Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

7.461

P-Index

This Author published in this journals

All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA METANA Journal of Oceanography Journal of Marine Research BIOTROPIA - The Southeast Asian Journal of Tropical Biology Jurnal Kelautan Tropis JMM (Jurnal Masyarakat Mandiri) JFM (Jurnal Farmasi Malahayati) Journal of Tropical Marine Science Journal of Research in Social Science and Humanities J-CEKI

Widianingsih Widianingsih

Department Of Marine Science, Faculty Of Fisheries And Marine Sciences, Diponegoro University

Author-ID : 415420

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Medicine & Pharmacology Social Sciences Veterinary Other

Published : 78 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4 5

PENGARUH PEMBERIAN PAKAN ALAMI YANG BERBEDA TERHADAP PERTUMBUHAN KEPITING SOKA DI TAMBAK DESA MANGUNHARJO KECAMATAN TUGU Wicaksono, Deki Lukman; Zainuri, Muhammad; Widianingsih, Widianingsih
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Kepiting Bakau (Scylla serrata ForsskÃ¥l, 1775) adalah salah satu jenis komoditas perikanan yang menjanjikan untuk dibudidayakan dan memiliki nilai ekonomis yang tinggi. Untuk meningkatkan nilai ekonomis tersebut diperlukan diversifikasi produk salah satunya yaitu kepiting dengan cangkang yang lunak (soft Karapas/soka). Kepiting Soka (Soft Karapas) dihasilkan dari kepiting yang mengalami molting atau pergantian kulit sebelum kulit yang baru mengeras. Faktor eksternal yang mempengaruhi molting antara lain kualitas air dan ketersediaan pakan. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pakan alami yang berbeda terhadap pertumbuhan Kepiting Soka di pertambakan Desa Mangunharjo Kecamatan Tugu Kota Semarang. Penelitian ini dilaksanakan pada bulan November sampai DesemberÂ tahun 2013 di tambak Desa Mangunharjo Kecamatan Tugu Kota Semarang. Kepiting bakau yang digunakan dalam penelitian berjumlah 27 ekor. Penelitian ini dilakukan dengan menggunakan metode eksperimental terapan. Hasil penelitian menunjukkan bahwa pemberian berbagai jenis pakan alami memberikan pengaruh sangat nyata (F hitung > F tabel 0,01) terhadap laju pertumbuhan spesifik (SGR) kepiting bakau setelah molting/Kepiting Soka (Soft Karapas). Laju pertumbuhan spesifik tertinggi dicapai oleh kepiting bakau yang diberi pakan ikan rucah kuniran (1,05Â±012 % per hari), dan berbeda sangat nyata (nilai selisih perlakuan > BNT 0,01) dengan pakan cumi-cumi (0,58Â±0,05 % per hari) dan berbeda nyata (nilai selisih perlakuan > BNT 0,05) dengan pakan kepiting wideng (0,91Â±0,20 % per hari).

Analisis Imposeks pada Keong Macan (Babylonia spirata spirata) Sebagai Bioindikator Cemaran Tributyltin di Pelabuhan Tanjung Mas Semarang Kusumastuti, Retno; Widianingsih, Widianingsih; Tri Nuraini, Ria Azizah
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

A biondicator approach in knowing the possible contamination of Tributyltin in the water of the Port of Tanjung Mas Semarang study has been carried out analysis imposex the tiger snail (B. spirata spirata). During April-Mei 2013, a total of 127 of the tiger snail were collected from study areas. Analysis on male sexual organs characteristics in female of the tiger snail indicated the extensive imposex phenomenom in study areas with frequency of imposex in population of the tiger snail in the Port of Tanjung Mas Semarang up to 50,84% where size of pseudopenis in female imposex of the tiger snail (Â± 3-10 mm) with a value of Relative Penis Size Index 93,172% with sex ratio between male of the tiger snail and female is 1:3.

Struktur Komunitas Makrozoobenthos di Perairan Wilayah Morosari Desa Bedono Kecamatan Sayung Demak Ulfah, Yulia; Widianingsih, Widianingsih; Zainuri, Muhammad
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

The pond area of Bedono waters become a shallow water, due to the influence of high tide (rob). This condition affect the macrozoobenthos, one of the animals that live in the area. The objective of this research is to look for the macrozoobenthos community structure of in the Region Morosari Waters, Bedono District of Sayung, Demak. Twenty five polychaeta species were found in this research, 7 species of bivalves, 6 species of gastropods and 1 species of crustacean, with abundances ranging between 36-1331 ind/m2 with diversity index value (H ') in each research ranged from 2.95 (moderate diversity level) to 0.83 (low diversity level), with evennes index (e) ranged from 0.46 (moderate evennes index) to 1.00 (high evennes index). Domination index (C) ranged from 0.15 (this value shows that no domination index) to 0.69 (this value shows that domination index).

