Length-Weight Relationship in Some Common Prawns and Lobsters (Macrura, Natantia and Reptantia) From the Western Indian Ocean

Ivanov, B.G.; Крылов, В. В.

doi:10.1163/156854080x00193

Cited by 14 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Total length of M. monoceros (measured at 1.0 mm scale) was used as basic data for morphometric and biological studies. For length-weight relationship (LWR), shrimps were weighed up to 1.0 g accuracy and LWR were derived individually for the representative samples collected from NW, SW and NE zones using standard techniques (Ivanov and Krylov, 1980). Size at first maturity (Lm 50 ) for males and females from individual samples representing the geographic zones were estimated by fitting a logistic curve (King, 1995).…”

Section: Fishery and Biologymentioning

confidence: 99%

Population dynamics of the geographically defined metapopulations of brown shrimp Metapenaeus monoceros (Fabricius, 1798) from Indian waters

et al. 2022

View full text Add to dashboard Cite

Population dynamics of the brown shrimp Metapenaeus monoceros (Fabricius, 1798) was studied along the Indian coast using catch and effort data of trawlers from 8 States and 2 Union Territories for the period 2007-2015. Classical length-based stock assessment methods and spatial database of the shrimp catch were used to derive fishing ground related conclusions. Inclusion of spatial data revealed the possibility of existence of metapopulations of M. monoceros in the region. Maximum sustainable yield (MSY) cannot be a reasonable reference point for deciding the fishing pressure in M. monoceros. By analysing stock fluctuations noticed during the study period with varying spawning stock biomass combinations, retention of 40% spawning biomass seems to be a safe option for sustaining M. monoceros production from Indian waters. Based on this, the study recommends reduction of fishing pressure along north-west, south-west and northeast coast by 70, 60 and 70% respectively from the base level of effort in 2017. The study illustrates that the spatial data from fishing ground, can serve as an additional tool to derive management options. The study also emphasises the need for further investigations on the possibilities of metapopulations of M. monoceros which is widely distributed in all agro-climatic zones along the Indian coast. Keywords: Indian coast, Metapopulation, M. monoceros, Spatial study, Stock assessment

show abstract

Section: Fishery and Biologymentioning

confidence: 99%

Population dynamics of the geographically defined metapopulations of brown shrimp Metapenaeus monoceros (Fabricius, 1798) from Indian waters

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Jenis lobster ini terlaporkan sebagai salah satu hasil tangkapan penting oleh alat trawl di Samudera Hindia dan bagian barat Samudera Pasifik (Ivanov & Krylov, 1980). Menurut Radhakrishnan (2013), lobster pasir yang bernilai ekonomi tinggi di India berumur lebih dari 2 tahun pada jantan dan 1,5 tahun pada betina.…”

