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| Registros recuperados: 28 | |
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| Le Foll, Anne. |
| The study of the crab Cancer pagurus , along the Brittany coast, has revealed new information about its movements, growth and reproduction. The 1439 crab tagging has been effected either on land using the Edwards technique "suture-tag" or onboard using a similar technique to the Gundersen method of "toggle-tag". The results confirm that males are relatively sedentary, the females migrate more. To estimate growth, the author used the "capture-recapture" method and the results from crab rearing. It appeared that the molt increment is not constant and generally, so the molt frequency, it percentage decreases when the size increases. |
| Tipo: Text |
Palavras-chave: Marine crustaceans; Sexual reproduction; Tagging; Growth; Migrations. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/publication-1785.pdf |
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| Angelescu, V.A.; Anganuzzi, A.. |
| The paper was developed in order to arrange the data gathered on this subject and to generate new hypotheses in connection with the trophic strategy of the northern stock of anchovy in the area between latitudes 35°-42°S. Such estimates were finally compared with the values of the gravimetric determinations of stomach contents- as converted to caloric values - of individuals grouped by total-length amd age classes, ecological areas, and seasons of the year. The set of results as obtained conforms the initial basis for developing Part IV of the Trophic Ecology of the Argentine anchovy as related to food consumption estimates, by stock biomass and annual classes, with back-calculations to age class 0, and for applying "regional patterns" that result from the... |
| Tipo: Journal Contribution |
Palavras-chave: Growth curves; Bioenergetics; Migrations; Length-weight relationships; Condition factor. |
| Ano: 1986 |
URL: http://hdl.handle.net/1834/2022 |
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| Chaboud, C.; Kébé, M.; Diop, H.; Lawal, H.S.. |
| Le Centre National de Recherches Oceanographiques et des Pêches de Nouadhibou (CNROP) entreprend chaque semestre un recensement exhaustif des unités de pêche artisanale opérant sur le littoral mauritanien. En juillet 1987 une enquête socio- 6conomique a été effectuée. Les informations recueillies portent sur les pirogues en état de prendre la mer, les migrations de pêcheurs, l'emploi et l'activité au cours des trois derniers mois,le capital technique, les équipages et l'organisation sociogconomique des unités de pêche. La pêche artisanale mauritanienne compte actuellement 735 embarcations réparties sur 22 points de débarquement. Elle génère 3302 emplois directs. |
| Tipo: Journal Contribution |
Palavras-chave: Artisanal fishing; Migrations. |
| Ano: 1988 |
URL: http://hdl.handle.net/1834/4672 |
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| Hirt Chabbert, J.A.. |
| Los pejerreyes son peces muy apreciados por el hombre, debido a la exquisitez de su carne. Habitan tanto las aguas dulces y salobres como las marinas. La gran semejanza entre todos ellos y su adaptabilidad a los diversos medios, son factores que hacen muy dificil la identificación específica. La mayoría de los ictiólogos que se han ocupado hasta ahora del tema en la Argentina, no han publicado los resultados de sus investigaciones, por 10 cual se cuenta con unos pocos trabajos antiguos (Berg, 1895; Devicenzi, 1924; Lahille 1929a, 1929b y 1930; Marrero, 1950) y claves recientes elaboradas sobre los datos provenientes de esos trabajos (Menni et al., 1984). Uno de los trabajos más nuevos y completos sobre las especies de aterinidos (Familia Atherinidae) del... |
| Tipo: Theses and Dissertations |
Palavras-chave: Marine fish; Taxonomy; Animal morphology; Migrations; Geographical distribution; Taxonomy; Geographical distribution; Animal morphology; Http://aims.fao.org/aos/agrovoc/c_7631; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_421. |
| Ano: 1991 |
URL: http://hdl.handle.net/1834/2953 |
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| Bennet, D; Casey, J; Dare, P; Dawson, W; Flatman, S; Hulme, T; Macer, C; Millner, R; Pickett, G; Vince, M; Lorance, Pascal; Souplet, A; Giret, M; Morin, Jocelyne; Berthou, A; Latrouite, Daniel; Morizur, Yvon; Bossy, S; Ozanne, S. |
| At present, the majority of fisheries are monitored and regulated in areas which are delineated by arbitrary ICES boundaries which do not necessarily have logical or consistent relationships with biological processes or fish movements. The biogeographical identification of Channel stocks is, therefore, an important step towards developing a rational strategy for the management of their fisheries. This synthesis is based on the wide available knowledge which has not been yet entirely exploited with the purpose of stock identification, for 25 commercially important species in the Channel. In addition, principal technics for stock identification are reviewed likewise environmental characteristics of the Channel, which represent fundamental components in... |
