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Diversity and Distribution Patterns of Gastropods on Kupang Beach, Seruway District Halimatun, Futria; Mawardi, Abdul Latif; Wahyuni, Ayu; Hariani, Indri; Fauziah, Cut
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i1.6571

Abstract

Seruway is one of the sub-districts in Aceh Tamiang, which is located in the coastal area. This coastal area is dominated by mangrove species, where the mangrove area is used as a habitat for aquatic biota animals, one of which is gastropods. Gastropods are soft-bodied animals that have threaded shells. This research aims to determine the value of the species diversity index and distribution patterns of gastropods in Kupang Beach, Seruway District. This research is a type of quantitative descriptive research with sampling using a survey method. Sampling was taken using transects. Sampling was divided into 3 stations, namely the first station in the mangrove area, the second station in the beach area and the third station in the pond area. Each station consists of 4 transects measuring 50 meters, each transect has 4 plots measuring 10x10m. Samples that are obtained will be identified using an identification book. The research results showed that the number of gastropod species found was 17 species from 9 families with a total diversity index value at the research location, namely H'= 2.405, which is classified as medium. The distribution pattern of gastropods on Kupang Beach falls into two categories, namely the uniform category 59% and the undefined category 41%.
IDENTIFIKASI PTERYDOPHYTA DI KAWASAN UNIVERSITAS SAMUDRA Halimatun, Futria; Srijayanthi; Aini, Nur; Hariani, Indri; Tiara, Resa; Wandari, Welli; Hasanah, Baiti
JURNAL BIOSENSE Vol 7 No 01 (2024): Edisi Juni 2024
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas PGRI Banyuwangi, Jalan Ikan Tongkol No 01, Telp (0333) 421593, 428592 Banyuwangi 68416

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/biosense.v7i01.3541

Abstract

Tumbuhan tingkat rendah yang disebut pakis (Pteridophyta) berkembang biak menggunakan spora daripada biji. Tumbuhan paku (Pteridophyta) yang merupakan anggota famili Lygodiaceae, Lomariopsidaceae dan Dryopteridaceae yang paling banyak ditemukan di kawasan Universitas Samudra. penelitian ini bertujuan untuk mengidentifikasi spesies Pterydophyta yang ada dikawasan universitas samudra. Penelitian ini menggunakan pendekatan survei eksplorasi dan deskriptif,teknik pengumpulan data Dengan cara memeriksa morfologi dan deskripsi tanaman tersebut.sampel diidentifikasi menggunakan buku Kunci identifikasi yaitu buku taksonomi tumbuhan. Dalam penelitian ini di dapatkan 14 spesies Pterydophyta yang berbeda, yang dibagi menjadi 9 famili yaitu famili Polipodiaceae, Nefrolepidaceae, Dryopteridaceae, Lygodiaceae, Stenochlaena, Gleicheniaceae, Thelypteridaceae, Lomariopsidaceae, Pteridaceae. Keywords: Identifikasi;Pteridophyta;Universitas Samudra. Abstract Lower plants called ferns (Pteridophyta) reproduce using spores rather than seeds. Ferns (Pteridophyta) which are members of the Lygodiaceae, Lomariopsidaceae and Dryopteridaceae families are most commonly found in the Samudra University area. This research aims to identify Pterydophyta species in the Ocean University area. This research uses an exploratory and descriptive survey approach, data collection techniques by examining the morphology and description of the plants. The samples were identified using the key identification book, namely the plant taxonomy book. In this study, 14 different species of Pterydophyta were obtained, which were divided into 9 families, namely the Polypodiaceae, Nephrolepidaceae, Dryopteridaceae, Lygodiaceae, Stenochlaena, Gleicheniaceae, Thelypteridaceae, Lomariopsidaceae, Pteridaceae families. Keywords: Identification; Pteridophyta; Samudra University.
KARAKTERISTIK MORFOMETRIK BIVALBIA DI KAWASAN PADAT INDUSTRI DI PESISIR LANGKAT SUMUTRA UTARA: KARAKTERISTIK MORFOMETRIK BIVALBIA DI KAWASAN PADAT INDUSTRI DI PESISIR LANGKAT SUMUTRA UTARA Hariani, Indri; Mawardi, Abdul L.; Atmaja, T. Hadi Wibowo
JURNAL BIOSENSE Vol 7 No 01 (2024): Edisi Juni 2024
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas PGRI Banyuwangi, Jalan Ikan Tongkol No 01, Telp (0333) 421593, 428592 Banyuwangi 68416

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/biosense.v7i01.3565

Abstract

The coastal area of ​​Pangkalan Susu is a place with diverse marine biota. Apart from being a spawning place and source of nutrition, coastal areas are also a source of food for various marine biota, including gastropods and bivalves Morphometry is the size or comparison of external body size between one part and another. This research was carried out in September 2023 on the coast of Pangkalan Susu, Langkat Regency. Sampling was carried out in plots. Bivalves are grouped into 3 length classes, namely small size (1.0 cm – 2.0 cm), medium size (2.1cm – 3.0 cm), large size (>3.1cm). Based on the collection of bivalve species at each location, 3 species of bivalves were obtained. The 3 species of bivalves obtained were Anadara granosa, Placuna placenta and Atrina pectinata. All bivalve species are large in size. Morphometrics of the three bivalve species showed that location 1 showed higher values ​​compared to location 1 in terms of length, width and weight. Key words: Bivalves; Morphometrics; Pangkalan Susu.