Using a unified invasion framework to characterize Africa’s first loricariid catfish invasion

Jones, Roy W; Weyl, Olaf L F; Hill, Martin P; Swartz, Ernst R

Title: Using a unified invasion framework to characterize Africa’s first loricariid catfish invasion
Creator: Jones, Roy W
Creator: Weyl, Olaf L F
Creator: Hill, Martin P
Creator: Swartz, Ernst R
Subject: To be catalogued
Date Issued: 2013
Date: 2013
Type: text
Type: article
Identifier: http://hdl.handle.net/10962/418081
Identifier: vital:71507
Identifier: xlink:href="https://doi.org/10.1007/s10530-013-0438-7"
Description: This paper presents evidence of establishment of a loricariid population in the Nseleni River in South Africa and uses a unified framework to determine its invasion stage. Specimens were identified morphologically as Pterygioplichthys disjunctivus (Weber 1991), but genetic barcoding results indicated close association with specimens that may have a hybrid history. The species was introduced into South Africa via the pet trade and the first record of introduction into the wild was in 2004. Samples collected in 2011 and 2012 demonstrated that there were multiple length cohorts in the population including juveniles (12–130 mm total length TL) and large (>300 mm TL) adult fish. Gonadal assessment of adults demonstrated the presence of reproduction capable specimens. The concurrent occurrence of mature adults and juvenile fish demonstrated establishment. Locality records indicate that P. disjunctivus has already spread between two rivers through an inter basin water transfer. Using a unified framework for invasions this invasion was categorized as a self-sustaining population in the wild with individuals surviving and reproducing a significant distance from their original point of introduction. Containment is suggested as potential management strategy.
Format: computer
Format: online resource
Format: application/pdf
Format: 1 online resource (7 pages)
Format: pdf
Publisher: SpringerLink
Language: English
Relation: Biological Invasions
Relation: Jones, R.W., Weyl, O.L., Swartz, E.R. and Hill, M.P., 2013. Using a unified invasion framework to characterize Africa’s first loricariid catfish invasion. Biological Invasions, 15, pp.2139-2145
Relation: Biological Invasions volume 15 p. 2139 2013 1573-1464
Rights: Publisher
Rights: Use of this resource is governed by the terms and conditions of the SpringerLink Terms of Use Statement ( https://link.springer.com/termsandconditions)
Rights: Closed Access

Hits: 378
Visitors: 380
Downloads: 11

Collections

Weyl, Olaf L F (Prof)

Hill, Martin Patrick (Distinguished Professor)

RU DST/NRF SARChI for Insects in Sustainable Agricultural Ecosystems

SDG 14. Life Below Water

RU South African Institute for Aquatic Biodiversity (SAIAB)

RU Department of Zoology and Entomology

		Thumbnail	File	Description	Size	Format
View Details Download			SOURCE1	Using a unified invasion framework to characterize Africa’s first loricariid catfish invasion.pdf	675 KB	Adobe Acrobat PDF	View Details Download