scholarly journals FOOD HABITS AND FEEDING HABITS OF BARRAMUNDI FISH (Lates calcarifer Block) IN TERUSAN DALAM (INSIDE CANAL) WATERS, EAST COAST OF SOUTH SUMATERA PROVINCE

2016 ◽  
Vol 2 (2) ◽  
Author(s):  
Mohammad Rasyid Ridho ◽  
Enggar Patriono
Keyword(s):  
Food Habits ◽  
Sampling Method ◽  
East Coast ◽  
Feeding Habits ◽  
Natural Food ◽  
Relative Importance ◽  
Lates Calcarifer ◽  
Additional Food ◽  
Main Food ◽  
Importance Index

Research about the food habits and feeding habits of Barramundi (Lates calcarifer Block) in Terusan Dalam (inside canal) waters, East coast of South Sumatera Province, had been done during March to June 2012. The purpose of this research was to analyze the food habits and feeding habits of  Barramundi (Lates calcarifer Block) on Terusan Dalam (inside canal) waters, East coast of South Sumatera Province. Sampling method of the fish was purposive sampling method using Tangsi net. The results of this research showed that the number of fish from March to June totaled 31 individuals of fish. Based on the Relative Importance Index (RII), the natural food of Barramundi (Lates calcarifer Block) in March to June 2012 consisted of shrimp as the main food with the Relative Importance Index 72.37-99.51%, the fish was as the complement food with the Relative Importance Index 11.33-27.63%, and as the additional food was the worm with Relative Importance Index 0.49%.Keywords: Barramundi, food habits, feeding habits

scholarly journals Feeding habits of Cocobolo Andinoacara pulcher in the cienaga Grande de Lorica, Colombia

2016 ◽  
pp. 5189-5197
Author(s):  
Charles W Olaya-Nieto ◽  
Liquey Camargo-Herrera ◽  
Vanessa Díaz-Sajonero ◽  
Fredys F Segura-Guevara
Keyword(s):  
River Basin ◽  
Stomach Content ◽  
Feeding Habits ◽  
Frequency Of Occurrence ◽  
Relative Importance ◽  
Food Groups ◽  
Total Length ◽  
Length Relationship ◽  
Importance Index ◽  
Gut Length

ABSTRACTObjective. The feeding habits of Cocobolo (Andinoacara pulcher) in the cienaga Grande de Lorica, Sinu river basin, were studied. Materials and methods. The stomach content was analyzed using the Proportion of empty stomachs, Grade of digestion, Frequency of occurrence, numerical Frequency, Gravimetry, relative importance Index (RII) and the gut length-total length relationship. Results. 39.8% of stomachs were empty, 47.1% of preys were fresh and five food groups were identified. Vegetable remains was the most frequent group (63.8%) and the prey with greatest composition in weight (33.5%), while Rest of fishes was the most abundant group (34.7%). It was observed that in low and rising waters, fishes was the most consumed prey, while that in high and falling waters the most consumed prey was vegetable remains. Vegetable remains, detritus and fishes were food groups of secondary relative importance, while Insects and Others were circumstantial or incidental groups. Conclusions. The results achieved indicate that Cocobolo is a fish with omnivores feeding habits with a preference for fishes and vegetable remains. RESUMEN Objetivo. Se estudiaron los hábitos alimentarios de Cocobolo (Andinoacara pulcher) en la ciénaga Grande de Lorica, cuenca del río Sinú, Colombia. Materiales y Métodos. El contenido estomacal se evaluó con el Coeficiente de vacuidad, Grado de llenado, Grado de digestión, Frecuencia de ocurrencia, Frecuencia numérica, Gravimetría, Índice de importancia relativa y la relación longitud intestinal- longitud total. Resultados. El 39.8% de los estómagos se encontró vacío, el 47.1% de las presas en estado fresco y se identificaron cinco grupos alimentarios. Material vegetal fue el grupo más frecuente (63.8%) y con mayor composición por peso (33.5%), mientras que Restos de peces fue el más abundante (34.7%). Se observó que en aguas bajas y en aguas ascendentes, peces fue la presa más consumida, mientras que en aguas altas y aguas descendentes, fue material vegetal. Material vegetal, detritos y restos de peces fueron grupos alimentarios de importancia relativa secundaria, mientras que insectos y otros fueron circunstanciales o incidentales. Conclusiones. Los resultados alcanzados indican que Cocobolo es un pez de hábitos alimentarios omnívoros con preferencia por peces y material vegetal.

