scholarly journals POPULATION DENSITY AND LENGHT-WEIGHT REALTIONSHIP IN MANGROVE GASTROPOD Cerihidea cingulata AND Littoraria scabra OF PANGKALAN SESAI VILLAGE, DUMAI CITY

2020 ◽  
Vol 3 (3) ◽  
pp. 193-201
Author(s):  
Sania Bariddah ◽  
Syafruddin Nasution ◽  
Syahril Nedi
Keyword(s):  
Population Density ◽  
Mangrove Forest ◽  
River Estuary ◽  
Growth Patterns ◽  
Survey Method ◽  
Line Transect ◽  
Weight Relationship ◽  
Mangrove Ecosystems ◽  
Cerithidea Cingulata ◽  
Relationship Of

Cerithidea cingulata and Littoraria scabra are type of snail that use mangrove ecosystems as one of their habitat. Dumai is one of the industrial cities in the province of Riau, where various kinds of human activities can disrupt the ecosystem of mangroves and its associated biota. This research was conducted in October 2018 in the Mangrove Forest Area (PAB) of Pangkalan Sesai village of Dumai City, aiming to determine population densities and length-weight relationship of C. cingulata and L. scabra. The method used in this study is a survey method. Sampling was conducted by using the line transect method, where each station consists of 3 transects and each transect consists of 3 sampling points as replications. The results showed the population density of C. cingulata and L. scabra snails was higher than at stations near the Dumai river estuary compared with the population near by mangrove forest and length-weight relationship showed that the growth patterns of both C. cingulata and L. scabra were allometric negative and have strong correlation value.

scholarly journals Length-weight relationship of Threadfin Bream (Nemipterus sp.) in Village Malang Rapat Waters, Bintan Regency, Riau Island

2020 ◽  
Vol 13 (2) ◽  
pp. 449
Author(s):  
Rapita Rapita ◽  
Susiana Susiana ◽  
Rochmady Rochmady
Keyword(s):  
Growth Patterns ◽  
Allometric Growth ◽  
Fish Resources ◽  
Weight Relationship ◽  
Relationship Of

Village Malang Rapat waters are have the potential and habitat of kurisi fish resources (Nemipterus sp.). The research was to determine the length-weight relationship of kurisi fish (Nemipterus sp.) in Village Malang Rapat. Sampling of kurisi fish (Nemipterus sp.) in two months (October-November 2020) is taken once a week based on fishing grounds and habitat. Length-weight relationship of female and male kurisi fish (Nemipterus sp.) were y = 1,1568x2,0659 and y = 1,2123x1,8971 respectively, based on this value show that female and male kurisi fish (Nemipterus sp.) in Village Malang Rapat waters have negative allometric growth patterns (b < 3).

scholarly journals Estimation of Kapapa Bajing Population (Callosciurus notatus Boddaert, 1785) Family Sciuridae in Nagari Koto Dalam, Padang Sago, Sumatera Barat

2018 ◽  
Vol 5 (2) ◽  
pp. 210
Author(s):  
Lusi Andalisa ◽  
Rizaldi Rizaldi ◽  
Jabang Nurdin
Keyword(s):  
Population Density ◽  
Survey Method ◽  
Line Transect ◽  
Line Transect Survey ◽  
West Sumatra ◽  
Estimate Population Density

Estimation of the plantain squirrel (Callosciurus notatus Boddaert, 1785) population was conducted from Februari to May 2016. This study aimed to estimate population density in the traditional coconut plantation, Nagari Koto Dalam, Padang Pariaman. The population density was estimated using line transect survey method. Population density of the squirrels in Nagari Koto Dalam was 5.5 ind/ha. This study shows that population density of the squirrel comparable to previous studies in West Sumatra.

scholarly journals KEANEKARAGAMAN HASIL TANGKAPAN IKAN DI KAWASAN TERABRASI BEDONO, KABUPATEN DEMAK (The Diversity of Fish Catch in the Abrasion Area at Bedono River, Demak Regenc)

