Manajemen Kinerja Sumber Daya Manusia dalam Organisasi Pendidikan

Organisasi pendidikan merupakan siklus sistemik dalam lembaga pendidikan. Di mana, setiap komponen diharapkan dapat memainkan peran terbaiknya bagi pengembangan lembaga pendidikan. Dalam konteks ini, peran sumber daya manusia dalam organisasi sangat penting, untuk itu dibutuhkan sistem pengelolaan (manajerial) terkait kinerja sumber daya manusia agar lebih terarah dan efektif. Penelitian ini bertujuan untuk mendeskripsikan manajemen kinerja sumber daya manusia dalam organisasi pendidikan. Penelitian ini menggunakan pendekatan kualitatif dengan metode studi kepustakaan. Sumber data dan bahan analisis kajian menggunakan referensi ilmiah yang diambil dari buku, artikel, prosiding atau tugas akhir (skripsi, tesis, disertasi). Hasil penelitian ini menyimpulkan bahwa manajemen kinerja sumber daya manusia dalam organisasi pendidikan terdiri dari upaya perencanaan perekrutan SDM, seleksi, pelatihan dan pengembangan, evaluasi/penilaian kinerja, kompensasi, dan sistem pemutusan hubungan kerja

SISTEM PERINGATAN DINI UNTUK MARAK ALGA MENGGUNAKAN CITRA SATELIT DI TELUK JAKARTA

Jakarta Bay is experiencing eutrophication, primarily due to nutrient inflows from agriculture, industry, and urban sources. This abundance of nutrients has led to significant algae blooms. A study using Terra and Aqua MODIS satellite data from 2004 to 2007 monitored these blooms by measuring chlorophyll-a levels. During this period, large-scale fish kills were observed directly related to the algal blooms, as evidenced by high chlorophyll-a concentrations and blooms covering more than a quarter of the bay. Interestingly, not all intense blooms resulted in massive fish kills. The study suggests that this mortality is primarily due to oxygen depletion after peak bloom periods, compounded by poor water circulation in the bay. Using satellite imagery to monitor algal blooms is a practical tool for implementing an early warning system (EWS) in Jakarta Bay. Satellite imagery has proven effective in monitoring these blooms and could help develop an early warning system in Jakarta Bay despite limitations such as cloud cover.Teluk Jakarta telah mengalami eutrofikasi, terutama disebabkan oleh masuknya nutrien dari sumber pertanian, industri, dan perkotaan. Kelimpahan nutrien ini telah menyebabkan terjadinya marak alga yang signifikan. Studi dengan menggunakan data satelit Terra dan Aqua MODIS dari tahun 2004 hingga 2007 telah memantau marak alga ini dengan mengukur tingkat klorofil-a. Selama periode ini, terjadi kematian massal ikan yang secara langsung terkait dengan peristiwa marak alga, seperti yang dibuktikan dengan tingginya konsentrasi klorofil-a dan marak alge yang menutupi lebih dari seperempat teluk. Menariknya, tidak semua marak alge yang intens mengakibatkan kematian ikan massal. Studi tersebut menunjukkan bahwa kematian ini terutama disebabkan oleh kekurangan oksigen setelah periode marak alge mencapai puncak, yang diperburuk oleh sirkulasi air yang lemah di teluk ini. Penggunaan citra satelit untuk memantau marak alga adalah alat yang praktis untuk menerapkan sistem peringatan dini (EWS) di Teluk Jakarta. Citra satelit telah terbukti efektif dalam memantau marak alga ini dan dapat membantu mengembangkan sistem peringatan dini di Teluk Jakarta meskipun terdapat keterbatasan seperti adanya penutupan awan

