Henderite L Ohee | Cenderawasih University (original) (raw)

Videos by Henderite L Ohee

Kegiatan pngebadian ini bertujuan untuk meningkatkan kepedulian warga Kampung Yoboi, khususnya an... more Kegiatan pngebadian ini bertujuan untuk meningkatkan kepedulian warga Kampung Yoboi, khususnya anak-anak terhadap kebersihan kampunnya sebagai salah satu Kampung Wisata tahun 2021, agar kampung ini tetap bersih dan nyaman sebagai tempat wisata.

Papers by Henderite L Ohee

Jurnal Biologi Papua, May 14, 2018

Jurnal Biologi Papua, Jul 28, 2018

Biodiversitas, Aug 16, 2016

Jurnal Biologi Papua, Oct 20, 2018

It has been hypothesized that the <i>Amphilophus labiatus</i> has impacted native fis... more It has been hypothesized that the <i>Amphilophus labiatus</i> has impacted native fish populations, so research was undertaken to describe the sex ratio and reproductive potential of <i>A. labiatus</i> in Lake Sentani through the determination of gonad maturation stages, gonadosomatic index and fecundity. The research was conducted in Lake Sentani between June and August 2019. Fish were collected using a floating gill nets at each location. Sex identification, gonads type, gonad weight and fish fecundity were observed in laboratory. Of the total 542 of <i>A. labiatus </i>collected during the survey, 345 individuals were observed for sex ratio and reproduction. The overall male : female ratio skewed toward male, 3.28 : 1. Generally, males were found in gonad maturation stage I, while females were commonly found in gonad maturation stages III and IV at all locations during the study period. The highest male GSI mean was in Yakonde (0.240.21) and for...

Jurnal biologi Papua/Jurnal Biologi Papua, Apr 5, 2024

Jurnal pengabdian masyarakat MIPA dan pendidikan MIPA, Aug 30, 2023

Masyarakat Sentani lama amat menjaga lingkungan mereka. Mereka tidak menebang hutan secara liar d... more Masyarakat Sentani lama amat menjaga lingkungan mereka. Mereka tidak menebang hutan secara liar dan mencemari tanah dan air. Anak-anak sebagai generasi estafet perlu tahu bagaimana cara menghormati dan menjaga alam. Masyarakat Sentani juga kaya akan folklor yang mulai ditinggalkan dan tidak dikenali oleh sebagian besar anak-anak. Inisiatif ini memanfaatkan folklor Sentani, yaitu cerita rakyat dan lantunan ehabla sebagai media pembelajaran preservasi lingkungan di Kampung Yokiwa, Kabupaten Jayapura. Tujuan kegiatan pengabdian ini adalah (1) mengajarkan dan memberi penyadaran kepada anak-anak Kampung Yokiwa tentang pentingnya mencintai dan merawat lingkungan hidup menggunakan folklor Sentani, (2) mengenalkan, memberi pengalaman, dan motivasi kepada anak-anak untuk mempelajari cara-cara masyarakat Sentani lama menjaga lingkungan hidup mereka. Kegiatan dilakukan di Kampung Yokiwa, Kabupaten jayapura, Papua pada bulan Agustus 2022. Kegiatan ini melibatkan anak-anak usia 9-12 tahun. Teknik yang digunakan adalah mendongeng, membaca, melantun yang diselingi dengan lagu dan permainan. Melalui kegiatan ini, anak-anak menyadari pentingnya menjaga lingkungan dan segala isinya mulai dari hal yang kecil. Mereka pun menjadi agen yang menularkan kebiasaan baik ini kepada teman-teman sebaya mereka. Kegiatan ini juga berhasil mengidupkan kembali folklor Sentani berbasis lingkungan.

JURNAL PENGABDIAN PAPUA, Mar 3, 2021

Biodiversitas, Oct 9, 2018

The red devil cichlid (Amphilophus labiatus, Günther 1864) is one of ten exotic fish species inha... more The red devil cichlid (Amphilophus labiatus, Günther 1864) is one of ten exotic fish species inhabiting Lake Sentani. It is believed to be one of the most important threats to the native fish of Lake Sentani. This study aimed to document the distribution of red devil cichlids and the impacts of this species on native fish fauna. Fish were sampled in six locations in Lake Sentani using gill nets during February and March 2018. Fish species and abundance were recorded and used to calculate the relative abundance, dominance, species evenness, Shannon Wiener Index (H') and the correlation between introduced and native fish species. A total of 836 fish belonging to 12 species were recorded across Lake Sentani. Mean fish diversity (H'=0.57) and evenness (E= 0.25) were low. The red devil cichlid is the most abundant fish recorded during our surveys (87.2% of total fish collected) and is now the most dominant fish in the lake (C=0.76). Moreover, it has colonized all areas sampled within the lake because of its ability to colonize new habitat and to successfully exploit a large diversity of trophic niches. However, Amphilophus labiatus was not found to be significantly correlated to native fish between different sites in Lake Sentani. The existence of endemic and native fish in Lake Sentani is now seriously threatened by the presence of the red devil cichlid throughout this lake.

