Habitat Preferences of Blue Swimming Crab (Portunus pelagicus) Species Complex

Asphama, Andi Ivo; Amir, Faisal; Malina, Asmi Citra; Fujaya, Yushinta

doi:10.21534/ai.v16i1.10

Cited by 5 publications

(7 citation statements)

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“…Salah satu potensi perikanan laut tersebut adalah rajungan (Portunus pelagicus) (Yusfiandayani & Sobari, 2011;Setiyawan & Fitri, 2019). Rajungan (Portunus pelagicus Linnaeus, 1758) merupakan salah satu jenis kepiting (crab) dari famili Portunidae yang hidup di perairan dangkal hingga kedalaman 50 m dengan jenis substrat lumpur, pasir dan pasir berlumpur (Asphama et al, 2015;Nuraini et al, 2017;Prasetyo et al, 2014). Rajungan merupakan salah satu komoditas penting yang hingga saat ini sebagian besar produksinya diperoleh dari hasil penangkapan di alam (Waters, 2017;Istikasari et al, 2016).…”

Section: Pendahuluanunclassified

ASPEK BIOLOGI RAJUNGAN (Portunus pelagicus) DI PESISIR KABUPATEN LAMPUNG TIMUR, PROVINSI LAMPUNG

Kanedi¹,

Rahardjo²,

Maulita³

2020

BJSJ

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Abstrak Salah satu potensi perikanan laut adalah rajungan (Portunus pelagicus). Rajungan (Portunus pelagicus) merupakan komoditas yang penting karena mempunyai nilai ekonomi tinggi dan permintaan pasar baik di dalam maupun luar negeri masih tinggi. Tujuan dilaksanakan praktik integrasi ini adalah untuk Menganalisis beberapa aspek biologi untuk mengetahui pola pertumbuhan sebagai acuan kajian stok rajungan di Pesisir Kabupaten Lampung Timur, Provinsi Lampung dan Mengetahui aspek perikanan di Pesisir Kabupaten Lampung Timur, Provinsi Lampung. Metode yang digunakan dalam penelitian ini adalah metode penelitian deskriptif. Pengambilan data praktik meliputi penentuan hubungan lebar bobot karapas, nisbah kelamin, tingkat kematangan gonad, ukuran pertama kali tertangkap dan ukuran pertama kali matang gonad. Hasil praktik menunjukkan rajungan yang ada di pesisir Kabupaten Lampung Timur diperoleh dari hasil pengukuran sampel lebar-bobot rajungan sebanyak 1013 spesies dengan pola pertumbuhan alometrik negatif. Hasil nisbah kelamin P. pelagicus memperlihatkan bahwa 544 rajungan jantan (54%) dan 469 rajungan betina (46%) memiliki sex ratio 1:0.862. Persentase Tingkat kematangan gonad jantan (46%) dan betina (54%). Ukuran morfometrik nilai standar length at first maturity (Lm) yaitu 12.48 cm. Dari hasil perhitungan diperoleh nilai Lc Total sebesar 13.23 cm. Rajungan di Pesisir Kabupaten Lampung Timur biasanya ditangkap menggunakan alat tangkap Jaring Rajungan dan Bubu.Kata Kunci : Rajungan; Lampung Timur, Alat Tangkap

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Section: Pendahuluanunclassified

ASPEK BIOLOGI RAJUNGAN (Portunus pelagicus) DI PESISIR KABUPATEN LAMPUNG TIMUR, PROVINSI LAMPUNG

Kanedi¹,

Rahardjo²,

Maulita³

2020

BJSJ

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“…The difference life stages of P. pelagicus have variated habitat preferences due to their changes in diet as they become mature and, as a result, they move further offshore [14]. Areas with different depth and habitat substrates, which variate crab population, could provide catch differently for fisheries [15].…”

Section: Introductionmentioning

confidence: 99%

Monsoon cycle influences on catch and size of blue swimming crabs (Portunus pelagicus) from crab gillnets in Phetchaburi Province