Stimulasi Reproduksi Aseksual Pada Stichopus horrens dan Stichopus vastus di Perairan Pulau Karimunjawa, Kabupaten Jepara Hermawan, Hermawan; Widianingsih, Widianingsih; Hartati, Retno
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Sexual reproduction on trepang has many constraint than asexual reproduction, such as fertilization success relies on broodstock number in nature and water conditions as a habitat for trepang. Therefore, research on production of trepang seed in needed. The aim of this research were to stimulate and observe fission ability and regeneration of trepang S. horrens and S. vastus (Family Stichopodidae) as well as determine survival rate of individual fission results. This research was conducted during Octoberâ€“December 2011 using field experimental method and analyzed descriptively. Stimulaton fission on this study conducted by tying 1/3 of anterior part of trepang body using a rubber band. Result showed that S. horrens dan S. vastus can be stimulated by fission. In both species, smaller group showed easier and quicker fission, but large group has higher regeneration. Posterior parts of the both species of sea cucumbers succesfully formed a new mouth complex. Posterior parts have higher survival rate than anterior.

Pengaruh Perbedaan Periode Aerasi Karbondioksida terhadap Laju Pertumbuhan dan Kadar Total Lipid pada Kultur Nannochloropsis oculata Norbawa, Puji; Yudiati, Ervia; Widianingsih, Widianingsih
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

N. oculata is commonly used as a natural food in larviculture. Due to the fact on its highly lipid content, N. oculata is recently becoming one of a good candidate for a source of alternative energy. Microalgae utilizes CO2 during photosynthesis. This fact will lead and used this microalgaeas a carbondioxide degradator. Providing of carbon dioxide aeration is expected to increase the rate of growth of N. oculata as well as total lipid production.This research aimed to determine the effect of different periods on carbondioxide aerationon the growth rate and total lipid production in N. oculata culture.The results showed that different time on carbondioxide aeration was significantly different (P < 0.05) on the average growth rate as well as total lipid production. Carbondioxide aeration treatment for 3 minutes have the highest average growth rate which is0,574 doubling/ day. While the average growth rate at treatment aeration for 4 minutes almost equal to the control i.e. 0,484 doubling/ day and 0,462 doubling/ day. The highest percentage of total lipid production has reached in 4 minutes carbondioxide aeration treatment (80.58%-dw). Furthermore, the lipid production on 1 minute, 2 minutes aeration time and control were 65.98%-dw, 65.77%-dw and 64.98%-dw, respectively. The treatment with carbondioxide aeration for 3 min was the lowest (39.72%-dw). Based on these results it can be concluded that carbondioxide aeration for 3 minutes increased the growth rate of N. oculata. However, the incrementon growth ratewere not accompanied withthe incrementon total lipid production.

KOMPOSISI DAN KELIMPAHAN GASTROPODA DI VEGETASI MANGROVE KELURAHAN TUGUREJO, KECAMATAN TUGU, KOTA SEMARANG Haryoardyantoro, Seto; Hartati, Retno; Widianingsih, Widianingsih
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Mangrove forest is one of the unique natural ecosystems with high productivity. That comes from organic detritus or litter fall which is essential nutrient sources for organism souch as fish and inverterbrates, one of which is gastropod. The purpose of this study was to determine the composition and abundance of gastropods found in mangrove vegetation Tugurejo Village, District Tugu, Semarang. This study was conducted in September 2011-March 2012. This study material is all gastropods found at the sites. Research consists of 4 stations and samples were taken with using transek (1 x 1) m2 in 3 sub stations. The research revealed that there were 11 species of gastropod belonged to 3 families, i.e. C.rithidea cingulata cingulata, Cerithidea sp.1, Cerithidea sp.2, C. quadrata, T. telescopium, Terebralia palustris (Potamididae), Littorina articulata, L. carinifera, Littorina pallescense (Littorinidae), and Sphaerassiminea miniata (Assiminidae). The species most frequently found was C. cingulata cingulata and T. telescopium. While most species rarely found is C. quadrata. The highest abundance average value was found at Station C which was dominated by Avicennia marina. The diversity index (H ') at Station A and B was low, while at Station C and D was moderate. The Uniformity Index (e) at Station A and B was low but at Station C and D was high and moderate. There was species dominance is Cerithidea cingulata cingulata at Station C.

