POLA SEBARAN UNDUR-UNDUR LAUT (Hippidae) BERDASARKAN SALINITAS SUBSTRAT DI PANTAI PAGAK, KEC. NGOMBOL, PURWOREJO, JAWA TENGAH (Distribution Pattern of Mole Crab (Hippidae) Based on The Substrat’s Salinity in Pagak Beach, Ngombol District, Purworejo Regency, Central Java)

Setiaji Nugroho, S. Suryanti, S. Rudiyanti
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Abstract

 Pesisir selatan Jawa, khususnya pantai Pagak, Kabupaten Purworejo merupakan daerah potensial dengan beragam jenis biota yang seringkali dimanfaatkan masyarakat setempat sebagai bahan makanan. Biota tersebut diantaranya adalah yutuk (undur-undur laut) yang bermanfaat secara ekologis maupun ekonomis, namun pemanfaatan belum optimal. Penelitian ini bertujuan untuk mengetahui kelimpahan dan pola sebaran undur-undur laut sebagai dasar pemilihan daerah penangkapan undur-undur laut dan hubungan salinitas substrat dengan kelimpahan undur-undur laut yang ada di pantai Pagak, Kabupaten Purworejo. Penelitian dilakukan pada bulan Januari 2018. Pengambilan sampel biota dan substrat dilakukan pada tiga stasiun dimana setiap stasiun dilakukan tiga kali pengulangan pada hari yang berbeda. Pengambilan sampel menggunakan teknik purposive sampling. Hasil penelitian menunjukkan kelimpahan undur-undur laut (hippidae) di pantai Pagak berkisar 2-4 individu/m2 dengan pola sebaran yang mengelompok. Kelimpahan tersebut cenderung lebih tinggi pada salinitas substrat kisaran 33-35 ppt. Salinitas substrat berpengaruh terhadap kelimpahan undur-undur laut (hippidae) di pantai Pagak dan keduanya mempunyai hubungan yang lemah (r = 0,371). Southern coast of Java, especially Pagak beach, Purworejo Regency is a potential area with various types of biota that are often used by local people as food. One of the biota is mole crab that is useful ecologically and economically, while the existing utilization is not yet optimal and sustainable. The purpose of this research is to know the abundance and distribution pattern of mole crab as the basis for the selection of good and sustainable fishing areas of mole crab, and the relationship between substrate salinity and the abundance of mole crab at Pagak beach, Purworejo Regency. The study was conducted in January 2018. Samples collection of biota and substrate were conducted at three stations where each station was carried out with three replication on different days. Purposive sampling technique was used to take the sample. The results showed the abundance of mole crab (hippidae) at Pagak beach ranged from 2 to 4 individuals / m2 with a group pattern of distribution. The abundance tends to be higher in the substrate salinity of 33-35 ppt range. Substrate salinity and abundance of mole crab have weak relationships
爪哇的南海岸,尤其是帕塔克海岸,普沃霍区是一个潜在的生物种类领域,经常被当地社区用作食物。这些生物包括生态和经济上有益的食材,但还不是最理想的。这项研究的目的是确定海底的丰富性和分散模式,以确定海底的盐度与普沃雷霍区帕塔克海岸的丰富性和基质关系。这项研究于2018年1月进行。生物和基质样本在三个不同的车站进行,每个车站重复三次。采样技术采用采样技术。研究表明,巴塔克海滩上有大量的退潮潮,有2-4个个体/ 2- 2平方英尺,有密集的分布模式。在33-35 ppt范围内,基质盐度往往更高。基岩盐碱化影响了巴塔克海岸大量的水,两者的关系都很弱(r = 371)。Java的南海岸,尤其是Pagak海滩,Purworejo丽晶是一个潜在的区域和不同types of那是生物经常过去by local people美国食品。一号》是鼹鼠螃蟹就是有用生物ecologically和economically,而《existing utilization是最佳的还没有和可持续。这项研究的目的是了解鼹鼠蟹的独特和分布模式,以及在帕达克海滩(Purworejo Regency)的子步和友好捕蟹的基础。这个研究是由2018年1月起草的。样本收藏馆of生物and substrate)是conducted at三个位置每站是哪里carried out with三个replication在不同的日子。Purposive技巧是习惯忍受抽样样品。《鼹鼠abundance of The results那里螃蟹(hippidae) at Pagak海滩ranged从2到4 individuals - m2 with a集团distribution的模式。《abundance tends to be in The认证substrate -之salinity ppt太阳城。鼹鼠Substrate salinity and abundance of螃蟹有软弱relationships
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