Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/14156
Title: spatial modeling of fish distributions
Authors: Chirehwa, Maxwell Tawanda
Advisors: FAES, Christel
ILLIAN, Janine
SMOUT, Sophie
Issue Date: 2012
Publisher: tUL Diepenbeek
Abstract: Fish abundance is thought to be related to environmental factors and interactions between species. Catches at locations close to each other may also be similar resulting in spatial autocorrelation. The aim of this report is to assess the relationship between fish abundance and environmental correlates, the relationship between distributions of different fish species and temporal trends in fish abundance. Data for whiting, haddock and cod fish species were collected under the North Sea-International Bottom Trawl Survey (NS-IBTS) from 1994 to 2005. Approximate full Bayesian inference was performed based on the Integrated Nested Laplace Approximation (INLA) approach. Predictions of fish catches per quarter and age class for 1994 and 2005 were done for each of the three species. Results show that there is a relationship between fish abundance and depth of the sea. Different species are more abundant at locations of different depth which varied with quarter and age class. Further to this, t
Notes: Master of Statistics-Biostatistics
Document URI: http://hdl.handle.net/1942/14156
Category: T2
Type: Theses and Dissertations
Appears in Collections:Master theses

Files in This Item:
File Description SizeFormat 
10299952011009.pdf1.78 MBAdobe PDFView/Open
Show full item record

Page view(s)

36
checked on May 15, 2022

Download(s)

26
checked on May 15, 2022

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.