KOMPOSISI DAN KELIMPAHAN PLANKTON DI PERAIRAN PULAU GUSUNG KEPULAUAN SELAYAR SULAWESI SELATAN Afif, Abdullah; Widianingsih, Widianingsih; Hartati, Retno
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Plankton adalah penyusun dasar dalam ekosistem perairan. plankton dapat dibedakan menjadi fitoplankton dan zooplankton. Tujuan dari penelitian ini adalah untuk mengetahui komposisi, kelimpahan, indeks keanekaragaman, indeks keseragaman, indeks dominansi fitoplankton dan zooplankton di perairan Pulau Gusung, Kepulauan Selayar, Sulawesi Selatan. Metode yang digunakan adalah diskriptif eksploratif. Pengambilan sampel dilakukan pada 5 Oktober 2013 pada 5 stasiun yang merupakan kawasan penangkapan ikan karang. Sampel fitoplankton diambil secara pasif dengan menyaring air sebanyak 100 L. Sampel zooplankton diambil secara aktif dengan menyaring air secara horisontal dan di tarik perahu 100 m.Penelitian menunjukan fitoplankton ditemukan 2 kelas yaitu Bacillariophyceae (14 genus), dan Dinophycea (2 genus). Kelimpahan berkisar antara 42.000-92.000 sel/l (kelimpahan sedang) genus dengan kelimpahan tertinggi Rhizosolenia. Indeks keanekaragaman 1,539-1,761 (sedang), indeks keseragaman 0,773-0,889 (tinggi) dan indeks dominansi 0,111-0,227 (tidak ada dominansi). Zooplankton ditemukan 7 filum yaitu Arthopoda (15 genus dari 3 kelas), Cnidaria (1 genus dari 1 kelas), Chaetognata (1 genus dari 1 kelas), Protozoa (1 genus dari 1 kelas), Annelida (3 genus dari 1 kelas), Mollusca (4 genus dari 2 kelas), Chordata (1 kelas). Kelimpahan berkisar antara 2.240 - 4.880 ind/l (kesuburan sedang) genus dengan kelimpahan tertinggi Limacina. Indeks keanekaragaman 2,411-3,303 (sedang-tinggi), indeks keseragaman 0,740-0,908 (tinggi) dan indeks dominansi 0,092-0,260 (tidak ada dominansi).

Densitas dan Kandungan Total Lipid Mikroalga Spirulina platensis Yang Dikultur pada Tingkatan Perbedaan Fotoperiod Manullang, Cristiana; Widianingsih, Widianingsih; Endrawati, Hadi
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Spirulina platensis is belong to divisi of Cyanophyta which has ability for good adaption in fluctuativ condition where environment factors can influent the composisition of nutrion (lipid, protein, carbohydrate). Lipid has function for fatty acid resources, vitamins and for bioenergy resources. This research aims to know influence of photoperiod with density and total lipid microalga Spirulina platensis which is has been cultured in different photoperiod as a purpose. This research uses complete random plan and treatment of photoperiod 4 hours light 20 hours dark, 8 hours ligth 16 hours dark, 12 hours light 12 hours dark, 24 hours light. The results shows that the highest density of S.platensis on experiment 24 hours light is 1591Â± 16 x 103 sinusoidal/mL and lowest density on photoperiod 4 hours light 20 hours dark 1087 Â± 62 x 103 sinusoidal/mL while higest total lipid amount presentation of lipid on photoperiod 4 hours light 20 hours dark 46,08 Â±27,93 %-dw and the total lipid 24 hours light treatment is 24,76 Â±5,23 %-dw.

