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| Registros recuperados: 10 | |
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| Gaudy, R.; Guerin, J.p.. |
| Following are results obtained in our laboratory during breeding experiments with an harpacticoid copepod, Tisbe holothuriae. In small size volumes (200 ml), the potential production appears to be higher when an artificial compound food of animal substances is used instead of a vegetal diet. In medium volume experiments (100 l) the production is related to the surface available for animals in breeding tanks, Breeding in complete cycles can be obtained using various foods, but the quality of diet may markedly affect the characteristics of the vital cycle, such as the length of the fertility period and fecundity. Temperature has a crucial effect, chiefly on dynamic preoccesses, that is to say, developmental rate and average generation time. With different... |
| Tipo: Text |
Palavras-chave: Production; Dynamique des populations; Biomasse; Composition chimique élémentaire; Bilan énergétique; Copépodes harparcticoïdes; Production; Population dynamic; Biomass; Chemical elementary composition; Energy balance; Hapacticoïd copepods. |
| Ano: 1979 |
URL: http://archimer.ifremer.fr/doc/00306/41672/40881.pdf |
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| Rathier, I. |
| The stock of Lambi, Strombus gigas (gastropod: strombidae), coastal benthic resource, has been exploited artisanally since the prehistoric period in Martinique. Nowadays, three lines of work exploit the species: free diving, nets (since the middle of the century) and scuba diving since 1985. This report presents the activity of each line of work, surveyed directly from 1986 to 1987: fishing zones and resource allocation, production, effort and performance, detail of catches (by length). The socio economic characteristics of the lambi fishermen are studied. The significant production of leisure fishing is also estimated. The decrease in the production and performance, as well as the lowering of the size of the first catch for about thirty years show that... |
| Tipo: Text |
Palavras-chave: Management; Operating system; Aquaculture; Population dynamic; Stock evaluation; Martinique; Strombus gigas; Lambi; Aménagement; Régime d'exploitation; Forçage du recrutement; Aquaculture; Dynamique de population; Évaluation de stock; Martinique; Strombus gigas; Lambi. |
| Ano: 1993 |
URL: https://archimer.ifremer.fr/doc/1993/these-3751.PDF |
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| Quero, Jean-claude. |
| This study concerns mainly 2 species Merluccius capensis and M. paradoxus; M. polli is a more northern species though the 3 species are known to inhabit the same regions. The life cycle, seasonal migrations geographical distribution and fishing grounds of the 2 main species are discussed in detail. The intensity of fishing in this region, over the past 10 years has increased to such an extent that during 1968 -1970 this production accounted for one half level on a world-wide basis. Attempts have been made by Britain to market this fish as a frozen product. |
| Tipo: Text |
Palavras-chave: South Africa; Fishing; Population dynamic; Ecology; Biology; Gadoide; Hake. |
| Ano: 1973 |
URL: http://archimer.ifremer.fr/doc/1973/publication-2228.pdf |
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| Ferreira,Paulo Sérgio Fiuza; Pires,Evaldo Martins; Guedes,Raul Narciso Carvalho; Mendes,Márcio; Coelho,Lívia Aguiar. |
| A total of 293 specimens of Oxelytrum discicolle were sampled weekly over a period of two years using a black light trap. The study took place in an Atlantic Forest reserve located near Viçosa city, Minas Gerais State, Brazil. The period of peak abundance of O. discicolle occurred during the wet season between the months of October and March. Statistical analysis showed that the abundance of individuals was significantly and positively correlated with temperature, but not with rainfall or relative humidity. Of 28 morphological measurements taken on each collected specimen, seven were found to be sexually dimorphic; however, neither morphology nor the degree of sexual dimorphism varied significantly among seasons. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oxelytrum discicolle; Population dynamic; Sexual dimorphism; Minas Gerais. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032006000200015 |
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| Haubois, Anne-gaelle; Guarini, Jean-marc; Richard, Pierre; Blanchard, Gerard; Sauriau, Pierre-guy. |
| Spatio-temporal changes in density, breeding cycle, growth and population structure of Hydrobia ulvae (Gastropoda: Prosobranchia) were studied by monthly sampling of a wide bare mudflat in Marennes-Oleron Bay. Four stations, located along a cross-shore transect and characterized by different geomorphological structures, were investigated from March 2000 to February 2001. Hydrobia ulvae was mainly distributed in the upper half part of the mudflat and no individuals were found in the lower part. The breeding cycle extended from March to December and showed two annual peaks, in spring and in autumn. Three cohorts were recruited during the year and showed high growth rates during summer; the parameters of the von Bertalanffy model describing the growth curves... |
| Tipo: Text |
Palavras-chave: Gastropoda; Mudflat; Spatio temporal change; Population dynamic. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/publication-598.pdf |
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| Registros recuperados: 10 | |
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