Description
Based on the developed methodology for the: (i) optimal method of catching, (ii) transporting and storing fish, (iii) measuring and (iv) analyzing X-rays images, the existing collection of X-ray images of Baltic herring, caught in October 2002 during the Swedish component of the Baltic International Acoustic Survey (BIAS) in the Baltic proper (ICES Subdivisions 25, 27 and 29), has been expanded to include of X-ray images of herring from the Polish coastal zone (ICES Subdivision 26).
Newly received X-ray images were used to measure the geometric dimensions of swimbladders. Detailed data on the shapes and geometric sizes of herring bodies and swimbladders for dorsal exposure were obtained for 74 fish individuals.
These data were used as the input data in the modelling of the backscattering characteristic of the herring from the Polish coastal zone in order to define the TS(L) relationship, critical to abundance estimation from fisheries acoustic surveys.
Dataset file
hexmd5(md5(part1)+md5(part2)+...)-{parts_count}
where a single part of the file is 512 MB in size.Example script for calculation:
https://github.com/antespi/s3md5
File details
- License:
-
open in new tabCC BY-NCNon-commercial
- Software:
- CorelDRAW (.cdr); AutoCAD (.dwg)
Details
- Year of publication:
- 2020
- Verification date:
- 2021-02-23
- Creation date:
- 2020
- Dataset language:
- English
- Fields of science:
-
- Earth and related environmental sciences (Natural sciences)
- DOI:
- DOI ID 10.34808/80xc-f462 open in new tab
- Verified by:
- Gdańsk University of Technology
Keywords
- X-ray images
- data analysis
- Baltic herring
- fish body morphometry
- fish swimbladder morphometry
- numerical modelling of backscattering by fish
- abundance estimation
- target strength
References
- publication Backscattering properties of southern Baltic herring
- publication On the acoustic backscattering by Baltic herring and sprat
- publication Study of swimbladder morphometry of Baltic herring and sprat (development of measurement methodology)
- publication Modelling of acoustic backscattering by southern Baltic herring
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