Section: Pendahuluanunclassified

KEPADATANSTOKDANASPEKBIOLOGI LOBSTERPASIR (Thenus orientalis) DI LAUT JAWA

Tirtadanu

Kembaren²,

Suprapto³

2017

BAWAL Widya Riset Perikanan Tangkap

View full text Add to dashboard Cite

ABSTRAKInformasi kepadatan stok dan asepk biologi lobster pasir di Laut Jawa merupakan informasi penting dalam melakukan pengelolaan yang rasional. Jenis lobster ini rentan mengalami penurunan populasi disebabkan lambatnya pertumbuhan dan rendahnya fekunditas. Penelitian ini bertujuan untuk mengkaji kepadatan stok dan aspek biologi lobster pasir. Penelitian kepadatan stok dan biologi lobster pasir dilakukan pada bulan Oktober dan November 2015 dengan menggunakan Kapal Latih dan Riset Madidihang-02. Penentuan kepadatan stok mengggunakan metode sapuan area dengan alat tangkap trawl yang dioperasikan pada 39 stasiun penelitan dengan waktu hauling satu jam per stasiun. Hasil penelitian diperoleh bahwa kepadatan stok lobster pasir dipengaruhi oleh kedalaman dan jenis substrat dasar. Kepadatan tinggi ditemukan pada habitat dengan substrat pasir dan kedalaman antara 10-30 m. Rata-rata kepadatan stok sebesar 15,65 ± 6,73 kg/km 2 dan laju tangkap 0,6 ± 0,27 kg/jam. Modus ukuran panjang karapas lobster jantan dan betina masing-masing sebesar 55 mm dan 65 mm. Pola pertumbuhan lobster bersifat allometrik negatif. Rasio kelamin menunjukkan kondisi tidak seimbang dengan jumlah lobster jantan yang lebih dominan. Tingkat Kematangan Gonad lobster betina didominasi oleh lobster belum matang gonad (stadia I dan II). Keywords: Biology; habitat; density; sand lobster; Java Sea PENDAHULUANLobster pasir (Thenus orientalis) merupakan salah satu jenis lobster yang memiliki nilai ekonomi penting. Jenis lobster ini terlaporkan sebagai salah satu hasil tangkapan penting oleh alat trawl di Samudera Hindia dan bagian barat Samudera Pasifik (Ivanov & Krylov, 1980). Menurut Radhakrishnan (2013), lobster pasir yang bernilai ekonomi tinggi di India berumur lebih dari 2 tahun pada jantan dan 1,5 tahun pada betina.Lobster pasir (Thenus orientalis) termasuk dalam famili Scyllaridae, memiliki laju pertumbuhan lambat dan fekunditas rendah sehingga rentan mengalami penurunan

show abstract

“…Metapenaeus affinis and Parapenaeopsis stylifera (Farmer, 1986). On the other hand no sexual dimorphism in size was found in P. semisulcatus (Abdel Razek, 1974;ElHady et al, 1990;Yassin, 1992;Sallam, 1993;Zaghloul, 1995), Penaeus japonicus (Abdel Razek, 1974;Zaghloul, 1995), Penaeus latisulcatus (Ivanov and Krylov, 1980;Yassin, 1992).…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%

Sexual Size Dimorphism On Some Penaeid Shrimp In Sudanese Red Sea

Ahmed¹

2017

Journal of Agricultural, Environmental and Veterinary Sciences

View full text Add to dashboard Cite

In Sudanese RedSea, Shrimp Morphometric relations were undertaken, on some penaeid species: Penaeus monodon, Penaeus indicus, Penaeus semisulcatus, Metapenaeus monoceros, Trachypenaeus curvirostris and Metapenaeus stebbingi. Females were larger than males in all studied species, the largest species was P. semisulcatus and the smallest one was Trachypenaeus curvirostris, which was 6g maximam weight during the study. Table1. Some of body measurements Sexualdimorphism obtained in all morphometric measurements of P. semisulcatus and T. curvirostris. However, no sexualdimorphism in P. monodons’ morphometric measurements, in M. monoceros sexualdimorphism in length measurements and in P. indicus only in total length. The length weight relationship of studied shrimps differs according to the sex. Both sexes of T. curvirostris and P. semisulcatus shows sexual dimorphism in total length, carapace length and body weight, in P. monodon was no sexual dimorphism, P. indicus sexual dimorphism was in length measurements and in M. monoceros only in body weight.

show abstract

Length-Weight Relationship in Some Common Prawns and Lobsters (Macrura, Natantia and Reptantia) From the Western Indian Ocean

Cited by 14 publications

References 0 publications

Population dynamics of the geographically defined metapopulations of brown shrimp Metapenaeus monoceros (Fabricius, 1798) from Indian waters

Population dynamics of the geographically defined metapopulations of brown shrimp Metapenaeus monoceros (Fabricius, 1798) from Indian waters

KEPADATANSTOKDANASPEKBIOLOGI LOBSTERPASIR (Thenus orientalis) DI LAUT JAWA

Sexual Size Dimorphism On Some Penaeid Shrimp In Sudanese Red Sea

Contact Info

Product

Resources

About