Jurnal Biologi Papua, Oct 20, 2018

Papua has a potensial marine resources both in ecology aspect as well as in economic. To keep the... more Papua has a potensial marine resources both in ecology aspect as well as in economic. To keep the richness of marine resources, conservation is needed. Tiyaitiki is a traditional conservation based on indigenous knowledge of local people of Teluk Tanah Merah Depapre Jayapura. They used their custom to conserve both the water areas and the natural resources as well. The aims of the study were to observe the diversity of plankton and fishes in Teluk Tanah Merah, and to know the quality of water based on that diversity. Research was conducted from July to August 2007. Line transect method was used in this study. Datawere collected from three station, at morning, noon, dawn and night separately.The result of the study were 38 genera of plankton, 21 genera of fithoplankton and 17 genera of zooplankton. Moreover, the result of fish diversity survey was 62 species. Those indicated that the water areas in Teluk Tanah Merah Depapre was in a good qualityfor fish life.

Jurnal Biologi Papua, May 29, 2019

Freshwater community in Lake Sentani comprise of 35 species including three endemic species, seve... more Freshwater community in Lake Sentani comprise of 35 species including three endemic species, seven native species, eight anadromous fish and 17 introduced species. Two native species are Sentani Gudgeon (Oxyeleotris heterodon) and Snakehead Gudgeon (Giuris margaritacea). The survey aims to document the ecology and fish abundance of the gudgeons in Lake Sentani. Fish sampling was done passively by using gill nets with three different mesh sizes in five locations; Puai, Enandowai, Waena, Ayapo and Yahim. Substrate type, water vegetations, habitat depth and fish abundance were recorded each locations. Substrate preferences of the gudgeons are sand, mud and gravel, while O. heterodon was more abundance in sand mud substrate type. Moreover, water vegetation preference was different between O. heterodon and G. margaritacea. Sentani Gudgeon prefer habitat with dense water vegetations, while G. margaritaceus could be found in habitat with or without water vegetation. Theses two gudgeons were found in relatively the same habitat depth, up to 7 meters depth. O. heterodon and G. margaritacea had a very low abundance in the lake. It is important to conserve lake area from the edge up to 7 meter depth that consist of sand, mud and gravel substrate types and dense water vegetation to ensure the population of these two gudgeons are abundance in Lake Sentani.

Prosiding Seminar National Pengabdian Kepada Masyarakat (SNPPM) LPPM Universitas Negeri Jakarta, 2022

Lake Sentani has significantly changed in the last twenty years. These changes are due to various... more Lake Sentani has significantly changed in the last twenty years. These changes are due to various human activities that cause habitat loss and changes of fish communities in the lake. It could have impact the local community knowledge on Sentani Lake, particularly for children. Therefore, it is important to equip children with enough environmental literacy about Lake Sentani so that they understand the need to protect and conserve the lake. To achieve that, the community service targetting children was carried out with children from Yokiwa Traditional Village in Jayapura regency in the library of "Snaggar Napas Danau Sentani's Studio. The activity was conducted for eight months, from May to December 2022. Five activities has been running with children in Yokiwa Traditional Village from July to October 2022, while other programs are carried out outside the village and the output is reported to partner. Information on Lake Sentani and its fish species has been shared to these children. The N-Gain test found that the children's knowledge about Lake Sentani was low. Environmental literacy about Lake Sentani needs to continually reshare to children in this village as well as to other children in villages around Lake Sentani.

