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Schindler, O. (1953). Unsere Süßwasserfische. Stuttgart.
Schlüsselwörter: Fisch, Bestimmungswerk
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Schindler, O. (1975). Unsere Süßwasserfische. Stuttgart: Franckh'sche Verlagshandlung.
Schlüsselwörter: Fisch, Bestimmungswerk
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Baltzly, M., & Hendrickson, D. A. The new Desert Fishes Council World Wide Web server on Internet.
Zusammenfassung: The Desert Fishes Council has moved into the world of electronic publishing on the Internet. Dr. John Rinne (U.S. Forest Service, Flagstaff, Arizona) has allowed the first author to scan his well-known collection of fish photographs into digital format. They have been variously cropped and enhanced, and can now be viewed in different formats or downloaded by anyone in the world with Internet access. The second author is converting the Proceedings (staring with Vol. 24 [1992 meeting]) to hypertext format, so they may be browsed, searched or downloaded. All future DFC Proceedings will be published on WWW at the same time final hard copy is sent to the printer. The World Wide Web (WWW) allows anyone who has obtained free, public domain client software (readily available on Internet), primarily one called Mosaic, to browse effortlessly through multimedia files (graphics, video, sound, formatted text) that are stored on computers around the globe. Multimedia presentations can combine real-time sound, graphics and video with text. Exploration of WWW and the DFC system using Mosaic is facilitated by hypertext links, which offer the simplicity of “point and click” movement through the “cyberspace” of WWW. The Texas Memorial Museum of the University of Texas at Austin is providing storage space for these large DFC files at no charge as a pilot project for other WWW projects at UT, and can likely continue to provide this service for the forseeable future if it receives the usage and growth are predicted. All DFC members are encouraged to provide additional text, graphics and other files for inclusion in the system. Growth of the Internet has been phenomenal, and as more and more people throughout the world obtain access to it, these electronic files will allow DFC to better reach a far larger audience than was formerly possible. DFC members and others using materials provided here will be better equipped to educate the public regarding the plight of desert fishes. The system should also improve communications among ourselves and with others regarding fish conservation efforts throughout the world, and eventually should lead to reduced costs of publishing the Proceedings.
Schlüsselwörter: deserts-; freshwater-fish; computers-; conferences-, World-Wide-Web; internet-
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Ragen, T. J. (1991). The estimation of theoretical population levels for natural populations.
Zusammenfassung: The focus of this dissertation was the estimation of theoretical reference levels such as K, the environmental carrying capacity, and MNPL, the maximum net productivity level, for three fishes off Southern California and for the northern fur seal (Callorhinus ursinus) population of St. Paul Island, Alaska. The estimation techniques were based on computer modeling of historical population trends. The assessment of these theoretical reference levels for nature populations is fundamentally important to the development and testing of concepts in theoretical ecology and population dynamics. In the first study, maximum-likelihood estimates of pre-exploitation biomass were made for the white seabass (Atractoscion nobilis) and the yellowtail (Seriola lalandei) by assuming that development of corresponding commercial fisheries led to a shift in size distributions of these fishes, as indicated by records of the Avalon Tuna Club, Santa Catalina Island, California. Pre-exploitation biomass for Southern California populations of both these fishes was estimated to be about 20,000 tons. The pre-exploitation biomass of the giant sea bass (Stereolepis gigas) was estimated to be 1300 tons. Due to insufficient natural history information, this estimate was based on commercial catch records only. In the second study, estimates of theoretical reference levels for the northern fur seal population of St. Paul Island were based on computer simulations of pup production from 1912 to 1970, repetitive simulations were used to construct frequency distributions of estimates for MNPL, K, the number of pups born at MNPL and K, and the ratio MNPL/K. These distributions serve as a measure of the confidence that can be placed in single estimates of reference levels, and thereby provide a general context within which these reference levels can be evaluated. The final study of this dissertation investigated the pelagic migration of northern fur seal pups. Results indicated that initial migration paths for these pups are more widely dispersed than previously assumed. This information contributes to the understanding of northern fur seal life histories. A fuller understanding of life history information will eventually facilitate more accurate modeling of northern fur seal population dynamics. (DBO)
Schlüsselwörter: environmental-conditions; biological-production; marine-mammals; marine-fish; population-dynamics; size-distribution; computer-programs; simulations-; frequency-analysis; migratory-species; Callorhinus-ursinus; Atractoscion-nobilis; Seriola-lalandei; Stereolepis-gigas; INE,-USA,-California; ISW,-USA,-Alaska,-St.-Paul-Island, carrying-capacity
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Sparre, P. J. (1994). The data requirements for basic fisheries bio-economics.
Zusammenfassung: The paper discusses the links between fish stock assessment and economics of fisheries, as perceived by a fisheries biologist. It focuses on the type and format of data required from the biological side as well as the economic side, to merge the biological and the economic methodologies into a bio-economic methodology. The biological methodology in question derives from the analytical approach, which operates with cohorts and size distributions of several stocks exploited by several fleets fishing on several fishing grounds. The economic methodology comprises costs and earnings analysis of the harvesting and the processing sectors, and computations of indicators for the economic performance of the sub-sectors. The paper is based on applications of bio-economics to tropical fisheries (targeting at shrimps). The methodology has been applied during a series of workshops and seminars organized by the Fisheries Department of FA0. The paper addresses both biologists and economists.
Schlüsselwörter: fishery-economics; stock-assessment; economic-feasibility
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Schulz, U. (1985). Telemetrische Untersuchungen tagesrhythmischer Aktivitäten des Brachsens (Abramis brama L.) im Bodensee-Untersee. Bielefeld: Universität Bielefeld.
Schlüsselwörter: Fisch, Brachsen, Brachsen, Abramis brama, Telemetrie
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Bauer, A. (1992). Telemetrische Untersuchung zur Ortsbewegung des Brachsen (Abramis brama L.) in einem eutrophen See Oberschwabens. Kiel: Christian-Albrechts-Universität.
Schlüsselwörter: Fisch, Brachsen, Abramis, Wanderung
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Amlacher, E. (1992). Taschenbuch der Fischkrankheiten – Grundlagen der Fischpathologie (6th ed.). Jena: Gustav Fischer Verlag.
Schlüsselwörter: Fisch, Parasit
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Schmid, W. (1993). Tagesfreßrhythmik von Felchenlarven (Coregonus lavaretus L.): Vergleich von Lebend- zu Trockenfutter. Konstanz: Universität.
Schlüsselwörter: Fisch, Nahrung, Felchen, Coregonus, Rhythmik
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Sterba, G. (1990). Süßwasserfische der Welt. Leipzig: Urania Verlagsgesellschaft.
Schlüsselwörter: Fisch, Bestimmungswerk
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