scholarly journals Food and feeding habits of Hemichromis fasciatus Peters, 1857 and Heterotis niloticus (Cuvier, 1829) in lake Ehuikro (Côte d’Ivoire)

2020 ◽  
Vol 13 (7) ◽  
pp. 3039-3052
Author(s):  
Akissi Nathalie Kouadio ◽  
Yao Aristide Konan ◽  
Stanislas Silvain Yao ◽  
Zeré Marius Gogbé ◽  
Gouli Gooré Bi
Keyword(s):  
Feeding Behavior ◽  
Seasonal Changes ◽  
Ivory Coast ◽  
Ecological Niche ◽  
Feeding Habits ◽  
Stomach Contents ◽  
Relative Importance ◽  
Mineral Fraction ◽  
Importance Index ◽  
Food And Feeding

The main of this study was to compare the diet of Hemichromis fasciatus (Perciformes, Cichlidae) and Heterotis niloticus (Osteoglossiformes, Arapaimidae) in Lake Ehuikro (Bongouanou, Ivory Coast). Ffish were caught using gillnets between July 2017 and June 2018. A total of 206 stomachs of H. fasciatus and 71 stomachs of H. niloticus were examined and the relative importance index (RI) was used to analyze the importance of different items. Results indicate that both species are omnivorous tending towards insectivorous with a predominance of Chaoboridae. Despite the overlap obtained in diet of both species (Cλ = 0.89), the ecological niche was small and wide in H. fasciatus and H. niloticus, respectively. Dietary variations indicated ontogenic changes in the first specie and seasonal changes in the second specie. Proportion of mineral fraction observed in stomach contents suggests pelagic feeding behavior in H. fasciatus and benthic behavior in H. niloticus.Keywords: Diet, fish, omnivorous, insectivorous, ecological niche.

scholarly journals Study on food habits of herring (Clupea fimbriata) in Ujung Pangkah Waters, East Java

2010 ◽  
Vol 9 (1) ◽  
pp. 38
Author(s):  
. Sulistiono ◽  
M. Robiyanto ◽  
M. Brodjo ◽  
C.P. Simanjuntak
Keyword(s):  
Key Words ◽  
Food Habits ◽  
Food Habit ◽  
Complementary Food ◽  
Female Fish ◽  
Additional Food ◽  
Fishery Resource ◽  
Male And Female ◽  
Main Food ◽  
Gill Net

