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An Ecosystem-Based Modeling Approach...

Mayes, Cristin.

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An Ecosystem-Based Modeling Approach Towards the Development of a Predator-Prey Growth Model for Bluefish, Striped Bass, and Menhaden.

Record Type:	Electronic resources : Monograph/item
Title/Author:	An Ecosystem-Based Modeling Approach Towards the Development of a Predator-Prey Growth Model for Bluefish, Striped Bass, and Menhaden./
Author:	Mayes, Cristin.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
Description:	95 p.
Notes:	Source: Masters Abstracts International, Volume: 82-04.
Contained By:	Masters Abstracts International82-04.
Subject:	Mathematics. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28090929
ISBN:	9798672171159

An Ecosystem-Based Modeling Approach Towards the Development of a Predator-Prey Growth Model for Bluefish, Striped Bass, and Menhaden.
Mayes, Cristin.

An Ecosystem-Based Modeling Approach Towards the Development of a Predator-Prey Growth Model for Bluefish, Striped Bass, and Menhaden. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 95 p.

Source: Masters Abstracts International, Volume: 82-04.

Thesis (M.S.)--Hampton University, 2020.

This item must not be sold to any third party vendors.

Assessment of commercial fishery stocks benefit largely from using ecosystem-based approaches, which provide a more holistic picture of fisheries by allowing for more accurate characterizations of species interactions and seasonal fluctuations in environmental conditions. For this project, single-species delay-difference models for bluefish, striped bass, and menhaden are developed to approximate their yearly population. Empirical weight-at-age data from 1985-2012 are used to derive the parameters and estimates necessary for such models. Total biomass for each species were estimated over this 12-year period to conduct a pre-assessment to serve as the foundation for each single-species delay-difference model constructed. Each single-species model is then used to produce a line-of-best-fit for the biomass data derived in the pre-assessment. These include a retroactive, equilibrium, and local stability analyses; all of which are conducive for fisheries stock assessments. Lastly, these models are used to conduct a 20-year forecast for each species. This research therefore serves as the foundation for two distinct multi-species models, as well as the basis for more complex methods aimed at defining ecosystem-level patterns for these commercially viable Mid-Atlantic species.

ISBN: 9798672171159Subjects--Topical Terms:

515831
Mathematics.
Subjects--Index Terms:

Fisheries

An Ecosystem-Based Modeling Approach Towards the Development of a Predator-Prey Growth Model for Bluefish, Striped Bass, and Menhaden.
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520 $a Assessment of commercial fishery stocks benefit largely from using ecosystem-based approaches, which provide a more holistic picture of fisheries by allowing for more accurate characterizations of species interactions and seasonal fluctuations in environmental conditions. For this project, single-species delay-difference models for bluefish, striped bass, and menhaden are developed to approximate their yearly population. Empirical weight-at-age data from 1985-2012 are used to derive the parameters and estimates necessary for such models. Total biomass for each species were estimated over this 12-year period to conduct a pre-assessment to serve as the foundation for each single-species delay-difference model constructed. Each single-species model is then used to produce a line-of-best-fit for the biomass data derived in the pre-assessment. These include a retroactive, equilibrium, and local stability analyses; all of which are conducive for fisheries stock assessments. Lastly, these models are used to conduct a 20-year forecast for each species. This research therefore serves as the foundation for two distinct multi-species models, as well as the basis for more complex methods aimed at defining ecosystem-level patterns for these commercially viable Mid-Atlantic species.
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