Selection of meiobenthic prey by juvenile spot (Pisces): an experiments, study

Nelson, A. H.; Coull, Bruce C.

doi:10.3354/meps053051

Cited by 41 publications

(27 citation statements)

References 30 publications

(37 reference statements)

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“…Gee 1989 and references therein). Food selection of demersal fish depends on the availability of the prey, which is mainly determined by its density, visibility, accessibility and mobility (Nelson and Coull 1989). Feeding of the studied fish on meiofauna was mainly focused on harpacticoids living on or near the sediment surface, whereas nematodes have a deeper vertical distribution (Aarnio and Bonsdorff 1993;Aarnio 2000).…”

Section: Discussionmentioning

confidence: 99%

Meiofauna as food source for small-sized demersal fish in the southern North Sea

et al. 2012

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Meiofauna play an essential role in the diet of small and juvenile fish. However, it is less well documented which meiofaunal prey groups in the sediment are eaten by fish. Trophic relationships between five demersal fish species (solenette, goby, scaldfish, dab \20 cm and plaice \20 cm) and meiofaunal prey were investigated by means of comparing sediment samples and fish stomach contents collected seasonally between January 2009 and January 2010 in the German Bight. In all seasons, meiofauna in the sediment was numerically dominated by nematodes, whereas harpacticoids dominated in terms of occurrence and biomass. Between autumn and spring, the harpacticoid community was characterized by Pseudobradya minor and Halectinosoma canaliculatum, and in summer by Longipedia coronata. Meiofaunal prey dominated the diets of solenette and gobies in all seasons, occurred only seasonally in the diet of scaldfish and dab, and was completely absent in the diet of plaice. For all fish species (excluding plaice) and in each season, harpacticoids were the most important meiofauna prey group in terms of occurrence, abundance and biomass. High values of Ivlev's index of selectivity for Pseudobradya spp. in winter and Longipedia spp. in summer provided evidence that predation on harpacticoids was species-selective, even though both harpacticoids co-occurred in high densities in the sediments. Most surficial feeding strategies of the studied fish species and emergent behaviours of Pseudobradya spp. and Longipedia spp. might have caused this prey selection. With increasing fish sizes, harpacticoid prey densities decreased in the fish stomachs, indicating a diet change towards larger benthic prey during the ontogeny of all fish species investigated.

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Section: Discussionmentioning

confidence: 99%

Meiofauna as food source for small-sized demersal fish in the southern North Sea

et al. 2012

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“…Copepod dominance may be real (e.g. fauna1 communities in microcosms to determine how Nelson & Coull 1989) or an artifact of non-chitinous many, and what kinds of, meiofauna were eaten. meiofauna being digested rapidly and thus not being visually present in the fish guts (Scholz et al 1991, Feller & Coull 1995.…”

Section: Introductionmentioning

confidence: 99%

Subtropical Australian juvenile fish eat meiofauna:experiments with winter whiting Sillago maculata and observations on other species

Coull¹,

Greenwood²,

Fielder³

et al. 1995

Mar. Ecol. Prog. Ser.

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Meiofauna are known to be trophically integrated into estuarine food webs in temperate regions primarily as food for bottom-feeding juvenile fishes. In subtroplcal/tropical mangrovedominated estuaries there were few data indicating juvenile fish utilized meiofauna for food. After determining several fishes that ate meiofauna in southeastern Queensland, Australia,,juvenile winter whiting Sillago maculata were allowed to feed on natural mud-dwelling meiofaunal communities in microcosms. Six juvenile whiting (21 to 38 mm) significantly reduced both the nematode and copepod populations in the feeding microcosms and ate a mean of 177 nematodes and 65 copepods fish-' h -' This feeding rate, if continued 4 times a day, is sufficient to provide an adequate daily ration for the whiting [based on estimates from similarly feeding North American juvenile fish). Of the available copepods the whiting ate significantly more Brianola sp., Canuellidae sp. and Ectinosoma sp. than would have been expected by chance. They d~d not select Stenheha (D.) sp., probably because it burrowed beyond the bite depth of the whiting. Whiting are an economically important fish in the IndoPacific and they require meiofauna in their diet during the juvenile stages. They obtain this meiofauna from mangrove-derived detrital muds; in an aquaculture setting they would probably need to be fed meiofauna.

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“…De acordo com WERNER & HALL (1974), MORAIS & BODIOU (1984), NELSON & COULL (1989), GILL & HART (1998), LUNARDON (1990), LUNARDON et al (1991), o comportamento alimentar está relacionado com o tamanho da presa, da boca do predador, com a morfologia do aparelho digestório, capacidade estomacal e com a estratégia de forrageamento. Os mecanismos empregados pelos peixes para sua alimentação, representam adaptações que os capacitam a tomada de um tipo específico de presa (LABROPOULOU & PAPADOPOULOU-SMITH 1999).…”

Section: Estaçõesunclassified

Alimentação natural de Etropus crossotus Jordan & Gilbert (Teleostei, Pleuronectiformes, Paralichthyidae), na Armação do Itapocoroy, Penha, Santa Catarina, Brasil

Lunardon-Branco

Branco

2003

Rev. Bras. Zool.

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Selection of meiobenthic prey by juvenile spot (Pisces): an experiments, study

Cited by 41 publications

References 30 publications

Meiofauna as food source for small-sized demersal fish in the southern North Sea

Meiofauna as food source for small-sized demersal fish in the southern North Sea

Subtropical Australian juvenile fish eat meiofauna:experiments with winter whiting Sillago maculata and observations on other species

Alimentação natural de Etropus crossotus Jordan & Gilbert (Teleostei, Pleuronectiformes, Paralichthyidae), na Armação do Itapocoroy, Penha, Santa Catarina, Brasil

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