Jurnal Natural, Jun 21, 2012

Penelitian ini bertujuan untuk menambah data spesies dan kelimpahan ikan air tawar untuk digunaka... more Penelitian ini bertujuan untuk menambah data spesies dan kelimpahan ikan air tawar untuk digunakan dalam perencanaan konservasi di daerah Mamberamo. Survei dilaksanakan selama 18 hari dari 5 Februari sampai 24 April 2008 pada beberapa habitat, berupa sungai, kali, telaga, dan aliran-aliran air. Sejumlah 20 spesies yang tergolong ke dalam 17 genus dan 14 famili telah dikoleksi dan ditangkap menggunakan gillnet, cast net, hand net, long line dan tumbuhan beracun Deris sp. Dua catatan baru ditemukan dari Mamberamo, yaitu Chilaterina lorentzi yang sebelumnya hanya diketahui dari sungai Tawarin pada pantai utara Papua sekitar 200 km sebelah barat Jayapura dan kali Puive, anak sungai Pual dekat Vanimo, PNG; dan Monopterus albus (sejenis ikan introduksi) yang sebelumnya tidak diketahui ada di Mamberamo. Pada umumnya fauna ikan air tawar yang dikoleksi di Haya sekitar 70% mirip dengan catatan dari Dabra.

Trends in Sciences

Ellochelon vaigiensis is a monotypic, catadromous, and widespread species through... more Ellochelon vaigiensis is a monotypic, catadromous, and widespread species throughout Indo-Pacific region. Taxonomy of the species is ancient and somewhat confused by morphological resemblance. Here, we present and compare the morphological characteristics of E. vaigiensis from 3 distinct areas, respectively from the type locality (Waigeo Island, Raja Ampat), from Cendrawasih Bay (Biak Island), and Kaimana (Venu and Aiduma Islands). All the samples belong to E. vaigiensis following the species diagnosis given by Harrison and Senou (1999). No significant differentiation is found for all meristic and morphological characters between specimens caught from the type locality and Biak Island. Nevertheless, specimens from Kaimana have a slender body width compared to specimens from Waigeo Island (type locality) and Biak Island. Specimens from Kaimana also display a longer head and a larger eye diameter than specimens from Biak Island. A canonical discriminant analysis made ...

Lake Sentani is located in Jayapura, Papua. Sentani people live in 26 villages along the coast an... more Lake Sentani is located in Jayapura, Papua. Sentani people live in 26 villages along the coast and small islands around the lake. One of those islands is Yoboy Village, where a Onomi Niphi Reading House has been operating to provide library for elementary and senior high schools. The reading house is becoming center for various programs from various parties. Lake Sentani education program for students in Onomi Niphi Reading House was conducted to increase their knowledge of characteristics and fish species of Lake Sentani, as well as to develop digital education package and distributed to students in Yoboi Village and other students through social media. The program was conducted in Onomi Niphi Reading House, Jayapura at June 26 and July 3, 2021 through seminar and answer-question methods. Pretest was conducted before the class started and posttest applied after the class. Evaluation of the program was based on tests result and categorized to be distinguished, excellent, moderate, and poor. The test results showed the improvement of students' knowledge on Lake Sentani. The documentation of the lake knowledge in digital format was distributed to the students and through social media. This will help the students to be aware of the improtance of conserving Lake Sentani.

Ellochelon vaigiensis is a monotypic, catadromous, and widespread species throughout Indo-Pacific... more Ellochelon vaigiensis is a monotypic, catadromous, and widespread species throughout Indo-Pacific region. Taxonomy of the species is ancient and somewhat confused by morphological resemblance. Here, we present and compare the morphological characteristics of E. vaigiensis from 3 distinct areas, respectively from the type locality (Waigeo Island, Raja Ampat), from Cendrawasih Bay (Biak Island), and Kaimana (Venu and Aiduma Islands). All the samples belong to E. vaigiensis following the species diagnosis given by Harrison and Senou (1999). No significant differentiation is found for all meristic and morphological characters between specimens caught from the type locality and Biak Island. Nevertheless, specimens from Kaimana have a slender body width compared to specimens from Waigeo Island (type locality) and Biak Island. Specimens from Kaimana also display a longer head and a larger eye diameter than specimens from Biak Island. A canonical discriminant analysis made on all morphometric data confirms the morphological differentiation of Kaimana's specimens compared to the type locality and Biak Island. These results suggest the possibility of the presence of cryptic species in E. vaigiensis and emphasize the necessity to conduct molecular taxonomy to definitely solve the taxonomic status of Kaimana specimens.

Kegiatan pngebadian ini bertujuan untuk meningkatkan kepedulian warga Kampung Yoboi, khususnya an... more Kegiatan pngebadian ini bertujuan untuk meningkatkan kepedulian warga Kampung Yoboi, khususnya anak-anak terhadap kebersihan kampunnya sebagai salah satu Kampung Wisata tahun 2021, agar kampung ini tetap bersih dan nyaman sebagai tempat wisata.

