A Chart of the Coasts of Peru, Quito, Popayan and the Isthmus of Darien Auteur(s) : Moll, Herman, 1732 Éditeur(s) : Printed for Eliz. Nutt for John Nicholson at the King's Arms in Little Britain ( London ) Résumé : (Funding) Funded in part by the University of Florida, the Florida Heritage Project of the State University Libraries of Florida, the Institute for Museum and Library Services, and the U.S. Department of Education's TICFIA granting program. Copper engraving, hand colored. Relief shown pictorially. Historical nautical chart from Cape Blanco in Costa Rica along the Pacific coast of South America to Arica in northern Chile. Title in rectangle box with scale bar. Includes compass rose oriented with north towards the left and rhumb lines. Longitude lines not shown on map, geographic coordinates estimated from a modern map of the area. From: Moll's Atlas geographus, vol. 5, dated 1717. London: printed for Eliz. Nutt. (Citation/Reference) Other author(s),etc:Moll, Herman 1732 Atlas geographus, or a compleat system of geography Droits : This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions may require permission of the copyright holder. The Smathers Libraries would like to learn more about this item and invite individuals or organizations to contact Digital Services (UFDC@uflib.ufl.edu) with any additional information they can provide. 003879570 http://ufdc.ufl.edu/UF00076809/00001 | Partager Voir aussi South America, Panama Early maps Portolan charts Pacific Coast (South America) -- Maps -- Early works to 1800 Panama, Isthmus of (Panama) -- Maps -- Early works to 1800 Peru -- Maps -- Early works to 1800 Popayán (Colombia) -- Maps -- Early works to 1800 Quito (Ecuador) -- Maps -- Early works to 1800 |
United States--Gulf coast, Florida, Everglades National Park ; Everglades National Park ; Whitewater Bay ; Shark River to Longmans River Auteur(s) : U.S. Coast and Geodetic Survey Éditeur(s) : U.S. Coast and Geodetic Survey ( Washington D.C ) Résumé : Depths shown by isolines and soundings. "Soundings in feet at mean low water". Shows navigable lakes, rivers, bays and canals within the Everglades National Park as well as a portion of the Gulf of Mexico and Florida Bay; also distinguishes areas of mangrove, marsh and marl prairie. Orientation compass shown at 7 points. Includes tidal information. C.&G.S. 598-599. "Continued on chart 1250". (Funding) Funded in part by the University of Florida, the Florida Heritage Project of the State University Libraries of Florida, the Institute for Museum and Library Services, and the U.S. Department of Education's TICFIA granting program. (Statement of Responsibility) U.S. Coast and Geodetic Survey. Florida Everglades National Park Mexico, Gulf of Everglades National Park (Fla.) Whitewater Bay (Fla.) Mexico, Gulf of Whitewater Bay (Fla.) Mexico, Gulf of Gulf Coast (Fla.) Florida Everglades National Park Mexico, Gulf of Everglades National Park (Fla.) Whitewater Bay (Fla.) Droits : All rights reserved, Board of Trustees of the University of Florida. 002895824 52198639 APC7398 http://ufdc.ufl.edu/UF00005039/00001 | Partager |
Carte du Canal de Bahama Auteur(s) : Bellin, Jacques Nicolas, 1703-1772 Bellin, Jacques Nicolas, 1703-1772 Éditeur(s) : Didot ( Paris ) Résumé : (Citation/Reference) Phillips, From: Description des débouquements qui sont au nord de l'isle de Saint Domingue..."Pl.XXXI." "Suivant les Remarques de plusieurs Navigateurs eten particulier des Anglais." Shows Archipelagic treatment of Florida which flourished during the early and mid 18th Century. Relief shown pictorially, dephs by soundings. Includes northwestern coast of Cuba. North oriented towards the right. Includes watermark with bunch of fruits. (Funding) Funded in part by the University of Florida, the Florida Heritage Project of the State University Libraries of Florida, the Institute for Museum and Library Services, and the U.S. Department of Education's TICFIA granting program. Bahamas Florida, Straits of Florida Bahamas Florida, Straits of Florida Bahamas Florida, Straits Florida Bahamas Florida, Straits of Florida Bahamas Florida, Straits of Florida Bahamas Florida, Straits Florida Droits : This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions may require permission of the copyright holder. The Smathers Libraries would like to learn more about this item and invite individuals or organizations to contact Digital Services (UFDC@uflib.ufl.edu) with any additional information they can provide. 002880450 APB1701 77840700 http://ufdc.ufl.edu/UF00004036/00001 | Partager Voir aussi Maps -- Early works to 1800 ( lcsh ) Maps -- Early works to 1800 ( lcsh ) Maps -- Early works to 1800 ( lcsh ) Early maps -- No scale -- 1768 ( local ) Early maps -- No scale -- 1768 ( local ) Early maps -- No scale -- 1768 ( local ) Early works to 1800 -- No scale -- 1768 ( local ) Early works to 1800 -- No scale -- 1768 ( local ) Early works to 1800 -- No scale -- 1768 ( local ) No scale -- 1768 ( local ) |