POLA SEBARAN HORIZONTAL DAN KERAPATAN PLANKTON Di PERAIRAN BAWEAN

The objectives of this research were to find out the horizontal distribution patterns, the density and species dominancy of plankton in Bawean waters, Gresik regency. Sampling was done using RV Baruna Jaya VIII on 29-30 April 2009. There were 12 stations for sampling, which arranged latitude 3 stations to the north and longitude 4 stations to the east with the distance of 8 and 12 miles, respectively. Water samples were collected using Kitahara net for phytoplankton and Norpac net for zooplankton by filtering from bottom to surface. The density of plankton for each station was measured base on their biovolume bases, namely settlement for phytoplankton whereas water replacement for zooplankton. Genus of plankton was identified for each station. The results showed that the highest density of phytoplankton was found in the northern part and was decreased towards the south, while the highest zooplankton was found in the middle area. The density of phytoplankton was distributed homogeneously, while zooplankton was distributed randomly. The density of biomass phytoplankton ranged from 0.294-3.985 ml/rn3 and an average wasl.598 ml/m3. The density of biomass zooplankton ranged from 0.05-0.24 ml/m3, and an average was 0.122 ml/m3. The ratio of biovolume between phytoplankton and zooplankton ranged from 3:1-31:1 with an average was 13:1. The individual density of phytoplankton ranged from 15,843 - 1,755,694 individual/m3, while zooplankton was between 861-29,362 individual/m3. In the phytoplankton was found as much as 34 genus, and there were 5 genus which their populations were abundantly, namely Caetoceros, Skeletonema, Rizosolenia, Pleurosigma and bacteriostratum with percentage of 25,34%, 24,45%, 13,84%, 10,68% and 8,10%, respectively. The biology index of phytoplankton, namely diversity (H) ranged from 1.11-2.22, uniformities (E) ranged from 0.50- 1.00, and dominancy (D) ranged from 0.16 - 0.50. in the zooplankton was found 65 genus, and there were 5 genus of their populations was abundantly, that was Ceratium, Calanus, Cetocerelia, Agalma and Fritillaria with percentage 22.26%, 17.10%, 6.96%, 6.92% and 5.21%, respectively. The diversity index of zooplankton ranged from 1.83 - 2.56, uniformities ranged from 0.791.00, and dominancy ranged from 0.12-0.23. The population forming of phytoplankton and zooplankton were very assorted and dynamic

Comprehensive analysis of harmful algal blooms in indonesia: from occurrence to impact

The occurrence and frequency of harmful algal blooms have become a significant problem in Indonesia's coastal waters since 1991. This article aims to thoroughly analyze the diversity of algal species involved in these harmful algal blooms (HABs). It highlights that some algae, such as toxic species, can produce dangerous toxins, while others, such as non-toxic algae, remain harmless. This article reviews research studies that describe the occurrence, frequency, and causative types of bloom events in several contaminated coastal regions of Indonesia. The blooms had many consequences for fisheries, the aquatic environment, the economy, and public health. Among the identified species, Pyrodinium bahamense var. compressum is known for its high toxicity. The most common taxa contributing to bloom tragedy are Chaetoceros, Noctiluca, and Skeletonema. The study recognizes that human-induced nutrient enrichment is a major and significant factor in triggering the bloom phenomena. The paper recommends various management strategies and further research initiatives to prevent and reduce the impacts of HABs in Indonesia

Resting Cyst Distribution and Molecular Identification of the Harmful Dinoflagellate Margalefidinium polykrikoides (Gymnodiniales, Dinophyceae) in Lampung Bay, Sumatra, Indonesia

Margalefidinium polykrikoides, an unarmored dinoflagellate, was suspected to be the causative agent of the harmful algal blooms – associated with massive fish mortalities – that have occurred continually in Lampung Bay, Indonesia, since the first bloom event in October 2012. In this study, after examination of the morphology of putative M. polykrikoides-like cysts sampled in bottom sediments, cyst bed distribution of this harmful species was explored in the inner bay. Sediment samples showed that resting cysts, including several morphotypes previously reported as M. polykrikoides, were most abundant on the northern coast of Lampung Bay, ranging from 20.6 to 645.6 cysts g-1 dry sediment. Molecular phylogeny inferred from LSU rDNA revealed that the so-called Mediterranean ribotype was detected in the sediment while M. polykrikoides motile cells, four-cell chain forming in bloom conditions, belonged to the American-Malaysian ribotype. Moreover, hyaline cysts, exclusively in the form of four-cell chains, were also recorded. Overall, these results unequivocally show that the species M. polykrikoides is abundantly present, in the form of vegetative cells, hyaline and resting cysts in an Indonesian area

