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Reproduksi Ikan Endemik Butini (Glossogobius matanensis Weber 1913) Berdasarkan Kedalaman dan Waktu di Danau Towuti, Sulawesi Selatan Mamangkey, Jefry Jack; Nasution, Syahroma Husni
JURNAL BIOLOGI INDONESIA Vol 8, No 1 (2012): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Reproduction of Endemic Fish Butini (Glossogobius matanensis) Based on Depth and Time in Towuti Lake. Butini fish (Glossogobius matanensis) belonging to the Gobiidae family and is one ofendemic fish in Towuti Lake and classified as demersal fish. Fishing activities and habitat quality changes tend to reduce butini stocks in Towuti Lake. Therefore, it needs to be protected of stocksfor sustainability. This research is to determine reproduction of endemic fish based on depth and time as basic data for the effort of conservation and domestication. Gonad maturity that was analyzed histologically obtained five maturity stages. Based on the diversity of egg size, especially in the gonad maturity stage (IV), it is indicated that butini fish are classified as partial spawner. Male and female fish gonad mature (50%) at 36.22 and 31.43 cm total length, respectively. October and March, an estimated spawning peak of butini fish in Towuti Lake held this month at a depth of 150m and 200 m. Fecundity of butini fish in gonad maturity stage (III and IV) between 11184-66305 eggs and 14922-81522 eggs, respectively. The highest mean of fecundity there in October (56,907 eggs) and the lowest was found in July (25,447 eggs). Fecundity of fish at 25 m-200 m depths ranging from 30.778-35.329 eggs.Keywords: Reproduction, endemic fish, Glossogobius matanensis, depth and time, Towuti Lake

PERTUMBUHAN DAN MORTALITAS IKAN ENDEMIK BUTINI (Glossogobius matanensis Weber, 1913) DI DANAU TOWUTI, SULAWESI SELATAN [Growth and Mortality of Endemic Fish Butini (Glossogobius matanensis Weber,1913) in Lake Towuti, South Sulawesi] Mamangkey, Jefry Jack; Nasution, Syahroma Husni
BERITA BIOLOGI Vol 13, No 1 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i1.651

Lake Towuti is the largest lake in the Malili Complex covering the area of 560 km and 203 m in depth. Butini is an endemic and vulnerable fish species that consumed by the local people and have an important economic value. Various activities occured in the lake was thought to be the cause of decreasing fish populations.The objective of this study was to determine the growth and mortality of butini in Lake Towuti.This research was conducted in Lake Towuti for 12 months from Mei 2006 to April 2007.Fish samples obtained by using long lines with various number of hooks i.e. 8,10,12,14,and 16.Each depth (25, 50, 75, 100, 150, and 200 m) launched one long line unit in three zones (A, B, and C).Growth and fish mortality were calculated based on total length frequency data using FiSAT II software. The results showed that the longest size (46.20 cm) was the male found at a depth of -1,200(t-to)150 m in April in Zone C.The combined Von Bertalanffyâs growth pattern was of L(t)= 46,62 [1 - e ]. While the growth pattern for each male -0,950(t-to) -0,820(t-to) and female was L(t) =46,62 [1 - e ] and L(t)= 46,62 [1 - e ] respectively. The highest total mortality was found in Zone B (5.49 per year) occurred in female fish. The highest natural mortality was observed in Zone B (1.80 per year) occurred in male fish.The highest fishing mortality was recorded in zone B (4.08 per year) and found in female fish. The highest exploitation level was found in zone A (E = 0.76) recorded in female fish.Exploitation level of butini stock in Lake Towuti indicated over-fishing (E=0.56) recorded in Zone A.

REPRODUKSI IKAN ENDEMIK BUTINI (GLOSSOGOBIUS MATANENSIS WEBER 1913) BERDASARKAN KEDALAMAN DAN WAKTU DI DANAU TOWUTI, SULAWESI SELATAN Mamangkey, Jefry Jack; Nasution, Syahroma Husni
JURNAL BIOLOGI INDONESIA Vol 8, No 1 (2012): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v8i1.3064

