Habitat structure and fish : assessing the role of habitat complexity for fish using a small, semiportable, 3-D underwater observatory

Fischer, Philipp; Weber, Arnd; Heine, Georg; Weber, Harald

Habitat structure and fish : assessing the role of habitat complexity for fish using a small, semiportable, 3-D underwater observatory

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2007

Autor:innen

Fischer, Philipp

Weber, Arnd

Heine, Georg

Weber, Harald

URI (zitierfähiger Link)

http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-61281

DOI (zitierfähiger Link)

https://doi.org/10.4319/lom.2007.5.250

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Biologie

Gesperrt bis

1. Januar 2100

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Limnology and Oceanography : Methods. 2007, 5(9), pp. 250-262. eISSN 1541-5856. Available under: doi: 10.4319/lom.2007.5.250

Zusammenfassung

In contrast to terrestrial ecology, three-dimensional (3-D) imaging technology is not well established as a method for studying species-habitat interactions in aquatic ecology. In this study, we used a semi-portable, digital, 3-D underwater observatory designed for long-term exposure in shallow water habitats to assess fish-habitat interactions to artificial structures of different complexity. The observatory was mounted on a cable-car system and was moved along a 50 m transect parallel to five artificial structures of different complexity and one control site. The optical unit took high-resolution digital images, in pairs, from each structure and the control site at a frequency of 30 min over 24 h and was then moved remotely to the next structure. The system was operated for 2 mo without being recovered and took a total of 2160 stereoscopic image pairs. The system proved highly valuable in assessing small-scale temporal patterns in fish-habitat interactions, as well as changes in habitat preferences of fish over the diel cycle. Such small-scale temporal and spatial patterns are important for a detailed understanding of species-habitat interactions, not only in fish but also in most aquatic macro-organisms. Nevertheless, such patterns can hardly be assessed using classical sampling devices due to labor and animal protection restrictions. However, the possibility of a significant increase in quantity of sampling through the use of remote imaging technology is accompanied by a significant increase in labor costs for image analysis. Therefore, further progress in semi- and fully automated systems for image analysis is needed, including 3-D imaging tools, for ecological studies.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

Habitat structure, aquatic ecology, imaging technology, 3-D underwater observatory, habitat complexity

Zitieren

ISO 690

FISCHER, Philipp, Arnd WEBER, Georg HEINE, Harald WEBER, 2007. Habitat structure and fish : assessing the role of habitat complexity for fish using a small, semiportable, 3-D underwater observatory. In: Limnology and Oceanography : Methods. 2007, 5(9), pp. 250-262. eISSN 1541-5856. Available under: doi: 10.4319/lom.2007.5.250

BibTex

@article{Fischer2007Habit-7630,
  year={2007},
  doi={10.4319/lom.2007.5.250},
  title={Habitat structure and fish : assessing the role of habitat complexity for fish using a small, semiportable, 3-D underwater observatory},
  number={9},
  volume={5},
  journal={Limnology and Oceanography : Methods},
  pages={250--262},
  author={Fischer, Philipp and Weber, Arnd and Heine, Georg and Weber, Harald}
}

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Universitätsbibliographie

Ja