Morphometric and physical characteristics distinguishing adult Patagonian lamprey, Geotria macrostoma from the pouched lamprey, Geotria australis.

Autor: Baker CF; National Institute of Water and Atmospheric Research Ltd, Hamilton, New Zealand., Rossi CR; Instituto de Diversidad y Evolución Austral (IDEAus-CONICET), Puerto Madryn, Chubut, Argentina., Quiroga P; Instituto de Diversidad y Evolución Austral (IDEAus-CONICET), Puerto Madryn, Chubut, Argentina., White E; National Institute of Water and Atmospheric Research Ltd, Hamilton, New Zealand., Williams P; National Institute of Water and Atmospheric Research Ltd, Hamilton, New Zealand., Kitson J; Kitson Consulting Ltd, Otatara, Invercargill, New Zealand., Bice CM; Inland Waters and Catchment Ecology Program, South Australian Research and Development Institute (SARDI), Aquatic Sciences, Henley Beach, SA, Australia.; School of Biological Sciences, The University of Adelaide, Adelaide, SA, Australia., Renaud CB; Research and Collections, Canadian Museum of Nature, Ottawa, ON, Canada., Potter I; Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Murdoch, WA, Australia., Neira FJ; Neira Marine Sciences Consulting (Marscco), Blackmans Bay, Tasmania, Australia., Baigún C; Instituto de Investigación e Ingeniería Ambiental (CONICET-UNSAM), San Martín, Buenos Aires, Argentina.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2021 May 05; Vol. 16 (5), pp. e0250601. Date of Electronic Publication: 2021 May 05 (Print Publication: 2021).
DOI: 10.1371/journal.pone.0250601
Abstrakt: The pouched lamprey, Geotria australis Gray, 1851, has long been considered monotypic in the Geotriidae family with a wide southern temperate distribution across Australasia and South America. Recent studies have provided molecular and morphological evidence for a second Geotria species in South America; Geotria macrostoma (Burmeister, 1868). The aim of this study was to determine morphometric and physical characteristics of adult G. macrostoma that further differentiate this re-instated species of Geotriidae from G. australis. The diagnostic features discriminating immature adult G. macrostoma from G. australis when entering fresh water, are distinct differences in dentition, oral papillae and fimbriae counts and differences in coloration. In addition, G. macrostoma display greater growth of the prebranchial region and oral disc and has a deeper body depth and higher condition factor. All current ecological knowledge of the genus Geotria is based on Australasian populations, which may not be applicable to G. macrostoma. To ensure the conservation and protection of the Patagonian lamprey as a re-identified species, further investigations are needed to understand its life history, biology and ecology throughout its range.
Competing Interests: Several authors are employed by commercial companies that undertake consultancy relating to freshwater fish ecology and indigenous knowledge (Kitson Consulting Ltd, National Institute of Water and Atmospheric Research Ltd, Marscco). This does not alter our adherence to PLOS ONE policies on sharing data and materials.
Databáze: MEDLINE
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