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Articles 18811 - 18840 of 21420
Full-Text Articles in Entire DC Network
Formulation Of A Management Scheme For The Swordfish Fishery Of The Eastern Caribbean, Harold F. Upton
Formulation Of A Management Scheme For The Swordfish Fishery Of The Eastern Caribbean, Harold F. Upton
Marine Affairs Theses and Major Papers
During the 1983 season, two U.S. longline vessels initiated the first attempts at the commercial exploitation of swordfish in the Eastern Caribbean. In 1986, the number of U.S. vessels participating in the fishery surpassed 40 with landings of nearly two million pounds per season. The sudden influx of participants and technology to the region has resulted in a variety of user conflicts and associated policy issues. Major areas of concern involve the conservation of a heavily exploited resource and the distribution of benefits which accrue from resource exploitation among the resource-adjacent island states and U.S. fishing operations. This study examines …
Antarctic Peninsula Mysticete Whales: Conservation And Research, Gregory Schofield Stone
Antarctic Peninsula Mysticete Whales: Conservation And Research, Gregory Schofield Stone
Marine Affairs Theses and Major Papers
This paper reports original research from two recent studies in the Antarctic Peninsula area, reviews past sighting information and policies affecting mysticete whales, and recommends future research. Due to poor management by the International Whaling Commission, mysticete whales are among the most severely depleted species groups in the Antarctic. The combined total Antarctic harvest from 1920 to 19867 for blue Balaenoptera musculus, fin B. physalus, sei B. borealis, minke B. acutorostrata and humpback Megaptera novaeangliae whales was over one million animals. The effect of this hunting pressure is the dominant factor determing the present status of Antarctic …
Historical Biogeography: Geography As Evolution, Evolution As Geography, Charles H. Smith
Historical Biogeography: Geography As Evolution, Evolution As Geography, Charles H. Smith
DLPS Faculty Publications
Despite a number of advances in recent years, biogeography remains a field with a poorly developed philosophical core. As a result, its historical and ecological sides remain as isolated from one another as ever. In this essay I argue that a more unified approach to biogeographic studies will become possible only when workers realise that it is necessary to reject absolute space, "geography as handmaiden" approaches to distribution problems in favour of structuralist models compatible with both probabilistic spatial interaction and deterministic phylogenetic kinds of thinking. Pros and cons of regionalist, vicariance, and panbiogeographic approaches are weighed in this regard; …
Age Assessment Of White Bass From Otoliths, Dorsal Spines And Scales, Raj V. Kilambi, Thoniot T. Prabhakaran
Age Assessment Of White Bass From Otoliths, Dorsal Spines And Scales, Raj V. Kilambi, Thoniot T. Prabhakaran
Journal of the Arkansas Academy of Science
Otoliths, dorsal spines, and scales of 85 white bass collected in1987 from a pre-spawning group were used forage assessment. Agreement between spine and otolith ages were 78.3%, between scale and otolith ages was 68.2%. Unlike spine ages, percent agreement of scale ages with otolith ages decreased from small to large fish. Length-frequency analysis in conjunction with ages assessed by the three calcified structures showed that dorsal spines and scales underestimated white bass ages compared to the otoliths. Clarity of the otolith annuli, even of the older fish, makes them a reliable source for white bass age assessment.