Insvlæ Americanæ in Oceano Septentrionali cum terris adiacentibus ; Insulæ Americanæ in Oceano Septentrionali cum terris adjacentibus Auteur(s) : Blaeu, Willem Janszoon 1571-1638 Blaeu, Willem Janszoon 1571-1638 Theatre du monde 1635 Éditeur(s) : Amsterdam : G. et I. Blaeu, 1635 Amsterdam : G. et I. Blaeu, 1635 Résumé : Detached from and originally published in the French ed. of W.J. Blaeu's atlas: Le theatre du monde ou Novvel atlas, 1635. Shows southeast coast of North America from Virginia to north coast of South America to east of Trinidad, west coast of Central America, West Indies. Includes embellished title cartouche, coats-of-arms. ill. scale and ill. of ships at sea. Includes scales in milliaria germanica and milliaria hispanica. Text in French on verso: Les isles de Amerique en l'ocean septentrional, audevant du Golfe de Mexique, & quelques provinces du continent. Engraved. Hand colored. Has vertical fold line at center of sheet. Relief represented by hachures. UCF Libraries' copy has reinforcement on right edge. This item is part of the West Indies collection. (Language) Title in Latin: place names primarily in Spanish and Latin ; text on verso in French. Caribbean area North America South America Caribbean area West Indies West Indies Droits : All rights to images are held by the respective holding institution. This image is posted publicly for non-profit educational uses, excluding printed publication. For permission to reproduce images and/or for copyright information contact Special Collections & University Archives, University of Central Florida Libraries, Orlando, FL 32816 phone (407) 823-2576, email: speccoll@mail.ucf.edu G4390 1635.B | Partager |
Carte dell'isola della Guadelupa :/ Auteur(s) : Bellin, Jacques Nicolas, 1703-1772 Bellin, Jacques Nicolas, 1703-1772 Formaleoni, V. A ( Vincenzio Antonio ), 1752-1797 Éditeur(s) : V. Formaleoni ( Venice, Venice ) Résumé : (Citation/Reference) Phillips, Original coordinates on map based on Prime Meridian: Paris. Shows parishes, towns, forts, churches, coast shoals and relief. Relief shown pictorially. (Statement of Responsibility) di M.B. Ingre. della marina, 1781. Guadeloupe Guadeloupe Droits : This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions may require permission of the copyright holder. The Smathers Libraries would like to learn more about this item and invite individuals or organizations to contact Digital Services (UFDC@uflib.ufl.edu) with any additional information they can provide. 664700720 http://ufdc.ufl.edu/UF00102966/00001 | Partager |
Colonies Françaises (en Amérique) : Ile St. Martin, Ile de Terre Neuve, Guyane Française, Les Iles St. Pierre et Miquelon / Auteur(s) : Levasseur, Victor. Éditeur(s) : Combette Combette ( Paris ) Résumé : Four small map surrounded by decorative border containing: view of land from sea, tropical vegetation, text, birds (hummingbirds?), bracket deer, peccaries, porcupine, sea shells, fish, a tiger (meant to be a jaguar?), crates containing cotton, coffee, etc., and a man. Ile de Terre Neuve is part of Labrador (Canada). St. Pierre and Miquelon are French islands off the coast of Newfoundland (Canada). Guyana, formerly French Guyana, is on the northeast coast of South America. French Guyana St. Martin Droits : All rights reserved by the source institution. 2005-226-1 | Partager |
Cap Français, Saint Domingue / Buttura del., Lacau Jue sculp. Auteur(s) : unknown Éditeur(s) : Delloye? Delloye? ( Paris ) Résumé : Cap Français, Cap Haïtien, or Le Cap, is located on Haiti s northern coast. French settlers named the town Cap Français, and made it the capital of St. Domingue. The name was changed to Cap Haïtien during the 19th century. Title at top of page: French Militaire. Probably from France militaire / Abel Hugo. -- Paris : Delloye, 1838. -- 5 v. : plates, ports., maps ; 28 cm. Cap Haïtien (Haiti) Droits : All rights reserved by the source institution. 2005-229-2 | Partager |
