کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6411709 1629927 2015 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Linking hydrologic, physical and chemical habitat environments for the potential assessment of fish community rehabilitation in a developing city
ترجمه فارسی عنوان
پیوند دادن محیط هیدرولوژیکی، فیزیکی و شیمیایی محیط زیست برای ارزیابی بالقوه توانبخشی جامعه ماهی در یک شهر در حال توسعه
کلمات کلیدی
هیدرولوژی، کیفیت آب، توان بالقوه توانبخشی، مناسب بودن محل سکونت، طاقچه اکولوژیکی، مجموعه ماهی،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی


- We present a potential assessment model based on response of fish to their habitat.
- It links hydrologic, physical and chemical habitat gradients to fish attributes.
- Requiring a little assemblage information and expertise makes it practical.
- Habitat and fish were monitored at 144 sites with 5084 fish tested.
- Application results were well validated by references and freshwater transparency.

SummaryAquatic ecological rehabilitation is increasingly attracting considerable public and research attention. An effective method that requires less data and expertise would help in the assessment of rehabilitation potential and in the monitoring of rehabilitation activities as complicated theories and excessive data requirements on assemblage information make many current assessment models expensive and limit their wide use. This paper presents an assessment model for restoration potential which successfully links hydrologic, physical and chemical habitat factors to fish assemblage attributes drawn from monitoring datasets on hydrology, water quality and fish assemblages at a total of 144 sites, where 5084 fish were sampled and tested. In this model three newly developed sub-models, integrated habitat index (IHSI), integrated ecological niche breadth (INB) and integrated ecological niche overlap (INO), are established to study spatial heterogeneity of the restoration potential of fish assemblages based on gradient methods of habitat suitability index and ecological niche models. To reduce uncertainties in the model, as many fish species as possible, including important native fish, were selected as dominant species with monitoring occurring over several seasons to comprehensively select key habitat factors. Furthermore, a detrended correspondence analysis (DCA) was employed prior to a canonical correspondence analysis (CCA) of the data to avoid the “arc effect” in the selection of key habitat factors. Application of the model to data collected at Jinan City, China proved effective reveals that three lower potential regions that should be targeted in future aquatic ecosystem rehabilitation programs. They were well validated by the distribution of two habitat parameters: river width and transparency. River width positively influenced and transparency negatively influenced fish assemblages. The model can be applied for monitoring the effects of fish assemblage restoration. This has large ramifications for the restoration of aquatic ecosystems and spatial heterogeneity of fish assemblages all over the world.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hydrology - Volume 523, April 2015, Pages 384-397
نویسندگان
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