Patchy distribution fields: Survey design and adequacy of reconstruction

I. Kalikhman; I. Ostrovsky

doi:10.1006/jmsc.1996.0205

Patchy distribution fields: Survey design and adequacy of reconstruction

Research output: Contribution to journal › Article › peer-review

Abstract

A mathematical model (Kriging) was used to examine the effects of acoustic survey design on the adequacy of reconstruction of patchy distribution fields. The model simulates fish (or plankton) patches of different shapes and spatial orientations, and an acoustic survey by parallel transects. For a series of mathematical experiments, the patchy fields were reconstructed using simulated survey data. Conformity of the reconstructed fields to those originally generated was evaluated by calculating their correlations. The experiments indicate that a survey in the direction of patch elongation gives best results. The optimal ratio of the distance between transects to the autocorrelation radius for the field in the direction of surveying has been determined. Lack of a priori information on patch orientation may considerably reduce the quality of survey design. A posteriori determination of patch orientation allows reconstruction of the best field, attainable on the basis of the data from the survey conducted. In addition, surveys of moving patches are considered.

Original language	English
Pages (from-to)	809-818
Number of pages	10
Journal	ICES Journal of Marine Science
Volume	54
Issue number	5
DOIs	https://doi.org/10.1006/jmsc.1996.0205
State	Published - Oct 1997
Externally published	Yes

Bibliographical note

Funding Information:
We thank Drs P. D. Walline, C. Hollingworth, E. J. Simmonds and D. N. MacLennan for their suggestions and remarks, which we used in our study. We are grateful to the three anonymous reviewers and the Assistant Editor S. J. Smith for their constructive criticism which allowed us to improve the manuscript substantially. We are also grateful to the Rich Foundation and the US Agency for International Development (AID) whose financial support made this study possible.

Keywords

Acoustic survey design
Anisotropy
Autocorrelation radius
Coefficient of determination
Conformity
Distance between transects
Kriging
Patchy distribution field
Reconstruction

ASJC Scopus subject areas

Oceanography
Ecology, Evolution, Behavior and Systematics
Aquatic Science
Ecology

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10.1006/jmsc.1996.0205

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title = "Patchy distribution fields: Survey design and adequacy of reconstruction",

abstract = "A mathematical model (Kriging) was used to examine the effects of acoustic survey design on the adequacy of reconstruction of patchy distribution fields. The model simulates fish (or plankton) patches of different shapes and spatial orientations, and an acoustic survey by parallel transects. For a series of mathematical experiments, the patchy fields were reconstructed using simulated survey data. Conformity of the reconstructed fields to those originally generated was evaluated by calculating their correlations. The experiments indicate that a survey in the direction of patch elongation gives best results. The optimal ratio of the distance between transects to the autocorrelation radius for the field in the direction of surveying has been determined. Lack of a priori information on patch orientation may considerably reduce the quality of survey design. A posteriori determination of patch orientation allows reconstruction of the best field, attainable on the basis of the data from the survey conducted. In addition, surveys of moving patches are considered.",

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author = "I. Kalikhman and I. Ostrovsky",

note = "Funding Information: We thank Drs P. D. Walline, C. Hollingworth, E. J. Simmonds and D. N. MacLennan for their suggestions and remarks, which we used in our study. We are grateful to the three anonymous reviewers and the Assistant Editor S. J. Smith for their constructive criticism which allowed us to improve the manuscript substantially. We are also grateful to the Rich Foundation and the US Agency for International Development (AID) whose financial support made this study possible.",

year = "1997",

month = oct,

doi = "10.1006/jmsc.1996.0205",

language = "English",

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KW - Patchy distribution field

KW - Reconstruction

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Patchy distribution fields: Survey design and adequacy of reconstruction

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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