | Fisheries, Game Management and Beekeeping PRELIMINARY COMMUNICATION The first registration of oilfish Ruvettus pretiosus (Cocco, 1833) in the waters of the Albanian coast of the Adriatic Sea; morphometry Dritan Arapi1, Rigerta Sadikaj2,Vladimir Spaho3 1Flora and Fauna Research Center, University of Tirana, Tirana, Albania ([email protected]) 2Faculty of Natural Sciences, University of Tirana, Tirana, Albania 3Agricultural University, Tirana, Albania Abstract In February 2017, it was recorded for the first time the presence of the fish “oilfish” (Ruvettus pretiosus Cocco,1833) in the waters of the Albanian coast of the Adriatic Sea, near Karaburun peninsula. This alien fish was caught as by-catch during fishing with hooks (longline fishing) which is carried out for large pelagics. Its overall live weight was W=26.1 kg while the values for some morphometric indicators were TL=173.5 cm; FL=155 cm, SL=146cm and cf=40.2 cm. The caught specimen was donated to the Museum of Natural Sciences at the University of Tirana. Key words: oilfish, morphometry, Adriatic Sea, Albania, alien species Introduction Alien invasive species (IAS) are considered as a major threat to global diversity (Bax et al. 2003.). In the recent years, in the scientific literature have apparently increased the reports on the involvement of alien species, originating from temperate and tropical climate, in the ictic fauna of the Mediterranean basin. Alien or non-native fish have been introduced in the Mediterranean and Black Sea Basins through the Suez Canal, the Gibraltar Strait and the ballast water. The opening of Suez Canal, climate changes and the intensification of international shipping activities are factors that have favored an increase in the number of alien species. -
Systematic Review of Late Pleistocene Turtles (Reptilia: Chelonii) from the Ryukyu Archipelago, Japan, with Special Reference to Paleogeographical Implications1
Systematic Review of Late Pleistocene Turtles (Reptilia: Chelonii) from the Ryukyu Archipelago, Japan, with Special Reference to Paleogeographical Implications1 Akio Takahashi,2 Hiroyuki Otsuka,3 and Hidetoshi Ota4,5 Abstract: The Quaternary terrestrial turtle fauna of the Ryukyu Archipelago was reviewed on the basis of recently excavated fossils, as well as literature infor- mation. As a result, five extinct species (four geoemydids [Cuora sp., Geoemyda amamiensis, Mauremys sp., and another species with undetermined generic and specific status] and one testudinid [Manouria oyamai]) were recognized from Late Pleistocene cave and fissure deposits. Two of the three turtles currently occurring in this archipelago (C. flavomarginata and G. japonica) were also recog- nized from comparable deposits on islands, including those where they do not occur at present. These records indicate that the terrestrial turtles of the Ryu- kyus were much more diverse during the Late Pleistocene than at present, and that extinction has occurred during the last few tens of thousands of years not only for those five fossil species but also for some island populations of the ex- tant species. Distributions of three of the extinct species (G. amamiensis, Cuora sp., and the geoemydid [genus and species undetermined]), confined to the cen- tral Ryukyus, are concordant with the currently prevailing hypothesis of Ryukyu paleogeography, which assumes a relatively long isolation of this region and much more recent insularization of the southern Ryukyus. In contrast, distribu- tions of the remaining two extinct species (Man. oyamai and Mau. sp.) must be explained by some ad hoc scenario or, otherwise, drastic modification of the current hypothesis. -
Border-Crossers and Resistance to US Military Rule in the Ryukyus, 1945-1953
Volume 6 | Issue 9 | Article ID 2906 | Sep 01, 2008 The Asia-Pacific Journal | Japan Focus Border-Crossers and Resistance to US Military Rule in the Ryukyus, 1945-1953 Matthew R. Augustine Border-Crossers and Resistance to US main island groups. Trade barriers with Japan Military Rule in the Ryukyus, 1945-1953 were relaxed in 1950, but the San Francisco Peace Treaty signed in 1951 reaffirmed that Matthew R. Augustine the Ryukyus would remain under US military rule, divided from Japan. By this time, the Sixty-six years after Japan’s annexation of the increasing cross-border interconnections former Ryukyu Kingdom in 1879, in the waning between residents in the Ryukyus and months of the Asia-Pacific War, the American Okinawan and Amamian residents in Japan had military partitioned the