Acceptance Of Simulated Oral Rabies Vaccine Baits By Urban Raccoons, John Hadidian, Suzanne R. Jenkins, David H. Johnston, Peter J. Savarie, Victor F. Nettles, David M. Manski, George M. Baer
Acceptance Of Simulated Oral Rabies Vaccine Baits By Urban Raccoons, John Hadidian, Suzanne R. Jenkins, David H. Johnston, Peter J. Savarie, Victor F. Nettles, David M. Manski, George M. Baer
Veterinary Science and Medicine Collection
In summer 1986, a study was conducted to evaluate raccoon (Procyon lotor) acceptance of oral baits that could be used for rabies vaccination, One thousand wax-coated sponge bait cubes were filled with 5 mg of a seromarker (iophenoxic acid), placed in polyethylene bags, and hand-distributed in an 80 ha area within an urban National Park in Washington, D.C. (USA), After 3 wk, target and nontarget animals were trapped and blood samples collected to evaluate bait uptake. Thirty-three of 52 (63%) raccoons had elevated blood iodine levels indicating they had eaten at least one bait, 13 (25%) were negative, and six …
Conspecific Recognition In The Chimpanzee (Pan Troglodytes): Cardiac Responses To Significant Others, Sarah T. Boysen, Gary G. Berntson
Conspecific Recognition In The Chimpanzee (Pan Troglodytes): Cardiac Responses To Significant Others, Sarah T. Boysen, Gary G. Berntson
Sentience Collection
The ability of a chimpanzee (Pan troglodytes) to recognize photographs of conspecifics was evaluated with heart-rate measures. Heart rate was recorded before, during, and after viewing photographs of an aggressive chimpanzee, a friendly companion animal, and an unfamiliar chimpanzee. The subject displayed a differential pattern of heart-rate response to the stimulus animals, without prior experience with the photographs. Responses to the aggressive animal were acceleratory, which suggests a defensive response. Respiratory sinus arrhythmia suggested that this response was associated with sympathetic activation. In contrast, responses to the familiar animal were minimal, whereas cardiac deceleration was observed in response to the …
Sdsu Dairy Digest, South Dakota State University Dairy Club
Sdsu Dairy Digest, South Dakota State University Dairy Club
Dairy Digest
No abstract provided.
1989 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extension Service, South Dakota State University
1989 South Dakota Beef Report, Department Of Animal And Range Sciences, South Dakota State University, Agricultural Experiment Station, South Dakota State University, Cooperative Extension Service, South Dakota State University
South Dakota Beef Report, 1989
This is the complete 1988 South Dakota Beef Report.
Fisheries Management Paper No. 21 - Commercial Fishing Licensing In Western Australia., Fisheries Department Of Western Australia.
Fisheries Management Paper No. 21 - Commercial Fishing Licensing In Western Australia., Fisheries Department Of Western Australia.
Fisheries Management Papers
The purpose of this paper is to provide those in the fishing industry, as well as those planning to enter the industry, with a statement on the policies on boat licences, boat replacements and transfers, limited and restricted entry licences and licence splitting as they apply to the fisheries managed under the Western Australian Fisheries Act. The pearling industry, which is managed under another Act, is not included.
Perceptions Of The Texas State And Federal Closures Among Inshore Shrimpers In Galveston Bay, Texas And Calcasieu Lake, Louisiana, Nina H. Garfield
Perceptions Of The Texas State And Federal Closures Among Inshore Shrimpers In Galveston Bay, Texas And Calcasieu Lake, Louisiana, Nina H. Garfield
Marine Affairs Theses and Major Papers
The inshore shrimp fisheries along the coast of the Gulf of Mexico represent a significant portion of the total shrimp harvest in the Gulf. The shrimp harvest is allocated to the offshore and inshore fisheries through the use of season closures. In 1981, the Gulf of Mexico Regional Fisheries Management Council began implementing a policy known as the Texas Closure; a seasonal closure of the waters of the Federal Conservation Zone concurrent with the traditional season closure of the state waters of Texas. One impact of the Texas Closure on the offshore fishery has been fleet displacement from Texas to …
Survey And Reconnaissance Of Sea Turtles In The Northern Gulf Of Mexico, Larry Ogren
Survey And Reconnaissance Of Sea Turtles In The Northern Gulf Of Mexico, Larry Ogren
United States Department of Commerce: Staff Publications
This is a report on the results of an aerial survey of nesting beaches conducted during the period from May 16, 1977 to August 11, 1977. The area covered included the barrier beaches and offshore islands from the Florida-Alabama state line to the Rio Grande, Texas. Additional historical information is provided in order to compare current nesting activity with previous years as well as anecdotal observations on the occurrence of sea turtles in this region.
