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All Journal e-Journal BUDIDAYA PERAIRAN Indonesian Journal of Coastal and Marine Studies
Kedis Lengka
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science

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Teknik Budidaya Lobster (Cherax quadricarinatus) Air Tawar di Balai Budidaya Air Tawar (BBAT) Tatelu Lengka, Kedis; Kolopita, Magdalena
e-Journal BUDIDAYA PERAIRAN Vol 1, No 1 (2013): Vol.1 No. 1 Januari 2013
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.1.1.2013.726

Abstract

The aimed of this field practice was to study the hatchery technique of freshwater lobster at Board of Freshwater Aquaculture, Tatelu (BBAT). During this practice, all the hatchery activities were conducted according to BBAT standar procedures. The number of broodstocks used in this practice was 225 females and 53 males. These broodstocks were propagated in mating pond for two weeks. Broodstocks having eggs were moved into hatching tank individually. Afterward, broodstock was removed into another tank while larvae were kept in hatching tank for 10 days. Larvae were cultivated in concrete tank for one month. Data collected included surviral rate, weight and length of lobster, and water quality. Survival rate of larvae was 50%. Water quality in broodstock tank was temperature 28,4 0C, pH 7,5; DO 5,6 mg/l, in hatching pond was temperature 27,23 0C, pH 7,5; DO 5,2 mg/l. In general, lobster hatchery consisted of tank preparation, boroodstock culture, broodstock seletion, hatching, larvae rearing, feeding, water quality contol, pest and disease prevention, harvest. Key Words: Hatchery, lobster, broodstocks.
Peningkatan Respon Imun Non Spesik Ikan Mas (Cyprinus carpio L) Melalui Pemberian Bawang Putih (Allium Sativum) Lengka, Kedis; Manoppo, Henky; Kolopita, Magdalena E.F.
e-Journal BUDIDAYA PERAIRAN Vol 1, No 2 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.1.2.2013.1912

Abstract

ABSTRACT This research aimed to determine the proper dose of white onion (Allium sativum) powder to stimulate the nonspecific immune response and growth of carp (Cyprinus carpio L). Fish (length 8-12 cm; weight 9.37 g in average) were obtained from BBAT Tatelu (Freshwater Aquaculture Board). After acclimatized in 1000-l fibre tank for two weeks, fish were introduced to 15 glass aquaria (80x40x40 cm) equiped with aeration at a density of 15 fish/aquarium. Fish were fed diet supplemented with white onion powder at five different doses (0, 10, 20, 30 and 40 g/kg diet), twice daily at 5%bw. Data collected included total leucocyte count (TLC), phagocytosis activity and growth of fish. Results showed that after four weeks of feeding, supplementation of white onion powder at 30 g/kg diet was effective to enhance nonspecific immune response and growth of carp. Keywords: Allium sativum, immune response, total leucocyte count, phagocytosis activity
Conservation and Rehabilitation of River Aquatic Resources Affected by Municipal Waste Cahyono, Indra; Sugihastira, Sugihastira; Tatangin, Sumirna P.; Lengka, Kedis; Hasrul, Hasrul
Indonesian Journal of Coastal and Marine Studies Volume 1, Issue 3, Desember 2025
Publisher : LPPM Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/ijcms.v1i3.101

Abstract

Urban activities are one of the main factors that put significant pressure on river ecosystems through the disposal of domestic waste, industrial waste, and surface runoff that carry various types of pollutants, along with population growth, increased economic activity, and uncontrolled land-use changes. These conditions have an impact on the decline in water quality which is characterized by an increase in the load of organic matter, nutrients, and harmful substances, thereby triggering the degradation of river habitats in the form of excessive sedimentation, damage to riparian vegetation, and changes in the physical structure of river channels, which ultimately lead to a decrease in aquatic biodiversity, both in terms of number and species composition. Many aquatic organisms, such as fish and macrozoobentos, are becoming increasingly vulnerable to pollution and habitat loss, resulting in population declines and even local extinctions. Based on these conditions, this article aims to examine the concept of conservation and rehabilitation of river aquatic resources affected by urban waste through a national literature review approach. The method used is a literature study of Indonesian scientific journals, reference books, and official government documents related to environmental and water resources management. The results of the study show that urban river conservation and rehabilitation efforts require an integrated approach that includes pollution control through effective waste management, restoration of river and riparian habitats, and sustainable management of watersheds, supported by strong environmental policies, consistent law enforcement, and active community participation to ensure the sustainability of the ecological function of rivers
Co-Authors Cahyono, Indra Hasrul Hasrul, Hasrul Henky Manoppo Magdalena E.F. Kolopita Magdalena Kolopita Sugihastira, Sugihastira Tatangin, Sumirna P.