<p>Herring <em>C</em><em>lupea fibriata</em> is an important fishery resource in Indonesia. This species is found in large number in Ujung Pangkah Waters. This study aims to investigate food habits of the species. The study was done from July to December 2005, in Ujung Pangkah Waters (Gresik, East Java Province), using samples of 313 individuals consisting of 147 males and 166 female fish, collected by gill net and fix net. Study result shows that food habit of the herring was consisted of Bacillariophyceae (7 genera), Crustacea (3 genera), Ciliate (2 genera), Dynophycea (2 genera), and detritus. Bacillariophyceae is a main food, Crustacea is additional food, and Ciliata and detritus is complementary food both for male and female fish. Electivity indeks of the fish varied from -0,99 to 0,45 (male) and -0,98 to 0,51 (female). According to the index, <em>Skeletonema</em> and <em>Calanus </em>are the dominant food of the fish collected in the Ujung Pangkah Waters.</p> <p>Key words:  Food habits, herring  (<em>Clupea fibriata</em>), Ujung Pangkah, Gresik</p> <p> </p> <p>ABSTRAK</p> <p>Ikan tembang (<em>C</em><em>lupea fibriata</em>) merupakan salah satu sumberdaya perikanan yang cukup penting di Indonesia. Jenis ikan ini cukup banyak ditemukan di perairan Ujung Pangkah. Penelitian bertujuan untuk menganalisis makanan ikan tembang yang tertangkap di daerah tersebut.  Penelitian dilaksanakan sejak Juli sampai Desember 2005, di daerah Perairan Ujung Pangkah (Gresik, Jawa Timur), dengan pengambilan sampel ikan sebanyak 313 ekor yang terdiri atas 147 ekor jantan dan 166 ekor betina, menggunakan alat tangkap jaring insang (<em>gill net</em>) dan jeger (<em>fix net</em>). Hasil pengamatan menunjukkan bahwa ikan tembang memiliki makanan yang terdiri atas Bacillariophyceae (7 jenis), Crustacea (3 jenis), Ciliata (2 jenis), Dynophycea (2 jenis), dan detritus.  Kelompok Bacillariophyceae merupakan kelompok makanan utama, Crustacea merupakan makanan pelengkap, dan Ciliata dan detritus merupakan makanan tambahan baik pada ikan jantan maupun ikan betina.  Indeks pilihan makanan ikan tembang berkisar antara -0,99 sampai 0,45 (pada ikan jantan) dan -0,98 sampai 0,51 (pada ikan betina). Berdasarkan  indeks tersebut, <em>Skeletonema</em> dan <em>Calanus </em>merupakan jenis yang banyak dimakan ikan tembang di perairan Ujung Pangkah.</p> <p>Kata kunci:  Makanan, ikan tembang (<em>Clupea fibriata</em>), Ujung Pangkah, Gresik</p>

Analisis Isi Lambung Ikan Selais Terang Bulan (Kryptopterus bicirrhis, Valenciennes 1840) Di Desa Rantau Kasih Sungai Kampar Kiri Propinsi Riau

Biospecies ◽  
2018 ◽  
pp. 57-63
Author(s):  
Ermi Yeni ◽  
Roza Elvyra
Keyword(s):  
Content Analysis ◽  
Gut Content Analysis ◽  
Gut Content ◽  
Additional Food ◽  
Male And Female ◽  
Carnivorous Fish ◽  
Supplementary Food ◽  
Main Food

The study on gut content of Selais Terang Bulan fish (Kryptopterus bicirrhis) in Rantau Kasih village Kampar Kiri river was conducted from Februari- April 2017. The purpose of this study was to know about gut content of Selais Terang Bulan fish which was categorized as main food, supplementary food and additional food. The analysis is done based on the instruction of Natardjan and Jhingran (1961). The gut content was analized using the Index of preponderance.  The result revealed that  the main food of  Selais Terang Bulan fish in Rantau Kasih village is adult Arthropoda with IP value (78.85%), and supplementary food is caterpillar (25.15%). Male and female fishes at have main food of adult Arthropoda with different percentages are (82.81%) male and female (71.32%). Based on the gut content analysis of Selais Terang Bulan fish was a carnivorous fish.

Causes of Delay in Budget Hotel Construction Projects

2014 ◽  
Vol 5 (3) ◽  
pp. 49-63 ◽  
Author(s):  
Milind T. Phadtare
Keyword(s):  
Construction Projects ◽  
Business Group ◽  
Relative Importance ◽  
Joint Effort ◽  
Indian Context ◽  
Importance Index ◽  
Project Participants ◽  
Causes Of Delays ◽  
Industry Training

Delay in construction projects is a universal phenomenon. However, the topic is not adequately studied in the Indian context. This paper attempts to identify the causes of delays in construction of budget hotels in India and suggest remedies to avoid some delays. A business group constructing budget hotels across the country is approached for this study. Forty causes of delay have been identified and Relative Importance Index was calculated. The contribution of each category of causes of delay to overall delay in the projects was computed. Remedies such as, joint effort of the participants of the industry, training, coordination between project participants and project timing and scheduling are suggested and validated.