Reproduction of Endemic Fish Butini (Glossogobius matanensis) Based on Depth and Time in Towuti Lake. Butini fish (Glossogobius matanensis) belonging to the Gobiidae family and is one ofendemic fish in Towuti Lake and classified as demersal fish. Fishing activities and habitat quality changes tend to reduce butini stocks in Towuti Lake. Therefore, it needs to be protected of stocksfor sustainability. This research is to determine reproduction of endemic fish based on depth and time as basic data for the effort of conservation and domestication. Gonad maturity that was analyzed histologically obtained five maturity stages. Based on the diversity of egg size, especially in the gonad maturity stage (IV), it is indicated that butini fish are classified as partial spawner. Male and female fish gonad mature (50%) at 36.22 and 31.43 cm total length, respectively. October and March, an estimated spawning peak of butini fish in Towuti Lake held this month at a depth of 150m and 200 m. Fecundity of butini fish in gonad maturity stage (III and IV) between 11184-66305 eggs and 14922-81522 eggs, respectively. The highest mean of fecundity there in October (56,907 eggs) and the lowest was found in July (25,447 eggs). Fecundity of fish at 25 m-200 m depths ranging from 30.778-35.329 eggs.Keywords: Reproduction, endemic fish, Glossogobius matanensis, depth and time, Towuti Lake

ANALISIS STRUKTUR POPULASI DAN TINGKAT KEMANTANGAN GONAD IKAN PAYANGKA (OPHIELEOTRIS APOROS) DI DANAU TONDANO SULAWESI UTARA Mamangkey, Jefry jack; Rogahang, F H N; Adil, Ellen
FRONTIERS: JURNAL SAINS DAN TEKNOLOGI Vol 2, No 3 (2019): DESEMBER 2019
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (876.594 KB)

Ikan payangka (Ophieleotris aporos) sejak dulu menjadi idola orang Minahasa karena rasanya yang lezat dan kandungan protein yang cukup tinggi serta memiliki nilai ekonomis. Tujuan mendapatkan informasi tentang struktur populasi dan tingkat kematangan gonad ikan payangka di Danau Tondano. Penelitian ini dilakukan dengan metode deskriptif. Untuk menentukan struktur populasi ikan payangka seluruh data pengukuran panjang dianalisis dengan menggunakan metode Bhatacharya melalui subprogram Model Progression Analisys (MPA) dalam program FiSat II dan Berat gonad ditimbang dengan mengunakan timbangan digital dengan ketelitian 0.001 gram. Pengamatan TKG dilakukan secara visual yaitu dengan melihat perubahan morfologi gonad. Hasil menunjukkan perbandingan jenis kelamin antar stasiun jumlah jenis kelamin betina lebih banyak dibanding persentase jantan. Ukuran ikan yang tertangkap untuk jantan pada ukuran 12,9 cm dan betina pada ukuran 15.1 cm dan tingkat kematangan gonad ikan paling banyak pada TKG II dan III. Hal ini menunjukan bahwa ukuran ikan betina yang kebanyakan tertangkap pada kisaran ukuran muda. Struktur populasi ikan payangka semakin menurun dari ukuran panjang dan menurunnya populasi karena rusaknya habitat akibat ulah manusia dalam mengeksploitasi sumberdaya tanpa mengindahkan kelestarian.

PERTUMBUHAN DAN MORTALITAS IKAN ENDEMIK BUTINI (Glossogobius matanensis Weber, 1913) DI DANAU TOWUTI, SULAWESI SELATAN Jefry Jack Mamangkey; Syahroma Husni Nasution
BERITA BIOLOGI Vol 13, No 1 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i1.651

Lake Towuti is the largest lake in the Malili Complex covering the area of 560 km and 203 m in depth. Butini is an endemic and vulnerable fish species that consumed by the local people and have an important economic value. Various activities occured in the lake was thought to be the cause of decreasing fish populations.The objective of this study was to determine the growth and mortality of butini in Lake Towuti.This research was conducted in Lake Towuti for 12 months from Mei 2006 to April 2007.Fish samples obtained by using long lines with various number of hooks i.e. 8,10,12,14,and 16.Each depth (25, 50, 75, 100, 150, and 200 m) launched one long line unit in three zones (A, B, and C).Growth and fish mortality were calculated based on total length frequency data using FiSAT II software. The results showed that the longest size (46.20 cm) was the male found at a depth of -1,200(t-to)150 m in April in Zone C.The combined Von Bertalanffy’s growth pattern was of L(t)= 46,62 [1 - e ]. While the growth pattern for each male -0,950(t-to) -0,820(t-to) and female was L(t) =46,62 [1 - e ] and L(t)= 46,62 [1 - e ] respectively. The highest total mortality was found in Zone B (5.49 per year) occurred in female fish. The highest natural mortality was observed in Zone B (1.80 per year) occurred in male fish.The highest fishing mortality was recorded in zone B (4.08 per year) and found in female fish. The highest exploitation level was found in zone A (E = 0.76) recorded in female fish.Exploitation level of butini stock in Lake Towuti indicated over-fishing (E=0.56) recorded in Zone A.

