Physical, chemical and faunal characteristics of a perennial stream in arid northern Oman

Victor, Reginald; Al-Mahrouqi, Abdullah Issa

doi:10.1006/jare.1996.0125

Cited by 8 publications

(8 citation statements)

References 14 publications

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“…This high oxygen concentration may have influenced the dominance of hemiptera at the study stretch. The occurrence of Beatidae and Chronomidae in high abundance in this study is not unusual as this group of invertebrates have been reported to be common and major components of tropical streams (Victor and Ogbeibu, 1985;Victor and Matthew 1989;Ogbeibu and Victor, 1989;Victor and Al-Mahrouqi, 1996). The taxonomy and ecology of aquatic arachnids is poorly understood in Nigeria (Egborge, 1993).…”

Section: Discussionmentioning

confidence: 98%

“…The total number of invertebrate taxa (84) recorded in this stream is relatively high when compared to other temperate (Tsui and McCart, 1981;Lenat et al, 1981), arid (Victor and Al-Mahrouqi, 1996) and some topical (Victor and Ogbeibu, 1985;Ogbeibu and Egborge, 1995;Oribhabor, 1995;Umeozor, 1995) streams. Pre-impoundment studies on this stream also recorded lower invertebrate taxa (Okenyi, 1991, Edokpayi, et al, unpublished data).…”

Section: Discussionmentioning

confidence: 99%

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Hydrobiological studies on Ibiekuma river at Ekpoma, Southern Nigeria, after impoundment: The faunal characteristics

Edokpayi¹,

Osimen²

2009

African Journal of Science and Technology

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Hydrobiological studies on Ibiekuma river at Ekpoma, Southern Nigeria, after impoundment: The faunal characteristics

Edokpayi¹,

Osimen²

2009

African Journal of Science and Technology

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“…Species diversity of these wells was very low when compared to those of perennial streams and khawrs (coastal lagoons without mangroves) in Oman (Victor & Al-Mahrouqi, 1996;Victor & Victor, 1997). The wells studied are closed systems with small surface area, relatively deep, dark with low light conditions and also protected by a peripheral wall.…”

Section: Discussionmentioning

confidence: 96%

Water quality and invertebrate fauna of farm wells in an area affected by salinization in Oman

Victor

Al-Farsi

2001

Journal of Arid Environments

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“…Recently investigated areas are in North Africa (Arab et al, 2004;Zerguine et al, 2009;Chaib et al, 2013aChaib et al, , 2013b. Unfortunately, knowledge of freshwater fauna in the Arabian Peninsula is extremely limited (Victor & Al-Mahrouqi, 1996). In the N o n -c o m m e r c i a l u s e o n l y Oman region aquatic macroinvertebrates were previously investigated (Burt, 2003), but all groups were identified to family or at most to genus level.…”

Section: Introductionmentioning

confidence: 99%

“…Recently investigated areas are in North Africa (Arab et al, 2004; Zerguine et al, 2009;Chaib et al, 2013a Chaib et al, , 2013b. Unfortunately, knowledge of freshwater fauna in the Arabian Peninsula is extremely limited (Victor & Al-Mahrouqi, 1996). In the Correspondence: Bruno Rossaro, DeFENS, Dipartimento di Scienze per gli Alimenti, la Nutrizione e…”

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confidence: 99%

Relationships between physical and chemical factors and aquatic macroinvertebrates in perennial streams in the arid northern mountain basin El Batinah, Oman

Boulaaba¹,

Zrelli²,

Boumaïza³

et al. 2014

J Entomol Acarol Res

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The relationships between physical properties, water chemistry and aquatic macroinvertebrates were investigated in riffles of four perennial streams in the arid northern Oman. Samples were collected monthly in autumn, winter and spring with a Surber net. Thirty two invertebrate taxa were recorded, most species are widely distributed, but few species with very restricted distribution were also captured. Diptera followed by Pulmonata, Coleoptera and Odonata were the most represented taxa, Trichoptera and Heteroptera were a significant component only in one station (the Fezeh), where the lowest mean water temperature (23°C) was recorded. In the dry months from May to October, aquatic macroinvertebrates were completely absent. In order to summarise the community response some biotic indices were calculated. The highest diversity was observed in the Fezeh station. A seasonal gradient was also observed, with the highest diversity values in January, April, and December. The low faunal diversity was attributed to the high air and water temperature and the hydrological regime instability. A between station and a between month coinertia analysis was carried out, to analyse the response to spatial and seasonal factors. The first coinertia axis was correlated with altitude and substrate composition, while the second axis was correlated with air and water temperature.The present research emphasizes the urgency for preserving the less disturbed wadis in arid zones, because, despite their species poorness, their uniqueness in faunal composition requires special attention. The presence of few endemic species with very restricted distribution highlights the topicality and the value in investigating these areas, allowing the increase of our knowledge on biodiversity, ecology and biogeography about the benthic macroinvertebrates living in these extreme habitats. IntroductionRelationships between benthic macroinvertebrates and environmental variables were often matter of investigation (Depiereux et al., 1983; Wright et al., 1984;Ormerod, 1987; Ormerod & Edwards, 1987;Boulton & Lake 1992a, 1992bBoumaïza 1994; Gower et al., 1994;Tate & Heiny, 1995), inducing to consider macroinvertebrates communities as good indicators of water quality conditions (De Shon, 1995; Resh, 1995). Furthermore, studies of temporal variation in the community structure of streams (Fisher et al., 1982;Scrimgeour & Winterbourn, 1989) indicated that physical disturbances (e.g., water temperature, substrate composition and the hydrological regime) are important determinants in lotic systems (Sousa, 1984; Resh et al., 1988).Within the framework of the study of relationships between environmental factors and community composition freshwater ecosystems in extreme arid zones require special attention .The chain of Hajar mountain extending from northern Oman and the eastern United Arab Emirates is a part of the Arabian Highlands. The World Wildlife Fund for Nature identified this area as part of the Global 200 Ecoregions, i.e. it a priority area for biodivers...

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Physical, chemical and faunal characteristics of a perennial stream in arid northern Oman

Cited by 8 publications

References 14 publications

Hydrobiological studies on Ibiekuma river at Ekpoma, Southern Nigeria, after impoundment: The faunal characteristics

Hydrobiological studies on Ibiekuma river at Ekpoma, Southern Nigeria, after impoundment: The faunal characteristics

Water quality and invertebrate fauna of farm wells in an area affected by salinization in Oman

Relationships between physical and chemical factors and aquatic macroinvertebrates in perennial streams in the arid northern mountain basin El Batinah, Oman

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