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Genetic analyses on the deep-sea shrimp Acanthephyra pelacica in the North-West Atlantic.

Author: Erika Anahí Jorquera - Paegelow; Dalhousie University. Department of Biology,
Publisher: Halifax, NS : Dalhousie University, 2014. ©2014
Dissertation: M. Sc. Dalhousie University 2014
Edition/Format:   Thesis/dissertation : Document : Thesis/dissertation   Computer File : EnglishView all editions and formats
Summary:
ABSTRACT: This study examine the population structure, and mating system in Acanthephyra pelagica. Samples were obtained in different areas of the Northwest Atlantic with emphasis in the Sable Gully. Ten microsatellite loci were developed and used for this research. I evaluated generational, temporal and spatial differences. Cohorts were determined using length measurements. Cohort information provided information  Read more...
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Details

Genre/Form: Academic theses
Material Type: Document, Thesis/dissertation, Internet resource
Document Type: Book, Computer File, Internet Resource
All Authors / Contributors: Erika Anahí Jorquera - Paegelow; Dalhousie University. Department of Biology,
OCLC Number: 1015308366
Notes: Title from PDF title page (viewed Dec. 12, 2017).
Thesis supervisor: Daniel Ruzzante
Thesis supervisor: Ellen Kenchington
Description: 1 online resource (xiii, 97 leaves) : illustrations, maps
Responsibility: by Erika Anahí Jorquera Paegelow.

Abstract:

ABSTRACT: This study examine the population structure, and mating system in Acanthephyra pelagica. Samples were obtained in different areas of the Northwest Atlantic with emphasis in the Sable Gully. Ten microsatellite loci were developed and used for this research. I evaluated generational, temporal and spatial differences. Cohorts were determined using length measurements. Cohort information provided information to infer the reproductive cycle of the species. The existence of multiple paternity was also investigated. Four cohorts were found in each year of sampling showing a four years life span and seasonal spawning. The population was found to be panmictic among locations spatial at scales of less than 1500 km. Significant genetic structure and isolation by distance was found at a higher spatial scale. Multiple paternity was found to be prevalent in the population with 2-4 fathers in each brood. The lack of genetic structure in the population suggests high dispersal and connectivity.

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