HUBUNGAN PERKEMBANGAN OTOLIT DENGAN PERTUMBUHANI KAN TERBANG (Cypseluruspoecilopierus) DIPERAIRAN TELUK MANADO [Relationship Between Otholith and Growth of Flying Fish, Cypselurus poecilopierus in Manado Bay] Jefry Jack Mamangkey
Jurnal Iktiologi Indonesia Vol 2 No 1 (2002): Juni 2002
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v2i1.209

As one of the hard structure in the fish body, the otolith, formed by calcium carbonat and arogonite could be usefull to count the growth and age of the fish. Thes purpose of this study is to know the growth pattern within spotted flying fish (Cypselurus poecilopterus), the relationship between otolith size increments with increments of length, weight of the species. By explorative method the growth data were took up from otolith then observed under ligth microscope. The results showed that the cirle dark (opaque) and light lines (hyaline) were formed in the otolith. Otolith development of spotted flying showed some kinds of reproductive relationship, and spotted flying otolith showed that the development of this species is slow. Growth pattern of spotted flying is allometrik.ABSTRAKOtolit adalah bagian keras dari ikan yang terbentuk dari kalsium dan arogonit, yang dapat berguna dalam perhitungan pertumbuhan dan umur ikan. Studi bertujuan untuk mengetahui pola pertumbuhan ikan terbang (Cypselurus poecilopterus), hubungan antara peningkatan ukuran otolit dengan panjang panjang dan berat spesies. Dengan metode eksplorasi, data pertumbuhan diperoleh dari otolit yang diamati dengan menggunakan mikroskop. Hasil penelitian menunjukkan bahwa lingkaran gelap (opaque) dan garis terang (hyaline) dibentuk di otolit. Perkembangan otolit menunjukkan hubungan reproduksi dan otolit menunjukkan perkembangan spesies ikan ini lambat. Pola pertumbuhan ikan terbang bersifat allometrik.

KERAGAMAN GENETIK IKAN ENDEMIK BUTINI (Glossogobius matanensis) BERDASARKAN PENANDA RANDOM AMPLIFIED POLYMORPHISM DNA (RAPD) DI DANAU TOWUTI SULAWESI SELATAN Jefry Jack Mamangkey; Sulistiono Sulistiono; Djadja Subardja Sjafei; Dedi Soedharma; Sutrisno Sukimin; Estu Nugroho
Jurnal Riset Akuakultur Vol 2, No 3 (2007): (Desember 2007)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

Evaluasi keragaman genetik ikan endemik butini yang diambil dari Danau Towuti Sulawesi Selatan dilakukan dengan menggunakan penanda RAPD. Sampel ikan dikoleksi dari Danau Towuti yang terbagi atas tiga zone dan masing-masing zone memiliki kedalaman 25 m, 75 m, dan 150 m. Tidak terdapat perbedaan genetik yang nyata antar ketiga zone dari masing-masing kedalaman. Heterozigositas berkisar antara 0,0491—0,1861. Dendrogram berdasarkan 26 loci mengelompokkan secara garis besar kedalam dua kelompok yaitu kelompok ikan pada kedalaman 25—75 m dan kelompok ikan pada kedalaman >150 m.Evaluation of genetic variability of endemic fish, butini which catched from Towuti Lake - South Sulawesi has been conducted based on the RAPD marker. Fish sample collected from Towuti Lake that divided into three zone and with depth of 25 m, 75 m, and 150 m. There is no significant differentiation genetically among fish from three zone and depth. Heterozygosity was range between 0.0491 to 0.1861. Dendrogram based on the 26 loci divided the fish population generally into two group i.e. first group is consisted of fish collected from 25—75 m in depth and second one is constructed fish collected from >150 m in depth.

