scholarly journals STRUKTUR POPULASI IKAN EKONOMIS PENTING PADANG LAMUN DI TELUK EKAS LOMBOK TIMUR

2019 ◽  
Vol 19 (2) ◽  
pp. 229
Author(s):  
Muh Fahmi Zuhdi ◽  
Karnan Karnan ◽  
Abdul Syukur
Keyword(s):  
Population Structure ◽  
Data Analysis ◽  
Ecological Function ◽  
Seagrass Beds ◽  
Beach Seine ◽  
Area Method ◽  
Weight Relationship ◽  
Siganus Canaliculatus ◽  
Swept Area ◽  
Important Fish

Abstrak : Penelitian ini bertujuan untuk menilai status dan struktur populasi ikan ekonomis penting padang lamun di Teluk Ekas. Pengambilan sampel dilakukan menggunakan pukat pantai (Beach seine) dengan metode swept area pada bulan Mei-Juni 2016. Analisis data pada penelitian ini yaitu analisis data kelimpahan relatif individu ikan menggunakan formula KR=Ni/N x 100 selanjutnya analisis hubungan panjang dan berat menggunakan rumus W= aLb. Hasil pada penelitian ini ditemukan empat spesies ikan ekonomis penting yaitu Siganus gutatus, Siganus canaliculatus, Hemiramphus archipelagicus dan Terapon jarbua. Kelimpahan ikan ekonomis penting yaitu Siganus gutatus sebesar 33,60% dan yang paling rendah Terapon jarbua sebesar 21,24%. Sebaran panjang masing-masing spesies ikan yaitu Siganus guttatus 61-70 mm (46,6%). Siganus canaliculatus, sebaran panjang yang paling tinggi yaitu pada rentang 71-80 mm sebesar (33,1%). Hemiramphus archipelagicus, sebaran panjang yang paling tinggi yaitu pada rentang 131-150 mm sebesar (36,3%). Terapon jarbua, sebaran panjang yang paling tinggi yaitu pada rentang 91-100 mm sebesar (26,8%). Hubungan panjang dan berat ikan yang diperoleh menunjukkan bahwa pola pertumbuhan semua spesies adalah allometrik negatif. Dapat disimpulkan bahwa tingginya kelimpahan jenis ikan ekonomis penting yang berasosiasi dengan padang lamun yang berukuran juvenil sebagai indikator fungsi ekologi lamun sangat vital untuk ikan dapat survive.Kata Kunci : Padang Lamun, Distribusi dan Keragaman Ikan Ekonomis Penting.Abstract : This research aims to assess the stattus and population structure of economically important fish seagrass beds. The sampel was taken by using beach seine with swept area method on Mei-Juni 2016. The data analysis of this research was the analysis of abundance relativity of individual fish by using formula . Then data analysis of lenght and weight relationship using the formula W=aLb.The result of this research, it was found that four species of economically important fish they are Siganus guttatus, Siganus canaliculatus, Hemiramphus archipelagicus and Terapon jarbua. The results abundance of economically important fish was highest in Siganus gutatus with the percentage of 33.60% and the lowest in fish Terapon jarbua with the percentage of 21.24. The distribution of each species was Siganus guttatus the length of distribution highest in the range 61-70 mm with the percentage of 46,6%, Siganus canaliculatus the length of distribution highest in the range 71-80 mm with the percentage of 31,3%, Hemiramphus archipelagicus the length of distribution highest in the range 131-150 mm with the percentage of 36,6%, Terapon jarbua the length of distribution highest in the range 91-100 mm with the percentage of 26,8%. The correllation beetwen length and weight showed that the form of all species was allometrik negatif. It can be concluded that the high number of abundance of economically important juveniles fish which was associated with seagrass as the indicator of ecological function of seagrass ecology was vital in order that fish able to survive.Keywords : Seagrass beds, Distribution and Variation of Economically Important F

scholarly journals Studi Karakteristik Morfometrik Ikan Julung-Julung (Hemiramphus Archipelagicus) Di Daerah Intertidal Teluk Ekas

2016 ◽  
Vol 16 (2) ◽  
Author(s):  
I Gde Suryawan, Mahrus Dan Karnan
Keyword(s):  
Intertidal Zone ◽  
Morphological Characteristic ◽  
Morphometric Characteristic ◽  
Young Fish ◽  
Beach Seine ◽  
Area Method ◽  
Total Length ◽  
Lower Jaw ◽  
Upper Jaw ◽  
Swept Area

