Consulta: subjectFacets:"Perna perna"
Registros recuperados: 16
Data/hora: 07/06/2024 10:20:37

Biogeographical Patterns of Endolithic Infestation in an Invasive and an Indigenous Intertidal Marine Ecosystem Engineer
Provedor de dados: 5
Autores: Ndhlovu, Aldwin; Mcquaid, Christopher D.; Nicastro, Katy; Marquet, Nathalie; Gektidis, Marcos; Monaco, Cristian; Zardi, Gerardo.
By altering the phenotypic properties of their hosts, endolithic parasites can modulate the engineering processes of marine ecosystem engineers. Here, we assessed the biogeographical patterns of species assemblages, prevalence and impact of endolithic parasitism in two mussel species that act as important ecosystem engineers in the southern African intertidal habitat, Perna perna and Mytilus galloprovincialis. We conducted large-scale surveys across three biogeographic regions along the South African coast: the subtropical east coast, dominated by the indigenous mussel, P. perna, the warm temperate south coast, where this species coexists with the invasive Mediterranean mussel, M. galloprovincialis, and the cool temperate west coast dominated by M....
Tipo: Text
Palavras-chave: Biogeographical region; Mytilus galloprovincialis; Perna perna; Rocky shores; Parasite.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00605/71689/70129.pdf

Assessment of energetic requirements of reared molluscs and of their main competitors
Provedor de dados: 5
Autores: Deslous-paoli, Jean-marc.
In the context of aquaculture in open sea• the amount: and qua11ty of food is variable according to the season and the physical flux in the ecosystem (carrying capacity  ecosystems ). Thus to predict the potential al production of a cultivated ecosystem,  it is mandatory 'co know ~he seasona1 changes in organisms energy balance of cultivated organisms. These changes result from the environmental  variability either  in the temperature  or more significantly in the nutrients supply (Bayne and Newell, 1983).  The techniques of physiological energetics allow to understand the adaptations of the energy balance in bivalve molluscs and to calculate the complete energy budget all  over the seasonal variations of the field. Such studies are few, they include...
Tipo: Text
Palavras-chave: Crepidula fornicata; Perna perna; Mytilus chilensis; Mytilus edulis; Mercenaria mercenaria; Crassostrea gigas; Scrobicularia plana; Physilogy; Energy balance; Carrying capacity ecosystems.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/acte-2960.pdf

Cinétique et production de deux moulières naturelles de l'Est algérois. Influence des facteurs thermiques et anthropiques
Provedor de dados: 5
Autores: Abadaboudjema, Ym; Dauvin, Jean-claude.
A long-term survey of two mussel populations from two natural mussel beds, Bordj El Kiffan and Boudouaou, was carried out from the end of 1984 to the beginning of 1991. Samples had been also collected from 1978-1979 then from 1992-1993, but only from the first of these. Maximal densities were higher than 10,000 ind. m(-2), due to the spring and summer heavy spatfall. At Bordj El Kiffan, densities of M. galloprovincialis were 50 times more important than those of P. perna. At Boudouaou, the abundance of P. perna was 1.7 times higher than that of M. galloprovincialis. From 1986 to 1988, the mean annual biomass in dry weight of tissue including ash was higher for P. perna at Boudouaou (0.886 kg. m(-2)) than at Bordj El Kiffan (0.486 kg. m(-2)). For M....
Tipo: Text
Palavras-chave: Mytilus galloprovincialis; Perna perna; Long term; Production; Algerian coast.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00093/20393/18060.pdf

