12 Pages
English

Genetic markers as management tools for exploited fishes: From population differentiation to species separation

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Niveau: Supérieur, Doctorat, Bac+8
MINISTERE DE LA JEUNESSE, DE L'EDUCATION NATIONALE ET DE LA RECHERCHE ECOLE PRATIQUE DES HAUTES ETUDES Sciences de la Vie et de la Terre THESE DE DOCTORAT Discipline: Milieux, organismes et Evolution Présentée par Ricardo Jorge da Graça Quinta Pour obtenir le grade de Docteur de l'Ecole Pratique des Hautes Etudes Titre : Genetic markers as management tools for exploited fishes: From population differentiation to species separation Soutenance prévue le : 29 mai 2006 devant le jury composé de: M. René GALZIN, Directeur de Thèse Mme Ana Maria TEIA DOS SANTOS M. Patrick BERREBI, Rapporteur M. Carlos COSTA MONTEIRO M. Philippe LENFANT M. Andrés SANJUAN, Rapporteur Abstract The scientific community has awakened for the fact that if the fishing grounds are not well studied and preserved in a few years some of them, if not most, will be depleted and the social and economical factors involved in that are enormous. So, in the last years several techniques highly specific (DNA based techniques) have arisen to help solving the problems involved in managing great quantity of individuals which are, normally, in constant movement and especially because they are not bound to country borders. In this work four of these techniques (Allozymes, RFLP, SSCP and Microsatellites) were used in four species (Merluccius merluccius (hake), Aphnopus carbo (black scabbardfish), Trachurus trachurus (horse mackerel) and Sardina pilchadurs (sardine)) which are economically very important, not only for Portugal, but for several other countries.

  • sscp analysis

  • trachurus trachurus

  • distinct populations

  • mitochondrial dna

  • dna pcr-rflp marker

  • specie using

  • merluccius

  • genetic markers


Subjects

Informations

Published by
Published 01 May 2006
Reads 23
Language English
MINISTERE DE LA JEUNESSE, DE L'EDUCATION NATIONALE ET DE LA RECHERCHE
ECOLE PRATIQUE DES HAUTES ETUDES
Sciences de la Vie et de la Terre
THESE DE DOCTORAT
Discipline: Milieux, organismes et Evolution
Présentée par
Ricardo Jorge da Graça Quinta
Pour obtenir le grade de Docteur de l'Ecole Pratique des Hautes Etudes
Titre : Genetic markers as management tools for exploited fishes: From population
differentiation to species separation
Soutenance prévue le : 29 mai 2006 devant le jury composé de:
M. René GALZIN, Directeur de Thèse
Mme Ana Maria TEIA DOS SANTOS
M. Patrick BERREBI, Rapporteur
M. Carlos COSTA MONTEIRO
M. Philippe LENFANT
M. Andrés SANJUAN, Rapporteur
Abstract
The scientific community has awakened for the fact that if the fishing grounds are not well studied and preserved in a
few years some of them, if not most, will be depleted and the social and economical factors involved in that are
enormous. So, in the last years several techniques highly specific (DNA based techniques) have arisen to help solving
the problems involved in managing great quantity of individuals which are, normally, in constant movement and
especially because they are not bound to country borders. In this work four of these techniques (Allozymes, RFLP,
SSCP and Microsatellites) were used in four species (
Merluccius merluccius
(hake
), Aphnopus carbo
(black
scabbardfish)
, Trachurus trachurus
(horse mackerel)
and
Sardina pilchadurs
(sardine
)
) which are economically very
important, not only for Portugal, but for several other countries.
The objective of this work, besides the population study of this species, was also to have a direct comparison between
the techniques.
The results obtained were very interesting because in almost all studies population subdivision was found,
the
exception was
S. pilchardus
.
EPHE
Banque de Monographies SVT
1