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首页> 外文期刊>Pakistan journal of botany >Standing stock of seaweeds in submerged habitats along the Karachi Coast, Pakistan: an alternative source of livelihood for coastal communities
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Standing stock of seaweeds in submerged habitats along the Karachi Coast, Pakistan: an alternative source of livelihood for coastal communities

机译：巴基斯坦卡拉奇海岸潜水栖息地常驻海藻库存：沿海社区的替代生计来源

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Seaweeds are widely used as an alternate source of livelihood for coastal communities in different countries. Submerged habitats with nutrient-rich coastal waters along the Pakistan coast have rich algal stocks. With few exceptions, studies on seaweeds in Pakistan are mostly confined to intertidal areas. We have conducted preliminary surveys at Buleji, along the Karachi coast to access existing standing stocks of seaweeds. Samples were collected by SCUBA diving. Relative species abundances were determined using quadrat techniques. Overall, 17 species of macroalgae were recorded belonging to 2 major groups (Phaeophyceae 12, Rhodophyceae 5) and 6 families. Except diving site 6, the communities were dominated by Sargassum species. The majority of the recorded species had wide distribution ranges. Distribution patterns were mainly controlled by habitat type, depth, oceanographic conditions, and the nature of the sites. Many of the recorded species are commercially important. It is expected that further underwater surveys will help in exploring more algal beds along this coastline. A sustainable use of this algal biomass can provide an alternative source of income for coastal communities. Moreover, Pakistan has a long coastline with different geomorphic features; in this regard seaweed aquaculture in coastal areas especially near big cities can insert positive ecological impacts on coastal ecosystems as well as on the economic conditions of the coastal communities.
机译：海藻被广泛用作不同国家的沿海社区的替代生计来源。沿巴基斯坦海岸养殖富含营养丰富的沿海水域的淹没栖息地都有丰富的藻类股。凭借少数例外情况，巴基斯坦海藻的研究大多限于跨境地区。我们在沿卡拉奇海岸进行了Buleji进行了初步调查，以获得现有的海藻股票。通过水肺潜水收集样品。使用四边形技术确定相对物种丰富。总体而言，记录了17种型大甲群，属于2个主要群体（Pheaeophyceae 12，肾甲霉素5）和6个家庭。除潜水站点6外，社区由Sargassum物种主导。大多数记录的物种都有广泛的分布范围。分配模式主要受栖息地，深度，海洋学条件以及地点的性质控制。许多记录的物种是商业上重要的。预计进一步的水下调查将有助于沿着此海岸线探索更多的藻类床。可持续使用这种藻类生物量可以为沿海社区提供替代收入来源。此外，巴基斯坦拥有较长的海岸线，具有不同的地貌特征;在这方面，海藻水产养殖在沿海地区，特别是在大城市附近，可以对沿海生态系统以及沿海社区的经济状况插入积极的生态影响。

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