Hydrocarbon pollution along Moroccan coasts and BPH activity in the mussel Perna perna
Provedor de dados: 5
Autores: Azdi, M.; Moukrim, A.; Burgeot, Thierry; Budzinski, H.; Chiffoleau, Jean-francois; Kaaya, A.; Zekhnini, A.; Narbonne, J. F.; Guarrigues, Ph.
Specimens of the mussel Perna perna were collected along Moroccan coasts to determine the concentrations of polycyclic aromatic hydrocarbons ( PAHs) bioaccumulated in the tissues, and to measure benzo[ a] pyrene hydroxylase (BPH) activity. Chemical analysis of PAHs show that the Mediterranean (Nador, Martil, Tanger) and central Atlantic coasts ( from Rabat to Jorf Lihoudi) are those most contaminated ( 351 245 ng.g(-1) dry weight in Tanger). The mussel contaminants were of mixed origin for most of the locations with non negligible inputs of petrogenic origin in many of them. Baseline levels of PAHs were between 6 and 55 ng.g(-1) dry weight. BPH activity showed significant correlation (r(s) = 0.64, P &lt; 0.05) with total PAH concentrations at the six most...
Tipo: Text
Palavras-chave: Mussel; Perna perna; Moroccan coasts; Polycyclic aromatic hydrocarbons; Benzoapyrene hydroxylase; Baseline level.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/00000/10995/12929.pdf

Metal trace elements in mussels in Urubuqueçaba Island, Santos Bay, Brazil
Provedor de dados: 86
Autores: Campolim,Marcos Bührer; Henriques,Marcelo Barbosa; Petesse,Maria Letizia; Rezende,Karina Fernandes Oliveira; Barbieri,Edison.
Abstract: The objective of this work was to verify the existence of bioaccumulation in mussels of the species Perna perna, by determining the concentration of metal trace elements, in Urubuqueçaba Island, Santos Bay, Santos, SP, Brazil. Mussels were collected in natural banks and rocky shores, and sampling took place from April 2010 to June 2011. The concentration of the trace metal elements - aluminum, cadmium, cromium, copper, iron, manganese, nickel, lead, and zinc - was determined according to mussel sex, length, and seasonality classes, in a flame atomic absorption spectrometer. Statistical analyses were applied to the results with the use of the software PAST, with parametric and nonparametric approaches, at 5% probability. In the summer, mussels...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Perna perna; Bivalve mollusks; Bioaccumulation; Seasonality.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001201131

Anatomia funcional de Perna perna (Linné) (bivalvia, Mytilidae)
Provedor de dados: 104
Autores: Narchi,Walter; Galvão-Bueno,Mario Sérgio.
Perna perna (Linné, 1758) occurs on the Atlantic littoral from Venezuela to Uruguay. The main organ systems were studied in the living animais, particular attention being paid to the ciliary feeding and cleansing mechanisms in the mantle cavity. The anatomy, functioning of the stomach and the ciliary sorting mechanisms are described. The siphons belong to type A (Yongf. 1948b), the ctenidia to type B( 1) (Atkins 1936c) and the stomach is of type III (Purchon 1957) or Section I (Dinamani 1967) with sorting mecanisms of type A and B (Reid 1965). A general comparison was made between the genera of the Mytilidae known and some features of Mytella Soot-Ryen, 1955.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bivalvia; Mytilidae; Perna perna; Functional anatomy; Brazilian littoral.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000100014

Ciclo reprodutivo do mexilhão Perna perna (Linnaeus) (Molusca, Bivalvia) da Lagoa de Itaipu, Niterói, Rio de Janeiro, Brasil
Provedor de dados: 104
Autores: Mesquita,Eliana de Fátima Marques de; Abreu,Marta Guimarães de; Lima,Francisco Carlos de.
The gametogenic aspects of mussel Perna perna (Linnaeus, 1758) from Itaipu Lagoon, Niterói, were studied through November 1998 to October 1999. Microscopic analysis was carried out at low and high dry magnifications, as well as under oil immersion. The animals collected showed variation of size from 4.8 to 9.1 cm in total length and from 2.0 to 3.9 cm in total width. Most advanced gonadal stage was detected through May, August and October of 1999 for female specimens. Male advanced gonadal stage occurred in September of the same year. The sex-ratio (M:F) for P. perna was 64:52.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Perna perna; Gonadal cycle; Special-staining methods; Itaipu Lagoon; Rio de Janeiro.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000200029