Algal bloom,penyebabnya dan beberapa implikasinya

Algal bloom,some causes and some implications. the algal blooms or red tide that resulting mass mortality of fish and other biota are frequently occurred in coastal waters where human activities and population increase in significant. the impacts not only to marine life and environmental quality,but also impact on the fishery economic,food security and health consumer,and also psychology of the surrounding community. in some countries the impact of aquatic disaster has resulted in human fatalities after consuming fishery products. the incidence of red tide phenomenon is characterized by the appearance of other colors in the surface water such as red,red-brown or greenish depending on the causative species. in fact,the incidence of algal bloom has a connection with the amount of nutrients concentration in the waters,which sourced from human activities in the upland,domestic waste,agricultural,industrial waste,etc,which run into the water via rivers or run-off. on the other hand,the increasing eutrophication may lead to alteration of nutrients composition in the waters and can trigger the bloom of toxic species in the waters (toxic algal bloom)

The Connectivity of Nutrient Ratios on The Abundance of Phytoplankton Population In Jakarta Bay

The frequency of algal bloom’s event has been increased in Jakarta Bay, recently. Most of the bloom events were tend to be reoccurred after the rainy season. The research was conducted from 2008 until 2015 to study the linkage of nutrients and the ratios on the growth of the phytoplankton population. Collecting samples were conducted using a canonical plankton net of 20 µm mesh size, 125 cm length and 30 cm diameter of the opening mouth. The results of the study showed that the concentration of phosphate in the waters ranged from 0.01-12.5 µg/l (average 4.58 µg/l) and nitrate ranged from 0.01-15.89 µg/l (average 0.72 µg/l). The N/P ratio during the study ranging from 0.2 up to 45.4. High ratios of nutrients were mostly recorded in 2010 where the overall abundance of phytoplankton is very high. There is a strong correlation of N/P ratio with the community structure or composition of the phytoplankton population. The variability of phytoplankton abundance appears to be related to nutrient ratios of nitrate and phosphate

POLA SEBARAN HORIZONTAL DAN KERAPATAN PLANKTON DI PERAIRAN BAWEAN

The objectives of this research were to find out the horizontal distribution patterns, the density and species dominancy of plankton in Bawean waters, Gresik regency.Sampling was done using RV Baruna Jaya VIII on 29-30 April 2009. There were 12 stations for sampling, which arranged latitude 3 stations to the north and longitude 4 stations to the east with the distance of 8 and 12 miles, respectively.Watersamples were collected using Kitahara net for phytoplankton and Norpac net for zooplankton by filtering from bottom to surface. The density of plankton for each station was measured base on their biovolume bases, namely settlement for phytoplankton whereas water replacementfor zooplankton. Genus of plankton was identified for each station. The results showed that the highest density of phytoplankton was found in the northern part and was decreased towards the south, while the highest zooplankton was found in the middle area. The density of phytoplankton was distributed homogeneously, while zooplankton was distributed randomly. The density of biomass phytoplankton ranged from 0.294-3.985 ml/m3 and an average was1.598 ml/m³. The density of biomass zooplankton ranged from 0.05-0.24 ml/m³,and an average was0.122 ml/m³. The ratio of biovolume between phytoplankton and zooplankton ranged from 3:1-31:1 with an average was 13:1. The individual density of phytoplankton ranged from 15,843 - 1,755,694 individual/m3,while zooplankton was between 861-29,362 individual/m³.In the phytoplankton was found as much as 34 genus, and there were 5 genus which their populations were abundantly, namely Caetoceros, Skeletonema, Rizosolenia, Pleurosigma and bacteriostratum with percentage of 25,34%, 24,45%, 13,84%, 10,68% and 8,10%, respectively.The biology index of phytoplankton, namely diversity (H) ranged from1.11-2.22,uniformities (E) ranged from 0.50- 1.00, and dominancy (D) ranged from 0.16 - 0.50. In the zooplankton was found 65 genus, and there were 5 genus of their populations was abundantly, that was Ceratium, Calanus, Cetocerelia, Agalma and Fritillaria with percentage 22.26%,17.10%,6.96%,6.92% and 5.21%, respectively.The diversity index of zooplankton ranged from 1.83 - 2.56, uniformities ranged from 0.79- 1.00, and dominancy ranged from 0.12-0.23. The population forming of phytoplankton and zooplankton were very assorted and dynamic