| Tipo: Text |
Palavras-chave: Environnement physico chimique; Méthodes d'identification; Migrations; Zones de ponte; Distribution géographique; Espèces exploitées; Identité de stock; Manche; Physical environment; Identification methods; Migrations; Spawning areas; Geographical distribution; Exploited species; Stock identification; Channel. |
| Ano: 1993 |
URL: https://archimer.ifremer.fr/doc/1993/rapport-719.pdf |
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| Overå, R.. |
| Through their spatial mobility, African fishermen and fish traders explore and exploit new niches: primarily fishing grounds and fish markets (see Chauveau 1991). Ghanaian canoe fishermen are among the groups most famous for such activity. In the twentieth century, they migrated extensively in coastal West Africa, reaching as far as Mauritania to the north and Congo to the south in order to fish in areas where the local fishermen have under-exploited their fishing grounds, and markets are unsaturated with fish (Delauney 1991; Boujou 2000). These migrants’ contributions in their host countries in terms of technological innovation in the fisheries, in terms of new knowledge and institutions, and not the least in terms of food supply, are increasingly being... |
| Tipo: Conference Material |
Palavras-chave: Migrations; Artisanal fishing. |
| Ano: 2001 |
URL: http://hdl.handle.net/1834/655 |
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| Grellier, Patrick. |
| Vertebrate Cyclostome, the european sea lamprey is a sea spawning migrator amphihaline species, which is a parasite during its growing phase at sea. After the spawning migration, lampreys couple in the upper reach of water courses, they lay their eggs, then die from physiological misery. The eggs develop sheltered into a nest until hatching of small larvae, the ammocoetes. Morphologically very different from the adults, the ammocoetes spend a several years sedentary life, being burried into the sediment. Then, they metamorphose into young lampreys which undertake their downstream migration. As soon as they enter sea water, they continue growing at the expense of several species of fishes. |
| Tipo: Text |
Palavras-chave: Morphologie; Cycle Biologique; Migrations; Reproduction. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00085/19616/17256.pdf |
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| Parolin,M.L; Zanetti,D; Calò,C.M; Esteban,E; Avena,S; Carnese,F.R; Moral,P. |
| This study aimed to analyze autosomal Alu insertions in three localities from Patagonia Argentina belonging to the Andes region and the coast of the Chubut province. Knowledge of the genetic diversity of these populations, along with the genealogical data, will contribute to better understand historical information, differential migration process and bio-demographic composition of the Central Patagonia region. In order to achieve this objective, 16 autosomal Alu insertion polymorphisms were genotyped: ACE, APO-A1, TPA25, FXIIIB, A25, HS4.32, D1, HS4.69, HS2.43, Sb19.12, Yb8NBC120, Sb19.3, Yb8NBC125, Ya5NBC221, DM, and CD4. Our results showed that the Central Patagonia region presents a complex continental genetic admixture with marked Native American roots... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alu insertion polymorphisms; Argentina Central Patagonia; Admixture; Migrations. |
| Ano: 2017 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332017000300004 |
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| Tareau, M.-a.; Bonnefond, A.; Palisse, M.; Odonne, G.. |
| Background French Guiana is characterized by a very multicultural population, made up of formerly settled groups (Amerindians, Maroons, Creoles) and more recent migrants (mostly from Latin America and the Caribbean). It is the ideal place to try to understand the influence of intercultural exchanges on the composition of medicinal floras and the evolution of phytotherapies under the effect of cross-culturalism. Methods A combination of qualitative and quantitative methods was used. Semi-directive interviews were conducted in 12 localities of French Guiana’s coast between January 2016 and June 2017, and the responses to all closed questions collected during the survey were computerized in an Excel spreadsheet to facilitate quantitative processing. Herbarium... |
| Tipo: Text |
Palavras-chave: Cultural keystone species; Indicator species; Exchange networks; Migrations. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00652/76384/77395.pdf |
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| Registros recuperados: 28 | |
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