Seasonal variation in abundance and diet of the sand goby <i>Pomatoschistus minutus</i> (Pallas) in a northern Baltic archipelago

Aarnio, Katri; Bonsdorff, Erik

doi:10.1080/00785326.1993.10430374

Cited by 48 publications

(27 citation statements)

References 44 publications

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“…However, the seasonal trend to meet energy requirements in spring also by eating other meiofauna prey groups (e.g. bivalves) as well as macrofauna was also confirmed for P. minutus in the Baltic Sea, even though harpacticoids always comprised the most important prey group in each season (Aarnio and Bonsdorff 1993).…”

Section: Discussionmentioning

confidence: 99%

“…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). Another factor that may explain the absence of nematodes in the stomachs could be differences in digestion rates for these two taxa.…”

Section: Discussionmentioning

confidence: 99%

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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%

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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“…Many authors have stressed the role of predation by fish and decapods (top-down control) in regulating the dynamics of macrobenthic fauna (e.g. Wiltse et al 1984;Aarnio and Bonsdorff 1993;Sarda et al 1996). However, the abundance of no other epibenthic decapod or small fish displayed a strong correlation with community structure, although the diet of most of them is known to include macrobenthic invertebrates (e.g.…”

Section: Discussionmentioning

confidence: 99%

Macrozoobenthic community structure in a poikilohaline Mediterranean lagoon (Laki Lagoon, northern Aegean)

Μόγιας

Kevrekidis

2005

Helgol Mar Res

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“…Algae particles were not found as stomach contents in our study. Our diet analyses consequently show that P. elapoides is microcarnivore, as is the case for many other gobies (Blaber and Whitfield 1977;Gibson and Ezzi 1978;Grossman et al 1980;Kikuchi and Yamashita 1992;Onadeko 1992;Aarnio and Bonsdorff 1993;Humphries and Potter 1993;Swenson and McCray 1996).…”

Section: Discussionmentioning

confidence: 98%

“…While most gobies are benthic carnivores, consuming mainly crustaceans and polychaetes (Gibson and Ezzi 1978;Grossman et al 1980;Behrents 1989;Kikuchi and Yamashita 1992;Aarnio and Bonsdorff 1993;Humphries and Potter 1993;Swenson and McCray 1996), P. elapoides is a semipelagic fish, seldom settling on bottom structure (Dȏ tu and Tsutsumi 1959).…”

Section: Introductionmentioning

confidence: 99%

The mechanisms leading to ontogenetic diet shift in a microcanivore,Pterogobius elapoides(Gobiidae)

Choi

Suk

2012

Animal Cells and Systems

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A variety of fish species undergo an ontogenetic change in prey selectivity, and several potentially interacting factors, including nutrient requirement, microhabitat change, and foraging ability, may account for the occurrence of the shift. Here we examine the foraging ecology and ontogenetic diet shift of a micro-carnivorous goby, Pterogobius elapoides (serpentine goby), dominant component of fish assemblage in shallow rocky areas off the coast in Korea and Japan. Although most other gobies are primarily benthic carnivores, P. elapoides is a semipelagic fish; however, little is known about how those species change their foraging tactics with growth. In our diet analyses, the most common diet was pelagic copepods and benthic amphipods, and diet shift was observed from pelagic to benthic with growth. The ontogenetic diet shift seems to be the result of the preference for energetically more profitable prey in larger-size classes as well as the results of different prey availability due to among-habitat variation in diet. However, differential food preference does not appear to affect individual scope for searching food. Several factors such as predation pressures and interspecific resource partitioning might contribute to the changes in diet observed among size classes, which were included in our ongoing tests.

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Seasonal variation in abundance and diet of the sand goby Pomatoschistus minutus (Pallas) in a northern Baltic archipelago

Cited by 48 publications

References 44 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

Macrozoobenthic community structure in a poikilohaline Mediterranean lagoon (Laki Lagoon, northern Aegean)

The mechanisms leading to ontogenetic diet shift in a microcanivore,Pterogobius elapoides(Gobiidae)

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