2018 ◽  
Vol 6 (4) ◽  
pp. 480-489
Author(s):  
Ayu Munafi’ah ◽  
Pudjiono Wahyu Purnomo ◽  
Boedi Hendrarto
Keyword(s):  
Sampling Method ◽  
Condition Factor ◽  
Aquatic Organism ◽  
Survey Method ◽  
Fish Diversity ◽  
Low Level ◽  
Weight Relationship ◽  
Fish Catch ◽  
Relationship Of ◽  
The Relationship

Perairan Bedono merupakan perairan bermangrove yang kawasannya terabrasi dan menyebabkan kawasan ini memebentuk badan air seperti estuarin. Kondisi ini mempengaruhi keanekaragaman dan pertumbuhan biota yang ada termasuk ikan. Penelitian ini bertujuan untuk mengetahui keanekagaman jenis ikan, hubungan panjang berat dan faktor kondisi ikan yang tertangkap. Penelitian ini dilaksanakan pada bulan Februari-Maret 2017. Metode penelitian yang digunakan adalah metode survey dengan teknik sampling haphazard. Stasiun penelitian 24 di bagi 4 kawasan. Pengukuran parameter panjang dan berat dilakukan untuk setiap jenis ikan yang tertangkap. Hasil penelitian terdapat 9 jenis ikan yang termasuk 9 famili antara lain Ikan Belanak (Mugilidae), Ikan Kiper (Scatophagidae), Ikan Bandeng (Chanidae), Ikan Gerabah (Sciaenidae), Ikan Lundu (Bagridae), Ikan Sembilang (Plotosidae), Ikan Laosan (Polynemidae), Ikan Juwi (Clupeidae), dan Ikan Janjan (Gobiidae). Hasil indeks keanekaragaman ikan secara deskriptif berkisar antara 1,09-2,0 yang termasuk tingkat rendah. Hasil analisis hubungan panjang berat setiap ikan b< 3 (allometrik negatif), kecuali ikan juwi b > 3 (allometrik positif), dan hasil analisis faktor kondisi berkisar antara 1,01-1,43 yang termasuk ikan kurang pipih (kurus). Bedono mangrove waters that affected by abrasion and this region is an estuarinearea. These conditions my affect the biodiversity and growth of aquatic organism including fish. This study aimed  to determine the diversity of species of fish, the relationship of weight and condition factor of the fish. This research was conducted in February-March 2017, and used a survey method with the haphazardly sampling method, in 24 stations in 4 regions. The length and weight parameters were measured to each fish spesies. The study found 9 species of fish, in 9 family, that was mulang fish (mango fish), goat fish (skutofagidae fish), milkfish (Chanidae), pottery fish (Sciaenidae), lundu (Bagridae), diplik fish(Plotosidae), laosan fish (Polynemidae), juwi fish (Clupeidae), and fish janjan (Gobiidae). The index of fish diversity are descriptively ranged from 1.09-2.0 which is classified as a low level. The results of the analysis was of the weight relationship of each fish b <3 (allometrik negative), except Juwi fish was b> 3 (allometrik positive), and the result of condition analysis between 1.01-1,43 which including fish less flat.

scholarly journals The Length-Weight Relationship of Metapenaeopsis mogiensis in North Aceh Waters, Indonesia

2020 ◽  
Vol 151 ◽  
pp. 01050
Author(s):  
Abdullah A. Muhammadar ◽  
Dedi F. Putra ◽  
Maria Ulfa ◽  
Zulfahmi Zulfahmi ◽  
Muhammad A. Sarong
Keyword(s):  
Resource Management ◽  
Research Method ◽  
Growth Patterns ◽  
High Protein ◽  
Total Catch ◽  
Sustainable Resource Management ◽  
Additional Information ◽  
Weight Relationship ◽  
The People ◽  
Relationship Of

Shrimp as one of potential commodity which has a high protein and savory flavor of meat is highly favored by the people in the country and abroad. The catch activity of the Metapenaeopsis mogiensis shrimp by the fisherman in Pusong Lama, Lhoksemawe has long been a livelihood. However, if the shrimp catching activity was carried out continuously without any restrictions, it can threaten the sustainability of the shrimp. The purpose of this study was to determine the lenght-weight relationship of shrimp caught in the waters of Aceh Utara, Indonesia. This research was expected to provide additional information on the existence of Metapenaeus mogiensis shrimp and future sustainable resource management for farmers. The research method used was a simple random withdrawal method by taking shrimp samples randomly from a basket of fishermen's catch in one sail. A total of 10% shrimp samples of the total catch of fishermen was taken, then length was measured and weighed. Sampling was carried out in July2019 at TPI Pusong lama, Lhoksemawe. The length of carapace of male shrimp ranges from 14.8 mm to 22.2 mm and females 13.9 mm to 22.1 mm.The weight of male shrimp ranges from 2.17 grams to 6.73 grams and the weight of female shrimp ranges from 2.01 grams to 5.83 grams. Growth patterns found in both males and femalesshowed allometric negatives and the ratio of sex was 1.5: 1 (male:female).