ABSTRAKPenelitian ini bertujuan untuk mengetahui karakteristik morfometrik dan meristik ikan julung-julung di Teluk Ekas, Lombok Timur. Sampel penelitian berjumlah 165 ikan yang di tangkap pada daerah intertidal dengan metode swept area menggunakan pukat pantai (beach seine) di tiga stasiun. Karakteristik morfologi yang terlihat dengan jelas pada ikan julung-julung ini yaitu memiliki rahang bawah dengan warna merah pada ujungnya dan memiliki ukuran yang jauh lebih panjang jika dibandingkan dengan rahang atasnya. Hasil pengukuran karakteristik morfometrik menunjukkan bahwa ikan julung-julung yang terdapat pada daerah intertidal perairan Teluk Ekas merupakan ikan muda (juvenile) dengan frekuensi panjang total (PT) tertinggi terdapat pada ukuran 13,1-15 cm. Kesimpulan dari penelitian ini menunjukkan bahwa ikan julung-julung di daerah intertidal Teluk Ekas memiliki karakteristik morfometrik yang hampir sama dengan ikan julung-julung pada umumnya. Kata-kata kunci: Ikan Julung-Julung, Karakteristik, Meristik, Morfometrik   ABSTRACT This research intended to know the morphometric and meristic characteristic of jumping halfbeak at Ekas Bay, East Lombok. The sample of this research consisted of 165 fishes which caught at intertidal zone using swept area method with beach seine in three stations. The morphological characteristic which can be seen clearly on jumping halfbeak has lower jaw with red tip and longer than its upper jaw. The results of measurement of morphometric characteristic proved that jumping halfbeak at intertidal zone of Ekas Bay were young fish (juvenile) total length highest frequency on range of 13,1-15 cm. The conclusion of this research is jumping halfbeak at the intertidal zone of Ekas Bay has the similar characteristic morphometric to the general one. Keywords: Characteristic, Jumping halfbeak, Meristic, Morphometric

scholarly journals Species And Abundance Of Fish In The Seagrass Beds Napomanuk Island, West Likupang, North Minahasa

2020 ◽  
Vol 10 (3) ◽  
pp. 110
Author(s):  
Ardi Lensun ◽  
Nego E. Bataragoa ◽  
Ari B. Rondonuwu
Keyword(s):  
Fish Species ◽  
Full Moon ◽  
High Tide ◽  
Species Abundance ◽  
Seagrass Beds ◽  
Seagrass Bed ◽  
Beach Seine ◽  
Seagrass Ecosystem ◽  
New Moon ◽  
Swept Area