Jurnal Biologi Papua, May 14, 2018

Jurnal Biologi Papua, Jul 28, 2018

Biodiversitas, Aug 16, 2016

Jurnal Biologi Papua, Oct 20, 2018

It has been hypothesized that the <i>Amphilophus labiatus</i> has impacted native fis... more It has been hypothesized that the <i>Amphilophus labiatus</i> has impacted native fish populations, so research was undertaken to describe the sex ratio and reproductive potential of <i>A. labiatus</i> in Lake Sentani through the determination of gonad maturation stages, gonadosomatic index and fecundity. The research was conducted in Lake Sentani between June and August 2019. Fish were collected using a floating gill nets at each location. Sex identification, gonads type, gonad weight and fish fecundity were observed in laboratory. Of the total 542 of <i>A. labiatus </i>collected during the survey, 345 individuals were observed for sex ratio and reproduction. The overall male : female ratio skewed toward male, 3.28 : 1. Generally, males were found in gonad maturation stage I, while females were commonly found in gonad maturation stages III and IV at all locations during the study period. The highest male GSI mean was in Yakonde (0.240.21) and for...

Jurnal biologi Papua/Jurnal Biologi Papua, Apr 5, 2024

Jurnal pengabdian masyarakat MIPA dan pendidikan MIPA, Aug 30, 2023

Masyarakat Sentani lama amat menjaga lingkungan mereka. Mereka tidak menebang hutan secara liar d... more Masyarakat Sentani lama amat menjaga lingkungan mereka. Mereka tidak menebang hutan secara liar dan mencemari tanah dan air. Anak-anak sebagai generasi estafet perlu tahu bagaimana cara menghormati dan menjaga alam. Masyarakat Sentani juga kaya akan folklor yang mulai ditinggalkan dan tidak dikenali oleh sebagian besar anak-anak. Inisiatif ini memanfaatkan folklor Sentani, yaitu cerita rakyat dan lantunan ehabla sebagai media pembelajaran preservasi lingkungan di Kampung Yokiwa, Kabupaten Jayapura. Tujuan kegiatan pengabdian ini adalah (1) mengajarkan dan memberi penyadaran kepada anak-anak Kampung Yokiwa tentang pentingnya mencintai dan merawat lingkungan hidup menggunakan folklor Sentani, (2) mengenalkan, memberi pengalaman, dan motivasi kepada anak-anak untuk mempelajari cara-cara masyarakat Sentani lama menjaga lingkungan hidup mereka. Kegiatan dilakukan di Kampung Yokiwa, Kabupaten jayapura, Papua pada bulan Agustus 2022. Kegiatan ini melibatkan anak-anak usia 9-12 tahun. Teknik yang digunakan adalah mendongeng, membaca, melantun yang diselingi dengan lagu dan permainan. Melalui kegiatan ini, anak-anak menyadari pentingnya menjaga lingkungan dan segala isinya mulai dari hal yang kecil. Mereka pun menjadi agen yang menularkan kebiasaan baik ini kepada teman-teman sebaya mereka. Kegiatan ini juga berhasil mengidupkan kembali folklor Sentani berbasis lingkungan.

JURNAL PENGABDIAN PAPUA, Mar 3, 2021

Biodiversitas, Oct 9, 2018

The red devil cichlid (Amphilophus labiatus, Günther 1864) is one of ten exotic fish species inha... more The red devil cichlid (Amphilophus labiatus, Günther 1864) is one of ten exotic fish species inhabiting Lake Sentani. It is believed to be one of the most important threats to the native fish of Lake Sentani. This study aimed to document the distribution of red devil cichlids and the impacts of this species on native fish fauna. Fish were sampled in six locations in Lake Sentani using gill nets during February and March 2018. Fish species and abundance were recorded and used to calculate the relative abundance, dominance, species evenness, Shannon Wiener Index (H') and the correlation between introduced and native fish species. A total of 836 fish belonging to 12 species were recorded across Lake Sentani. Mean fish diversity (H'=0.57) and evenness (E= 0.25) were low. The red devil cichlid is the most abundant fish recorded during our surveys (87.2% of total fish collected) and is now the most dominant fish in the lake (C=0.76). Moreover, it has colonized all areas sampled within the lake because of its ability to colonize new habitat and to successfully exploit a large diversity of trophic niches. However, Amphilophus labiatus was not found to be significantly correlated to native fish between different sites in Lake Sentani. The existence of endemic and native fish in Lake Sentani is now seriously threatened by the presence of the red devil cichlid throughout this lake.