A benchmarking approach to the progress of green materials and systems’ use in the UAE construction industry

2016 ◽  
Vol 13 (4) ◽  
pp. 315-327 ◽  
Author(s):  
Aly Elgayar ◽  
Salwa Mamoun Beheiry ◽  
Alaa Jabbar ◽  
Hamad Al Ansari
Keyword(s):  
Construction Industry ◽  
United Arab Emirates ◽  
Design Methodology ◽  
Construction Materials ◽  
Relative Importance ◽  
Content Type ◽  
The Past ◽  
Green Materials ◽  
Importance Index ◽  
Regulatory Guidelines

Purpose Over the past decade, the United Arab Emirates (UAE) introduced several green regulatory guidelines, federal decrees, and a considerable number of environmentally friendly initiatives. Hence, the purpose of this paper is to investigate the top green materials and systems used currently in the UAE construction industry as per the new laws dictate as well as see if professionals are switching over to incorporate more green materials, systems, and/or designs. Design/methodology/approach The work involved reviewing internationally popular green materials and systems for construction, developing a questionnaire based on the literature review, surveying professionals in the seven UAE emirates, and ranking the findings based on the relative importance index. Findings Findings found the top used green materials and system in the UAE’s construction industry. As well as identified that there is a communication gap between the design and implementation phases that is possibly hindering the use of more green materials and systems. Originality/value This study sets a baseline to measure the UAE’s progress over the coming years in terms of integrating more green construction materials, systems, methodologies, and trends.

scholarly journals Insights of project managers into the problems in project management

2016 ◽  
Vol 16 (1) ◽  
pp. 90-103 ◽  
Author(s):  
Peter Vincent Livesey
Keyword(s):  
Project Management ◽  
Delphi Study ◽  
Soft Skills ◽  
Project Managers ◽  
Delphi Panel ◽  
Relative Importance ◽  
Team Management ◽  
Management Skills ◽  
Hard Skills ◽  
Importance Index

A Delphi study using project managers who had managed projects in excess of $500 million was used to confirm the significance and frequency of problems resulting from the nature of projects. Using the results obtained from the Delphi study a ranking of the problems experienced in these projects was obtained by calculating a Relative Importance Index. Additionally, the Delphi panel members were asked their views concerning the need for traditional project management skills (hard skills) and team management skills (soft skills) as project size increased from below $50 million to over $500 million. A substantial increase in the need for both skills was indicated with the increase in the need for soft skills being the most significant.

scholarly journals Predicting Temperature Shifts off the U.S. East Coast

Eos ◽  
2016 ◽  
Vol 97 ◽  
Author(s):  
Sarah Stanley
Keyword(s):  
East Coast ◽  
Relative Importance ◽  
Ocean Temperature ◽  
Middle Atlantic Bight ◽  
Atmospheric Processes ◽  
Middle Atlantic ◽  
New Research ◽  
The U.S

New research reveals the relative importance of oceanic and atmospheric processes in year-to-year changes in ocean temperature along the Middle Atlantic Bight.

scholarly journals Faktor Penglibatan Pelajar dalam Aktiviti Bukan Akademik anjuran Universiti

2020 ◽  
Vol 5 (11) ◽  
pp. 85-94
Author(s):  
Nazriah Rasul ◽  
Rafiza Mohamed ◽  
Siti Nurhuda Abd. Wahid ◽  
Yusmady Md. Junus ◽  
Rosmiza Awang Noh
Keyword(s):  
Relative Importance ◽  
Kuala Lumpur ◽  
Importance Index