Analisis Daya Dukung Kualitas Air Untuk Kesesuaian Wisata Di Pantai Karang Jahe, Rembang Kurniawati, Fitri; Pratikto, Ibnu; Widianingsih, Widianingsih
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Pantai Karang Jahe merupakan salah satu destinasi wisata baru yang mulaiÂ menjadi tujuan wisata Â di Jawa Tengah. Sebagai tempat wisata Â baru, Pantai Karang Jahe memerlukan pengembangan dalam upaya menarik wisatawan untuk berkunjung. Penelitian ini bertujuan untuk mengkaji kesesuaian dan daya dukung wisataÂ serta Â mengkaji potensi daya tarik wisata Pantai Karang Jahe, Rembang, Jawa Tengah. Penelitian dilaksanakan pada bulan Januari-Februari 2019. Penelitian menggunakan metode survei dan penentuan lokasi dipilih dengan menggunakan metode purposive sampling,. Pada Penelitian ini dilakukan analisa Indek Kesesuaian Wisata (IKW)Â dan analisa Daya Dukung Kawasan (DKK).Â analisis data kesesuaian kawasan menggunakan rumus IKW= [ Ni / Nmaks] x 100 % dan analisis daya dukung kawasan Bertdasarkan pengamatan diperoleh hasil bahwa nilai IKW untuk rekreasi pantai pada stasiun 1, 2 dan 3 tergolong sangat sesuai (S1) dengan nilai 88,88%; 91,94%; 84,72%. Â Nilai Daya Dukung Kawasan (DDK) yaitu kegiatan rekreasi pantai dengan luas 1200 m2 sebesar 96 orang/ hari, kegiatan berenang dengan luas 1100 m2 dapat menampung 88 orang/ hari, dan kegiatan bermain dengan luas 1000 m2 dapat menampung 80 orang/ hari. Berdasarkan hasilÂ analisa IKW dan DDK dapat disimpulkan bahwa Â Pantai Karang Jahe sangat sesuai untuk kegiatan wisata pantai.Â Karang Jahe Beach is one of the new tourist destinations that is starting to become a tourist destination in Central Java. As a new tourist spot, Karang Jahe Beach requires development in an effort to attract tourists to visit. This study aims to examine the suitability and carrying capacity of tourism and examine the potential of the tourist attraction of Karang Jahe Beach, Rembang, Central Java. The study was conducted in January-February 2019. The study used a survey method and the location was chosen using the purposive sampling method. In this study an analysis of the Tourism Suitability Index (IKW) and the Regional Carrying Capacity (DKK) analysis were conducted. Based on observations, the results show that the IKW value for beach recreation at stations 1, 2 and 3 is classified as very suitable (S1) with a value of 88.88%; 91.94%; 84.72%. The carrying capacity of the Region (DDK) is beach recreation activities with an area of 1200 m2 totaling 96 people / day, swimming activities with an area of 1100 m2 can accommodate 88 people / day, and play activities with an area of 1000 m2 can accommodate 80 people / day. Based on the results of IKW and DDK analysis, it can be concluded that Karang Ginger Beach is very suitable for beach tourism activities.Â

Kemampuan Fission Teripang Holothuria edulis dan Holothuria leucospilota (Holothuridae) Ukuran Yang Berbeda Di Kepulauan Karimunjawa Karim, Rafsanjani A.; Hartati, Retno; Widianingsih, Widianingsih
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Sea cucumber is one of the important natural resources of Karimunjawa Islands. Because it has a high economic value, so fishermen exploit excessively it may reduce the population. Naturally sea cucumbers are able to reproduce asexually by fission process (division). This study aimed to determine the ability of fission and regeneration of sea cucumber Holothuria edulis and Holothuria leucospilota having different body sizes. The research was conducted in October-December 2011, in Karimunjawa waters. Jepara. Stimulation of fission carried out by binding sea cucumbers with a rubber band at 1/3 position of the anterior part. The results showed that the sea cucumber H. edulis and H. leucospilota successfully split at the 24. The difference in the size of cucumbers affect the fission time, while the intensity of regeneration of bigger sea cucumbers has higher value than a small one. The rate of fission of H. edulis and H. leucospilota 95-100%. Regeneration intensity of bigger H. edulis and H. leucospilota are higher than the small size. Posterior part of the body has higher survival rate is than the anterior.