Plan de l'isle à Vache à la coste de sud de S. Domingue Auteur(s) : Bellin, Jacques Nicolas, 1703-1772 Bellin, Jacques Nicolas, 1703-1772 Éditeur(s) : Bellin, Jacques Nicolas ( Paris ) Résumé : Oriented with north toward the upper left. Map shows light watermark with text. Relief shown by hachures. Depths shown by soundings. Title refers to Vache Island on the south coast of Dominican Republic, part of today's Haitian territory. "Tome I, no. 73." From: Le Petit Atlas Maritime Recueil De cartes Et Plans Des Quatre Parties Du Monde. "Tome I. No. 73" Philips No. 3508 (Funding) Funded in part by the University of Florida, the Florida Heritage Project of the State University Libraries of Florida, the Institute for Museum and Library Services, and the U.S. Department of Education's TICFIA granting program. Vache Island (Haiti) Vache Island (Haiti) Vache Island (Haiti) Vache Island (Haiti) Vache Island (Haiti) Vache Island (Haiti) Droits : This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions may require permission of the copyright holder. The Smathers Libraries would like to learn more about this item and invite individuals or organizations to contact Digital Services (UFDC@uflib.ufl.edu) with any additional information they can provide. 002558559 AMS4818 05409753 http://ufdc.ufl.edu/UF00066652/00001 | Partager |
Carte des isles Antilles ou du vent : avec la partie orientale des isles sous le vent. Auteur(s) : Bonne, Rigobert Éditeur(s) : Rigobert Rigobert ( [Paris] ) Résumé : Shows Lesser Antilles from Puerto Rico to Trinidad, and island off the Venezuela coast. Phillips Atlases 5992. From Atlas géographique de toutes les parties connues du globe terrestre pour servir à l'Histoire philosophique et politique des etablissemens et du commerce des Européens dans les deux Indes et à l'histoire generale des voyages et particuliereinen à l'education de la jeunesse. -- Paris. Digital image.2004.300 ppi tiff. All rights reserved by the source institution. Lesser Antilles (Puerto Rico to Trinidad and Venezuelan coast) Droits : All rights reserved by the source institution. 2003-350-1 | Partager |
United States--Gulf coast, Florida, Everglades National Park ; Everglades National Park ; Whitewater Bay ; Shark River to Longmans River Auteur(s) : U.S. Coast and Geodetic Survey Éditeur(s) : U.S. Coast and Geodetic Survey ( Washington D.C ) Résumé : Shows navigable lakes, rivers, bays and canals within the Everglades National Park as well as a portion of the Gulf of Mexico and Florida Bay; also distinguishes areas of mangrove, marsh and marl prairie. Orientation compass shown at 7 points. Includes tidal information. C.&G.S. 598-599. "Continued on chart 1250". "Soundings in feet at mean low water". Depths shown by isolines and soundings. (Funding) Funded in part by the University of Florida, the Florida Heritage Project of the State University Libraries of Florida, the Institute for Museum and Library Services, and the U.S. Department of Education's TICFIA granting program. (Statement of Responsibility) U.S. Coast and Geodetic Survey. Florida Everglades National Park. Mexico, Gulf of Mexico, Gulf of Whitewater Bay (Fla.) Mexico, Gulf of Gulf Coast (Fla.) Everglades National Park (Fla.) Whitewater Bay (Fla.) Florida Everglades National Park Mexico, Gulf of Everglades National Park (Fla.) Whitewater Bay (Fla.) Droits : All rights reserved, Board of Trustees of the University of Florida. AAA6304 52198639 http://ufdc.ufl.edu/UF00005038/00001 | Partager |
Plan de la baye et de la ville de St. Louis dans la partie du sud de l'isle de St. Domingue ; Moreau de St. Mery's description de la partie française de Saint-Domingue Auteur(s) : Phelipeau, René, fl. 1748-1784 Éditeur(s) : [s.n.] ( Paris ) Résumé : Plan of St. Louis, a harbor town on the south coast of Haiti. Detailed topography by shading and molehills. "Se trouve à Paris chez le St. Phelipeau, ingénieur géographe, rue St. Jacques au dessus de celle des Mathurins no. 45, 1786. A.P.D.R." Oriented with north toward the upper right. "Latitude 18d 20m 47s, longitude occidentale 76d 6m 17s du méridien de Paris" ; revised to Greenwich meridian in this description. (Funding) Funded in part