The life cycle of Bucephalus margaritae Ozaki &amp; Ishibashi, 1934 (Digenea, Bucephalidae) from the coast of Santa Catarina State, Brazil - DOI: 10.4025/actascibiolsci.v32i1.5596
Provedor de dados: 3
Autores: Marchiori, Natalia da Costa; UFSC; Magalhães, Aimê Rachel Magenta; UFSC; Pereira Junior, Joaber; GURG.
The orange disease is considered the main parasitosis in Perna perna mussel. It is caused by a complex life cycle bucephalid, involving three hosts, among them mollusks and fishes. With the aim of contributing to the knowledge of orange disease in mussel culture, the parasite life cycle was investigated. Experimental studies and monthly samples in the study area allowed the identification and characterization of the Bucephalus margaritae life cycle. Larvae and adults of B. margaritae were fixed in 5% formaldehyde, stained with Gomori’s trichrome, clarified in creosote and mounted in Canada balsam. The cercariae are found in the first intermediate host P. perna inside the sporocysts, which have the form of orange and ramified filaments. The metacercariae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bucephalus margaritae; Hypleurochilus fissicornis; Life cycle; Orange disease; Perna perna 2.13.00.00-3 Bucephalus margaritae; Hypleurochilus fissicornis; Life cycle; Orange disease; Perna perna.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5596

Monitoramento histopatológico de mexilhão Perna perna da Lagoa de Itaipu, Niterói, RJ
Provedor de dados: 45
Autores: Lima,F.C.; Abreu,M.G.; Mesquita,E.F.M.
Cortes histológicos de 120 mexilhões Perna perna (Linnaeus, 1758), coletados na Lagoa de Itaipu, Niterói, RJ, por um período de 12 meses, foram examinados quanto a presença de parasitas e lesões. Noventa exemplares apresentaram cinco diferentes processos patológicos: bucefalose, presença de protozoários Nematopsis sp., inclusões basofílicas não específicas, encapsulamentos parasitários e cistos epiteliais branquiais. Cinquenta animais mostravam duas ou mais patologias concomitantes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mexilhão; Perna perna; Bivalve; Parasita; Histopatologia.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352001000200013

Physiological and cellular responses in two populations of the mussel Perna perna collected at different sites from the coast of São Paulo, Brazil
Provedor de dados: 52
Autores: Abessa,Denis Moledo de Souza; Zaroni,Letícia Pires; Sousa,Eduinetty Ceci Pereira Moreira de; Gasparro,Marcia Regina; Pereira,Camilo Dias Seabra; Rachid,Bauer Rodarte de Figueredo; Depledge,Michael; King,Rebecca Susan.
The physiological conditions of mussels from Ubatuba and Santos and also of organisms transplanted from Ubatuba to Santos were studied by using different techniques. Assays for lysosomal stability were conducted on the haemolymph. Heart rate activity was monitored for 6h. The embryonic development of larvae obtained from the collected mussels was analysed. For all the compared groups of mussels, no significant differences were observed for the cardiac activity monitoring and the embryonic bioassays. The mean Neutral Red (NR) retention time was similar for the animals from Santos and Ubatuba, whereas the organisms transplanted to Santos showed a reduction in the retention time of the dye, indicating damage in the lysosomal membranes. These differences were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Perna perna; Neutral red retention assay; Capmon system; Embryonic assay; Biomarkers; Physiology.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000200008

Epibiosis Reduction on Productivity in a Mussel Culture of Perna perna (Linné, 1758)
Provedor de dados: 52
Autores: Metri,Rafael; Rocha,Rosana Moreira da; Marenzi,Adriano.
Cultivated mussels (Perna perna) were studied to test for the effects of cleaning on their growth. These effects were examined by experimentally cleaning mussels and by changing mussel density. Treatment was performed twice, at two and four months after immerging the ropes. Two months after the first treatment and three months after the second treatment, mussels were harvested and measured (weight, length, width and thickness). Analysis of variance showed that none of the treatments resulted in increased growth of the mussels, nor did increased density result in decreased growth when compared with the control. It was concluded that it was not necessary to clean the shells to increase harvest.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mussels culture; Perna perna; Epibiosis; Cleaning management.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000300011

