Consulta: creatorFacets:"Lasta, M.L."
Registros recuperados: 10
Data/hora: 11/06/2024 08:45:38

Pesquerías de bivalvos: mejillón, vieiras (tehuelche y patagónica) y otras especies
Provedor de dados: 20
Autores: Ciocco, N.F.; Lasta, M.L.; Bremec, C.
Fisheries of the mussel Mytilus edulis platensis, the tehuelche scallop Aequipecten tehuelchus and Patagonian scallop Zygochlamys patagonica are described. Information about catches of purple clam Amiantis purpurata in San Matias Gulf, mussel Aulacomya ater ater and hard shell clam Ameghinomya antiqua in San José Gulf is also presented. Regarding mytilus fishery, it is observed that the main catches were situated in Faro Querandí and Quequén beds (Buenos Aires Province, Argentina), where high densities occured in an area between 35 and 60 m depths. Those beds were exploited until the production was no more commercially interesting. The tehuelche scallop is a very well known resource from the Argentine Sea and its fisheries from San Matías and San José...
Tipo: Book Section
Palavras-chave: Mussel fisheries; Scallop fisheries; Clam fisheries; Fishery surveys; Catch/effort; Fishing grounds; Fishing grounds; Http://aims.fao.org/aos/agrovoc/c_2947.
Ano: 1998
URL: http://hdl.handle.net/1834/2579

Vieira patagonica (Zygochlamys patagonica King &amp; Broderip, 1832): una nueva pesquería en la plataforma continental argentina.
Provedor de dados: 20
Autores: Lasta, M.L.; Bremec, C.
Patagonian scallop (Zygochlamys patagonica King Broderip, 1832): A new fishery in the Argentine continental shelf. We present preliminary information on a new fishery of patagonian scallop (Zygochlamys patagonica King Broderip, 1832) in the Argentine Continental Shelf. A research program was conducted jointly by INIDEP and a fishing company during 1995 with the F/V Erin Bruce. The vessel, fishing equipment and processing on board are described. A total of 7235 fishing tows were performed during 246 days at sea. Seven new beds were located between 38º 50' S and 42º 30' S, along the 100-m isobath. Beds are discrete. Differences in the size structure by bed suggest that recruitment consists of sporadic pulses. Proportion of scallops and invertebrate by-catch...
Tipo: Journal Contribution
Palavras-chave: Scallop fisheries; Commercial fishing; Catch/effort; Fishing grounds; Size distribution; Potential resources; Fishing grounds; Http://aims.fao.org/aos/agrovoc/c_2947.
Ano: 1999
URL: http://hdl.handle.net/1834/1872

Consideraciones sobre la explotación del mejillón (Mytilus platensis)en la costa bonaerense. Resultados de la campaña de prospección del "Banco Faro Querandí" (junio 1981)
Provedor de dados: 20
Autores: Lasta, M.L.; Parma, A.M.; Pascual, M.S.; Zampatti, E.A.
The fishing of the mussel (Mytilus edulis platensis)off the Buenos Aires coast was alternatively carried out over two main grounds: "Faro Querandí" and "Quequén". The fluctuations of fishing periods on these grounds must have been determined by economic considerations. An abandoned bed may be considere, for practical purposes, depleted.The understanding of the dynamics of this spatially distributed stock could enable us to link more closely the biological cycles with those of the fishing activity. Rotative fishing is suggested as a managment strategy for this fishery.
Tipo: Journal Contribution
Palavras-chave: Mussel fisheries; Stock assessment; Fishing grounds; Stock assessment; Fishing grounds; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_2947.
Ano: 1986
URL: http://hdl.handle.net/1834/2030

Caracoles marinos de interés pesquero. Moluscos gasterópodos volútidos.
Provedor de dados: 20
Autores: Lasta, M.L.; Roux, A.; Bremec, C.
The main morphologic characteristics, the ecology and fishing interest of the volutid gastropod species of the Argentine Sea are described. The species considered are Adelomelon brasiliana, Adelomelon ancilla, Adelomelon beckii, Odontocymbiola magellanica and Zidona dufresnei.
Tipo: Journal Contribution
Palavras-chave: Marine molluscs; Organism morphology; Geographical distribution; Gastropod fisheries; Landing statistics; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_5083.
Ano: 2000
URL: http://hdl.handle.net/1834/2534

Moluscos bivalvos y gasteropodos
Provedor de dados: 20
Autores: Lasta, M.L.; Ciocco, N.F.; Bremec, C.; Roux, A.
The main life history characteristics, ecology and fishing interest of bivalve and gastropod species from the Argentine Sea are described. Exploited bivalve species are: mussel Mytilus edulis platensis, cholga Aulacomya ater, tehuelche scallop Aequipecten tehuelchus, Patagonian scallop Zygochlamys patagonica. Bivalve species irregularly exploited are: yellow clam Mesodesma mactroides, purple clam Amiantis purpurata, hard shell clam Ameghinomya antiqua and wedge shell Donax hanleyanus. It is also presented information on species of potential interest: clams Eurhomalea exhalbida and Pitar rostratus, half naked pen shell Atrina seminuda, 'geoduck' Panopea abbreviata, razor shells Solen tehuelchus, Ensis macha, Tagelus plebeius, and flat oyster Ostrea...
Tipo: Book Section
Palavras-chave: Marine molluscs; Potential resources; Life history; Ecology; Geographical distribution; Literature reviews; Life history; Ecology; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_12170; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_5083.
Ano: 1998
URL: http://hdl.handle.net/1834/2582