by the University of Florida, the Florida Heritage Project of the State University Libraries of Florida, the Institute for Museum and Library Services, and the U.S. Department of Education's TICFIA granting program. Haiti -- Sud -- Saint-Louis du Sud Saint-Louis du Sud (Haiti) Saint-Louis du Sud Region (Haiti) Haiti Saint-Louis du Sud (Haiti) Haiti Saint-Louis du Sud (Haiti) Droits : This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions may require permission of the copyright holder. The Smathers Libraries would like to learn more about this item and invite individuals or organizations to contact Digital Services (UFDC@uflib.ufl.edu) with any additional information they can provide. 002881704 APB2966 http://ufdc.ufl.edu/UF00004040/00001 | Partager |
Isles Lvcayes Auteur(s) : Mallet, Alain Manesson, 1630?-1706? Résumé : Shows Bahamas, east coast of Florida, part of Cuba, and fleet of sailing ships; hand-colored Purchase, Joseph H. Fitzgerald Maps Fund Isles Lucayas, Bahamas Cuba East coast of Florida Droits : All rights reserved by the source institution. 2002-223-2 | Partager |
Les Isles Antilles, et le Golfe du Mexique Auteur(s) : Bonne, Rigobert, 1727-1794 Résumé : Map including the coasts of the southern United States, Central America, northern South America, and the West Indies. The map is very detailed, depicting rivers and mountain elevations in all of these areas. Mexico, Gulf of Droits : Use of this item is provided for non-commercial, personal, educational, and research use only. For information about the copyright and reproduction rights for this item, please contact Special Collections, Florida State University Libraries, Tallahassee, Florida. fsu:6691 FSDT2975597 oai:fsu.digital.flvc.org:fsu_6691 http://ufdc.ufl.edu/FSUM000009/00001 | Partager |
Plan of the Aguada Nueva de Puerto Rico Auteur(s) : Jefferys, Thomas, d. 1771 Jefferys, Thomas, d.1771 Éditeur(s) : T. Jefferys ( [London ) Résumé : (Citation/Reference) Phillips, From: A description of the Spanish islands and settlements on the coast of the West Indies. "Plate 32." ; "Page 97." Relief shown pictorially, depths shown by soundings. Watermark with text on center. (Funding) Funded in part by the University of Florida, the Florida Heritage Project of the State University Libraries of Florida, the Institute for Museum and Library Services, and the U.S. Department of Education's TICFIA granting program. Aguada Region (P.R.) San Juan (P.R.) Droits : This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions may require permission of the copyright holder. The Smathers Libraries would like to learn more about this item and invite individuals or organizations to contact Digital Services (UFDC@uflib.ufl.edu) with any additional information they can provide. 002684580 ANF1851 173617695 http://ufdc.ufl.edu/UF90000060/00001 | Partager |
Carte de l'isle de la Guadeloupe Auteur(s) : Bellin, Jacques Nicolas, 1703-1772 Prévost, 1697-1763 Éditeur(s) : Chez Didot ( Paris, Paris ) Résumé : Original coordinates on map based on Prime Meridian: Paris. Shows parishes, towns, forts, churches, coast shoals and relief. Relief shown pictorially. "Tom. XV." below bottom neat line at left "No. 13." below bottom neat line at right. (Statement of Responsibility) Par M.B., ingr. de la mare. 1758. Gaudeloupe Guadeloupe Droits : This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions may require permission of the copyright holder. The Smathers Libraries would like to learn more about this item and invite individuals or organizations to contact Digital Services (UFDC@uflib.ufl.edu) with any additional information they can provide. 664683385 http://ufdc.ufl.edu/UF00102967/00001 | Partager |
West Indies, Trinidad and Tobago--Venezuela, Gulf of Paria ; Gulf of Paria Auteur(s) : United States -- Defense Mapping Agency. -- Hydrographic/Topographic Center Éditeur(s) : The Center ( Bethesda MD ) NOAA Distribution Branch, N/CG 33, National Ocean Service, distributor ( [Riverdale MD ) Résumé : Depths shown by isolines and soundings. Relief shown by contours and spot heights. "From British Admiralty and U.S. charts to 1987." "Soundings in meters." "Copyright 1995 by the United States Government. No copyright claimed under Title 17 U.S.C." Includes compilation diagram, tidal information, and tidal currents data. (Statement of Responsibility) prepared and published by the Defense Mapping Agency, Hydrographic/Topographic Center. Trinidad and Tobago -- Trinidad Venezuela Paria, Gulf of (Venezuela and Trinidad and Tobago) Caribbean Sea Atlantic Coast (Venezuela) 002063436 33825490 AKQ1595 http://ufdc.ufl.edu/UF00065424/00001 | Partager |
