Alimentación de Percichthys Trucha (Cuvier y Valenciennes, 1833) y P. Colhuapensis (Mac Donagh, 1955) (Osteichthyes: Percichthyidae) en el Río Negro, Argentina

Cazorla, Andrea López; Tejera, Lidia

doi:10.14409/natura.v1i34/35.3803

Cited by 3 publications

(3 citation statements)

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“…Aplochiton zebra Jenyns (McDowall andNakaya, 1988), A.t. Aplochiton taeniatus Jenyns (McDowall andNakaya, 1988;Ruiz and Marchant, 2004), P.t. Percichthys trucha (Valenciennes) (Ferriz, 1989;Campos et al, 1993a;Ruiz et al, 1993;Ruiz, 1993;Ruzzante et al, 1998;Ferriz, 2000;Lopez Cazorla and Tejera, 2003), P.m. Percichthys melanops Girard (Campos et al, 1998;Ruiz and Marchant, 2004), N.i. Nematogenys inermis (Guichenot) (Ruiz and Marchant, 2004), H.m. Hatcheria macraei (Guirard) (Ruiz and Marchant, 2004).…”

Section: Current Trends In the Ecology Of Macroinvertebrates In Cautimentioning

confidence: 99%

First report of inventory and role of macroinvertebrates and fish in Cautín river (38° S, Araucania region Chile)

et al. 2020

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Abstract The Cautin river is located in the 137 years old Araucania region, Chile (38°S), and is characterized by alterations through human interference due agriculture and towns in its surrounding basin, the presence of salmonids, and by its mixed regime, originated from snow melting in summer and rains in winter. The aim of the present study was to make a review of the inventory and ecological role of the benthic inland water macroinvertebrates of the River Cautin, in order to understand their importance in the ecosystem of the river. The fauna of this river includes a fauna composed of endemic and introduced fish, which has, however, been only poorly studied until now. The literature revealed the presence of abundant populations of Diptera, Trichoptera and Ephemeroptera larval stages, and few crustaceans specifically amphipods and freshwater crabs along the river’s course. Many of these macroinvertebrates are prey for both introduced salmonids and native fishes. Similar results have been reported for other southern Argentinean and Chilean Patagonian rivers.

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Section: Current Trends In the Ecology Of Macroinvertebrates In Cautimentioning

confidence: 99%

First report of inventory and role of macroinvertebrates and fish in Cautín river (38° S, Araucania region Chile)

et al. 2020

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“…The first studies are merely systematic (Mac Donagh and Thormählen, 1945;Mac Donagh, 1950. Later research revealed data about the diet and feeding habits of this species in different freshwater bodies (Ferriz, 1989(Ferriz, , 2000Lopez Cazorla andTejera, 2003-2004). The only data about the age and growth of the largemouth perch were published by Guerrero (1984Guerrero ( , 1989, who performed studies in different Patagonian freshwater ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Age and growth of the largemouth perch Percichthys colhuapiensis in the Negro river, Argentine Patagonia

Cazorla

Sidorkewicj

2008

Fisheries Research

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“…Biological knowledge of this species is scarce. Some authors have evaluated its trophic polymorphism, habitat, dietary aspects, relative abundances and ecological behaviour (Ruzzante et al., 1998, 2003; Macchi et al., 1999; Logan et al., 2000; Scasso and Campos, 2000; Lopez Cazorla and Tejera, 2003–2004; Buria et al., 2007; Aigo et al., 2008). However, little is known about other biological traits.…”

Section: Introductionmentioning

confidence: 99%

Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia

Cazorla

Sidorkewicj

2010

Journal of Applied Ichthyology

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Age, growth and reproductive characteristics of creole perch, Percichthys trucha, were investigated in the Negro River, southern Argentina from samples collected seasonally, December 1994-December 1995 Age was estimated via scale and whole otolith reading methods. Total length (n = 413) ranged from 103 to 432 mm, and weight from 12 to 1042 g. Significant differences between the length-weight relationships of males and females were detected (P < 0.05). Isometric growth was observed in juveniles and males, whereas total population and females exhibited positive allometric growth. The marking pattern in scales and otoliths followed an annual rhythm, with the formation of only one annulus in scales and only one hyaline band in otoliths during autumn-winter. The oldest males were 5 years old whereas maximum age in females was 12 years from scales and 15 years from otoliths. Because scales were found to underestimate age in individuals older than 4 years, otoliths were considered to be the best structures for creole perch age determination. Gompertz growth parameters based on otolith data were L¥: 428.0 mm, k = 0.46 and t 0 = 0.43 for total population (r = 0.90), L¥: 410.7 mm, k = 0.42 and t 0 = 0.46 for males (r = 0.91), and L¥: 434.1 mm, and k = 0.49 and t 0 = 0.43 for females (r = 0.91). Lengths at first maturity (TL 50 ) were 260 and 241 mm in males and females, respectively, both of which corresponded to ages between 1 and 2 years. Macroscopic gonad inspection and the high percentage of juveniles captured during summer indicated that spawning begins at the end of spring.

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Alimentación de Percichthys Trucha (Cuvier y Valenciennes, 1833) y P. Colhuapensis (Mac Donagh, 1955) (Osteichthyes: Percichthyidae) en el Río Negro, Argentina

Cited by 3 publications

References 0 publications

First report of inventory and role of macroinvertebrates and fish in Cautín river (38° S, Araucania region Chile)

First report of inventory and role of macroinvertebrates and fish in Cautín river (38° S, Araucania region Chile)

Age and growth of the largemouth perch Percichthys colhuapiensis in the Negro river, Argentine Patagonia

Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia

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