Lurkpranee¹,

Songin²,

Wangvoralak³

et al. 2021

ScienceAsia

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Portunus pelagicus is a crucial resource of Thailand and a large portion of the catch comes from artisanal fisheries. The aims of this study were to elucidate fishing practices and identify the effects of driving factors on catch in terms of quantity and quality of P. pelagicus caught by crab gillnets in Phetchaburi Province. Samples were collected from January 2018 to February 2019. In both upper and lower areas of Phetchaburi Province, the lowest catch per unit effort (CPUE) was found in the northeast monsoon season, while the highest was found in the pre-monsoon. The results indicated an interaction between areas, seasons, and mesh sizes on log CPUE, and the log CPUE was generally lower in the northeast monsoon season in both areas and groups of mesh sizes. The size of P. pelagicus by carapace width ranged from 5.5 to 17.0 cm with the median ± interquartile of 11.0 ± 1.0 cm. The crab size in the upper area was smaller than in the lower area in all seasons and the crab size in the southwest monsoon season was larger than in the other seasons for both areas. The median sizes were larger than the first maturity size of 9.5 cm in almost all the months, except October, in the upper area (median carapace width ± interquartile = 9.0 ± 0.8 cm).

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“…Crab is classified as crustacean group which has a thick exoskeleton shell [1]. This creature lives in seawater, freshwater and partly on land [1].…”

Section: Introductionmentioning

confidence: 99%

“…Crab is classified as crustacean group which has a thick exoskeleton shell [1]. This creature lives in seawater, freshwater and partly on land [1]. Portunus pelagicus or also called "flower crab" in East Asian countries [2], is commonly available at seafood markets and restaurants to be served as one of the main seafood dishes [3].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Poly(lactic-Co-Glycolic Acid)/Calcium Phosphate Bone Cement Composite: Synthesization of Calcium Phosphate From Crab Shells

et al. 2018

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Crab shells are waste product, rich with calcium compound. Calcium element is often used as a material for bone scaffold due to its bioactive and biodegradation properties. In this study, calcium phosphate (CaP) nanoparticles were synthesized from crab shells through a wet chemical route. The CaP nanoparticles were then sintered and mixed with poly(lactic-co-glycolic acid) (PLGA) to form a bone cement composite. The mixture was casted in a cylinder shape and it was characterized through ATR-FTIR, XRD, FESEM, contact angle and DSC analyses. The CaP pellet and the CaP/PLGA bone cement composite were then subjected to in vitro simulated body fluid (SBF) bioactivity test. The CaP/PLGA bone cement composite was found to have a composition of crystal CaP and PLGA with a tolerable glass transition state, suitable to be used in a physiological environment. The CaP nanoparticles were agglomerated on the 3D interconnected surface of PLGA. The hydrophobicity of the CaP was increased (66.94%) with the addition of PLGA as a binder matrix where this composite has induced the formation of apatite layer. This bioactive property is crucial in fabricating a bone substitute material as it can promotes cell penetration, attachment and proliferation..

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Habitat Preferences of Blue Swimming Crab (Portunus pelagicus) Species Complex

Cited by 5 publications

References 0 publications

ASPEK BIOLOGI RAJUNGAN (Portunus pelagicus) DI PESISIR KABUPATEN LAMPUNG TIMUR, PROVINSI LAMPUNG

ASPEK BIOLOGI RAJUNGAN (Portunus pelagicus) DI PESISIR KABUPATEN LAMPUNG TIMUR, PROVINSI LAMPUNG

Monsoon cycle influences on catch and size of blue swimming crabs (Portunus pelagicus) from crab gillnets in Phetchaburi Province

Fabrication of Poly(lactic-Co-Glycolic Acid)/Calcium Phosphate Bone Cement Composite: Synthesization of Calcium Phosphate From Crab Shells

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