This study aims to know fish genera, species abundance, and biomass in the seagrass bed of Napomanuk island. It applied swept area method using a beach seine 60 m long 3 m depth with 0.5 cm mesh at the purse and 1 cm at the wings. The study was conducted at full moon and new moon period at both high tide and low tide. There were 55 fish species of 31 families recorded. In full moon period, 37 species occurred at high tide. The species abundance (Ki) ranged from 0.0004/m2 to 0.0126/m2 with the highest in Diodon liturosus, 0.0126/m2. The biomass abundance (Kb) ranged from 0.0019 g/m2 to 1.133 g/m2, with the highest in Diodon liturosus,1.133 g/m2. At low tide, there were 16 species recorded with the species abundance (Ki) of 0.0006/m2 to 0.0037/m2 and the highest in Diodon liturosus 0.0037/m2 and the biomass abundance (Kb) of 0.0002 g/m2 to 0.2949 g/m2 and the highest in  Diodon liturosus 0.2949 g/m2. In new moon period, there were 29 species recorded at high tide. The species abundance (Ki) ranged from 0.0004/m2 to 0.0041/m2 with the highest in Diodon liturosus with the highest in Diodon liturosus, 0.0041/m2. The biomass abundance (Kb) ranged from 0.0007 g/m2 to 0.4015 g/m2, with the highest in Diodon liturosus 0.4015 g/m2. At low tide, there  were 22 species recorded. The species abundance (Ki) ranged from 0.0004/m2 to 0.0096/m2 with the highest in Diodon liturosus, 0.0096/m2. The biomass abundance (Kb) ranged from 0.0011 g/m2 to 1.1119 g/m2, with the highest in Diodon liturosus, 1.1119 g/m2.Keyword: Seagrass Ecosystem, Abundance, Species, Biomass, Napomanuk Island ABSTRAKPenelitian ini bertujuan untuk mengetahui jenis ikan dan kelimpahan individu dan biomassa ikan di Padang Lamun Pulau Napomanuk. Metode penelitian menggunakan metode daerah sapuan (sweept area) dengan menggunakan pukat pantai dengan panjang 60 m, tinggi bagian kantong 3 m, mata jaring kantong 0,5 cm, dan mata jaring sayap 1 cm. Penelitian dilaksanakan pada fase bulan purnama dan bulan baru baik waktu air pasang maupun air surut. Selama penelitian ini ditemukan 31 famili dan 55 spesies ikan. Pada periode air pasang bulan purnama terdapat 37 spesies ikan. Kelimpahan individu (Ki) berkisar antara 0,0004/m2 sampai 0,0126/m2, dengan nilai Ki terbesar pada spesies Diodon liturosus 0,0126/m2. Kelimpahan biomassa (Kb)  berkisarantara 0,0019 g/m2 sampai 1,133 g/m2, dengan nilai Kb terbesar pada spesies Diodon liturosus 1,133 g/m2. Pada periode air surut bulan purnama terdapat 16 spesies ikan. Kelimpahan individu (Ki) berkisar antara 0,0006/m2 sampai 0,0037/m2, dengan nilai Ki terbesar pada spesies Diodon liturosus 0,0037/m2. Kelimpahan biomassa (Kb) berkisar antara 0,0002 g/m2 sampai 0,2949 g/m2, dengan nilai Kb terbesar pada spesies Diodon liturosus 0,2949 g/m2. Pada periode air pasang bulan baru terdapat 29 spesies ikan. Kelimpahan individu (Ki) berkisar antara 0,0004/m2 sampai 0,0041/m2 dengan nilai Ki terbesar pada spesies Diodon liturosus 0,0041/m2. Kelimpahan biomassa (Kb) berkisar antara 0,0007 g/m2 sampai 0,4015 g/m2, dengan nilai Kb terbesar pada spesies Diodon liturosus 0,4015 g/m2. Pada periode air surut bulan baru terdapat 22 spesies ikan. Kelimpahan individu (Ki) berkisar antara 0,0004/m2 sampai 0,0096/m2 dengan nilai Ki terbesar pada spesies Diodon liturosus 0,0096/m2. Kelimpahan biomassa (Kb) berkisar antara 0,0011 g/m2 sampai 1,1119 g/m2, dengan nilai Kb terbesar pada spesies Diodon liturosus 1,1119 g/m2.Kata kunci : Ekosistem Lamun, Kelimpahan, Spesies, Biomassa, Pulau Napomanuk

scholarly journals THE COMPOSITION OF SPECIES AND STRUCTURE OF SEAGRASS FISH COMMUNITY IN TANJUNG TIRAM – INNER AMBON BAY

2012 ◽  
Vol 4 (1) ◽  
Author(s):  
Husain Latuconsina ◽  
M. Natsir Nessa ◽  
Rohani Ambo Rappe
Keyword(s):  
Fish Community ◽  
Neap Tide ◽  
Nursery Ground ◽  
Seagrass Beds ◽  
Fish Community Structure ◽  
Siganus Canaliculatus ◽  
Seagrass Ecosystems ◽  
Management And Conservation ◽  
Swept Area

<p>The study was conducted in March - May 2011 in the coastal waters of Tanjung Tiram – inner Ambon bay. The aims of the study were to determine the composition of species and structure of fish communities in seagrass beds ecosystems. Fish were collected every spring and neap tide for three month periode with a swept area method using beach seine. Fishes were collected as many as 6444 individuals representing 68 species from 29 families. Siganus canaliculatus was contributed up to 62.91% of the total individual fish found.The fish community structure was varied between spring and neap tide. Index of dominance was in low category, diversity in medium, and evenness in unstable conditions. Moreover, the results indicated that seagrass ecosystems in Tanjung Tiram (TAD) have an important role as spawning, nursery ground, and feeding ground. Therefore, management and conservation efforts are urgently needed to maintain the ecological role of seagrass ecosystems for the sustainability of the fish resources.</p><p>Keywords: Seagrass beds, fish community, tanjung tiram, inner Ambon Bay</p>

scholarly journals THE COMPOSITION OF SPECIES AND STRUCTURE OF SEAGRASS FISH COMMUNITY IN TANJUNG TIRAM – INNER AMBON BAY

