Diversity and Dominance of Bivalvia in the Semedu Beach Area Semedusari Village Lekok District Pasuruan Regency as a Potential Learning Resource for High School Biology Class X Keanekaragaman dan Dominasi Bivalvia di Kawasan Pantai Semedu Desa Semedusari Kecamatan Lekok Kabupaten Pasuruan sebagai Potensi Sumber Belajar Biologi SMA Kelas X

Abstract

Bivalves are a group of mollusks that live and spread in various coastal waters of Indonesia. They occupy shallow water ecosystems, such as beaches, seagrass ecosystems, algae, and coral reefs. One of the Bivalve habitats is Semedu Beach located in Semedusari Village, Lekok District, Pasuruan Regency with diverse substrates such as mud, coral and rocks. This study aims to analyze the morphology of Bivalves based on the diversity index and dominance index at Semedu Beach, and has the potential as a learning resource for Class X high school biology. The method used in this research is purposive sampling using 15 transects and 10 plots. The results of the study found as many as 5 orders of 11 diverse species. The orders include Arcida, Venerida, Ostreida, Cardiida, and Mytiloida. The results of the diversity index of the Bivalve class on Semedu Beach have a level of diversity that is categorized as moderate, with a diversity index value of 1.88. While the dominance index on Semedu Beach has a dominance index value of 0.18 which is categorized as low, due to the absence of dominating species. The results of the analysis of the relationship between bivalve morphology research and biology learning in the independent curriculum, especially in biodiversity material for class X Phase E students with learning outcomes (CP) mastered by students and setting learning objectives that match the characteristics of students so that the learning process is achieved effectively. The results of this linkage identification can be developed into digital-based learning resources, such as the utilization of the Virtual Field Trip (VFT) method.