Biological Analysis of Blue Swimmer Crab (Portunus pelagicus) from Collectors in Lamongan, Tuban, Pasuruan, and Rembang, Java, Indonesia

Murni, Lini; Arfiati, Diana; Kurniawan, Andi; Kilawati, Yuni; Subarijanti, Herwati Umi; Suliswanto, Suliswanto; Syams, Muhammad Nafar Amani; Gumelar, Agum; Huda, Alif Raditya Amirul

doi:10.21776/ub.jels.2018.008.02.04

Cited by 6 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Pertumbuhan rajungan masuk dalam kategori allometrik negatif (b<3) atau dengan kata lain rajungan di perairan Letman cenderung kurus. Hal ini sebanding dengan hasil penelitian rajungan di perairan Lamongan, Tuban dan Pasuruan (Murni et al, 2018), perairan Betahwalang, Demak (Anam et al, 2018) dan perairan Pulau Lancang, Kepulauan Seribu (Afifah et al, 2017) yang juga didapatkan sifat pertumbuhan allometrik negatif. Rajungan di perairan Letman cenderung kurus disebabkan oleh ketersediaan makanan yang sedikit.…”

Section: 2unclassified

Density and width-weight relationship of blue swimming crab (Portunus pelagicus) in Letman Waters, Southeast Maluku

Silaban

2022

AA: ASC

View full text Add to dashboard Cite

Blue swimming crab (Portunus pelagicus) is a fishery commodity with a fairly high selling value, both as a local commodity and as an export commodity. The high level of utilization and trade of blue swimming crabs is not matched by knowledge of how to conserve these resources so that it can result in a decrease in blue swimming crab resource stocks. Sampling was carried out in November 2021 using a selected random sampling method. The density of the male blue swimming crab is 94,118 ind/km2 and the female is 58,824 ind/km2. The results of the analysis of the width-weight relationship of the blue swimming crab showed the nature of the blue swimming crab growth was negative allometric with a b value of 2.579.Keywords: blue swimming crab; density; Letman; width-weight relationship

show abstract

Section: 2unclassified

Density and width-weight relationship of blue swimming crab (Portunus pelagicus) in Letman Waters, Southeast Maluku

Silaban

2022

AA: ASC

View full text Add to dashboard Cite

show abstract

“…Sementara itu, pada beberapa wilayah di perairan laut utara Jawa (Jakarta, Cirebon, Demak, Rembang dan Sumenep) juga didapatkan hasil yang berbeda untuk sifat pertumbuhan rajungan jantan dan betina [17]. Selanjutnya, pada perairan Lamongan, Tuban dan Pasuruan didapatkan sifat pertumbuhan allometrik negatif untuk rajungan jantan maupun betina [18]. Variasi sifat pertumbuhan tersebut dapat dipengaruhi oleh beberapa faktor, antara lain jenis kelamin, suhu, salinitas, makanan dan proses reproduksi [10].…”

Section: Hubungan Lebar Karapas Dan Beratunclassified

Hubungan antar ukuran beberapa bagian tubuh rajungan (Portunus pelagicus) di perairan utara Lamongan, Jawa Timur

Rahman

Iranawati

Yulianto

et al. 2019

JFMR

View full text Add to dashboard Cite

Rajungan (portunus pelagicus) merupakan salah satu komoditas penting perikanan Indonesia. Pengetahuan tentang aspek biologi rajungan, termasuk hubungan antar ukuran bagian-bagian tubuhnya (morfometrik) dan sebaran lebar karapas serta beratnya, akan berguna sebagai salah satu informasi dalam pengelolaan rajungan. Penelitian ini bertujuan untuk mengetahui hubungan lebar karapas-berat rajungan, hubungan lebar-panjang-tinggi karapas, serta sebaran lebar dan berat rajungan. Metode yang digunakan adalah survei dengan pengambilan sample secara acak pada 2 (dua) titik pendaratan ikan di perairan utara Lamongan, khusunya kecamatan Paciran pada bulan Juli sampai September 2018. Hasil penelitian menunjukkan sifat pertumbuhan isometrik untuk rajungan betina dan allometrik positif untuk rajungan jantan. Selain itu, didapatkan hubungan linear positif dengan nilai a = 0,06 dan b = 0,45 untuk lebar-panjang karapas serta nilai a = 0,06 dan b = 0,25 untuk lebar-tinggi karapas. Rajungan betina paling banyak ditangkap pada lebar karapas 12-13 cm dan berat 100 g, sedangkan rajungan jantan sering ditangkap dengan lebar karapas 11 cm dan berat 80-90 g. Masih adanya rajungan dibawah ukuran lebar karapas 10 cm yang tertangkap (lebar karapas diatas 10 cm adalah aturan rajungan yang boleh ditangkap sesuai dengan PER MEN KP 56/2016), maka informasi tentang hubungan lebar-panjang-tinggi rajungan dapat dijadikan masukan untuk melakukan modifikasi alat tangkap, misalnya mendesain ukuran celah pelolosan pada bubu, agar rajungan dengan lebar karapas dibawah 10 cm dapat keluar dari alat tangkap.

show abstract

“…The decree stated that legal size of BSC is >10 cm of carapace width (CW) or >60 g of weight (W), and also the BSC sould not carrying eggs. However, several studies stated that BSCs were captured in the various size of CW, ranged from 4.02 to 17.12 cm, in several Indonesian waters (Apriliyanto et al, 2014;Nugraheni et al, 2015;Kurniasih et al, 2016;Murni et al, 2018;Rahman et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Design and Effect of Escape Vent in a Trap on the Catch of Blue Swimming Crab (Portunus Pelagicus): A Preliminary Study

Rahman

Iranawati

Sambah

2021

RJLS

View full text Add to dashboard Cite

Blue Swimming Crab (Portunus pelagicus, BSC) is one of the Indonesian important fisheries commodities often captured by traps. Under Decree No. 56/2016, the Ministry of Marine Affairs and Fisheries managed the BSC, with the standard size of BSC is >10cm of Carapace Width (CW) or >60 g of Weight (W), and non-berried or carried eggs for female. This study aims to determine BSC's crawling pattern toward the trap, design an escape vent on the trap, and assess catch of BSC using vented trap and non-vented trap. The video footage was used to examine crawling pattern of 30 BSCs on the laboratory. The study also includes field experiment by deploying twenty traps (10 vented traps and 10 non-vented traps) on the sea. The study obtained two crawling patterns of BSC, crawling forward and sideways with the most BSC crawled sideways. Design of escape vent was 4.6 cm length x 2.6 cm height. The BSCs captured in the vented traps have >10cm of CW, while 14% of BSCs in the non-vented traps have <10 cm of CW. The use of escape vent did not affect the catch (weight) of BSC in the trap.

show abstract

Biological Analysis of Blue Swimmer Crab (Portunus pelagicus) from Collectors in Lamongan, Tuban, Pasuruan, and Rembang, Java, Indonesia

Cited by 6 publications

References 1 publication

Density and width-weight relationship of blue swimming crab (Portunus pelagicus) in Letman Waters, Southeast Maluku

Density and width-weight relationship of blue swimming crab (Portunus pelagicus) in Letman Waters, Southeast Maluku

Hubungan antar ukuran beberapa bagian tubuh rajungan (Portunus pelagicus) di perairan utara Lamongan, Jawa Timur

Design and Effect of Escape Vent in a Trap on the Catch of Blue Swimming Crab (Portunus Pelagicus): A Preliminary Study

Contact Info

Product

Resources

About