The influence of techniques of larvae rearing and seed collectors on the survival rate and recovery efficiency of the brown mussel Perna perna (L.) in laboratory
Provedor de dados: 52
Autores: Beduschi,Pedro; Melo,Cláudio Manoel Rodrigues de; Ferreira,Jaime Fernando.
Te study compared the hatchery recovery efficiency and survival rate of Perna perna spats using larvae submitted to four conditions, prior to settlement, tested with for different collectors. In 15 days old larvae (eyed larvae, T1), transparent nylon thread collectors presented the best results for spats recovered per meter of collector. The 28 days old larvae (foot larvae) stored under refrigeration before settlement (T3 with water and T4 without water) showed no significant differences between the spat number in all the collectors. The brown multi-thread collector was more efficient in T 4. The blue polyamide thread collector was the most efficient with 28 days old larvae settled directly, without refrigeration (T2). Treatment 1 showed the highest spats...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spats; Settlement; Perna perna; Collectors; Hatchery.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100019

The effect of temperature and salinity on the physiological rates of the mussel Perna perna (Linnaeus 1758)
Provedor de dados: 52
Autores: Resgalla Jr.,Charrid; Brasil,Elisângela de Souza; Salomão,Luis Carlos.
The aim of this work was to study the rates of respiration, clearance, excretion and absorption efficiency at different temperature and salinity under laboratory conditions for Perna perna. Results showed variations in physiological rates and in acclimatization capacity which, taken together, enabled to understand its behavior in the environment, as well as to estimate its scope for growth. All experiments were carried out in static conditions, in ten replicas with one mussel by flasks. Perna perna was capable of achieving acclimatization for both clearance and absorption efficiency (15 to 30 ºC), but it achieved only partial acclimatization for respiration and excretion under chronic temperature conditions. The clearance and respiration rates increased...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mussel; Perna perna; Physiological rates; Temperature; Salinity; Net growth efficiency.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000300019

Composition and seasonal variation of brachyura and anomura (Crustacea, Decapoda) associated with brown mussel farms at Praia da Cocanha, Brazil
Provedor de dados: 52
Autores: Bernadochi,Ligia Coletti; Silvestri,Fausto; Turra,Alexander.
The composition and seasonal variation of brachyuran and anomuran species associated with mussel farms were evaluated at Praia da Cocanha, São Paulo between May 2007 and February 2008. Nine mussel ropes were sampled at random in each quarter, and 1,208 organisms were identified, comprising five families and 28 species. The most numerous species was the porcellanid Pachycheles laevidactylus (18.5%), followed by the xanthids Acantholobulus schmitti (16.6%), Hexapanopeus paulensis (11.3%), Panopeus americanus (10.2%), and Menippe nodifrons (8.4%). The exotic crab Charybdis hellerii was recorded throughout the study period. The ecological descriptors, except Pielou evenness index, varied significantly over the time. The highest abundance and diversity of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Associated fauna; Mussel culture; Perna perna; Crustaceans; Community ecology.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000400010

Effects of aerial exposure on antioxidant defenses in the brown mussel Perna perna
Provedor de dados: 52
Autores: Almeida,Eduardo Alves de; Bainy,Afonso Celso Dias.
Investigations were carried out to evaluate the antioxidant defenses in digestive gland of mussels Perna perna held in air for 4 hours, exposed to air for 4 hours followed by submersion in water for 30 minutes, and constantly submerged for 4.5 hours. No differences were observed in CAT and GPx activities and in the levels of total GSH. Mussels exposed to air had significantly higher SOD activity, possibly related to a preparative mechanism of defense against oxidative stress during reoxygenation.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Hypoxia; Mussel; Perna perna; Aerial exposure.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000300007

Maintenance of filtering molluscs in aquaria for sub-chronic studies
Provedor de dados: 52
Autores: Andréa,Mara Mercedes de; Tomás,Acácio Ribeiro Gomes; Barreto,Oscar José Sallée; Vampré,Thais Mitre; Luchini,Luiz Carlos.
This work determined the best survival conditions for the clam Mytella guyanensis and the mussel Perna perna in the estuary and sea aquaria respectively over at least 12 days, which could enable their use in the ecotoxicological studies. The aquaria were set up with the appropriate water and sedimen, and allowed to establish for a minimum of one month before adding the organisms. The best survival conditions for M. guyanensis required more time for the aquarium stabilization, addition of inocula and more frequent water changes than for P. perna. The organisms' lipid contents increased and their condition index was maintained indicating the good conditions of the aquaria, hence, their possible use in the sub-chronic studies.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Condition index; Lipid content; Mytella guyanensis; Perna perna.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100010