Mapeo sinóptico del macrobentos asociados a la dieta en fondos de alimentación de la corvina rubia Micropogonias furnieri en el área de El Rincón, Noviembre, 1994
Provedor de dados: 20
Autores: Bremec, C.; Lasta, M.L.
The faunistic characteristics in feeding grounds of Micropogonias furnieri, considering many relationships with the diet of the species in the Argentine-Uruguayan Common Fishing Zone, are studied. Benthos was collected in 33 sampling stations during the reseach cruise H-13/94, between 9-44 meters depth in the area El Rincón (Buenos Aires Prov., Argentina), with hard bottom and Picard dredges. Cluster analysis (Q mode, Sorensen index) was applied to these data and to the invertebrate by-catch obtained in 58 demersal hauls. Frequency size distribution of mussels in its distribution area is also presented. Stomach contents of 177 specimens of white croaker were studied from the percentage of ocurrence frequence of every alimentary item. Present results and...
Tipo: Journal Contribution
Palavras-chave: Zoobenthos; Nursery grounds; Stomach content; Zoobenthos; Nursery grounds; Http://aims.fao.org/aos/agrovoc/c_15487; Http://aims.fao.org/aos/agrovoc/c_25438.
Ano: 1998
URL: http://hdl.handle.net/1834/2476

Guía técnica para la identificación de invertebrados epibentónicos asociados a los bancos de vieira patagónica (Zygochlamys patagonica)en el Mar Argentino
Provedor de dados: 20
Autores: Bremec, C.; Marecos, A.; Schejter, L.; Lasta, M.L.
Technical guide to identify epibenthic invertebrates associated to Patagonian scallop (Zygochlamys patagonica)beds in the Argentine Sea, SW Atlantic. A catalogue of the invertebrate species that conform the by-catch of the Patagonian scallop fishery is presented and a descriptive technical note with basic information on the organisms considered is included.
Tipo: Book
Palavras-chave: Marine invertebrates; Zoobenthos; Taxonomy; Vernacular names; By catch; Check lists; Scallop fisheries; Taxonomy; Zoobenthos; Http://aims.fao.org/aos/agrovoc/c_7631; Http://aims.fao.org/aos/agrovoc/c_15487.
Ano: 2003
URL: http://hdl.handle.net/1834/2478

Analisis de la captura incidental asociada a la pesqueria de vieira patagónica Zygochlamys patagonica
Provedor de dados: 20
Autores: Bremec, C.; Lasta, M.L.; Lucifora, L.O.; Valero, J.
The faunistic composition of invertebrate by-catch associated with the Patagonian scallop Zygochlamys patagonica fishery before its development were studied. Analyzed material was sampled from catches performed in different beds with the F/V Erin Bruce during 1995, all of them in undisturbed areas, in the Argentine continental shelf. Macrofaunal species were identified, weighted and percentages of presence estimated. By-catch invertebrate species were determined for every bed, mainly invertebrates without present commercial value. This baseline information is considered a useful tool to detect structural changes in the benthic communities in relation to the conservation of possible substrates of recruitment of this resource and to estimate the evolution of...
Tipo: Journal Contribution
Palavras-chave: Scallop fisheries; Benthos; Fishing grounds; Benthos; Fishing grounds; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_2947.
Ano: 1998
URL: http://hdl.handle.net/1834/2468

Gonocorismo en la vieira patagonica Zygochlamys patagonica (King y Broderip, 1832) en el Banco Reclutas, Argentina
Provedor de dados: 20
Autores: Campodónico, S.; Macchi, G.J.; Lasta, M.L.
Different cases of hermaphroditism in Zygochlamys patagonica were described through histological analysis. Samples were collected in Reclutas Bed. Argentine Sea, SW Atlantic. The hermaphroditism incidence was 0.14. . Thus, the protandric hermaphroditism hypothesis previously suggested by some autors was discarded.
Tipo: Journal Contribution
Palavras-chave: Gonads; Histology; Hermaphroditism; Protandry; Hermaphroditism; Gonads; Http://aims.fao.org/aos/agrovoc/c_3571; Http://aims.fao.org/aos/agrovoc/c_34291.
Ano: 2004
URL: http://hdl.handle.net/1834/1502

Uso de técnicas geoestadísticas en la estimación de la abundancia de vieira patagónica (Zygochlamys patagonica).
Provedor de dados: 20
Autores: Lasta, M.L.; Hernandez, D.R.; Bogazzi, E.; Burgos, G.; Valero, J.; Lucifora, L.O.
To evaluate absolute biomass, a research cruise was conducted on three scallop (Zygochlamys patagonica)beds (38°S-56°W, September 1998). The estimated bed surface was 1,162 nm(2). Sampling stations were regularly spaced at 5 nm intervals. A total of 118 trawls were performed with a non-selective dredge 2,5 m wide (efficiency 16-21. ). Trawls duration and speed were 10 minutes and 3 nm.h(-1)respectively. Samples were taken to estimate total and commercial (greater or equal than 55 mm total height)scallop weight and size frequency distribution. Coefficients of variation (CV)of the estimated biomass were calculated for each bed using geoestatistical techniques and a simple random sampling alternative with the same number of samples. The CVs for total scallop...
Tipo: Journal Contribution
Palavras-chave: Fishery surveys; Scallop fisheries; Biomass; Abundance; Biomass; Http://aims.fao.org/aos/agrovoc/c_926.
Ano: 2001
URL: http://hdl.handle.net/1834/1870