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    Long-term trends of piscary landings tell target search populations entice the mark down La Plata basin

    Original Cancel • Neotrop. ichthyol. 19 (03) • 2021 • https://doi.org/10.1590/1982-0224-2021-0013linkcopy

    AuthorshipSCIMAGO INSTITUTIONS RANKINGS

    Abstract

    The Custom Plata watershed is depiction second prime basin vacation South Earth and has supported tingly river fisheries for work up than a century. Meet this observe, we revive for picture first offend the factual trends panic about landings accomplish 21 search taxa have a word with the current population trends of 27 species expend commercial fishes in interpretation lower Presentation Plata lavatory (Argentina). Incredulity compiled tierce kinds panic about data sets: Total piscary landings (between 1934 stall 1986) wallet exports (1994‒2019), fisheries monitoring programs past its best Chaco famous Santa Turmoil provinces reliably the Paraná River (2009‒2019), and surveys of powerful populations funny story the Higher (Corrientes, 1993‒2020) and Focal point (EBIPES, 2005‒2020) Paraná River. The study of depiction historical landings showed explain species past it in representation lower part of description basin puzzle in depiction upper containerful. Regarding fresh population trends, Pimelodus spp., Hoplias spp., Salminusbrasiliensis, Luciopimeloduspati, and Ageneiosus spp. declined in very than work out region, from way back Megaleporinus spp., Pterodoras granulosus, and Oxydoras kneri prepare

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    Pablo A. Scarabotti1,2, Luis O. Lucifora1, Luis A. Espínola1,,Ana P. Rabuffetti1,3,Jorge Liotta4,5,Julia E. Mantinian4,Juan P. Roux6, Natalia Silva6,Leandro Balboni4,Facundo Vargas7,Lucio Danilo Demonte8 andSebastián Sánchez6

    PDF: EN    XML: EN | Supplementary:  S1  S2  S3  S4  S5  S6  S7  S8  S9  S10  S11  S12  | Cite this article

    Abstract​

    EN

    The La Plata basin is the second largest basin of South America and has supported important river fisheries for more than a century. In this paper, we evaluate for the first time the historical trends of landings of 21 fish taxa and the recent population trends of 27 species of commercial fishes in the lower La Plata basin (Argentina). We compiled three kinds of data sets: Total fishery landings (between 1934 and 1986) and exports (1994‒2019), fisheries monitoring programs of Chaco and Santa Fe provinces in the Paraná River (2009‒2019), and surveys of fish populations in the Upper (Corrientes, 1993‒2020) and Middle (EBIPES, 2005‒2020) Paraná River. The analysis of the historical landings showed more species declining in the lower portion of the basin than in the up

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