Approche sectorielle subtidale : Identification et caractérisation des habitats benthiques du secteur Glénan (Réseau de surveillance benthique - Région Bretagne) Auteur(s) : Ehrhold, Axel Blanchet, Aline Hamon, Dominique Résumé : Ifremer launched and coordinated the development of a strategy for the REBENT network (REseau BENThique) in 2000 to monitor the aftermath of the "Erika" oil spill in December 1999. Its aim is to provide consistent baseline knowledge about coastal benthic habitats and constitute a monitoring tool to detect changes at various scales over time and space. Sector-based seabed habitat mapping in shallow water (< 50 m deep), is currently being conducted throughout Brittany's coastal waters through a combination of geoacoustic marine systems and ground-truthing using biological grab sampling and seabed observations.
Sedimentological and biological results on Glenan area emphasize a great diversity of subtidal habitats and marine species recognized. Sidescan imagery accentuates the complexity of the communities structure in a marine environment distinguished by strong and regulary roughness of the sea. Maerl biocenose is present at the nord-east of the archipelago. Progressively it gives way to mud sediment colonized by Amphiura filiformis and Haploops in the deeper channel. To the west and the south, substratum types are more coarse, occasionally mobiles, composed of essentially sand community with Nephtys and gravelly sand community with Branchiostoma lanceolatum.
Le Rebent (Réseau benthique), initié en 2000 à la suite de la catastrophe de l'Erika, a pour objectif de suivre les habitats benthiques côtiers et de détecter les changements à différentes échelles de temps et d'espace. L'approche sectorielle dans les petits fonds (< 50 m) des côtes bretonnes combine, des moyens de prospection acoustique, afin de délimiter les principaux types de substrats, avec des prélèvements et des observations biologiques pour caractériser les peuplements macrobenthiques. Les résultats des analyses sédimentologiques et faunistiques montrent autour de l'archipel des Glénan, une grande diversité d'habitats et d'espèces reconnues. L'imagerie acoustique fait ressortir la complexité de leur structuration dans un environnement marin soumis à de fortes et régulières périodes d'agitation. La biocénose de maërl occupe le nord-est de l'archipel. Elle laisse place progressivement aux sédiments envasés à Amphiura filiformis et aux vases à Haploops dans le fond du chenal. A l'ouest et au sud, les subtrats sont plus grossiers, essentiellement sableux à Nephtys et sablo-graveleux à Branchiostoma lanceolatum, épisodiquement mobiles. Droits : info:eu-repo/semantics/openAccess http://archimer.ifremer.fr/doc/2006/rapport-2301.pdf http://archimer.ifremer.fr/doc/2006/sup-2301.pdf http://archimer.ifremer.fr/doc/00000/2301/ | Partager Voir aussi Haploops maerl bedforms bedload transport communities benthic macrofauna sidescan sonar habitats mapping Glenan Rebent Télécharger |
A new & accurate map of the Island of Jamaica Auteur(s) : Bowen, Emanuel, d. 1767 Éditeur(s) : s.n. ( London ) Résumé : Inset maps: "A draught of the harbour of Port Antonio & St. Francis on the north east coast of Jamaica" ; "A draught of Port Royal or Kingston Harbour in Jamaica." Numbered "N⁰64." Shows boundaries, roads, forests, plantations and settlements. Relief shown pictorially, water depth by soundings. London meridian. Island of Jamaica. (Funding) Funded in part by the University of Florida, the Florida Heritage Project of the State University Libraries of Florida, the Institute for Museum and Library Services, and the U.S. Department of Education's TICFIA granting program. (Statement of Responsibility) by Eman. Bowen. England -- London Jamaica Jamaica Droits : This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions may require permission of the copyright holder. The Smathers Libraries would like to learn more about this item and invite individuals or organizations to contact Digital Services (UFDC@uflib.ufl.edu) with any additional information they can provide. 43216717 http://ufdc.ufl.edu/UF00081600/00001 | Partager |
