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Registros recuperados: 11
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Areas ícticas costeras en la Zona Común de Pesca Argentino-Uruguaya (ZCPAU) y en el litoral de la Provincia de Buenos Aires, 1994 OceanDocs
Lasta, C.A.; Bremec, C.; Mianzan, H.W..
Demersal fisheries evaluation data obtained during the cruise H-13/94, in the areas of El Rincón (Buenos Aires Prov., Argentina) and the Argentine-Uruguayan Common Fishing Zone, are analyzed. Species distribution areas are defined through cluster analysis among stations (Q mode), using Bray-Curtis index applied to species abundance data: number of individuals/mn2 and t/mn2. Regarding coastal resources are dynamic and opportunistic, information.
Tipo: Journal Contribution Palavras-chave: Demersal fisheries; Coastal fisheries; Marine fish; Ecological distribution; Demersal fisheries; Coastal fisheries; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_1696.
Ano: 1998 URL: http://hdl.handle.net/1834/2467
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Distribución, áreas de concentración y estructura de la población del bacalao austral (Salilota australis, Gunther 1887)del Atlántico Sudoccidental OceanDocs
Perez Comas, J.A..
The "bacalao austral" is a typical fish from the cold water of the Southwest Atlantic and the Southeastern Pacific oceans, whose fishery has not yet developed. In this work, the structure of the concentration areas of summer and winter distribution and other biological items were analyzed, basing on data provening from R/V"Walther Herwig" and R/V"Shinkai Maru", which operated in these waters during 1978/79/. The trophic vertical migrations are common in this species.
Tipo: Journal Contribution Palavras-chave: Geographical distribution; Size distribution; Sexual maturity; Feeding; Food chains; Length-weight relationships; Population density; Ecological distribution; Vertical migrations; Cod fisheries; Geographical distribution; Feeding; Food chains; Sexual maturity; Population density; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_3014; Http://aims.fao.org/aos/agrovoc/c_7016; Http://aims.fao.org/aos/agrovoc/c_6112.
Ano: 1980 URL: http://hdl.handle.net/1834/2060
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Donnees nouvelles sur le germon Thunnus alalunga Bonnaterre 1788 dans le Nord-Est Atlantic. 2eme partie. Les populations de germons Thunnus alalunga dans le Nord-Est Atlantique. ArchiMer
Aloncle, Henri; Delaporte, Francis.
In this, the 2nd part of a study of Thunnus alalunga in the north-east Atlantic, populations and migrations are considered. The term 'population' is defined. The utilization of H. fusca as a biological 'marker' is considered and tagging experiments are described. Modal classes are examined: summary analysis, detailed analysis of fisheries. Internal temps and regulation are studied. The types of watering are defined and described and a statistical analysis as a function of the watering is made. An attempt at synthesis is made: Azorian, standard. Migratory determinism is examined.
Tipo: Text Palavras-chave: ANE; Thunnus alalunga; Population structure; Tagging; Migrations; Ecological distribution.
Ano: 1974 URL: http://archimer.ifremer.fr/doc/1974/publication-2043.pdf
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Early postlarval fish in the hyperbenthos of the Dutch Delta (south-west Netherlands) OMA
Beyst, B.; Mees, J.; Cattrijsse, A..
Early (post)larval fish constitute a significant part of the temporary hyperbenthos, i.e. of the fauna living in the lower reaches of the water column close to the substratum. Information on the densities and spatial and temporal variations of these stages, as well as on their lengths at the moment of occurrence, can be an important contribution to the knowledge of their dispersion, migrations and to the identification of possible bottlenecks in their recruitment. Therefore the hyperbenthos of the Voordelta, a shallow coastal zone in front of the Dutch Delta, as well as that of the subtidal channels and the intertidal brackish marsh creeks of the Westerschelde Estuary, was sampled monthly during one year by means of a sledge and a stow net. A total of 37...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Community composition; Deltas; Dominant species; Ecological distribution; Estuaries; Intertidal environment; Juveniles; Marine fish; Nursery grounds; Pleuronectes; Population density; Salt marshes; Sprattus sprattus; Wetlands; Zoobenthos; Clupea harengus; Dicentrarchus labrax [Bass]; Solea solea [Sole].
Ano: 1999 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3979
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Ecología trófica de la caballa del Mar Argentino (Scombridae, Scomber japonicus marplatensis). Parte I. Alimentación y crecimiento OceanDocs
Angelescu, V.A..
The present study describes the morphology of the digestive system, the feeding and feeding behaviour, and the trophic relationships of the mackerel in the coastal waters regions, pelagic zone, along the Province of Buenol Aires. At the same time, this study is completed with a bioestatistical analysis on growth rhythm of body length and body weight of secondary juveniles, pre-adults and adults. All the biological information and statistical data correspond, only to the period november-march and the summer trophic habitat area.
Tipo: Journal Contribution Palavras-chave: Trophic relationships; Ecological distribution; Digestive system; Feeding; Growth curves; Condition factor; Mackerel fisheries; Feeding; Digestive system; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_2275.
Ano: 1979 URL: http://hdl.handle.net/1834/2058
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Ecological distribution of the shrimp camarao serrinha Artemesia longinaris (Decapoda, Penaeidae) in Fortaleza bay, Ubatuba, Brazil, in relation to abiotic factors OceanDocs
Fransozo, A.; Costa, R.C.; Castilho, A.L.; Mantelatto, F.L..