Jurnal Biologi Papua, Oct 20, 2018

Papua has a potensial marine resources both in ecology aspect as well as in economic. To keep the... more Papua has a potensial marine resources both in ecology aspect as well as in economic. To keep the richness of marine resources, conservation is needed. Tiyaitiki is a traditional conservation based on indigenous knowledge of local people of Teluk Tanah Merah Depapre Jayapura. They used their custom to conserve both the water areas and the natural resources as well. The aims of the study were to observe the diversity of plankton and fishes in Teluk Tanah Merah, and to know the quality of water based on that diversity. Research was conducted from July to August 2007. Line transect method was used in this study. Datawere collected from three station, at morning, noon, dawn and night separately.The result of the study were 38 genera of plankton, 21 genera of fithoplankton and 17 genera of zooplankton. Moreover, the result of fish diversity survey was 62 species. Those indicated that the water areas in Teluk Tanah Merah Depapre was in a good qualityfor fish life.

Jurnal Biologi Papua, May 29, 2019

Freshwater community in Lake Sentani comprise of 35 species including three endemic species, seve... more Freshwater community in Lake Sentani comprise of 35 species including three endemic species, seven native species, eight anadromous fish and 17 introduced species. Two native species are Sentani Gudgeon (Oxyeleotris heterodon) and Snakehead Gudgeon (Giuris margaritacea). The survey aims to document the ecology and fish abundance of the gudgeons in Lake Sentani. Fish sampling was done passively by using gill nets with three different mesh sizes in five locations; Puai, Enandowai, Waena, Ayapo and Yahim. Substrate type, water vegetations, habitat depth and fish abundance were recorded each locations. Substrate preferences of the gudgeons are sand, mud and gravel, while O. heterodon was more abundance in sand mud substrate type. Moreover, water vegetation preference was different between O. heterodon and G. margaritacea. Sentani Gudgeon prefer habitat with dense water vegetations, while G. margaritaceus could be found in habitat with or without water vegetation. Theses two gudgeons were found in relatively the same habitat depth, up to 7 meters depth. O. heterodon and G. margaritacea had a very low abundance in the lake. It is important to conserve lake area from the edge up to 7 meter depth that consist of sand, mud and gravel substrate types and dense water vegetation to ensure the population of these two gudgeons are abundance in Lake Sentani.

Prosiding Seminar National Pengabdian Kepada Masyarakat (SNPPM) LPPM Universitas Negeri Jakarta, 2022

Lake Sentani has significantly changed in the last twenty years. These changes are due to various... more Lake Sentani has significantly changed in the last twenty years. These changes are due to various human activities that cause habitat loss and changes of fish communities in the lake. It could have impact the local community knowledge on Sentani Lake, particularly for children. Therefore, it is important to equip children with enough environmental literacy about Lake Sentani so that they understand the need to protect and conserve the lake. To achieve that, the community service targetting children was carried out with children from Yokiwa Traditional Village in Jayapura regency in the library of "Snaggar Napas Danau Sentani's Studio. The activity was conducted for eight months, from May to December 2022. Five activities has been running with children in Yokiwa Traditional Village from July to October 2022, while other programs are carried out outside the village and the output is reported to partner. Information on Lake Sentani and its fish species has been shared to these children. The N-Gain test found that the children's knowledge about Lake Sentani was low. Environmental literacy about Lake Sentani needs to continually reshare to children in this village as well as to other children in villages around Lake Sentani.

Jurnal Natural, Jun 21, 2012

Penelitian ini bertujuan untuk menambah data spesies dan kelimpahan ikan air tawar untuk digunaka... more Penelitian ini bertujuan untuk menambah data spesies dan kelimpahan ikan air tawar untuk digunakan dalam perencanaan konservasi di daerah Mamberamo. Survei dilaksanakan selama 18 hari dari 5 Februari sampai 24 April 2008 pada beberapa habitat, berupa sungai, kali, telaga, dan aliran-aliran air. Sejumlah 20 spesies yang tergolong ke dalam 17 genus dan 14 famili telah dikoleksi dan ditangkap menggunakan gillnet, cast net, hand net, long line dan tumbuhan beracun Deris sp. Dua catatan baru ditemukan dari Mamberamo, yaitu Chilaterina lorentzi yang sebelumnya hanya diketahui dari sungai Tawarin pada pantai utara Papua sekitar 200 km sebelah barat Jayapura dan kali Puive, anak sungai Pual dekat Vanimo, PNG; dan Monopterus albus (sejenis ikan introduksi) yang sebelumnya tidak diketahui ada di Mamberamo. Pada umumnya fauna ikan air tawar yang dikoleksi di Haya sekitar 70% mirip dengan catatan dari Dabra.