2012 ◽  
Vol 4 (1) ◽  
Author(s):  
Husain Latuconsina ◽  
M. Natsir Nessa ◽  
Rohani Ambo Rappe
Keyword(s):  
Fish Community ◽  
Neap Tide ◽  
Nursery Ground ◽  
Seagrass Beds ◽  
Fish Community Structure ◽  
Siganus Canaliculatus ◽  
Seagrass Ecosystems ◽  
Management And Conservation ◽  
Swept Area

The study was conducted in March - May 2011 in the coastal waters of Tanjung Tiram – inner Ambon bay. The aims of the study were to determine the composition of species and structure of fish communities in seagrass beds ecosystems. Fish were collected every spring and neap tide for three month periode with a swept area method using beach seine. Fishes were collected as many as 6444 individuals representing 68 species from 29 families. Siganus canaliculatus was contributed up to 62.91% of the total individual fish found.The fish community structure was varied between spring and neap tide. Index of dominance was in low category, diversity in medium, and evenness in unstable conditions. Moreover, the results indicated that seagrass ecosystems in Tanjung Tiram (TAD) have an important role as spawning, nursery ground, and feeding ground. Therefore, management and conservation efforts are urgently needed to maintain the ecological role of seagrass ecosystems for the sustainability of the fish resources.Keywords: Seagrass beds, fish community, tanjung tiram, inner Ambon Bay

Studi Komparatif Komunitas Ikan Padang Lamun Pada Bulan Perbani Awal Dan Perbani Akhir Di Perairan Loleo Kecamatan Weda Selatan Kabupaten Halmahera Tengah

2016 ◽  
Vol 16 (2) ◽  
Author(s):  
Farjan Kaeli, Riyadi Subur Dan Salim Abubakar
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Fish Species ◽  
Fish Communities ◽  
Seagrass Beds ◽  
The Moon ◽  
Siganus Canaliculatus ◽  
Sphyraena Barracuda ◽  
In The Beginning ◽  
The Village

ABSTRAK            Ikan memanfaatkan padang lamun sebagai habitatnya, ada yang hidup menetap dan adapula yang berkunjung ke padang lamun hanya untuk mencari makan atau untuk memijah, sebagai tempat untuk berlindung. Tujuan dari penelitian ini adalah mengetahui jumlah dan jenis ikan padang lamun yang tertangkap pada bulan perbani awal dan perbani akhir di Perairan Desa Loleo,mengetahui struktur komunitas ikan padang lamun yang tertangkap pada bulan perbani awal dan perbani akhir dan untuk mengetahui perbandingan komunitas ikan padang lamun yang tertangkap pada bulan perbani awal dan perbani akhir di Perairan Desa Loleo. Hasil penelitian diperoleh komposisi jenis ikan pada bulan perbani awal sebanyak 14 jenis yaitu Caranx ignobilis, Caranx melampygus, Alectis ciliaris, Selar crumenophthalmus, Choerodon anchorago, Cheilio inermis, Lethrinus microdon, Mulloidichthys flavolineatu, Gerres acinaces    Bleeker, Siganus spinu, Siganus canaliculatus, Siganus doliatus, Hemiramphus sp, Balistoides viridescens. Sedangkan ikan pada bulan perbani akhir sebanyak 8 jenis yaitu Sphyraena barracuda, Siganus canaliculatus, Siganus doliatus, Zanclus cornutus, Lethrinus miniatus, Moolgarda seheli, Hemiramphus sp, Amanses scopas. Keanekaragaman jenis baik ikan yang tertangkap pada bulan perbani awal dan perbani akhir tergolong sedang, dan tidak ada jenis yang mendominansi serta penyebaran jenisnya sangat merata. Rata-rata hasil tangkapan antara bulan perbani awal dan perbani akhir memiliki perbedaan dan rata-rata hasil tangkapan terbanyak adalah pada bulan perbani awal. Kata Kunci : Komunitas, Ikan, Perbani Awal, Perbani Akhir, Padang Lamun.ABSTRACT                 Fish utilize seagrass beds as habitat, there were sedentary and those that visit to seagrass beds only to find food or to spawn, as a place of refuge. The purpose of this study was to determine the number and type of fish seagrass caught in neap beginning and neap end in Water Village Loleo, know the community structure of seagrass beds had been arrested in neap beginning and neap end and to compare the fish communities of seagrass caught in neap neap beginning and ending at the village Aquatic Loleo. The results obtained by the composition of fish species in neap early as 14 types of Caranx ignobilis, Caranx melampygus, Alectis ciliaris, scad crumenophthalmus, Choerodon anchorago, Cheilio inermis, Lethrinus microdon, Mulloidichthys flavolineatu, Gerres acinaces Bleeker, Siganus spinu, Siganus canaliculatus, Siganus doliatus, Hemiramphus sp, Balistoides viridescens. While the fish in neap late as 8 types of Sphyraena barracuda, Siganus canaliculatus, Siganus doliatus, Zanclus cornutus, Lethrinus miniatus, Moolgarda seheli, Hemiramphus sp, Amanses scopas. Good species diversity of fish caught in neap neap beginning and end is classified, and no kind mendominansi and very uneven spread of its kind. The average catches between the moon neap neap early and late have differences and average catches neap most was in the beginning. Keywords: Community, Fish, Early neap, neap End, Seagrass. 

