Rumput laut Eucheuma cottonii merupakan alga yang  mengandung karaginan yang berguna dalam berbagai industri. Kualitas rumput laut yang baik dapat ditentukan berdasarkan ukuran talus yang besar. Salah satu upaya untuk mendapatkan talus yang besar adalah dengan memanfaatkan bahan alami berupa santan kelapa yang diperkirakan berperan sebagai zat pengatur tumbuh bagi rumput laut. Tujuan penelitian ini adalah untuk mengetahui pengaruh pemberian santan kelapa dengan lama perendaman yang berbeda terhadap laju pertumbuhan Eucheuma cottonii. Metode penelitian yang digunakan adalah metode eksperimental menggunakan Rancangan Acak Lengkap  (RAL) dengan satu faktor yaitu lama perendaman 0, 6, 12, 18 jam. Data yang diperoleh dianalisis menggunakan Analis of varian (ANOVA) pada taraf  kepercayaan  95%. Perbedaan hasil antar perlakuan dianalisis dengan Duncan Multiple Range Test (DMRT). Hasil penelitian menunjukkan bahwa pemberian santan kelapa dengan lama perendaman yang berbeda memberikan pengaruh signifikan terhadap pertumbuhan Eucheuma cottonii. Berdasarkan rata-rata parameter pengamatan yang meliputi berat basah, panjang dan kadar air, pemberian santan kelapa dengan lama perendaman 12 jam memberikan laju pertumbuhan Eucheuma cottonii yang lebih tinggi dibandingkan durasi waktu perendaman yang lain.

The era of the industrial revolution 4.0 brings challenges for educators to improve learning. In the 21st century learning framework requires easy generations to have skills and knowledge in the field of technology. Especially during the current covid-19 pandemic,itrequirs generations to utilize Information Technology and Communication in the learning proces. This study aims to discuss issues realated to the use of Information and Communication Technology in improving education in the era of the Covid-19 pandemic. The research methodology used is a qualitative research type through library research which is interpreted to produce information in the form of knowledge.The results of the discussion of this research show that Information and Communication Thechnology has a major influence in the era of the Covid-19 pandemic. The Ministry of Education issues a policy with distance learning (online) with the From Work Home System. Information and Communication Technology has several benefits including:(1) increasing student motivation;(2) Gaining insight from the horizon of thinking;(3) Fostering a spirit of togetherness;(4) Effektive and efficient digital portfolios;(5) Being a measuring tool used at school. The application in the online learning process are: Zoom application,google Hangouts application,whatsapp application,teacher room application,zenius learning application, and e-learning application.Learning media used to improve distance learning process (online) such as:internet,e-learning,e-mail,PowerPoint, and learning CDs. By utilizing learning media and application like this,it is easy for generations to have skills and abilities in terms of using and utilizing Information anf Communication Technology properly.

This paper is retracted by editor due to publication ethics missconducted by author (simultaneously publication in other journal).

This study aims to determine the differences in student learning motivation during the COVID-19 pandemic through the provision of structured assignments and independent assignments. This article is a type of quasi-experimental research. This study's population was all Biology Department students at one of the higher education institutions in Southeast Sulawesi. The sample of this study was 3rd-semester students who programmed the Biology Lesson Planning course, which consisted of two classes, namely Class A (giving structured assignments) and Class B (giving independent assignments), with a total of 27 students in each class. Based on the results of the study, it was found that the analysis of structured task learning motivation (3.37) was lower than the independent task learning motivation (3.54) and the t-count (1.70). Based on the test criteria, it can be said that H0 is rejected because the value of the t-count is greater than the value of the t-table (1.67). It can be concluded that there is a difference in learning motivation between the structured task experimental class and the independent task experimental class.Keywords: Independent assignments, learning motivation; structured assignments

Echinoderms are one of organisms that inhabit intertidal areas which have important ecological roles in marine ecosystems, also have high economic values. The community structure and distribution pattern of Echinoderms in the intertidal area can provide an overview of the condition of the Echinoderm community. This research aims to determine the community structure of Echinoderms in various habitat types in the intertidal areas of Lakeba Beach, Baubau Town. The community structure of Echinoderms were observed using quadratic transec method. Echinoderms found were 777 individuals consisting of 18 species from 5 classes. Echinoderms were distributed in four habitat types, i. e. sandy, sand covered with seagrass, rocky, and rock covered with algae habitats. The highest abundance of Echinoderm was Ophiocoma scolopendrina (Ophiuroidea) and the lowest were Maretia planulata, Arachnoides placenta (Echinoidea), Holothuria scabra, H. leucospilota, Stichopus horrens (Holothuroidea), and Isocrinidae (Crinoidea). The species diversity of Echinoderms was categorized as moderate (H’ = 1,42180), species evenness was moderate (E = 0,49191), and no dominant species of Echinoderm community (D = 0,36601). Echinoderm community living in the intertidal area was influenced by antropogenic factors.  Echinodermata merupakan salah satu organisme yang mendiami daerah intertidal yang memiliki peran ekologis penting bagi ekosistem laut, juga memiliki nilai ekonomis yang tinggi. Struktur komunitas dan pola distribusi Echinodermata pada daerah intertidal dapat memberikan gambaran mengenai kondisi komunitas Echinodermata. Penelitian ini bertujuan untuk mengetahui struktur komunitas dan pola distribusi Echinodermata di daerah intertidal Pantai Lakeba, Kota Baubau. Struktur komunitas dan pola distribusi Echinodermata diamati menggunakan metode transek kuadrat. Echinodermata yang ditemukan berjumlah 777 individu yang terdiri atas 18 jenis dari 5 kelas. Echinodermata terdistribusi pada empat tipe habitat yaitu habitat pasir, pasir yang ditutupi lamun, batu, dan batu yang ditutupi alga. Echinodermata yang memiliki kelimpahan tertinggi adalah Ophiocoma scolopendrina (Ophiuroidea) dan kelimpahan terendah adalah Maretia planulata, Arachnoides placenta (Echinoidea), Holothuria scabra, H. leucospilota, Stichopus horrens (Holothuroidea), dan Isocrinidae (Crinoidea). Keanekaragaman jenis Echinodermata dikategorikan sedang (H’ = 1,42180), kemerataan jenis sedang (E = 0,49191) dan tidak ada jenis yang dominan dalam komunitas Echinodermata (D = 0,36601). Komunitas Echinodermata yang hidup di daerah intertidal pantai dipengaruhi oleh faktor antropogenik.