Rock Lobster Industry Advisory Committee Report To The Minister For Fisheries., Rock Lobster Industry Advisory Committee
Rock Lobster Industry Advisory Committee Report To The Minister For Fisheries., Rock Lobster Industry Advisory Committee
Fisheries Management Papers
The total catch of about 12.1 million kilograms for the 1987/88 season, based on processor returns, was an increase of 44% on the 1986/87 season. This very high catch, the third highest on record, resulted from an above average perulus settlement in 1983/84 and a "flow-on" of fast growing animals stemming from the expected high recruitment in 1988/990 caught as "reds" in 1987/88.
The Committee has identified five major elements related to the state of the rock lobster fishery upon which management advice is considered.
a) The undersize fraction of the population.
b) The "whites" which provide a significant proportion …
Pflanzenarten Der Mvr Als Quelle Biologisch Aktiver Verbindungen, L. M. Belenovskaja, L. P. Marakova, T. P. Nadežina, G. A. Kuznecova, V. S. Sinickij
Pflanzenarten Der Mvr Als Quelle Biologisch Aktiver Verbindungen, L. M. Belenovskaja, L. P. Marakova, T. P. Nadežina, G. A. Kuznecova, V. S. Sinickij
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Es wurde der Gehalt an Flavonoiden und Kumarinen von 250 Pflanzenarten, die zu 38 Gattungen, 35 Familien der Flora der \ MVR gehören. untersucht. Bei 50 Arten der Familien Asteraceae, Fabaceae, Lamiaceae wurde ein beträchtlicher Gehalt an Flavoiden festgestellt. Kumarine sind für 60 Arten (17 Familien) nachgewiesen. Ausführlich wurde die Zusammensetzung der Flavonoidc für einzelne Arten der Familie Asteraceae und die der Kumarine für Arten der Familie .Apiaceae untersucht. Es wurden für die Gewinnung biologisch aktiver Flavonoide und Kumarine aussichtsreiche Pflanzenarten gefunden, die die Grundlage für die Herstellung originaler Arzneimittel von einem breiten Wirkungsspektrum bilden können.
Untersucht wurde auljerdem die …
Intensive Animal Industries In The Peel-Harvey Catchment, R W. Payne
Intensive Animal Industries In The Peel-Harvey Catchment, R W. Payne
Journal of the Department of Agriculture, Western Australia, Series 4
The Swan coastal plain to the north and south of Perth is attractive for the intensive production of pigs and poultry for several reasons. It is close to markets, feed manufacturers and labour; has a less extreme climate than inland areas; and is underlain by a large reserve of high quality groundwater.
Because these are all intensive operations, large quantaties of nutrient-rich waste are produced over a very small area. They can severely damage ground and surface waters unless steps are taken to control the wastes which they produce.
This article oulines both the nature of intensive aniamal industries in …
Inhalt Of Erforschung Biologischer Ressourcen Der Mongolei Volksrepublik, Band 6 (1985/1986), Martin-Luther-Universität
Inhalt Of Erforschung Biologischer Ressourcen Der Mongolei Volksrepublik, Band 6 (1985/1986), Martin-Luther-Universität
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Table of contents of Erforschung biologischer Ressourcen der Mongolischen Volsrepublik, Band 6 (1985/1986).
Neue Literatur (Page 102), Martin-Luther-Universität
Neue Literatur (Page 102), Martin-Luther-Universität
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Bibliographical references, new literature listed in Erforschung biologischer Ressourcen der Mongolischen Volsrepublik, Band 6 (1985/1986).
Neue Literatur (Page 62), Martin-Luther-Universität
Neue Literatur (Page 62), Martin-Luther-Universität
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Neue literature listed on page 62 of Erforschung biologischer Ressourcen der Mongolischen Volsrepublik, Band 6 (1985/1986). Als "Ergebnisse der mongolischen Gemeinschaftsreisen von Ornithologen aus der DDR 1979 und 1983" unter Leitung von Dr. G. MAUERSBERGER (Berlin) erschienen in Fortsetzung der Zusammenstellung in Band 5 (5. 58) dieser Publikationsserie folgende Beiträge.
