Size‐related changes in habitat selection by larval grayling (<i>Thymallus thymallus</i> L.)

Nykänen, Marjukka; Huusko, Ari

doi:10.1034/j.1600-0633.2003.00013.x

Cited by 31 publications

(33 citation statements)

References 33 publications

(116 reference statements)

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“…Although many studies have shown that microhabitat associations across localised scales are important to fish (e.g. Angermeier, 1987;Aadland, 1993;Jowett & Richardson, 1995;Vadas & Orth, 2001;Nykanen & Huusko, 2003), approaches that perform observations at these small scales alone are unable to detect the association between fish assemblages and large-scale environmental factors. Environmental factors occurring over large spatial scales are of particular importance in large dryland rivers such as the Barwon-Darling, where fish are capable of migrating hundreds of kilometres within their lifetime (Reynolds, 1983;Mallen-Cooper, 1989).…”

Section: Resultsmentioning

confidence: 98%

A Large-scale, Hierarchical Approach for Assessing Habitat Associations of Fish Assemblages in Large Dryland Rivers

Boys

Thoms

2006

Hydrobiologia

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Multiple-scale assessments of fish-habitat associations are limited despite the fact that riverine fish assemblages are influenced by factors operating over a range of spatial scales. A method for assessing fishhabitat assemblages at multiple scales is proposed and tested in a large Australian dryland river, the Barwon-Darling River. Six discrete mesohabitat types (large wood, smooth bank, irregular bank, matted bank, mid-channel and deep pool) nested within 10 km long river reaches were sampled. Individual reaches were, in turn, nested within four larger geomorphological zones, previously identified along the river. Fish assemblages varied significantly between mesohabitat types and at different spatial scales. Golden perch (Macquaria ambigua), Murray cod (Maccullochella peelii peelii) and common carp (Cyprinus carpio) were strongly associated with large wood, but golden perch and Murray cod exhibited higher habitat specificity than carp. Bony herring (Nematalosa erebi) were more common in shallow edgewater habitats. At the riverscale, regional differences in the fish assemblage occurred at scales closely corresponding to geomorphological zones and these differences were associated with changes in the relative abundance of species rather than the addition or replacement of species. The proposed hierarchical framework improves the efficiency of fish surveys in large rivers by viewing meso-scale fish-habitat associations in the context of larger-scale geomorphological processes.

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Section: Resultsmentioning

confidence: 98%

A Large-scale, Hierarchical Approach for Assessing Habitat Associations of Fish Assemblages in Large Dryland Rivers

Boys

Thoms

2006

Hydrobiologia

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“…Availability of suitable habitat is important to potential prey animals, and is a limiting factor in their distribution (Pringle 1982;Hacker and Steneck 1990;Moksnes et al 1998;Phelan et al 2001;Nykänen and Huusko 2003;Kley and Maier 2005). Much research has focussed on the relationship between environmental heterogeneity and species richness and co-existence in un-invaded ecosystems (see Kadmon and Allouche 2007).…”

Section: Discussionmentioning

confidence: 99%

Invader–invader interactions in relation to environmental heterogeneity leads to zonation of two invasive amphipods, Dikerogammarus villosus (Sowinsky) and Gammarus tigrinus Sexton: amphipod pilot species project (AMPIS) report 6

Platvoet

Dick

MacNeil³

et al. 2009

Biol Invasions

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As biological invasions continue, interactions occur not only between invaders and natives, but increasingly new invaders come into contact with previous invaders. Whilst this can lead to species replacements, co-existence may occur, but we lack knowledge of processes driving such patterns. Since environmental heterogeneity can determine species richness and co-existence, the present study examines habitat use and its mediation of the predatory interaction between invasive aquatic amphipods, the Ponto-Caspian Dikerogammarus villosus and the N. American Gammarus tigrinus. In the Dutch Lake IJsselmeer, we found broad segregation of D. villosus and G. tigrinus by habitat type, the former predominating in the boulder zone and the latter in the soft sediment. However, the two species co-exist in the boulder zone, both on the short and longer terms. We used an experimental simulation of habitat heterogeneity and show that both species utilize crevices, different sized holes in a plastic grid, non-randomly. These amphipods appear to optimise the use of holes with respect to their 'C-shape' body size. When placed together, D. villosus adults preyed on G. tigrinus adults and juveniles, while G. tigrinus adults preyed on D. villosus juveniles. Juveniles were also predators and both species were cannibalistic. However, the impact on G. tigrinus of the superior intraguild predator, D. villosus, was significantly reduced where experimental grids were present as compared to absent. This mitigation of intraguild predation between the two species in complex habitats may explain the co-existence of these two invasive species.

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“…It could be possible to cope with these two errors by enhancing the transferability of habitat models or by using multi-objective optimization algorithms. Improving transferability enables a habitat model to represent habitat use of a target species that can change according to sites (Leftwich et al 1997;Mäki-Petäy et al 2002;Guay et al 2003;Huusko 2003, 2004;Vanreusel et al 2007), seasons , life stages (Nykänen and Huusko 2003) and other ecophysiological conditions. This may also contribute to a better understanding of target species or ecosystems which can be obtained from reliable habitat models.…”

Section: Discussionmentioning

confidence: 99%

Abundance versus presence/absence data for modelling fish habitat preference with a genetic Takagi–Sugeno fuzzy system

Fukuda

Mouton

Baets

2011

Environ Monit Assess

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This study compared the accuracy of fuzzy habitat preference models (FHPMs) and habitat preference curves (HPCs) obtained from the FHPMs in order to assess the effect of two types of data [log-transformed fish population density (LOG) and presence-absence (P/A) data] on the habitat preference evaluation of Japanese medaka (Oryzias latipes). Three independent data sets were prepared for each type of data. The results differed according to the data sets and the types of data used. The HPCs showed a similar trend, whilst the degrees of preference were different. The model accuracy also differed according to the data sets used. Although almost no statistical difference was observed, on average, the P/A-based models showed a better performance according to the threshold-independent performance measures, whilst the LOG-based models showed better performance in predicting absence of the fish. These results can be explained partly from the different shapes of HPCs. This case study of Japanese medaka demonstrated the effect of different types of data on habitat preference evaluation. Further studies should build on the present finding and evaluate the effects of data characteristics such as the size of data sets and the prevalence for better understanding and reliable assessment of the habitat for target species.

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Size‐related changes in habitat selection by larval grayling (Thymallus thymallus L.)

Cited by 31 publications

References 33 publications

A Large-scale, Hierarchical Approach for Assessing Habitat Associations of Fish Assemblages in Large Dryland Rivers

A Large-scale, Hierarchical Approach for Assessing Habitat Associations of Fish Assemblages in Large Dryland Rivers

Invader–invader interactions in relation to environmental heterogeneity leads to zonation of two invasive amphipods, Dikerogammarus villosus (Sowinsky) and Gammarus tigrinus Sexton: amphipod pilot species project (AMPIS) report 6

Abundance versus presence/absence data for modelling fish habitat preference with a genetic Takagi–Sugeno fuzzy system

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