几种红树林植物在浙南沿海北移引种试验

为筛选在温州地区可成功引种的红树林植物,调查了不同种源红树林植物的年生长情况。结果表明：秋茄、无瓣海桑、桐花、海漆可安全越冬,保存率分别为秋茄（77%）〉桐花（73%）〉海漆（70%）〉无瓣海桑（15%）,而拉关木、木榄、尖瓣海莲、红海榄、老鼠簕、白骨壤均死亡。在0℃低温下,相对电导率较夏季增幅大小的顺序为：拉关木〉无瓣海桑〉桐花〉1年生秋茄〉8年生秋茄;SOD活性增幅最大的是桐花,比夏季增加了105%,秋茄、拉关木SOD活性基本没有变化;脯氨酸含量拉关木增幅最大,冬季比夏季增加了2 854%,而无瓣海桑和8年生秋茄脯氨酸含量则变化很小。综合分析,无瓣海棠、桐花、海漆和秋茄基本上可在浙南地区安全过冬,而其余红树林植物是否适宜在浙南栽植还有待进一步研究。     

深圳湾红树林保护区土壤营养状况研究

2009年11月至2011年10月期间每月对深圳湾红树林保护区6个采样点进行土壤样本采集,并对土壤的理化性质和营养元素含量进行测定,结果发现:土壤含水量高,存在一定的季节性变化;土壤pH值在6.5～7.5之间;土壤电导率高,含盐丰富;土壤粉粒含量所占比例最大;有机质含量极其丰富,各样点差异较大;各采样点速效氮含量在100 mg/kg左右;有效磷含量在30 mg/kg左右;速效钾含量在750 mg/kg左右,比农田土壤丰富得多;说明流经市区的两条河流将丰富的营养物质带入深圳湾.在2011年年初,监测到的各项营养元素的含量骤然降低,与深圳筹备26届世界大学生运动会期间环境治理密切相关,而在2011年年底各项指标出现反弹.     

海南东寨港几种国外红树植物引种初报

为我国华南沿海防浪护岸林体系工程建设试验性引进优质红树植物资源，旨在提高防护林体系的建设工程质量和增强生物工程体系的抗灾、减灾能力．从生物生态学特性、生长适应性、树高、地径的生长量以及开花结实情况，初步分析了海南岛东寨港从澳大利亚和墨西哥引进的几种红树植物的生长表现．结果表明：拉关木、直立柱果木和阿吉木在该地区可开花结果，其中拉关木生长表现量优，为一种耐高盐度的速生树种，根据寒害调查情况，拉关木和澳洲白骨壤有较耐寒的生长特性，具北移栽培的潜力。     

Fishery resources and economic gain in three mangrove areas on the south-east coast of India

Abstract The fishery resources and fishing income in three different mangrove areas were evaluated. The mangrove-rich area provided high catches of shellfish and finfish and yielded high fishery income, compared with the mangrove-poor areas. Luxuriant mangrove areas supported a catch of 11 kg shellfish ha⁻¹ day⁻¹ and 4.5 kg finfish ha⁻¹ day⁻¹, corresponding with an economic gain of US$ 14 (Rs 603.7) day⁻¹ for shellfish and US$ 3 (Rs 130.5) day⁻¹ for finfish. The value of maintaining mangroves to ensure better fishery resources and to support coastal economies was identified. Management practices for conserving and enhancing mangroves and associated fishery resources are suggested.     

Screening Mangrove Endophytic Fungi for Antimalarial Natural Products

We conducted a screening campaign to investigate fungi as a source for new antimalarial compounds. A subset of our fungal collection comprising Chinese mangrove endophytes provided over 5000 lipophilic extracts. We developed an accelerated discovery program based on small-scale cultivation for crude extract screening and a high-throughput malaria assay. Criteria for hits were developed and high priority hits were subjected to scale-up cultivation. Extracts from large scale cultivation were fractionated and these fractions subjected to both in vitro malaria and cytotoxicity screening. Criteria for advancing fractions to purification were developed, including the introduction of a selectivity index and by dereplication of known metabolites. From the Chinese mangrove endophytes, four new compounds (14–16, 18) were isolated including a new dimeric tetrahydroxanthone, dicerandrol D (14), which was found to display the most favorable bioactivity profile.     

Identifying mangrove areas for fisheries enhancement; population assessment in a patchy habitat

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广西沿海红树林区的水鸟

广西沿海地区位于一条重要的候鸟迁徙通道上，那里的红树林区给为数众多的水鸟提供了繁殖、越冬和迁徙中途歇息的场所。在红树林区记录到115种水鸟。这些鸟类中，102种是候鸟，包括13种夏候鸟、64种冬候鸟、25种旅鸟，因此红树林区水鸟类的多样性表现出明显的季节性。迁徙季节水鸟的种类和数量都最多，繁殖季节则最少。黑脸瑟鹭（Platalea minor)是世界上最濒危的鸟类之一，一个越冬种群在该地区红树林中被发现。