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  Length and weight reconstruction of Chlorurus microrhinos (Scaridae) from isolated cranial bones and vertebrae

Rurua, V. A., Béarez, P., Hermann, A., & Conte, E. (2020). Length and weight reconstruction of Chlorurus microrhinos (Scaridae) from isolated cranial bones and vertebrae. Cybium: International Journal of Ichthyology, 44(1), 61-68. doi:10.26028/cybium/2020-441-008.

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 Creators:
Rurua, Vahine A., Author
Béarez, Philippe, Author
Hermann, Aymeric1, 2, Author              
Conte, Eric, Author
Affiliations:
1Archaeogenetics, Max Planck Institute for the Science of Human History, Max Planck Society, ou_2074310              
2Linguistic and Cultural Evolution, Max Planck Institute for the Science of Human History, Max Planck Society, ou_2074311              

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Free keywords: Length estimation, Length-weight relationship, Osteometry, Pacific Ocean, Scaridae
 Abstract: Parrotfishes are commonly exploited in artisanal fisheries in tropical and subtropical areas. Given their prolonged use, they are common finds in archaeological sites from Oceania. Despite their high occurrence in archaeozoological assemblages, the degree to which they have been exploited is difficult to estimate without any length and weight data. Here, we present an osteometric model for Chlorurus mircrorhinos, an ubiquitous species from the west-central Pacific Ocean, based on reliable body-length reconstruction from isolated skeletal parts. We collected 30 specimens from French Polynesia ranging between 336-713 mm total length and 304-5341 g fresh weight. The length-weight relationship was W = 3.36E-06*FL3.2960 with r2 higher than 0.9. The model is based on neurocranium, premaxilla, dentary, maxilla, anguloarticular, quadrate, hyomandibula and the upper and lower pharyngeals. For each bone, three measurements were taken and the values were plotted against the fork length. All selected bones have at least one regression equation with a high r2 (> 0.9) allowing reliable estimation of length and weight of C. microrhinos from its skeletal components. This study provides useful data for studies where bone conservation is affected by variable taphonomic factors or differential preservation, such as the stomach content of scarid predators, or archaeological and paleontological assemblages in Oceania.

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Language(s): eng - English
 Dates: 2020-032020-03
 Publication Status: Published in print
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.26028/cybium/2020-441-008
Other: shh2548
 Degree: -

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Title: Cybium: International Journal of Ichthyology
  Other : Cybium
Source Genre: Journal
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Publ. Info: Paris : Société Française d'Ichthyologie
Pages: - Volume / Issue: 44 (1) Sequence Number: - Start / End Page: 61 - 68 Identifier: ISSN: 0399-0974
CoNE: https://pure.mpg.de/cone/journals/resource/0399-0974