scholarly journals Study of Long Weight Relation of Scylla serrata In Mangrove Forest Around The Wet Laboratory FPIK Eeast Likupang District North Minahasa

2017 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Stivensian M. Tumbel ◽  
Gaspar D. Manu ◽  
Alex D. Kambey
Keyword(s):  
Mangrove Forest ◽  
Economic Value ◽  
Growth Patterns ◽  
Scylla Serrata ◽  
Fishing Gear ◽  
Aquatic Biota ◽  
Mud Crab ◽  
Mangrove Crab ◽  
Relationship Of ◽  
The Relationship

Mud crab (Scylla serrata) is a ten-legged crustacean animal from Brachura infraordo, known to have a very short tail (in Greek: brachy = short, ura = tail). Mangrove crab is one of the aquatic biota that has significant economic value and its life is strongly influenced by the existence of mangrove forest. The purpose of this study is to identify and analyze the relationship of weight and growth patterns of mangrove crab (Scylla serrata). Sampling is obtained by catching activities using fishing gear that is bubu (chang). Based on the results of research conducted in the area of Mangrove Forest around Wet Laboratory Faculty of Fisheries and Marine Sciences, Likupang Timur in August - September 2017. Mangrove crab (Scylla serrata) in the can through research obtained as many as 32 individuals.Keywords: Mangrove Crab (Scylla serrata), Long Weight Relation, Growth Pattern, East Likupang ABSTRAKKepiting bakau (Scylla serrata) adalah binatang anggota crustasea berkaki sepuluh dari infraordo Brachura, yang dikenal mempunyai ekor yang sangat pendek (dalam bahasa Yunani : brachy = pendek, ura = ekor). Kepiting bakau adalah salah satu biota perairan yang bernilai ekonomis penting dan kehidupannya sangat dipengaruhi oleh keberadaan hutan mangrove. Adapun tujuan dari penelitian ini yaitu untuk mengidentifikasi dan menganalisis hubungan panjang berat berserta pola pertumbuhan dari kepiting bakau (Scylla serrata). Pengambilan sampel diperoleh dengan melakukan kegiatan penangkapan menggunakan alat tangkap yaitu bubu (chang). Berdasarkan hasil penelitian yang dilakukan di Daerah Hutan Mangrove sekitar Laboratorium Basah Fakultas Perikanan dan Ilmu Kelautan, Likupang Timur pada bulan Agustus – September 2017. Kepiting bakau (Scylla serrata) yang di dapat selama melalukan penelitian diperoleh sebanyak 32 individu. Kata Kunci : Kepiting Bakau (Scylla serrata), Hubungan Panjang Berat, Pola  Pertumbuhan, Likupang Timur.

scholarly journals Length-weight relationship of Penaeus indicus and Penaeus merguiensis in the Langsa mangrove area, Aceh Province

2021 ◽  
Vol 869 (1) ◽  
pp. 012065
Author(s):  
S Maulida ◽  
T H Iqbal ◽  
F Firmanhadi ◽  
F M Nur ◽  
N Fadli ◽  
...  
Keyword(s):  
Growth Pattern ◽  
Mangrove Forest ◽  
Relative Weight ◽  
B Value ◽  
Weight Relationship ◽  
Aceh Province ◽  
Penaeus Indicus ◽  
Penaeid Shrimps ◽  
Relationship Of ◽  
Penaeus Merguiensis

