Contributions to the geology and paleontology of the Canal Zone, Panama, and geologically related areas in Central America and the West Indies. Decapod crustaceans from the Panama region

Fifty-eight species of Decapods are enumerated from the collections examined by the author. Three species described by other authors are inserted in systematic order, thus making the list complete for the Panama region. All available material in the United States National Museum from Panama and Costa Rica is included; it ranges in age from the Oligocene (Culebra formation) to the Pleistocene.

A Amazonia : as provincias do Pará e Amazonas e o governo central do Brazil

O Barão de Marajó relata a situação da Amazônia (Pará e Amazonas) em relação ao governo central.

Uso das informações da Central de Comunicação Interativa da Câmara dos Deputados pelos gabinetes parlamentares

Analisa como os gabinetes parlamentares utilizam as informações captadas da sociedade por meio dos canais de comunicação da Central de Comunicação Interativa da Câmara dos Deputados: Disque Câmara e Fale Conosco. O foco específico reside na análise dessa relação, com o objetivo de identificar a gestão dos produtos, ou seja, como são percebidos pelos gabinetes os resultados enviados pela Central e ainda qual atenção é dedicada aos mesmos. São evidenciados também os procedimentos quando do recebimento das mensagens e relatórios, os atores envolvidos nesse processo, os critérios de seleção e tratamento das informações, fatores esses que estabelecem o uso dos produtos.

West-Central Florida's aquifers: Florida's great unseen water resources

(PDF has 8 pages.)

Interim report on the hydrologic features of the Green Swamp area in Central Florida

The Green Swamp area in central Florida is another area where man is developing agricultural land from marginal land. Though the area is by no means as extensive as that of the Everglades, the present efforts for its development are similar to the early efforts for developing the Everglades in that many miles of canals and ditches have been constructed to improve the drainage. Lest the early mistakes of the Everglades be repeated, the Florida Department of Water Resources considered that an appraisal of the physical and hydrologic features of the area was needed to determine the broad effects of draining and developing the swamp. This reconnaissance provides information required by the State of Florida for determining its responsibility and policy in regard to the Green Swamp area and for formulating future plans for water management of the area. Some of the features that have been determined are: the amount of rainfall on the area; the pattern of surfacewater drainage; the amount and direction of surface-water runoff; the direction of ground-water movement; the interrelationship of rainfall, surface water, and ground water; the effects of improved drainage facilities'; and the effects of the hydrologic environment on the chemical quality of water of the area.(PDF contains 106 pages.)

Reference Points Based on Dynamic Optimisation: A Versatil Algorithm for Mixed Fishery Management with Bio-economic Agestructured Models

Single-species management objectives may not be consistent within mixed fisheries. They may lead species to unsafe situations, promote discarding of over-quota and/or misreporting of catches. We provide an algorithm for characterising bio-economic reference points for a mixed fishery as the steady-state solution of a dynamic optimal management problem. The optimisation problem takes into account: i) that species are fishing simultaneously in unselective fishing operations and ii)intertemporal discounting and fleet costs to relate reference points to discounted economic profits along optimal trajectories. We illustrate how the algorithm can be implemented by applying it to the European Northern Stock of Hake (Merluccius merluccius), where fleets also capture Northern megrim (Lepidorhombus whiffiagonis) and Northern anglerfish (Lophius piscatorius and Lophius budegassa). We find that optimal mixed management leads to a target reference point that is quite similar to the 2/3 of the Fmsy single-species (hake) target. Mixed management is superior to singlespecies management because it leads the fishery to higher discounted profits with higher long-term SSB for all species. We calculate that the losses due to the use of the Fmsy single-species (hake) target in this mixed fishery account for 11.4% of total discounted profits.

Transformaciones económicas en el sector costero guipuzcoano central durante el siglo XVII

[ES]El presente artículo pretende analizar cómo se desarrolló en el sector costero central de Guipúzcoa (Orio, Zarauz y Guetaria) la llamada «crisis del XVII» y qué mecanismos arbitraron sus habitantes para sobreponerse a las dificultades. En realidad, se trata de analizar y descubrir qué mecanismos utilizaron para llevar a cabo la reconversión y transformación de sus actividades. En el mencionado ámbito tres fueron las principales actividades económicas relacionadas con el mar: el comercio, la construcción naval y la pesca. Las tres actividades tuvieron que llevar a cabo una serie de reestructuraciones y amoldarse continuamente a lo cambiante de la realidad económica de la época a fin de perdurar y sobrevivir.

Appraisal of water resources in the east central Florida region

The rapidly expanding population and economic growth in the seven counties of the East Central Florida Regional Planning Council as shown in Figure 1, herein called the East Central Florida Region or the Region, has resulted in increasing demands on its water resources. Although there is abundant water in the Region as a whole, the water in some areas of the Region is of unacceptable quality for most uses. As the population increases the demand for water will become much greater and the available supply may be reduced by pollution and increased drainage necessitated by urbanization and other land development- Ground-water supplies can be increased by capturing and storing water underground that now drains to the sea or evaporates from swamp areas. Research is needed, however, to develop artificial-recharge methods that are feasible and which will preserve or improve the quality of water in the aquifer. (PDF contains 57 pages)