Ryukyu Islands from already given rise to an organized movement Japan. The replacement of Okinawa Prefecture calling for reversion to Japanese sovereignty. by US military rule in the Ryukyus from 1945 had profound implications, for residents of the How did the establishment of the military occupied islands. A major repercussion of the government and new postwar borders actually military government’s separation of theaffect the movement of residents within and Ryukyus was the enforced isolation of the four outside of the Ryukyu Islands? Conversely, to main island groups from occupied Japan. The what extent did the resistance of residents in Ryukyuan-Japanese border severed long- the Ryukyus and their effort to overcome their standing administrative and economic links, division and isolation influence the military while restrictive border controls prohibited free government’s border controls and related travel and interaction between the two sides. -
6. Associated Species
57 6. Associated species As mentioned earlier, associated species are those impacted species that are not part of the landed catch. Fisheries for straddling fish stocks, highly migratory fish stocks, and high seas fish stocks, impact other species as a result of: (1) discards, (2) physical contact of fishing gear with organisms (and habitat) that are not caught, and (3) indirect processes. Discards are considered in section 6.1 while physical contact and indirect processes are considered together in section 6.2. 6.1 DISCARDS Much more is known about discards than the other mechanisms through which fisheries impact associated species, although information is still limited. The most recent global information on discards is in an FAO report by Kelleher (2005). It estimates that the rate of discards is about 8 percent for all marine fisheries combined (EEZ and high seas), with large differences by countries, gear types, target species and statistical areas. Shrimp trawling has the highest estimated average discard rate (62.3 percent), but the rates vary widely between fisheries (from 0 to 96 percent). Most shrimp trawling is on stocks confined to the EEZ, although there are some straddling or other high seas stocks of shrimp that are fished. These are likely to be fisheries in relatively deep water for cold-water species, such as the fishery for Pandalus shrimp on the Flemish Cap off Newfoundland and off Labrador in the northwest Atlantic (FAO statistical area 21). The aggregate discard rate for cold/deep-water shrimp fisheries is 39 percent, but where use of bycatch reduction devices (BRDs) is mandated (e.g. -
DIET of the OILFISH Ruvettus Pretiosus (PERCIFORMES: GEMPYLIDAE) in the SAINT PETER and SAINT PAUL ARCHIPELAGO, BRAZIL
BRAZILIAN JOURNAL OF OCEANOGRAPHY, 60(2):181-188, 2012 DIET OF THE OILFISH Ruvettus pretiosus (PERCIFORMES: GEMPYLIDAE) IN THE SAINT PETER AND SAINT PAUL ARCHIPELAGO, BRAZIL Danielle de Lima Viana*, Mariana Travassos Tolotti, Mariana Porto, Rodolfo Jorge Vale de Araújo, Teodoro Vaske Júnior and Fabio Hissa Vieira Hazin Universidade Federal de Pernambuco - Departamento de Pesca (Av. Dom Manuel de Medeiros, S/N, 52171-030 Jaboatão dos Guararapes, PE, Brasil) *Corresponding author: [email protected] ABSTRACT Feeding aspects of the oilfish , Ruvettus pretiosus , were studied based on 360 stomachs of both male and female specimens caught off the Saint Peter and Saint Paul Archipelago. The total length of the specimens ranged from 52.4 cm to 189.0 cm. Of the 360 stomachs examined, 135 presented some food and 225 were empty. Thirty-four taxa were identified, represented by 16 fish, 17 cephalopods and 1 crustacean. The stabilization of the food items richness was attained at 35 food items and 104 stomachs, approximately. A remarkable predation upon the flying fish Cheilopogon cyanopterus was observed around SPSPA, directly related to the main reproductive period of this species in the area. The oilfish’s food spectrum shows that the species feeds on a wide vertical range in the water column, catching prey items at the surface or in shallow waters, as well as epi-mesopelagic fish, in addition to mesopelagic cephalopods. RESUMO Aspectos alimentares do peixe-prego, Ruvettus pretiosus , foram estudados com base nos estômagos de 360 espécimes, de ambos os sexos, capturados nos arredores do Arquipélago de São Pedro e São Paulo. -
Fao Species Catalogue
