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Theme Park and Associated DevelopmentsFinal Environmental Impact Assessment7.3.30 Of the above species, Schoenus falcatus (see Figure 7.3b~3) is considered the most importantbecause it was for the first time recorded in Hong Kong under the present study, found only in thearea with water flow and near rocky shore at Penny's Bay. The species had neither been reportedin the Biodiversity Survey (1998, in preparation) nor by J. Shaw (1999). This species has beenreported in Kuizhou, Guangxi, Taiwan, Vietnam and Ryukyu Island; the species had not beenreported in Guangdong up to Tang and Wang (1961). Berchemia lineata, a creeping shrub foundon rocky shore, is also locally rare but not protected in Hong Kong and had only been seen on SaiWan (Sai Kung) and a few outlying islands. Scattered individuals were found on the rocky shoreon the west side of Penny's Bay (see Figure 7.3d). Scleria rugosa, a cyperaceae annual herb, israre but not protected in Hong Kong and had only been seen along stream in Tai Tarn (HongKong) and Lai Chi Chong (Sai Kung). A small populations of this species was found in backshorevegetation of rocky shore with freshwater seepage on the west shore of Penny's Bay.Freshwater Streams7.3.31 The four main freshwater streams within the Assessment Area are Mong Tung Hang Stream behindthe Cheoy Lee shipyard, a stream behind the CLP Penny's Bay Gas Turbine Plant and twostreams at Pa Tau Kwu Pak Wan and Pa Tau Kwu Nam Wan (see Figure 7.3a for locations).7.3.32 The upper Mong Tung Hang Stream with rocky substrate was observed to be natural and freefrom visible pollution, with shrubby riparian vegetation. The lower section is channelised and isrouted under the shipyard (see Figure 7.3b-3).7.3.33 The stream behind the CLP Penny's Bay Gas Turbine Plant is a natural watercourse and wasobserved to be free from visible pollution, with shrubland habitats along the upper section, andbrackish wetland at the estuary in Penny's Bay.7.3.34 The conditions of the two streams at Pa Tau Kwu are similar given their similarity in geographic andphysical environment. Both streams are small with bedrock as substratum; habitats along thesestreams comprise riparian vegetation including shrubland/grassland species. The stream at Pa TauKwu Pak Wan flows into the sea. The stream at Pa Tau Kwu Nam Wan is smaller than the streamat Pak Wan, and it drains into an abandoned agricultural field.7.3.35 In general all upper stream courses upland of the Tsing Chau Tsai headland have limited waterflow. These small bedrock streams are expected to support only limited aquatic life.BASELINE CONDITIONS - WILDLIFE AND FAUNA7.3.36 A review of the survey findings indicates that the wildlife recorded within the Assessment Areashow little seasonal variation with the exception of the avifauna (birds). More bird species wasrecorded within the Assessment Area during the winter season (about 28% of the recorded birdspecies are winter visitors to Hong Kong). Neither rare nor protected wildlife species were foundduring the night survey. The key findings of the wildlife surveys are presented below; details ofwildlife species recorded are provided in Annex F-3.Scott Wilson (Hong Kong) Ltd in association with ERM Hong Kong 7-7Shankland Cox • Wilbur Smith Associates
Theme Park and Associated DevelopmentsFinal Environmental Impact AssessmentMammals7.3.37 Faeces of civets were observed only once in January 1999 on a major path on Fa Peng Tengwhere the dominant vegetation is grassland/shrubland mosaic (see Figure 7.3d). No more recordsof civet nor their faeces were found during the survey period. No signs of other mammal, such asbarking deer (Muntiacus reevesi) were recorded, which is likely to be due to the lack of suitablehabitats as the areas are too open and there is not sufficient cover for large mammals.Herpetofauna7.3.38 For herpetofauna, only 3 common species, the Paddy Frog Rana limnocharis, Brown Tree FrogPolypedates megacephalus and Ornate Pigmy Frog Microhyla ornata were recorded infreshwater wetland areas behind the Cheoy Lee shipyard during the field surveys.7.3.39 Although several populations of Romer's Tree Frog (fhilautus romeri) have been recorded inLantau Island, no signs of Romer's Tree Frogs (including tadpoles and audible frog calls) werefound during the surveys conducted in February, May, October, November and December 1999.Invertebrates7.3.40 Nine species of dragonfly and damselfly were recorded in the Assessment Area and they are allcommon in Hong Kong. The habitats within the Assessment Area are not favourable for dragonfliesand damselflies, most of recorded species were encountered close to areas with fresh water.7.3.41 The field surveys recorded thirty-four species of butterfly, but none of which is rare nor ofecological significance. Most of the butterflies were encountered at the edge of woodlands andoften settle on nearby shrubby vegetation.Stream Fauna7.3.42 No rare, endangered, nor endemic stream invertebrates were found at any of the stream samplingsites; identified species were all common and typical of freshwater streams in Hong Kong.7.3.43 Five fish species were found in the streams, including the locally rare Rice Fish (Oryzias latipes) inMong Tung Hang Stream (Figure 7.3b-3). Mosquito Fish (Gambusia affinis) were identified inseepage pools and artificial ditches in the shipyard, as well as Grey Mullet fyfugil cephalus),Mudskipper (Periophthalmus cantonensis) and Therapon jarbua in the stream behind the CLPPenny's Bay Gas Turbine Plant. Except the Rice Fish which is locally rare (location shown inFigure 7.3a\ the others are common species. No fish species were found in upper stream.Scott Wilson (Hong Kong) Ltd in association with ERM Hong Kong 7-8Shankland Cox • Wilbur Smith Associates
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