Interactive Power Point On Human Movement System Material; An Effort To Improve Biology Learning Outcomes At Kaima Advent Middle School Heltiana Heltiana; Jefry Jack Mamangkey; Anatje Lihiang
Konstanta : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 1 No. 3 (2023): September : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/konstanta.v1i3.1213

The world of education plays a significant role in the development of students. So, to facilitate the learning process for students is the main task of a teacher. For this reason, teachers are not only required to make the learning atmosphere comfortable and exciting. However, the teacher must also be able to improve maximum learning outcomes for students. This study aims to determine whether the application of interactive PowerPoint learning media in the classroom can help improve student's learning outcomes in class VIII on the material of the human movement system as well as research. In contrast, the object used in this research is the application of learning media using interactive PowerPoint media at Arrival Junior High School Kaima. The type of research used is classroom action research by applying two cycles of data collection obtained from observations of teacher activities and observations of student activities as well as tests before and after the action and documentation. The data analysis technique used in this study is a qualitative descriptive technique. Based on the study results, the class action that the researchers had carried out found that before the action was taken, the student's learning outcomes were 0%, or the number of students who had completed was absent. At the same time, there was an increase of 83.33% in the first cycle, and in the second cycle, again experienced an increase of 100%. This means that learning using interactive PowerPoint media is proven to help teachers improve learning outcomes in Kaima Adventist Junior High School class VIII students.

POPULATION DIVERSITY BASED ON MORPHOMETRIC MERISTIC ENDEMIC BUTINI FISH (Glossogobius matanensis) IN LAKE TOWUTI, SOUTH SULAWESI Jefry Jack Mamangkey; Utari Satiman; Stella Taulu
Indonesian Biodiversity Journal Vol. 3 No. 3 (2022): December 2022
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v3i3.5753

Butini fish is a resource wealth of fauna found only in the East Complex Malili Luwu, South Sulawesi. The necessary information about the morphological characters (morphometric and meristic) to determine the management of fish resources. The purpose is to assess the diversity of populations based on morphometric meristik. Sampling is based on descriptive methods and fish samples taken to determine the diversity of phenotypes based on the depth of each morphometric character. Calculating morphometric characters using the main component analysis to obtain the correlation between the character and the grouping of individuals based on morphometric characters. Calculation meristik characters include the number of fingers, the number of fins and scales, namely the number of fingers of the dorsal fin, anal fin radius, the radius of the ventral fin, pectoral fin radius, the radius of the caudal fin, scales on the rib line, scales above the rib line, scales below the ribs, scales in front of the dorsal fins, scales on the cheeks, around the body scales, scales around the tail shaft. The analysis showed that the first two principal components contained the greatest information, with a cumulative range of 80%. All the characters' morphometric first role is a major component. The character who plays the main component of the length of the head in front of the eyes, long upper jaw, lower jaw length, high cheeks, and the length of the radius of a weak base ventral fins showed great correlation to the diversity of forms. Main components analysis also showed that butini fish, at any depth, showed no grouping. This suggests that the fish species observed was one (one unit of population). In calculating the value of phenotypic diversity of each character, butini generally fish in the lake Towuti show morphometric characters with the highest diversity value and the lowest given by the total length and high under the eyes. In the calculation of the formula derived characters meristik flipper fingers that D1, V-VI. D2. I, 8-11; dan D1, V-VI, D2. I, 8-10.

ANALISIS STRUKTUR DAN POLA PERTUMBUHAN IKAN PAYANGKA (Ophieleotris aporos) DI DANAU LIMBOTO Mokoginta, Ayatola R.; Mamangkey, Jefry J.; Rampengan, Mercy M. F; Ogi, Nova L I M; Lawalata, Helen J.
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.888

Payangka fish (Ophieleotris aporos) is a fish that lives in freshwater and has the ability to survive in the midst of competition with other fishes that are very tough. This study aims to analyze the structure of payangka fish and the growth pattern of payangka fish in Lake Limboto. Fish samples were caught using a 2 cm net with a net length of 7 m and then a 1 m serok (sibusibu) with a total sample of 1003 fish. The results of the length structure analysis of payangka fish obtained a length range of 9.15 - 19.05cm with an average of 12.45 cm and the results of the weight structure analysis obtained a range of 9.27 - 47.97 grams with an average of 13.57 grams. The results of the analysis of the relationship between length and weight of payangka fish obtained allometric growth pattern (b = 2.92), b < 3 which means that weight gain is faster than length gain..

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