Über Die Konzeptionelle Entwicklung Der Ornithologischen Erforschung .Der Mongolei, G. Mauersberger
Über Die Konzeptionelle Entwicklung Der Ornithologischen Erforschung .Der Mongolei, G. Mauersberger
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Die bisherigen Ergebnisse der Erforschung der mongolischen Avifauna legen einen analytischen Überblick über ihre Geschichte nahe. Unlängst hat PIECHOCIU (1984) ei.nen Abril'; dieser Geschichte von ihren Anfängen bis heute vorgelegt. Ein Blick auf die konzeptionelle Entwicklung offenbart beträchtliche Unausgewogenheiten zwischen den einzelnen ForschunHsdisziplinen.
1. Der Bestand der Vogelfauna ist in den Grundzügen erfa~t, doch blieben weite Lückenoffen, narnentlich in den östlichen und südöstlichen Landesteilen.
2. Die phänologische Forschung wird künftig (nicht nur während des Herbstzuges) zu verstärken, aber auch auf ein weiteres, vor allem ökoloSJisch determiniertes Spektrum auszudehnen sein.
3. Die zooueographischen BeziehunHen erscheinen verhältnismäßig klar, müssen aber neu bewertet …
Title Page And Verso Of Erforschung Biologischer Ressourcen Der Mongolischen Volksrepublik, Band 6 (1985/1986), Martin-Luther-Universität
Title Page And Verso Of Erforschung Biologischer Ressourcen Der Mongolischen Volksrepublik, Band 6 (1985/1986), Martin-Luther-Universität
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Title page and verso of Erforschung biologischer Ressourcen der Mongolischen Volksrepublik band 6 (1985/1986)
Internationale Konferenz "Naturbedingungen Und Biologische Ressourcen Der Mongolischen Volksrepublik" Im Oktober 1986 In Moskau, Michael Stubbe, Werner Hilbig
Internationale Konferenz "Naturbedingungen Und Biologische Ressourcen Der Mongolischen Volksrepublik" Im Oktober 1986 In Moskau, Michael Stubbe, Werner Hilbig
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Vom 14. bis 17. Oktober 1986 organisierte die Akademie der Wissenschaften der UdSSR anläJßlich der 15jährigen erfolgreichen Arbeit der Gemeinsamen Sowjetisch-Mongolischen Komplexen Biologischen Expedition der AdW der UdSSR und MVR eine internationale wissenschaftliche Vortragstagung über die" Naturbedingungen und biologischen Ressourcen der MVR". Auf der Konferenz wurden etwa 200 Teilnehmer registriert: u. a, 28 aus der MVR, 1 aus der VR Ungarn, 13 aus der DDR, 7 aus der VR Polen und 6 aus der ČSSR.
Hohes Lebensalter Von Salpingotus Crassicauda Und Erfolgreiche Fortpflanzung Von Cardioeranius Paradoxus (Mammalia: Dipodidae) In Der Gefangenschaft, Michael Stubbe, Annegret Stubbe, Ravčigijn Samjaa
Hohes Lebensalter Von Salpingotus Crassicauda Und Erfolgreiche Fortpflanzung Von Cardioeranius Paradoxus (Mammalia: Dipodidae) In Der Gefangenschaft, Michael Stubbe, Annegret Stubbe, Ravčigijn Samjaa
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Noch immer gelten zahlreiche Arten der zentralasiatischen Säugetierfauna als kaum bis wenig erforscht. Fundierte ökologische Untersuchungen an den mongolischen Springmausarten liegen bisher nicht vor. Sowohl Salpingotus crassicauda als auch Cardiocranius paradoxus sind durch ihre begrenzten Vorkommen in Kasachstan bzw. Tuva sogar im Rotbuch der Sowjetunion (1985, Literatur S. dort) verankert.
Characteristic Of Balneologically Active Components And Microflora Under Extreme Conditions Of Mineral Waters Of The Mongolian People's Republic, G. M. Špejzer, L. A. Mineeva, N. M. Žigunova, T. N. Putjatina
Characteristic Of Balneologically Active Components And Microflora Under Extreme Conditions Of Mineral Waters Of The Mongolian People's Republic, G. M. Špejzer, L. A. Mineeva, N. M. Žigunova, T. N. Putjatina
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
The distribution of amino acids is irregular in mineral waters. Their content is minimum in cold carbonate waters of hydrocarbonate composition, the highest amino acid concentration does not exceed 0.640 mg N/l.