Trends in Sciences

Ellochelon vaigiensis is a monotypic, catadromous, and widespread species through... more Ellochelon vaigiensis is a monotypic, catadromous, and widespread species throughout Indo-Pacific region. Taxonomy of the species is ancient and somewhat confused by morphological resemblance. Here, we present and compare the morphological characteristics of E. vaigiensis from 3 distinct areas, respectively from the type locality (Waigeo Island, Raja Ampat), from Cendrawasih Bay (Biak Island), and Kaimana (Venu and Aiduma Islands). All the samples belong to E. vaigiensis following the species diagnosis given by Harrison and Senou (1999). No significant differentiation is found for all meristic and morphological characters between specimens caught from the type locality and Biak Island. Nevertheless, specimens from Kaimana have a slender body width compared to specimens from Waigeo Island (type locality) and Biak Island. Specimens from Kaimana also display a longer head and a larger eye diameter than specimens from Biak Island. A canonical discriminant analysis made ...

Lake Sentani is located in Jayapura, Papua. Sentani people live in 26 villages along the coast an... more Lake Sentani is located in Jayapura, Papua. Sentani people live in 26 villages along the coast and small islands around the lake. One of those islands is Yoboy Village, where a Onomi Niphi Reading House has been operating to provide library for elementary and senior high schools. The reading house is becoming center for various programs from various parties. Lake Sentani education program for students in Onomi Niphi Reading House was conducted to increase their knowledge of characteristics and fish species of Lake Sentani, as well as to develop digital education package and distributed to students in Yoboi Village and other students through social media. The program was conducted in Onomi Niphi Reading House, Jayapura at June 26 and July 3, 2021 through seminar and answer-question methods. Pretest was conducted before the class started and posttest applied after the class. Evaluation of the program was based on tests result and categorized to be distinguished, excellent, moderate, and poor. The test results showed the improvement of students' knowledge on Lake Sentani. The documentation of the lake knowledge in digital format was distributed to the students and through social media. This will help the students to be aware of the improtance of conserving Lake Sentani.

Ellochelon vaigiensis is a monotypic, catadromous, and widespread species throughout Indo-Pacific... more Ellochelon vaigiensis is a monotypic, catadromous, and widespread species throughout Indo-Pacific region. Taxonomy of the species is ancient and somewhat confused by morphological resemblance. Here, we present and compare the morphological characteristics of E. vaigiensis from 3 distinct areas, respectively from the type locality (Waigeo Island, Raja Ampat), from Cendrawasih Bay (Biak Island), and Kaimana (Venu and Aiduma Islands). All the samples belong to E. vaigiensis following the species diagnosis given by Harrison and Senou (1999). No significant differentiation is found for all meristic and morphological characters between specimens caught from the type locality and Biak Island. Nevertheless, specimens from Kaimana have a slender body width compared to specimens from Waigeo Island (type locality) and Biak Island. Specimens from Kaimana also display a longer head and a larger eye diameter than specimens from Biak Island. A canonical discriminant analysis made on all morphometric data confirms the morphological differentiation of Kaimana's specimens compared to the type locality and Biak Island. These results suggest the possibility of the presence of cryptic species in E. vaigiensis and emphasize the necessity to conduct molecular taxonomy to definitely solve the taxonomic status of Kaimana specimens.

Located in Jayapura regency, Sentani lake is the bigest lake in Papua Province with total area 93... more Located in Jayapura regency, Sentani lake is the bigest lake in Papua Province with total area 9360 ha and it has maximum depth. Geographycaly, the position of this lake is 70-90 m above sea level at coordinate 2°33’ - 2°41’ S, 140°38’ – 140°38’ E. Sentani lake is the main producer of freshwater fish in Jayapura Regency and it support the livelihood of local people especially the local fishermen. The change of habitat and biota of Sentani lake mainly due to the activities of people living around. One of the bigest threat for this lake is habitat break down and exotic species introduction. As a consequence, recently Sentani lake has becoming the most threatean freashwater ecosystem. The aim of this activity was to raised the awarness of citizen regarding the important of sentani lake through conservation. Seminar and questionaire are methods use for the activity. The citizen target was young age (PAM and PAR) at local church (GKI Siloam Waena, Jayapura). The result of this activity...