Abstract The two Penaeid shrimps Penaeus indicus and Penaeus merguiensis are the most common commercial species found in the Langsa mangrove forest. The growth pattern of these two Penaeid shrimps are strongly influenced by environmental factors such as temperature, pH, dissolved oxygen (DO), salinity, availability of food and predators, which ultimately determines the abundance and catch of commercial adult shrimps obtained. The present study aims to investigate the length-weight relationship of P. indicus and P. merguiensis in the Langsa mangrove forest, Aceh Province. The sampling was conducted in November 2018 with the stratified random sampling method. A total of 124 shrimps consisted of 92 samples P. indicus and 32 samples P. merguiensis. The results showed that growth pattern of two Penaeid shrimps was categorized as negative allometric. The highest b value is shown in P. merguiensis with b value of 2.87 while P. indicus 2.55. The value of the relative weight condition factor (Wr) of the two shrimps indicates a value of >100. It is concluded that the waters of the mangrove forest in Langsa City are still able to support the survival of P. indicus and P. merguiensis.

scholarly journals Growth patterns of skipjack tuna (Katsuwonus pelamis, linnaeus 1758) caught by troll line in Prigi waters, Trenggalek East Java Indonesia

2021 ◽  
Vol 890 (1) ◽  
pp. 012047
Author(s):  
G Bintoro ◽  
T D Lelono ◽  
D Setyohadi ◽  
U Fadzilla
Keyword(s):  
Fat Body ◽  
Sampling Period ◽  
Fishing Effort ◽  
Growth Patterns ◽  
Skipjack Tuna ◽  
Market Demand ◽  
Katsuwonus Pelamis ◽  
Weight Relationship ◽  
The Pacific ◽  
Relationship Of

Abstract Skipjack tuna (Katsuwonus pelamis) is an important pelagic fish species caught in tropical and subtropical waters of the Pacific, Atlantic, and Indian oceans. Skipjack tuna (K. pelamis) is also a high economic fisheries resource in Prigi waters which is caught by troll line. High market demand results in high levels of exploitation. This study aimed to identify the length-weight relationship and biological reproduction of skipjack tuna in the Prigi waters. The research was conducted in the sampling period between December 2019 - April 2020 with total samples obtained as much as 1642 fish and was analyzed using linear regression. The results informed that the length-weight relationship of skipjack tuna was positive allometric with equation W=0.007FL3.223 which means that the fish has a fat body. The sex ratio between male and female fish is 1:1. While gonad maturity level obtained in this study is mostly in GML 1 and GML 2 which indicates that the catches were dominated by immature fish, so it is necessary to limit fishing effort so that sustainability of the skipjack tuna (K. pelamis) resource can be managed.

scholarly journals COMPOSITION AND DENSITY OF MARINE DEBRIS IN THE MANGROVE ECOSYSTEMS OF THE SUNGAI RAWA VILLAGE, SUNGAI APIT SUBSDISTRICT, SIAK REGENCY, RIAU PROVINCE

2020 ◽  
Vol 2 (1) ◽  
pp. 29-38
Author(s):  
Nurul Fajriah ◽  
Muhammad Fauzi ◽  
Eni Sumiarsih
Keyword(s):  
Mangrove Forest ◽  
Mangrove Ecosystem ◽  
Marine Debris ◽  
Survey Method ◽  
Settlement Area ◽  
Transect Line ◽  
Mangrove Ecosystems ◽  
Port Area ◽  
June July ◽  
Rubber Fabric

Marine debris is a type of pollutant that commonly found in the mangrove ecosystems. A research aims to determine the composition and density of marine debris in the mangrove ecosystem of the Sungai Rawa Village was conducted in June - July 2018. A survey method was used in this study. Samplings were done three times (once / 2 weeks) at 3 stations namely S1 (ecotourism area), S2 (natural mangrove forest) and S3 (port area and settlement area). Marine debris were collected from 3 plots (10 x 10 m) placed along the transect line. The type of marine debris found in the mangrove ecosystem consists of plastic, glass, rubber, fabric, styrofoam, nets, cans, wood, steel and paper. The density of marine debris based on its characteristics are: megadebris (0.01 - 0.04 items/m2; 4.61 - 34.67 grams/m2), macrodebris (1.43 - 4.75 items/m2; 249.19 - 724.53 grams/m2), mesodebris (0.79 - 2.20 items/m2; 1.54 - 3.23 grams/m2). The most common marine debris found is plastic (69.27 %) and styrofoam (15.65 %).

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