Issues About Retrieving Sea Surface Salinity in Coastal Areas From SMOS Data Auteur(s) : Zine, S Boutin, J Waldteufel, P Vergely, J.l. Pellarin, T Lazure, Pascal Éditeur(s) : IEEE Résumé : This paper aims at studying the quality of the sea surface salinity (SSS) retrieved from soil moisture and ocean salinity (SMOS) data in coastal areas. These areas are characterized by strong and variable SSS gradients [several practical salinity units (psu) on relatively small scales: the extent of river plumes is highly variable, typically at kilometric and daily scales. Monitoring this variability from SMOS measurements is particularly challenging because of their resolution (typically 30-100 km) and because of the contamination by the nearby land. A set of academic tests was conducted with a linear coastline and constant geophysical parameters, and more realistic tests were conducted over the Bay of Biscay. The bias of the retrieved SSS has been analyzed, as well as the root mean square (rms) of the bias, and the retrieved SSS compared to a numerical hydrodynamic model in the semirealistic case. The academic study showed that the Blackman apodization window provides the best compromise in terms of magnitude and fluctuations of the bias of the retrieved SSS. Whatever the type of vegetation cover, a strong negative bias, greater than 1 psu, was found when nearer than 36 km from the coast. Between 44 and 80 km, the type of vegetation cover has an impact of less than a factor 2 on the bias, and no influence further than 80 km from the coast. The semirealistic study conducted in the Bay of Biscay showed a bias over ten days lower than 0.2 psu for distances greater than 47 km, due to an averaging over various geometries (coastline orientation, swath orientation, etc.). The bias showed a weak dependence on the location of the grid point within the swath. Despite the noise on the retrieved SSS, contrasts due to the plume of the Loire River and the Gironde estuary remained detectable on ten-day averaged maps with an rms of 0.57 psu. Finally, imposing thresholds on the major axis of the measurements brought little improvement to the bias, whereas it increased the rms and- could lead to strong swath restriction: a 49-km threshold on the major axis resulted in an effective swath of 800-900 km instead of 1200 km. NOT CONTROLLED OCR Transactions on geoscience an remote sensing IEEE (0196-2892) (IEEE), 2007-07 , Vol. 45 , N. 7 , P. 2061-2072 Droits : 2007 IEEE http://archimer.ifremer.fr/doc/2007/publication-3643.pdf DOI:10.1109/TGRS.2007.894934 http://archimer.ifremer.fr/doc/00000/3643/ | Partager |
Assessment of tropical shrimp aquaculture impact on the environment in tropical countries, using hydrobiology, ecology and remote sensing as helping tools for diagnosis Auteur(s) : Fuchs, Jacques Martin, Jean-louis M. Populus, Jacques Résumé : After a period of rapid development of the sites (an increase in both reared surface area and production), tropical shrimp aquaculture is currently being faced with critical problems due to economical and ecological constraints. In many countries with favourable conditions for shrimp aquaculture such as indonesia or Vietnam, sites are often badly selected and/or over-exploited. This conducts to sorne extent to decreases or collapses in the production due to the difficulty in predicting the maximum production capacity of the sites. Furthermore, it appears that production sustainability depends on many factors among which socio-economy and ecolo gy are of prime importance.
The STD3 project titled « Assessment of tropical shrimp aquaculture impact on the environment in tropical countries using hydrobiology, ecology and remote sensing as helping tools for diagnosis )) was initiated in 1994, with the aim to study the sustainability of marine shrimp aquaculture in tropical areas, main! y Indonesia and Vietnam, through the following tasks: (i) improve site selection and study the impact of aquaculture on marine environments presenting a variable sensitivity to organic sewage, (ii) analyse the socio-economical aspects and profitability of the aquaculture industry and of common resources (iii) use remote sensing and geographical data bases for diagnosis and monitoring of site degradation (iv) reinforce the capacity of Asian
scientists through training.
