Observations on the Effects of Barite on the Gill Tissues of the Suspension Feeder Cerastoderma edule (Linné) and the Deposit Feeder Macoma balthica (Linné)

2001 ◽  
Vol 42 (1) ◽  
pp. 71-76 ◽  
Author(s):  
M.J Barlow ◽  
P.F Kingston
Keyword(s):  
Macoma Balthica ◽  
Suspension Feeder ◽  
Deposit Feeder ◽  
Cerastoderma Edule

Species identification of bivalve larvae using random amplified polymorphic DNA (RAPD): differentiation between Cerastoderma edule and C. lamarcki

1999 ◽  
Vol 79 (3) ◽  
pp. 563-565 ◽  
Author(s):  
C. André ◽  
M. Lindegarth ◽  
P.R. Jonsson ◽  
P. Sundberg
Keyword(s):  
Random Amplified Polymorphic Dna ◽  
Macoma Balthica ◽  
Morphological Characters ◽  
Marine Bivalve ◽  
Species Identity ◽  
Quick Method ◽  
Cerastoderma Edule ◽  
Bivalve Larvae ◽  
Scrobicularia Plana ◽  
Species Specific

The polymerase chain reaction (PCR) was used to produce species-specific DNA markers (RAPDs) from two sibling cockle species and five other co-occurring intertidal bivalves. Amplification reactions with one single primer readily distinguished larvae and adults of Cerastoderma edule from larvae and adults of C. lamarcki, and from adults of Mya arenaria, Macoma balthica, Scrobicularia plana, Venerupis pulastra and Mytilus edulis. Random amplified polymorphic DNA (RAPD) is suggested as a simple and quick method to determine species identity in taxa that are difficult to identify on the basis of morphological characters alone, such as marine bivalve larvae.

Abundance distribution patterns of intertidal bivalves Macoma balthica and Cerastoderma edule at the Murman coast tidal flats (the Barents Sea)

2015 ◽  
Vol 95 (8) ◽  
pp. 1613-1620 ◽  
Author(s):  
Sophia A. Nazarova ◽  
Ksenia Shunkina ◽  
Evgeny A. Genelt-Yanovskiy
Keyword(s):  
Barents Sea ◽  
Macoma Balthica ◽  
Species Abundance ◽  
Distribution Patterns ◽  
Abundance Distribution ◽  
Cerastoderma Edule ◽  
The North ◽  
The Barents Sea ◽  
Edge Populations ◽  
North Edge

Density distribution of the common infaunal bivalves, Macoma balthica and Cerastoderma edule, was studied along the Murman Coast of the Barents Sea during 2002–2010. In both species, abundance was generally higher in West Murman in contrast to East Murman. Highest density of Macoma balthica reaching 1535 ind. m−2 was observed in the Kola Inlet. Cerastoderma edule was less abundant; its density rarely exceeded 10 ind. m−2 in all but one site, where 282 ind. m−2 was registered. Reconstruction of abundance distribution across the European geographic range of Macoma balthica revealed that it does not match an ‘abundant-centre’ pattern, having features of ramped north. On the other hand, distribution of Cerastoderma edule abundance across the range generally follows an ‘abundant-centre’ pattern but southern edge populations show relatively higher abundances as compared with those at the north edge (the Barents Sea).

scholarly journals IDENTIFIKASI KESESUAIAN LAHAN BUDIDAYA TERIPANG PASIR (Holothuria scabra) BERDASARKAN PARAMETER KIMIA MENGGUNAKAN SISTEM INFORMASI GEOGRAFIS DI PERAIRAN LOMBOK BARAT

2020 ◽  
Vol 10 (1) ◽  
pp. 1-7
Author(s):  
Marsoedi Marsoedi ◽  
Guntur Guntur ◽  
Laily Fitriani Mulyani
Keyword(s):  
Suspension Feeder ◽  
Deposit Feeder ◽  
Holothuria Scabra

Teripang merupakan kelompok hewan invertebrata dari filum Echinodermata kelas Holothurioidea. Teripang termasuk komponen penting dalam rantai makanan karena peranannya sebagai pemakan endapan (deposit feeder) dan pemakan materi tersuspensi (suspension feeder). Oleh karena itu diperlukan informasi yang memadai yang bisa dipakai untuk pengelolaan teripang secara berkelanjutan. Salah satu metode yang digunakan adalah dengan menggunakan sistem informasi geografis (SIG). Metode ini dapat digunakan untuk memudahkan dalam mengetahui lokasi penyebarannya, sehingga pengembangan dalam kegiatan budidaya teripang pasir (Holothuria scabra) dapat tercapai dengan optimal. Tujuan penelitian ini adalah menganalisis kesesuaian kawasan budidaya teripang menggunakan Aplikasi SIG yang disajikan dalam bentuk peta kesesuaian kawasan budidaya teripang pasir (H. scabra) di Perairan Lombok Barat. Penelitian ini dilaksanakan pada tanggal 17 Oktober 2016 – 27 November 2016 di Gili Asahan, Gili Layar dan Gili Gede Kecamatan Sekotong Barat Kabupaten Sekotong Barat Pulau Lombok Provinsi Nusa Tenggara Barat. Pengumpulan data dilakukan dengan metode survei, berupa data primer dan sekunder yang berkaitan langsung dengan hidup teripang. Berdasarkan parameter kimia hasil penelitian di Perairan Lombok Barat adalah: pH 6,82 – 7,50, salinitas 32 – 34 ppt dan DO 6,19 – 6,52 mg/L, lokasi kesesuaian lahan untuk kategori sangat sesuai terdapat di Gili Gede, kategori sesuai di Gili Asahan dan kategori tidak sesuai di Gili Layar.

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