HABSCORE—applications and future developments of related habitat models

Milner, Nigel; Wyatt, R. J.; Broad, Kenneth

doi:10.1002/(sici)1099-0755(199807/08)8:4<633::aid-aqc275>3.0.co;2-7

Cited by 36 publications

(23 citation statements)

References 6 publications

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“…In each stream, a 50 m reach was selected in order to collect information about channel dimensions, flow regime, type of substratum and water quality following the methods of the American Public Health Association, (APHA, 1995), Gordon et al . (1992) and Milner et al . (1998).…”

Section: Methodsmentioning

confidence: 99%

Feeding ecology and habitat preferences of the catfish genus Trichomycterus in low‐order streams of the Colombian Andes

Chará

Baird

Telfer

et al. 2006

Journal of Fish Biology

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Six lower order streams in the south-west of Colombia were sampled on a monthly basis in order to determine the status of Trichomycterus species in relation to their food supply (macroinvertebrates), and physico-chemical habitat. Fishes were sampled by electrofishing and samples taken for dietary analysis. Macroinvertebrates were collected using a Surber sampler. Trichomycterus spp. populations were present in all streams in habitats ranging from soft to hard substrata and from relatively stagnant waters to fast flowing streams. The average density of the fishes ranged from 0Á06 to 1Á14 individuals m À2 with peaks in population corresponding to recruitment of individuals of <1 g. Trichomycterus spp. were found to be benthic carnivores with a diet mostly of aquatic insects. The index of relative importance for the dietary items was 35Á0, 10Á5, 1Á9 and 7Á8% for Chironomidae, Trichoptera, Ephemeroptera and Oligochaeta respectively. Combined with physical habitat data, ordinations of fishes and macroinvertebrate data suggested that differences in abundance among sites were driven by stream size and flow regime, indicating dominance of the physical habitat, although a high correlation between Trichomycterus spp. and Chironomidae abundances (r ¼ 0Á81, P ¼ 0Á049) was also recorded.

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Section: Methodsmentioning

confidence: 99%

Feeding ecology and habitat preferences of the catfish genus Trichomycterus in low‐order streams of the Colombian Andes

Chará

Baird

Telfer

et al. 2006

Journal of Fish Biology

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“…Among them, PHABSIM (Physical Habitat Simulation System; Bovee et al 1988), HABSCORE (Milner et al 1998) and ESTIMHAB (Lamouroux and Capra 2002) are species-oriented in-stream habitat models that need accurate local calibration. These methods do not focus on obtaining a general description of the hydraulic habitat based on a large range of variables at the site scale, but usually estimate selected combinations of habitat features in detail.…”

Section: Introductionmentioning

confidence: 99%

The lentic–lotic character of Mediterranean rivers and its importance to aquatic invertebrate communities

2009

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Hydromorphological features are crucial in structuring habitats for freshwater organisms. The quantification of these variables is often performed through accurate measuring or detailed estimation, but their assessment is not always feasible for river management purposes. Economic and time constraints often lead to difficulty in creating simple summaries of collected data for practical use. The Lentic-lotic River Descriptor (LRD) was developed to identify the character of a river site in terms of local hydraulic conditions. Information about the presence of flow types, channel substrates, in-stream vegetation, organic debris and artificial features is included in its calculation. The main aim of this paper is to investigate whether the lentic-lotic character of a river site, as summarized with the LRD descriptor, is relevant to aquatic invertebrate communities in nearly natural river sites. Invertebrate data were collected with multi-habitat, proportional sampling and hydromorphological information was gained by applying the CARAVAGGIO method (river habitat survey technique) in the field. The dataset was generated from High or Good ecological status river sites located in Mediterranean areas of Italy. Correspondence Analysis was performed to relate the invertebrate community structure to a set of catchment-scale, reach-scale and chemical environmental variables. The results of the multivariate analysis indicate that LRD provides a persuasive explanation of the most important axis of variation in benthic data. This paper also presents the optimal LRD range for a set of invertebrate taxa, accompanied by a short discussion of their potential use in conservation issues.

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“…For example, electrofishing can be applied within point abundance sampling designs that can be effective for monitoring the diel activity of (small) fishes (reviewed by Copp, ) or the status of rare species (e.g., the critically endangered European eel, Anguilla anguilla , Anguillidae; Laffaille, Briand, Fatin, Lafage, & Lasne, ). However, capturing fish in longer river reaches using electrofishing might be more suitable where the monitoring aim is to assess biological/ecological integrity, as biotic indices require data at multiple organization levels, from size structure to assemblage richness (e.g., Noble, Cowx, Goffaux, & Kestemont, ; Pont et al, ; Schmutz, Kaufmann, Vogel, Jungwirth, & Muhar, ), often in conjunction with data on habitat quality (e.g., Van Liefferinge et al, ; Milner, Wyatt, & Broad, ).…”

Section: Approaches To Fish Monitoringmentioning

confidence: 99%

Effective monitoring of freshwater fish

et al. 2019

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Freshwater ecosystems constitute only a small fraction of the planet's water resources, yet support much of its diversity, with freshwater fish accounting for more species than birds, mammals, amphibians or reptiles. Fresh waters are, however, particularly vulnerable to anthropogenic impacts, including habitat loss, climate and land use change, pollution and biological invasions. This environmental degradation, combined with unprecedented rates of biodiversity change, highlights the importance of robust and replicable programmes to monitor freshwater fish. Such monitoring programmes can have diverse aims, including confirming the presence of a single species (e.g., early detection of alien species), tracking changes in the abundance of threatened species, or documenting long‐term temporal changes in entire communities. Irrespective of their motivation, monitoring programmes are only fit for purpose if they have clearly articulated aims and collect data that can meet those aims. This review, therefore, highlights the importance of identifying the key aims in monitoring programmes and outlines the different methods of sampling freshwater fish that can be used to meet these aims. We emphasize that investigators must address issues around sampling design, statistical power, species’ detectability, taxonomy and ethics in their monitoring programmes. Additionally, programmes must ensure that high‐quality monitoring data are properly curated and deposited in repositories that will endure. Through fostering improved practice in freshwater fish monitoring, this review aims to help programmes improve understanding of the processes that shape the Earth's freshwater ecosystems and help protect these systems in face of rapid environmental change.

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HABSCORE—applications and future developments of related habitat models

Cited by 36 publications

References 6 publications

Feeding ecology and habitat preferences of the catfish genus Trichomycterus in low‐order streams of the Colombian Andes

Feeding ecology and habitat preferences of the catfish genus Trichomycterus in low‐order streams of the Colombian Andes

The lentic–lotic character of Mediterranean rivers and its importance to aquatic invertebrate communities

Effective monitoring of freshwater fish

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