The influence of grass carp on habitat structure and its subsequent effect on the diet of tench

Petridis, D.

doi:10.1111/j.1095-8649.1990.tb03555.x

Cited by 12 publications

(10 citation statements)

References 12 publications

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“…Zooplankton constituted most of the diet of Main Lake tench, but the macro-invertebrate fauna in this lake was very limited in diversity and was dominated by chironomid larvae, oligochaetes and bivalves (Giles et al, 1989). Petridis (1990) found adult tench eating zooplankton and also Asellus and chironomids in shallow experimental sites in the Lancaster canal.…”

Section: Discussionmentioning

confidence: 87%

The population biology of tench, Tinea tinea (L.), in two gravel pit lakes

Wright

Giles

1991

Journal of Fish Biology

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The populations of tench from two gravel pit lakes of contrasting habitat type were studied. The population density oftench from St Peter's Lake, which has abundant aquatic vegetation was 176 individuals ha-' (102.2 kg ha-') compared to 0.3 individuals ha -' (0.5 kg ha-') in the Main Lake which has very little aquatic vegetation. The results ofageing tench by scales, opercular bones and otoliths were compared; all three structures gave similar results up to 9 years ofage, but thereafter there were difficulties in ageing using scales and care was needed in counting annuli. The oldest tench caught was 15 years old. Growth of male and female tench was similar and fitted the von Bertalanffy model; for female tench L, = 573 mm, K=0,122 and for male tench L, = 586 mm, K=0,114. Recruitment was variable and strong year classes occurred in years with warm summers.

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Section: Discussionmentioning

confidence: 87%

The population biology of tench, Tinea tinea (L.), in two gravel pit lakes

Wright

Giles

1991

Journal of Fish Biology

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“…However, the utility of Zn in paleodiet studies has been challenged because of the influence of other factors in an aquatic environment (salinity, thermal regime, pH, alkalinity and the amount of particulate matter in the water) and because the physiological model explaining its trophic performance is not yet fully understood (Ezzo 1994;Halden et al 2000;Trancho and Robledo 2003). The considerably higher content of Zn in more herbivorous common carp and amur (grass carp) than in more omnivorous consuming tench (Petridis 1990;Brönmark 1994;Adámek et al 2003) may indicate another explanation, i.e. that this reversed Eltonian pyramide of Zn can be connected with the high Zn content in plants.…”

Section: Heavy Metalsmentioning

confidence: 92%

Compositional changes in fish scale hydroxylapatite during early diagenesis; an example from an abandoned meander

et al. 2009

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The chemistry of recent fish scales (tench, common carp, amur and European perch) and subrecent fish scales (European perch and mostly taxonomically not determined) was studied by means of laser ablation inductively coupled plasma mass spectrometry and electron microprobe from shallow boreholes in the abandoned meander Certak near Uherské Hradiste. A detailed study of subfossil fish confirms extremely rapid changes in the chemical composition of hydroxylapatite during very early diagenetic processes in the first 2 years, which does not change significantly in the bottom of the boreholes about 25 years old. While there is an enormous increase in Na, K, Ba and Sr, Fe and Mn, there is a major decrease in Mg. The fish scales from 70 to 78 cm (6-8 years old) are approaching already the level of francolite-type hydroxylapatite. The high Na content indicates carbonate substitutions for OH or PO 4 group. Consequently, environmental interpretations based on the chemistry of fossil hydroxylapatites require extreme caution. In recent fish scales, the element concentrations reflect not only the position in the trophic pyramid but also a complicated interplay of the diet, physiological processes and environmental contamination.

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“…He also found that fish bigger than 10 cm consumed amphipods and insect larvae. Petridis (1990) observed abundant chironomids and gastropods in alimentary tract of tench in Lancester Canal. However, positive selection of an Isopod Asellus aquaticus whereas negative selection of chironomids.…”

Section: Discussionmentioning

confidence: 99%

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Alas¹,

Altindag²,

Yilmaz³

et al. 2010

Turk. J. Fish. Aquat. Sci.

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In this study, alimentary canal contents of 188 tench (Tinca tinca L., 1758) caught from Beyşehir Lake (Turkey) between April 2004 and March 2005 were examined for feeding habits. Phytoplanktonic and zoooplanktonic organisms, insects, detritus (animal and vegetable) and two most common parasites of tench, Ligula intestinalis and Asymphylodora tincae were determined in observed in the alimentary canal of fish. There was a significant difference between the frequency of the existance of Chlorella, Coscinidiscus, Fragilaria, Mougetia, Phytoconis, Pinnularia, Rivularia, Synedra, Ulotrix, Brachionus, Gammarus sp., and Ligula intestinalis among seasons (df=3, P<0.05). Only 6 of these genera (Chaetophora, Coscinidiscus, Phytoconis, Surirella, Synedra, Daphnia) had a significant difference among age classes (df=5, P<0.05). Additionally, it was found that only 5 of the 188 tench (2.66%) were observed to have almost empty alimentary canal. Algae and macrophytes were found to be the most considerable food types in the present study, which is followed by zooplankton and insect larvae. Coscinidiscus, Fragilaria, Mougetia, Phytoconis, Pinnularia, Rivularia, Synedra, Ulotrix, Brachionus, Gammarus sp., ve Ligula intestinalis'in bulunma sıklıkları arasında önemli bir fark mevcuttur (df=3, P<0,05). Bu cinslerden yalnızca 6 tanesi (Chaetophora, Coscinidiscus, Phytoconis, Surirella, Synedra, Daphnia) yaş sınıfları arasında önemli bir farka sahipti (df=5, P<0,05). Ayrıca, 188 kadife balığından 5 tanesinin (%2,66) sindirim kanalının hemen, hemen boş olduğu bulunmuştur. Bu çalışmada, algler ve makrofitlerin en çok tercih edilen besin tipi olduğu, bunu zooplanktonlar ve böcek larvalarının takip ettiği tespit edilmiştir.

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The influence of grass carp on habitat structure and its subsequent effect on the diet of tench

Cited by 12 publications

References 12 publications

The population biology of tench, Tinea tinea (L.), in two gravel pit lakes

The population biology of tench, Tinea tinea (L.), in two gravel pit lakes

Compositional changes in fish scale hydroxylapatite during early diagenesis; an example from an abandoned meander

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