Diet composition and feeding habits of the wide-eyed flounder, Bothus podas, in the Gulf of Gabes (Tunisia)

Abid, Souhir; Ouannes-Ghorbel, Amira; Jarboui, Othman; Bouaïn, Abderrahmen

doi:10.1007/s12526-012-0142-3

Cited by 3 publications

(3 citation statements)

References 31 publications

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“…However, no specific differences in observed trends of feeding intensity were seen in the present study for the reproductive period of G. firmispinatus, which is between March and May (Ma et al 2018). The lowest feeding intensity was observed in winter, which may have been related to the low water temperature then (Abid et al 2013), and could indicate strong temperature-dependent regulation of food intake in G. firmispinatus, or lower metabolism in this season, which may lead to a decrease in food ingestion to a minimum 24.10 30.67 35.20 27.08 16.71 21.46 38.15 44.60 57.13 26.03 13.12 26.66 28.11 28.72 (Šantić et al 2005). In contrast, the intensity of food intake was highest in September; this intake may have contributed to the accumulation of fat, which could be an additional source of energy for the fish in winter.…”

Section: Discussioncontrasting

confidence: 80%

“…The study of the feeding habits of a species provides valuable information on its possible distribution and niche in a food web (Wootton 1990). Studies on feeding ecology are also prerequisites for elucidating niche overlaps between and within species, and understanding the intensity of inter-and intraspecific interactions in fish communities (Abid et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Feeding habits of the cyprinid Gymnocypris firmispinatus in the Anning River, China

Wei

et al. 2020

Fish Sci

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The feeding habits and prey selection of Gymnocypris firmispinatus in the Anning River were investigated with respect to fish size, season and sex. Gut contents of 305 individuals ranging in size from 57 to 193 mm total length were analyzed, and 16.0% of the guts were found to be empty. The vacuity index indicated that the feeding intensity of the fish roughly followed a seasonal trend, with minimum food intake in winter. However, statistically insignificant variation in the vacuity index was observed between size classes and sexes. Overall, 46 prey taxa belonging to five orders (Ephemeroptera, Plecoptera, Trichoptera, Coleoptera and Diptera) were identified in the guts of 141 fish. G. firmispinatus fed almost exclusively on aquatic insects, of which Baetis sp. and Simulium sp. were the predominant prey species, followed by Diamesa sp. and Glossosoma sp. G. firmispinatus is a generalist feeder that relies upon a wide trophic spectrum. The multivariate analysis revealed that fish size was the principal factor affecting diet. Small individuals fed primarily on small ephemeropteran larvae and dipteran larvae, whereas larger individuals preferably consumed bigger trichopteran larvae. In terms of its prey, G. firmispinatus showed strong positive selection for dipteran larvae and trichopteran larvae, and negative selection for ephemeropteran larvae, plecopteran larvae and coleopteran larvae in all seasons. This study provides evidence that the observed diet of G. firmispinatus can be explained by prey selection rather than random feeding.

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Section: Discussioncontrasting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Feeding habits of the cyprinid Gymnocypris firmispinatus in the Anning River, China

Wei

et al. 2020

Fish Sci

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“…A number of single-species studies exist for wideeyed flounder, mainly dealing with growth (Nash et al, 1991;Schintu et al, 1994), reproduction (Morato, 2007;Abid et al, 2010), diel variability (Nash et al, 1994), diet composition (Nash et al, 1991;Bell and Harmelin-Vivien, 1983;Schintu et al, 1994;Darnaude et al, 2001;Esposito et al, 2010;Karachle and Stergiou, 2011a;Abid et al, 2013), migration routes (Evseenko, 2008), and gear selectivity (Esposito et al, 2010). However, those studies refer to areas of the central-western Mediterranean.…”

Section: Introductionmentioning

confidence: 99%

Morphology, sex ratio, and diet of Bothus podas (Delaroche, 1809) in Heraklion Bay, Crete (Greece)

Moutopoulos¹,

Chouli²,

Dogrammatzi³

et al. 2018

Turk J Zool

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The aim of the present study is to provide morphometric relationships for the Mediterranean wide-eyed flounder Bothus podas (Delaroche, 1809), to identify possible sexual dimorphism, and to determine the feeding habits and the functional role of the species in the ecosystem. Sampling was carried out during a trawl survey off the coast of northern Crete in early May of 2015. A total of 425 specimens were examined (175 males and 250 females; total length (TL) range: 6.2-13.5 cm and 6.0-15.1 cm, respectively). The relationships between TL and weight, interorbital space (IO), body height (BH), and mouth dimensions (horizontal mouth opening: HMO, vertical: VMO mouth opening, and mouth area: MA) were all significant (P < 0.05) and of power types. The estimated value of the exponent b of the length-weight relationship (LWR) for sexes combined was 2.923. Sexual dimorphism was exhibited for the relationships between TL and IO, BH, VMO, HMO, and MA, whereas this was not true for the LWR. The diet spectrum of B. podas includes mainly benthic invertebrates and to a lesser extent small benthic fishes. On one occasion, an individual larva of Fistularia commersonii was recorded in the stomach contents of a male, and this is the first report of any predator of this Lessepsian invader in the Mediterranean.

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Modelling the role of alien species and fisheries in an Eastern Mediterranean insular shelf ecosystem

Michailidis

Corrales

Karachle

et al. 2019

Ocean & Coastal Management

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Diet composition and feeding habits of the wide-eyed flounder, Bothus podas, in the Gulf of Gabes (Tunisia)

Cited by 3 publications

References 31 publications

Feeding habits of the cyprinid Gymnocypris firmispinatus in the Anning River, China

Feeding habits of the cyprinid Gymnocypris firmispinatus in the Anning River, China

Morphology, sex ratio, and diet of Bothus podas (Delaroche, 1809) in Heraklion Bay, Crete (Greece)

Modelling the role of alien species and fisheries in an Eastern Mediterranean insular shelf ecosystem

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