FAO Fisheries Synopsis No. 125, Volume 15 ISSN 0014-5602 FIR/S1 25 Vol. 15 FAO SPECIES CATALOGUE VOL. 15. SNAKE MACKERELS AND CUTLASSFISHES OF THE WORLD (FAMILIES GEMPYLIDAE AND TRICHIURIDAE) AN ANNOTATED AND ILLUSTRATED CATALOGUE OF THE SNAKE MACKERELS, SNOEKS, ESCOLARS, GEMFISHES, SACKFISHES, DOMINE, OILFISH, CUTLASSFISHES, SCABBARDFISHES, HAIRTAILS AND FROSTFISHES KNOWN TO DATE 12®lÄSÄötfSE, FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS FAO Fisheries Synopsis No. 125, Volume 15 FIR/S125 Vol. 15 FAO SPECIES CATALOGUE VOL. 15. SNAKE MACKERELS AND CUTLASSFISHES OF THE WORLD (Families Gempylidae and Trichiuridae) An Annotated and Illustrated Catalogue of the Snake Mackerels, Snoeks, Escolars, Gemfishes, Sackfishes, Domine, Oilfish, Cutlassfishes, Scabbardfishes, Hairtails, and Frostfishes Known to Date by I. Nakamura Fisheries Research Station Kyoto University Maizuru, Kyoto, 625, Japan and N. V. Parin P.P. Shirshov Institute of Oceanology Academy of Sciences Krasikova 23 Moscow 117218, Russian Federation FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS Rome, 1993 The designations employed and the presenta tion 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 -40 ISBN 92-5-103124-X All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without 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. -
(2014) on the Red Sea Fishes of the Perciform Genus Pempheris
Zootaxa 3887 (3): 377–392 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2014 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3887.3.5 http://zoobank.org/urn:lsid:zoobank.org:pub:63968BBF-9C06-4A74-8093-0165770A6325 Rebuttal to Koeda et al. (2014) on the Red Sea fishes of the perciform genus Pempheris JOHN E. RANDALL1, BENJAMIN C. VICTOR2, TILMAN J. ALPERMANN3, SERGEY V. BOGORODSKY4, AHMAD O. MAL5, UKKRIT SATAPOOMIN6 & K.K. BINEESH7 1Bishop Museum, 1525 Bernice St., Honolulu, HI 96817-2704 USA. E-mail: [email protected] 2Ocean Science Foundation, 4051 Glenwood, Irvine, CA 92604 and Guy Harvey Research Institute, Nova Southeastern University, 8000 North Ocean Drive, Dania Beach, FL 33004 USA. E-mail: [email protected] 3Senckenberg Research Institute and Natural History Museum Frankfurt, Senckenberganlage 25, D-60325 Frankfurt a.M., Germany. E-mail: [email protected] 4Station of Naturalists, Omsk, Russia. E-mail: [email protected] 5Department of Marine Biology, Faculty of Marine Sciences, King Abdulaziz University, Jeddah, Saudi Arabia E-mail: [email protected] 6Phuket Marine Biological Center, P.O. Box 60, Phuket 83000, Thailand. E-mail: [email protected] 7National Bureau of Fish Genetic Resources, Central Marine Fisheries Research Institute campus, P.B. No. 1603, Kochi-682 018, Ker- ala, India. E-mail: [email protected] Abstract Koeda et al. (2014) published a review of fishes of the genus Pempheris of the Red Sea. They concluded that there are four species: P. adusta Bleeker, P. mangula Cuvier, P. nesogallica Cuvier, and a new species, P. -
A New Subspecies from Miyako-Jima Island of the Ryukyu Islands, Japan
PhytoKeys 148: 51–70 (2020) A peer-reviewed open-access journal doi: 10.3897/phytokeys.148.48957Sedum formosanumRESEARCH subsp. miyakojimense ARTICLE (Crassulaceae) 51 http://phytokeys.pensoft.net Launched to accelerate biodiversity research Sedum formosanum subsp. miyakojimense (Crassulaceae), a new subspecies from Miyako-jima Island of the Ryukyu Islands, Japan Takuro Ito1,2, Chih-Chieh Yu3, Masatsugu Yokota4, Goro Kokubugata2 1 Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan 2 Department of Botany, National Museum of Nature and Science, Amakubo 4-1-1, Tsukuba, Ibaraki 305-0005, Japan 3 CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, China 4 Laboratory of Ecology and Systematics, Faculty of Science, University of the Ryukyus, Senbaru 1, Nishihara, Okinawa 903-0213, Japan Corresponding author: Takuro Ito ([email protected]) Academic editor: Y. Mutafchiev | Received 16 January 2020 | Accepted 24 March 2020 | Published 26 May 2020 Citation: Ito T, Yu C-C, Yokota M, Kokubugata G (2020) Sedum formosanum subsp. miyakojimense (Crassulaceae), a new subspecies from Miyako-jima Island of the Ryukyu Islands, Japan. PhytoKeys 148: 51–70. https://doi.org/10.3897/ phytokeys.148.48957 Abstract We re-examined the taxonomic status of plants treated as Sedum formosanum (Crassulaceae) from Miyako- jima Island of the Ryukyu Islands, Japan, using morphological comparison and molecular phylogenetic analyses with related species. In morphology, plants from Miyako-jima Island bore a close resemblance to the other plants of S. formosanum, but differed in being perennial, polycarpic, and having lateral axillary branches.