Aktiviti-aktiviti yang dianjurkan di universiti tidak kira akademik atau bukan akademik haruslah boleh membentuk pelajar yang seimbang bukan sahaja dari aspek jasmani dan emosi, malah dari aspek rohani dan intelek juga. Walau bagaimanapun, trend terkini pelajar adalah kurang melibatkan diri dalam aktiviti-aktiviti anjuran universiti Oleh itu kajian ini bertujuan untuk mengenal pasti faktor penglibatan pelajar dalam aktiviti bukan akademik anjuran universiti dan mengenal pasti langkah-langkah yang boleh diambil supaya lebih ramai pelajar melibatkan diri dalam aktiviti bukan akademik anjuran universiti. Ia dijalankan terhadap 888 orang responden daripada 5,534 pelajar diploma di Universiti Teknologi Malaysia Kuala Lumpur (UTMKL). Berdasarkan kepada keputusan analisa menggunakan kaedah Relative Importance Index (RII), faktor pengaruh rakan telah dikenal pasti sebagai faktor yang paling mempengaruhi penglibatan pelajar terhadap aktiviti bukan akademik anjuran universiti iaitu dengan nilai RII sebanyak 0.79. Manakala faktor yang paling kurang mempengaruhi pelajar menyertai aktiviti bukan akademik anjuran universiti ialah faktor personaliti pelajar dengan nilai RII sebanyak 0.59. Maklum balas daripada pelajar berkenaan dengan langkah-langkah yang boleh diambil supaya lebih ramai pelajar melibatkan diri dalam aktiviti bukan akademik anjuran universiti dianalisis menggunakan kaedah Analisa Bertema. Maklum balas pelajar telah dikelaskan kepada 6 tema iaitu penambahan aktiviti yang aktif dan menarik, penambahan infrastruktur oleh universiti, menambah baik saluran komunikasi pelaksanaan aktiviti, merancang pelaksanaan aktiviti, sokongan universiti dalam bentuk kewangan dan memberikan galakan dan motivasi. Hasil daripada kajian ini boleh diguna pakai dalam membuat perancangan aktiviti akademik di universiti bagi menarik lebih ramai pelajar melibatkan diri. Kajian seperti ini harus dijalankan pada masa akan datang. Perincian mengikut jenis aktiviti bukan akademik dan perbandingan mengikut jantina terhadap faktor-faktor yang mempengaruhi penglibatan pelajar terhadap aktiviti bukan akademik dapat membantu dalam menjelaskan dan memperincikan lagi penglibatan para pelajar dengan lebih menyeluruh.

scholarly journals Copper Accumulation by Avicennia marina at Mangrove Eco-forest in Wonorejo, Surabaya

2020 ◽  
Vol 202 ◽  
pp. 05004
Author(s):  
Harmin Sulistiyaning Titah ◽  
Herman Pratikno
Keyword(s):  
Atomic Absorption ◽  
Brackish Water ◽  
Sampling Method ◽  
Bioconcentration Factor ◽  
East Coast ◽  
Avicennia Marina ◽  
Copper Accumulation ◽  
Inorganic Pollutants ◽  
Equation Formulation ◽  
Cu Accumulation

Large quantities of wastewater from industries and households were released to Wonorejo river in Surabaya East Coast area. The concentration of Cu at the Wonorejo Estuary reached 3.186 mg/L at brackish water in 2009 One of the inorganic pollutants that can be removed by mangrove is copper (Cu). The purpose of this research was to determine the potency of Cu accumulation by Avicennia marina that was grown for ten years at Wonorejo Estuary. The sampling activities were conducted using a transect quadrat sampling method with a 10x10 m dimension. There were ten points of location sampling, the sediment and root of A. marina samples were collected in those location sampling. All samples of sediment and root were extracted before those samples were analyzed using an atomic absorption spectrophotometer (AAS). The calculation of the Bioconcentration Factor (BCF) was conducted using a equation formulation. The results showed that concentration Cu in sediment was 27 mg/kg until to 150 mg/kg. The Cu accumulation by roots of A. marina reached 53 mg/kg until to 128 mg/kg. The BCF value in A. marina were 0.91 to 3.22 In conclusion, A. marina showed potential as a hyperaccumulator for Cu.

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