Hydrothermal solutions are enriched with amino-acids to the greatest extent, the amino contents coming up to 0.780 mg N/l in hydrotherms of sulfate-sodic composition. In thermal waters enriched with hydrosulfides. amino acids are present in quantities up to 1.710 mg N/l.
Mineralwässer wichtige Bestandteile der Biogeosphäre. Die darin enthaltenen spezifischen Komponenten bedingen ihre Wirksamkeit in biologischen Prozessen. die die Entstehung und Lebenstätigkeit von der Mikroflora bis zu den …
The Amino Acid Sequence Of The Adult Sumatran Tiger (Panthera Tigris, Carnivora) Hemoglobins, Meeno Jahan, Aftab Ahmed, Gerhard Braunitzer, Reinhard Göltenboth
The Amino Acid Sequence Of The Adult Sumatran Tiger (Panthera Tigris, Carnivora) Hemoglobins, Meeno Jahan, Aftab Ahmed, Gerhard Braunitzer, Reinhard Göltenboth
Pharmacy Faculty Articles and Research
The complete amino-acid sequences of the hemoglobins from the adult Sumatran tiger (Panthera tigris sumatrae) have been determined on automatic liquid- and gas-phase sequenators. The globin chains were isolated by reverse phase HPLC on a column of Nucleosil-C4.7V-Acetylserine was detected by FAB-mass spectroscopy as TV-terminal amino acid residue of the βI chain. Comparing the sequences of the globin chains of the tiger with that of human Hb-A, 23 substitutions were recognized in the a, 29 in βI and 28 in the βII chain.
Bats Of The Ouachita Mountains, David A. Saugey, Darrell R. Heath, Gary A. Heidt
Bats Of The Ouachita Mountains, David A. Saugey, Darrell R. Heath, Gary A. Heidt
Journal of the Arkansas Academy of Science
A survey was conducted from June, 1982 through January, 1989 to determine the occurrence of bat species in the Ouachita Mountain region of west-central Arkansas and southeastern Oklahoma, with emphasis on censusing lands managed by the USDA Forest Service, Ouachita National Forest. Seven genera and 13 species of bats in the families Vespertilionidae and Molossidae were captured. Species represented included: Eptesicus fuscus, Lasionycteris noctivagans, Lasiurus borealis, Lasiurus cinereus, Lasiurus seminolus, Myotis austroriparius, Myotis keenii, Myotis leibii, Myotis lucifugus, Myotissodalis, Nycticeius humeralis, Pipistrellus subflavus, and Tadarida brasiliensis cynocephala.
Mammals Of Southwestern Arkansas Part Ii. Rodents, Tim W. Steward, V. Rick Mcdaniel, Daniel R. England
Mammals Of Southwestern Arkansas Part Ii. Rodents, Tim W. Steward, V. Rick Mcdaniel, Daniel R. England
Journal of the Arkansas Academy of Science
This study investigated the composition and habitat affinities of the mammalian fauna of southwestern Arkansas. The study area was comprised of the 21 counties located south and/or west of and including Pulaski County. The previously existing data set pertaining to the mammals of Arkansas was notably incomplete and this study area in particular, was poorly known mammalogically. Specimens were collected by standard trapping and salvage methods throughout the study area. The mammals considered during this study were limited to those species meeting a set of criteria designed to eliminate species that had been introduced or artificially maintained. This study has …
Distributional Survey Of Eastern Collared Lizard, Crotaphytus Collaris Collaris (Squamata: Iguanidae), Within The Arkansas River Valley Of Arkansas, Stanley E. Trauth
Distributional Survey Of Eastern Collared Lizard, Crotaphytus Collaris Collaris (Squamata: Iguanidae), Within The Arkansas River Valley Of Arkansas, Stanley E. Trauth
Journal of the Arkansas Academy of Science
A distributional survey of the eastern collared lizard, Crotaphytus collaris collaris, was conducted in the Arkansas River Valley of Arkansas during the summer of 1988. Thirty-four sites in 10 counties were searched. Only three localities yielded colonies of lizards; all were found south of the Arkansas River. This species has a discontinuous distribution in central Arkansas; habitat depletion and overzealous collection may have contributed to the extirpation of lizards at formerly-reported localities in the Arkansas River Valley of Arkansas.