The spatial and temporal distribution of the shrimp Artemesia longinaris in Fortaleza Bay, northern coast of Sao Paulo State, Brazil, in relation to abiotic factors, was studied. Shrimp samples were obtained on a monthly basis from November 1988 through October 1989 at seven pre-delimited transects on board of a fishing vessel supplied with double otter trawl nets. Depth was recorded at the midpoint of each transect; water and sediment samples were taken to measure salinity, temperature, texture and organic matter content of sediment. The shrimps obtained in the trawls were sorted, identified and 100 g subsample at each transect was separated for measurements (carapace length). A total of 3,083 individuals were obtained. Shrimps were more abundant from...
Tipo: Journal Contribution Palavras-chave: Abiotic factors; Ecological distribution; Shrimp fisheries; Fishery surveys; Abundance.
Ano: 2004 URL: http://hdl.handle.net/1834/1537
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Esquema biogeográfico del Mar Argentino OceanDocs
Balech, E.; Ehrlich, M.D..
The fauna of the Argentine (SW Atlantic Ocean) shelf allows to distinguish two biogeographic provinces: the Argentine and the Magellanic that are part of the Subtropical and Subantarctic Regions. The former extends from 30° S-32° S to 41° S-44° S and from the coast to the 82-95 m isobath, between 35° S-39° S, to 70 m depth in the north Patagonia. The latter extends from the Valdés Peninsula to the southern extreme and from 43° S northward, east area of the Argentine Province. The different physiographic characteristics allow to distinguish movable sandy bottoms in the Argentine Province and in the Magellanic gravel bottoms where large algae grow. The climatic differences explain the prevalence of northern winds in the first, where warm and temperate-cold...
Tipo: Journal Contribution Palavras-chave: Biogeography; Faunal provinces; Biota; Ecological distribution; Historical account; Biota; Biogeography; Http://aims.fao.org/aos/agrovoc/c_930; Http://aims.fao.org/aos/agrovoc/c_915.
Ano: 2008 URL: http://hdl.handle.net/1834/3145
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Etude de certains paramètres éco-biologiques chez deux espèces de praires (Venus verrucosa et Venus rosalina) OceanDocs
Diop, M..
Tipo: Journal Contribution Palavras-chave: Ecological distribution; Species diversity; Fisheries biology.
Ano: 1987 URL: http://hdl.handle.net/1834/4685
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Etude de la dynamique des systèmes d’exploitations et de l’éco biologie de la reproduction, de trois Mugilidés : <Mugil cephalus> (Linnaeus, 1758),< Liza aurata> (Perugia, 1892) et< Mugil capurrii> (Risso, 1810), analyse de leurs stratégies d’occupations des secteurs littoraux mauritaniens et de leurs possibilités d’aménagement. OceanDocs
Ould Mohamed Vall, M..
Résumé : En Mauritanie, un constat clair met en évidence une tendance de sur-exploitation « en série» des stocks à haute valeur, des Mugilidés; le mulet jaune premièrement, puis ensuite le mulet noir et le mulet doré (espèces pouvant être considérées de substitution). L’exploitation intensive du mulet jaune à partir de 1996 a conduit au ciblage du mulet noir à partir de 1998 et puis, plus récemment encore, celui du mulet doré en 2001. L’absence d’une gestion rationnelle risque de conduire, dans moins de sept ans à la quasi-disparition de ces ressources (logiquement renouvelables). C’est dans ce contexte de baisses des rendements, auquel s’ajoute la dégradation des zones littorales par l’action anthropique sans cesse croissante, que ce travail a permis...
Tipo: Theses and Dissertations Palavras-chave: Biology; Distribution; Ecological distribution; Exploitation; Abundance; Legislation; Reproduction; Stock identification; Zonal distribution; Distribution; Biology; Legislation; Reproduction.
Ano: 2004 URL: http://hdl.handle.net/1834/1226
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Método de análisis rápido en muestras planctónicas OceanDocs
Frontier, S..
Con los diseños de "primera descripción", se trata de estudiar en una región las variaciones de la comunidad planctónica según el tiempo, el espacio, o los dos a la vez. Se estuadiará por ejemplo las variaciones a la escala geográfica, según los principales gradientes ecológicos; norte -sur, costa-alta mar, vertical, etc. Se establecerá transectos a través de los fenómenos, las estaciones siendo más o menos apretadas según la intensidad del gradiente. Si se presume la existencia de varios gradientes ecológicos entrecruzándose, se realizará un cuadriculado de estaciones. Se estudiará por otra parte variaciones verticales, estacionales e interanuales, nictemerales, etc.
Tipo: Journal Contribution Palavras-chave: Ecological distribution; Plankton surveys; Sampling; Sampling; Http://aims.fao.org/aos/agrovoc/c_6774.
Ano: 1980 URL: http://hdl.handle.net/1834/2119
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The new record of "Morchellium argus and aplidium" aff. nordmanni in tunisia (mediterranean): comparison with the native species aplidium conicum OceanDocs
Chabbi, N.; Mastrottotaro, F.; Missaoui, H..
Three species of the Polyclinidae family from the Mediterranean are described: Morchellium argus, Aplidium aff. nordmanni and Aplidium conicum. The two first, are from the Western Atlantic Ocean, which principally differs from the native species A. conicum in the number of the rows of stigmata and the shape of stomach. The spatial and temporal distributions of the three species are described in this paper.
Tipo: Journal Contribution Palavras-chave: Distribution records; Ecological distribution; Geographical distribution; New records; Temporal distribution; Ecological distribution.
Ano: 2009 URL: http://hdl.handle.net/1834/4498
Registros recuperados: 11
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