The Annual Food Consumption and Prey Preferences of Pike (Esox lucius) in the River Frome, Dorset

Mann, R. H. K.

doi:10.2307/4312

Cited by 97 publications

(127 citation statements)

References 19 publications

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“…The mean length of prey fish increased significantly with the size of pike in this lake. Findings in this study are consistent with previous studies (Mann, 1982: Little et al 1998Wysujavk et al 2001;Amundsen et al, 2003). Besides, Liao et al (2002) indicated that large pike tended to consume large prey fish in Spirit Lake.…”

Section: Discussionsupporting

confidence: 83%

“…In contrast, Chapman et al (1989) indicated that foraging on invertebrates was not limited to smaller pike and instead that invertebrates were found in the stomach of 24-60 cm standard body length pike from several lakes in Canada. The several studies also found size-related changes in the feeding of different pike populations (Mann, 1982;Eklöv & Hamrin, 1989;Sammons et al 1994;Kangur & Kangur, 1998;Çubuk et al 2006). This change based on length may be result from maximum energy requirement and gape-size limited in predator.…”

Section: Discussionmentioning

confidence: 93%

“…White bream and common bream were negatively selected due to morphology of prey fish and mouth gape size of predator. Many authors reported that pike was selective predator that prefers fishes with elongated, cylindrical body and soft fins in different habitats (Mann, 1982;Nilsson & Brönmark, 2000;Alp et al, 2008). Prey selection may be affected by gape of mouth of predator, dorsal fin ray type and abundance of prey fish, as well as shape, size, and height of their body.…”

Section: Discussionmentioning

confidence: 99%

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Yazıcıoğlu¹,

Polat²,

Yılmaz³

2018

Turk. J. Fish. Aquat. Sci.

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This study was conducted to determine feeding biology and prey selection of pike inhabiting Lake Ladik (Ladik, Samsun). Sampling was carried out monthly between November 2009 and October 2010. The stomachs of 204 individuals were analyzed and 32.35% of them were empty. Feeding intensity varied by seasons and length group. Fullness index values were the lowest during summer and in large sized pike, while feeding intensity was the highest during autumn and in small specimens. Prey fish dominated the diet in all length groups throughout the year whereas feeding on invertebrates was limited to small pikes. For small, medium and large length individuals, the most preferred prey fish were Perca fluviatilis (V a = 0.139, χ2 = 3.86, P < 0.05), Chondrostoma regium (V a = 0.169, χ2 = 5.752, P < 0.05) and Abramis brama (V a = 0.337, χ2 = 22.731, P < 0.01), respectively. The pike exhibited a specialist feeding strategy on fish. The most important food items of pike were Scardinius erythrophthalmus, Perca fluviatilis and Abramis brama, respectively. Also, it was determined that there were significant positive relationships between prey dimensions-predator size and predator mouth sizes-predator length.

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

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Untitled

Yazıcıoğlu¹,

Polat²,

Yılmaz³

2018

Turk. J. Fish. Aquat. Sci.

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“…The aforementioned predatory fishes are considered as typical opportunists, very flexible in their feeding habits, capable of changing their diet spectra rapidly in response to changes in the abundance and vulnerability of available prey (Mann 1982;Chapman, Mackay 1984;Adams 1991;Beaudoin et al 1999;Brylińska 2000). They usually focus their feeding effort on the most abundant and easy to catch prey available in the environment, according to the optimal foraging theory (Werner, Hall 1974).…”

Section: Discussionmentioning

confidence: 99%

First report on the importance of alien gobiids in the diet of native piscivorous fishes in the lower Vistula River (Poland)

Płąchocki

Kobak

Kakareko

2012

Oceanological and Hydrobiological Studies

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We conducted a snapshot study to check the importance of non-native Ponto-Caspian gobies (monkey and racer goby) in the diet of native obligate (northern pike, pikeperch) and facultative (Eurasian perch) predators in the Vistula River 3-4 years after the appearance of aliens. In total 71 fish with non-empty stomachs, taken randomly from net catches from various parts of the river were analyzed, including 32 pike, 20 pikeperch and 19 perch specimens. We found that gobiids prevailed in the diet of smaller (<30 cm standard length, SL) individuals of pike and pikeperch, as well as larger (>15 cm SL) specimens of perch, although the effect of predator size on the presence of gobiids in the diet was not significant in the case of perch. Our results indicate that gobiids as a prey fish can stimulate considerable changes in local food webs, which require further studies.

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“…Cannibalism of younger (smaller) individuals by older (larger) conspecifics (intercohort cannibalism) is the most common form of cannibalism in fishes (Smith and Reay, 1991). For species with potential for intercohort overlap in habitat use, cannibalism rates may have important management implications (e.g., Mann, 1982).…”

mentioning

confidence: 99%