Dynamic Production Model for Shrimp Stock Assessment: A case study of Northern shrimp (Pandalus borealis Kroyer, 1838) in Hunaflói, Icelandic waters - Couverture souple

Nguyen, Lam Anh; Valtysson, Hreidar

Couverture souple

ISBN 10 : 3659115649 ISBN 13 : 9783659115646

Editeur : LAP Lambert Academic Publishing, 2012

Synopsis

Shrimp is one of the most important commodities in the world markets. The northern shrimp (Pandalus borealis) fishery in the Húnaflói area developed in the late last century but collapsed in 1999 because of the increasing of cod (Gadus morhua) abundance. This study aims at estimating the shrimp biomass before the collapse and predict the equilibrium yield and spawning stock biomass if the shrimp stock recovers. Length distribution model, a dynamic production model, and a yield per recruit model were used with the input data on length and weight of shrimp, survey abundance index from a annual spring and autumn surveys and catch data from the commercial shrimp fishery. The maximum likelihood criterion and least-squared criterion were used for fitting the models. The method of this study provided an approach to estimate the biomass not only for shrimp but also for other target species of aquatic resources using models that were simulated by R software package.

A propos du livre

À propos de l?auteur

Mr. Nguyen Lam Anh is lecturer of Faculty of Aquaculture, Nha Trang University, Vietnam in the field of fish stock assessment, aquatic resources management and integrated coastal zone management. He got the MSc degree at Asian Institute of Technology in 2003 then has become a PhD candidate of Wageningen University since 2009.

Détails de l'édition

• Éditeur: LAP Lambert Academic Publishing
• Date d'édition: 2012
• Langue: anglais
• ISBN 10: 3659115649
• ISBN 13: 9783659115646
• Reliure: Broché
• Nombre de pages: 52
• Coordonnées du fabricant: non disponible
• Personne responsable: KreGa Onlinehandel GmbH; 4950000000000; info@krega-onlinehandel.de; ; Birkenweg 31; Brakel; 33034; Allemagne