scholarly journals Comparison of biomass estimates from multiple stratification approaches in a swept area method for Pacific saury Cololabis saira in the western North Pacific

2020 ◽  
Vol 86 (3) ◽  
pp. 445-456 ◽  
Author(s):  
Midori Hashimoto ◽  
Hideaki Kidokoro ◽  
Satoshi Suyama ◽  
Taiki Fuji ◽  
Hiroomi Miyamoto ◽  
...  
Keyword(s):  
North Pacific ◽  
Western North Pacific ◽  
Pacific Saury ◽  
Area Method ◽  
Cololabis Saira ◽  
Swept Area

scholarly journals GENETIC DIFFERENTIATION OF THE KAMPAR RIVER'S GIANT FEATHERBACK (Chitala lopis BLEEKER 1851) BASE ON MITOCHONDRIAL DNA ANALYSIS

2017 ◽  
Vol 16 (2) ◽  
pp. 49 ◽  
Author(s):  
Arif Wibowo ◽  
Ridwan Affandi ◽  
Kadarwan Soewardi ◽  
Sudarto Sudarto
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Population Structure ◽  
Sequence Analysis ◽  
Nucleotide Sequence ◽  
Dna Analysis ◽  
Nucleotide Sequence Analysis ◽  
Mitochondrial Dna Control Region ◽  
Mitochondrial Dna Analysis ◽  
Important Fish

Although the giant featherback Chitala lopis is an important fish in Kampar River, the population structure has not been investigated. In this study, genetic diversity and population structure of giant featherback were examined using nucleotide sequence analysis of mitochondrial DNA control region for 54 fish collected from Kampar River.

scholarly journals Population structure, growth and fishery yield of Leporinus acutidens (Valenciennes, 1837) (Teleostei: Anostomidae) in Yacyretá Reservoir (Argentina)

2008 ◽  
Vol 6 (1) ◽  
pp. 57-66 ◽  
Author(s):  
Patricia R. Araya ◽  
Angelo A. Agostinho ◽  
José A. Bechara
Keyword(s):  
Population Structure ◽  
Condition Factor ◽  
Growth Ring ◽  
Sampling Site ◽  
Total Mortality ◽  
Late Summer ◽  
Maximum Sustainable Yield ◽  
Weight Relationship ◽  
Filling Phase ◽  
Population Structure And Dynamics