Severa! aquaculture sites have been investigated in the Lampung region (South Sumatra, Indonesia), the Mekong delta (Vietnam) and on the West coast of New-Caledonia, providing a large range of typical ecosystems encountered in Asia and in the Pacifie, from coralline sites to coastal plains with mangrove and deltaic areas. The study concerned the spatial structure and seasonal influence of these ecosystems, the temporal variation during the course of the project (3 years) and the relation between the ecological structure and farm productions.
Remote sensing provides a synoptic vision over large land expanses. Severa! scenes were processed for landuse mapping using conventional classification techniques. Concerning water quality assessment, a general relation for the Java sea was found between image and field data in terms of total suspended matter. Applying this relation to a new site in Sumatra has provided an initial approach to water type and, together with land use mapping, a preliminary assessment of the suitability of the area to shrimp aquaculture development.
Socio-economic research has been focused on the identification ofneeds for collective action, including public policy, in the perspective of shrimp farming sustainability. The main concern is in the regulation of shrimp farming intensification and extensification at the scale of coastal ecosystemic entities in a common property resource management perspective. The common considered here is coastal water quality. Comparing the local development profiles and the institutional grounds for the design and implementation of collective management rules shows that variables such as land tenure system, farm owner socio-economic profile, social homogeneity or heterogeneity of the farmers are key factors to analyse the potential for sustainability. The defmition of
water quality and the possible means to ensure its collective management are discussed. The main conclusion is that the economie incentives to farming development are strong but there is no significant difference among traditional, semi-intensive and intensive systems in terms of economie efficiency or wealth distribution.
The description of the functioning of the different kinds of ecosystems make it possible to give an advice concerning the positioning of the activity inside the ecosystem, and furthermore to have a reference state in order to determine the impact of the activity on the coastal environnement. This impact can be summarized as an increase in the concentration of total suspended matt€?r, of particulate organic matter and of sulfate reducing bacterias. This organic ma~.er is either issued from rearing activities or from telluric origine, due to mangrove eradication when building the ponds.
An evaluation of the relationship existing between productivity and characteristics of each ecosystem bas been conducted by correlating ecological indicators data (concentration of total suspended matter, particulate organic matter, chlorophyll, percentage of pheopigments in total pigments and cyanobacteria and sulfatereducing bacteria in water and sediments) with the average production of the farms. This comparison lead to the compilation of a scale of observed production integrating the range of these environmental parameters with shrimp production levels, bound to facilitate the positioning of shrimp farming in relation with the confmement leve! of each ecosystem.
Lastly, ali geographie data originated from the various compartments of the study have been geo-referenced and loaded into a geographical information system. This allows to display any query made on spatial variables and their related statistical data, including the ir variations over the last few years and to reveal patterns and phenomena otherwise not obvious. Le programme mis en oeuvre par la DRV (Paris, CREMA-L'Houmeau, DELIAO Brest, COP Tahiti, GIE/RA Nouvelle Calédonie), dans le cadre d'un projet européen STD3 «(Sciences et Technique au Service du Développement», en collaboration avec l'Université de Montpellier II, l'Ecole Nationale d'Agronomie de Rennes, l'ITC (Hollande), l'Institut Océanographique de Nha Trang (Vietnam), le BADC de Jepara et le BPPT de Jakarta (Indonésie), avait pour but la mise au point de méthodes permettant d'améliorer la sélection des sites ainsi que le suivi du développement et de l'impact de l'aquaculture des crevettes Péneides en milieu tropical pour éviter la surexploitation. Quatre axes de recherche ont été défmis : a) identifier la nature et quantifier les rejets de déchets issus de ce type d'aquaculture, b) définir les caractéristiques écologiques des écosystèmes susceptibles d'accueillir l'activité aquacole et suivre leur évolution sous l'influence des rejets, c) déterminer l'influence de la gestion des fermes et des ressources (aspects économiques) sur les performances de productivité, d) déterminer la capacité de la télédétection comme outil de diagnostic d'impact à l'échelle de la région, e) mener un programme de formation d'étudiants et jeunes chercheurs Vietnamiens et Indonésiens. Droits : 1998 Ifremer http://archimer.ifremer.fr/doc/00132/24357/22357.pdf http://archimer.ifremer.fr/doc/00132/24357/ | Partager |