Co-Authors Abdul Hadi Abdullah Afif Abidin Nur II Achmad Muhajir Adi Santoso Agus Indarjo Agus Subagio Agus Trianto Aini, Salsabila Quratu Aldhian Triatmojo Aldi Rivaldy Maulana Ali Djunaedi Ali Djunaedi Altysia Putriany Ambariyanto Ambariyanto Anak Agung Istri Sri Wiadnyani Annisa Fadillah Antonius Budi Susanto Anuwat Nateewathana Apriliani, Seka Indah Ari B Abdulah Aris Ismanto Arumning T. Fauziah Azhari Nourma Dewi Bagus Enggal Prakoso Broto Wisnu RTD Broto, R. T.D Wisnu Cantika Elistyowati Andanar Chamidy, Ardian Nurrasyid Chrisna Adhi Suryono Christin Manulang Cristiana Manullang Cristiana Manullang Cristiana Manullang Dedi Nugroho Deki Lukman Wicaksono Delianis Pringgenies Denny Nugroho Sugianto Donna Nur'Aurelya Mahardhika Dwi Haryanti Eddy Yusuf, Eddy Edy Supriyo Edy Supriyo Edy Supriyo ELza Lusia Agus Emia Sayniri Sembiring Endah Sari Endang Supriyantini Ervia Yudiati Farmasita B, Rizky Farmasita Budiastuti, Rizky Fathorrahman Fauzan, Rianda Febriana Banun Fitrianti Fitri Kurniawati Fitri Kurniawati Fitriyan, Jodhi Kusumayudha Frijona Fabiola Lokollo Ginzel, Fanny Iriany H. Endrawati Hadi Endrawati Hayati, Amaliya Tsiqotul Hendrik Surya Bahar Hermawan Hermawan Hermawan Hermawan Hermin Pancasakti Kusumaningrum Hilal M Ibnu Pratikto Imam Misbach Imam Mishbach Indras Marhaendrajaya Irma Kusumadewi Irwani Irwani Ita Riniatsih Ita Widowati Jelita Rahma Hidayati Johannes Hutabarat Jusup Suprijanto Ken Suwartimah Kurnia, Andine Rizki La Nina Gunaswara Samudera Mada Triandala Sibero Mahfud Mahfud Meitri Bella Puspa Melinda Sri Asih Mirsa Septiana Mutik Mostafa Imhmed Ighwerb Muchammad Miftahul Ulum Muchammad Miftahul Ulum Muhammad Helmi Muhammad Iskandar Zulkarnain Muhammad Yusuf Muhammad Zainuri Muhammad Zainuri Muhammad Zainuri Muhammad Zainuri Muhammad Zainuri Munana, Nila Munasik Munasik Munnaffaroh, Mufasihatul Mu’alimah Hudatwi Nando Arta Gusti Pamungkas Nila Munana Njurumana, Steven Nggiku Nopratilova Nopratilova Nur Taufiq Nur Taufiq-Spj Nurhabibah, Prabawati Ony Ilham Pradiksa Pradina Purwati Prakoso, Bagus Enggal Pratiwi, Wukir Berliana Primaswatantri Permata Puji Norbawa Putri Sakinah Mayani, Putri Sakinah Putri, Ni Putu Purba Nava Vidyadhari Raden Ario Rafsanjani A. Karim Rafsanjani A. Karim Ranny Ramadhani Yuneni Retno Hartati Retno Kusumastuti Retno Murwani Ria Azizah Ria Azizah Tri Nuraini Rico Adi Setyanto Robertus Triaji Mahendrajaya Robertus Triaji Mahendrajaya Robertus Triaji Mahendrajaya Robertus Triaji Mahendrajaya Robin Robin Rudhi Pribadi Sabila, Ahda Samudera, La Nina Gunaswara Saputra Giri Wicaksono Saputra Giri Wicaksono Saputri, Noviyani Sari Budi Moria Septiyani, Fenny Seto Haryoardyantoro Siagian, Cristiani Sri Redjeki Sri Turni Hartati Sri Turni Hartati Sri Yulina Wulandari Subagiyo Subagiyo Sugiyanto, Nenden Rose Sunaryo Sunaryo Sunaryo Sunaryo Surbakti, Fitriani Suryono Suryono Sutrisno Anggoro Theresia Claudia Lasmarito Theresia Pradiani Triatmojo, Aldhian Ulfah Nurjanah, Ulfah Valentina R Iriani Valentina R. Iriani W.L. Saputra Wahyu Adi Wahyu Dewi Utari Haryanti Wilis Ari Setyati Wisnu Dewanto Wita Kristianty Sirait Wukir Berliana Pratiwi Yulia Ulfah Yulia Ulfah Yuvita Muliastuti

Title

Found 78 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 78 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 78 Documents
Search