Female Reproductive Traits Of The Southern Leopard Frog, Rana Sphenocephala (Anura: Ranidae), From Arkansas, Stanley E. Trauth
Female Reproductive Traits Of The Southern Leopard Frog, Rana Sphenocephala (Anura: Ranidae), From Arkansas, Stanley E. Trauth
Journal of the Arkansas Academy of Science
Reproductive characteristics of female southern leopard frogs (Rana sphenocephala) were studied from specimens collected in northeastern Arkansas. Egg masses collected from breeding habitats were also examined. A communal ovipositional site was discovered in March 1988 and possessed over 75 egg masses within a 3 m square area. Clutch size from necropsied females averaged 2958.7 eggs, whereas number of eggs per egg mass averaged 2106.5 eggs. Egg diameter averaged 1.76 mm and was similar to populations reported previously in Texas. Positive correlations existed between mean ovum size and female body size and between clutch size and female body size. Negative correlations …
Nesting Dynamics Of The Eastern Bluebird (Sialia Sialis) In Southeastern Illinois, Susan E. Nelle
Nesting Dynamics Of The Eastern Bluebird (Sialia Sialis) In Southeastern Illinois, Susan E. Nelle
Masters Theses
Data collected from 1981 through 1988 from an Eastern Bluebird (Sialia sialis) nesting box trail, involving 512 nests and 2176 eggs, in Crawford County, Illinois, were analyzed and compared to similar published works. The average nesting season lasted 167.4 days, ran from 17 March through 31 August, and was divided into three breeding peaks (or phases). Most breeding pairs were observed with either one or two clutches per season; however, triple-brooded pairs were also present, the clutches of which coincided well with the three peaks. Most data showed a decrease as the season progressed. For example, mean clutch …
A Comparison Of Three Populations Of The Plains Pocket Gophers, Geomys Bursarius Illinoensis, In Illinois, Frank P. Wray
A Comparison Of Three Populations Of The Plains Pocket Gophers, Geomys Bursarius Illinoensis, In Illinois, Frank P. Wray
Masters Theses
Morphometric and karyotypic analyses were performed on three Illinois populations of the Plains Pocket Gopher, Geomys bursarius illinoensis, to determine if any differences were present among the populations. Gophers were collected in three localities: 1) Iroquois and Kankakee Counties (IKC); McLean County (MC); and St. Clair and Madison counties (SMC). All three populations had the same kind and number of chromosomes (2n=72, FN=70). External measurements did not differ significantly among the three populations. Multivariate analysis of variance of the cranial characters showed that a significant (P<.05) difference existed in both males, F(78,1825)=1.65, and females, F(78,1961)=1.63, between the three regions. Duncan's multiple range tests of some cranial measurements showed a clinal increase going from east to west.
Growth Increments And Condition Factors Of Pomoxis Annularis (White Crappie) In The Years Following Completion Of The Pump Storage Reservoir At Lake Charleston, Charleston, Il, 1982-1988, Herbert Clinton Fairow
Growth Increments And Condition Factors Of Pomoxis Annularis (White Crappie) In The Years Following Completion Of The Pump Storage Reservoir At Lake Charleston, Charleston, Il, 1982-1988, Herbert Clinton Fairow
Masters Theses
The purpose of this study was to attempt to document any changes that may have occured due to the construction of a pump storage reservoir at Lake Charleston. The age I white crappie present in the new reservoir were observed to exhibit an increase in first year growth in 1982. This increase was observed in subsequent years but not to the same degree as was observed initially. The age II fish present in the new reservoir in 1982 exhibited a very large increase in growth for the first year of the new impoundment. In the years after 1982 the annual …