The population structure and dynamics of Leporinus acutidens (Valenciennes, 1837), upstream from Yacyretá Dam (Upper Paraná River, Argentina) were analyzed for their relation to age, condition factor, growth, mortality and fishery yield. The pre- (1990-94) and post- (1995-98) filling phases of the reservoir were compared with regard to age structure, condition factor, and the length/weight relationship of fish. Fish sampling was carried out at four sampling sites following a longitudinal gradient along the river. The catches took place monthly using eight monofilament gillnets (mesh 40 to 160 mm). The growth marks on the scales were annual (9-year maximum). The study of the variation in the monthly averages of the scale marginal increments revealed that the period of the growth ring formation shifted from winter to spring in the post-filling phase. The length/weight relationship coefficient (b) was higher after dam closing. The condition factor increased before the reproduction period and during late summer, reaching maximum values in the post-filling phase, and especially at the sampling site placed within the reservoir region. The von Bertalanffy growth coefficient k for both sexes was 0.16, and the asymptotic length L" reached 338 mm. Natural mortality during the whole study period, according to Pauly's equation, was 0.25 years -1 and total mortality was 0.37 years -1. The Beverton-Holt yield per recruit (Y/R) model attained 57.23 g, with a maximum sustainable yield (MSY) of 70.75 g. Low total mortality was associated with the lack of commercial exploitation of the species.

scholarly journals ASPEK PERTUMBUHAN UNDUR-UNDUR LAUT, Hippa adactyla DARI PANTAI BERPASIR KABUPATEN KEBUMEN

2013 ◽  
Vol 13 (2) ◽  
Author(s):  
Ali Mashar Dan Yusli Wardiatno
Keyword(s):  
Growth Pattern ◽  
Sustainable Management ◽  
Sandy Beach ◽  
Biological Information ◽  
Swash Zone ◽  
Area Method ◽  
The World ◽  
Biological Component ◽  
Swept Area ◽  
Ecology And Economy

ABSTRAKUndur-undur laut atau mole crab merupakan komponen penting dari komunitas makrobentos di pantaiberpasir terbuka, baik di daerah tropis maupun bermusim empat di seluruh dunia.Undur-undur lautmempunyai fungsi ekonomi dan ekologi.Salah satu jenis undur-undur laut yang banyak dijumpai diIndonesia adalah jenis Hippa adactyla.Karena fungsi ekonomi dan ekologi undur-undur laut pentinguntuk dilestarikan, salah satu informasi penting yang dibutuhkan adalah pola pertumbuhan undurundurlaut.Penelitian dilakukan di Pantai Bocor, Kecamatan Buluspesantren, KabupatenKebumen.Pengambilan sampel undur-undur laut dilakukan setiap bulan dari bulan Maret hingga Mei2012, yang dilakukan dengan metode penyapuan dengan bantuan alat tangkap sorok pada daerahpantai berpasir yang terpengaruh gerakan gelombang (swash zone) (swept area method).Hasilpenelitian menunjukkan bahwa undur-undur laut Hippa adactyla yang tertangkap mempunyai kisaranpanjang karapas antara 15 mm hingga 40 mm, dengan ukuran yang paling banyak tertangkap beradapada selang panjang karapas 24-26 mm.Nisbah kelamin undur-undur laut di lokasi penelitianmendekati 1 (1,035) atau tergolong seimbang, dimana jumlah undur-undur laut jantan relatif seragamdengan undur-undur laut betina.Kondisi ini juga menunjukkan bahwa kondisi populasi undur-undurlaut di lokasi penelitian relatif stabil. Pola pertumbuhan undur-undur laut Hippa adactylaseluruhnya,baik jantan, betina, maupun gabungan, adalah isometrik, artinya pertambahan panjang undur-undurlaut relatifsama dengan pertambahan bobotnya.Kata kunci: Hippa adactyla, pantai berpasir, undur-undur lautABSTRACTMole crabs are one of important biological component among macrobenthos communityinhabiting sandy beach, both in tropic or temperate area all over the world. They playsignificant ecology and economy role in their habitat. One of Indonesian mole crabs is Hippaadactyla. Due to its ecological and economical function of the crab, it is neede to study thepopulation growth pattern for biological information based sustainable management. One ofimportant biological information is growth pattern. The research was conducted in PantaiBocor, Kecamatan Buluspesantren, Kabupaten Kebumen. Sample collections were donemonthly during March – May 2012. Sampling was done by swep area method by means oflocal fishermen gear called sorok along swash zone. The results showed that the carapacelength of collected crabs ranged from 19 – 34 mm, with the highest abundance within range of29 – 30 mm. Female dominated the sex ratio. The F/M ratio was 0.244. The growth pattern ofmale was isometric, while in female it was negative allometric. However, combining datashowed that the growth patern of the population was negative allometric, so its length growsfaster than its weight.Keywords: Hippa adactyla, sandy beach, mole crab, southern part of Jawa

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