Slipper lobsters (Scyllaridae) off the southeastern coast of Brazil: relative growth, population structure, and reproductive biology

Duarte, Luís Felipe de Almeida; Severino-Rodrigues, Evandro; Pinheiro, Marcelo Antônio Amaro; Gasalla, Maria A.

doi:10.7755/fb.113.1.6

Cited by 7 publications

(8 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Assim, as áreas de maior densidade das lagostas vermelha e verde são as mais exauridas no decorrer da temporada, o que não afeta fortemente a abundância da lagosta sapata, havendo um suprimento contínuo de novos indivíduos para as áreas de pesca. Neste sentido, é importante mencionar que fêmeas de Scyllarides deceptor, espécie com especiação simpátrica com S. brasiliensis em grande parte da costa brasileira, migram para áreas mais rasas para a eclosão dos ovos, ficando assim mais disponíveis para as pescarias (DUARTE et al, 2010(DUARTE et al, , 2015; b) as artes de pesca utilizadas para a captura das lagostas espinhosas são pouco eficientes para a captura da lagosta sapata. Portanto, os níveis de mortalidade por pesca não seriam suficientemente altos para resultar em um decréscimo significativo da densidade do recurso no decorrer da temporada de pesca destas lagostas.…”

Section: Discussionunclassified

Variações nas capturas das lagostas vermelha (Panulirus meripurpuratus), verde (Panulirus laevicauda Latreille, 1817) e sapata (Scyllarides brasiliensis Rathbun, 1906) na costa de Pernambuco

Lima

Andrade

2017

Bol. Inst. Pesca

View full text Add to dashboard Cite

Lobsters are valuable fisheries resources in the northeast coast of Brazil. In the Pernambuco state the catches of the red (Panulirus meripurpuratus) and the green (Panulirus laevicauda) spiny lobsters are high, while the catches of the slipper lobster (Scyllarides brasiliensis) is low. In this study the variability of the monthly and annual catches of those three species were analyzed with data obtained between 1999 and 2006. Overall the red lobster predominates in the catches. Catch of the red and the green lobsters decrease quickly starting from the beginning of the fishery after the closed season, but this do not occur for slipper lobster. Total annual catches of small or intermediate length boats were higher than summed catches of large boats. São José da Coroa Grande, followed by Recife, is the city with highest catches. There was spatial zonation concerning the proportions of the three species in the annual catches. The red lobster is largely dominant in the catches of the south coast, where the slipper lobster is not uncommon. In the north coast catches the slipper lobster are rare and the proportion of green lobster is high and similar to the proportion of the red lobster. RESUMOLagostas são valiosos recursos pesqueiros na costa nordeste do Brasil. No estado de Pernambuco, as capturas das lagostas vermelha (Panulirus meripurpuratus) e verde (Panulirus laevicauda) foram elevadas, enquanto as da lagosta sapata (Scyllarides brasiliensis), reduzidas. Neste artigo, as variações mensais e anuais das capturas foram analisadas nos desembarques das três espécies entre 1999 e 2006. De maneira geral, a lagosta vermelha foi predominante. As capturas das lagostas vermelha e da verde decresceram rapidamente a partir do início da temporada de pesca, logo após o defeso, padrão esse não observado para a lagosta sapata. As capturas anuais provenientes das embarcações de comprimento pequeno ou intermediário foram maiores que as das embarcações de maior porte. São José da Coroa Grande, seguida do Recife, foi a cidade em que se verificaram as maiores quantidades desembarcadas. Houve zonação espacial no que diz respeito às proporções das três espécies nas capturas anuais. A lagosta vermelha foi amplamente dominante nas capturas da costa sul, onde a sapata não foi incomum. Na costa norte, a lagosta sapata foi rara, e a proporção de lagosta verde foi alta e similar à da lagosta vermelha.Palavras-chave: lagostas espinhosas; lagosta sapata; zonação.

show abstract

Section: Discussionunclassified

Variações nas capturas das lagostas vermelha (Panulirus meripurpuratus), verde (Panulirus laevicauda Latreille, 1817) e sapata (Scyllarides brasiliensis Rathbun, 1906) na costa de Pernambuco

Lima

Andrade

2017

Bol. Inst. Pesca

View full text Add to dashboard Cite

show abstract

“…Demikian juga, MacDiarmid (1991) menyatakan bahwa keragaman proporsi jantan dan betina diduga terkait dengan tidak meratanya tekanan pemanfaatan yang berkaitan dengan tingkah laku lobster. Perubahan tingkah laku tersebut antara lain proses pergantian kulit (moulting), masa reproduksi dan aktivitas memangsa (MacDiarmid, 1991;Duarte et al, 2015).…”

Section: Bahasanunclassified

DISTRIBUSI UKURAN PANJANG DAN PARAMETER POPULASI LOBSTER LUMPUR (Panulirus polyphagus Herbst, 1793) DI PERAIRAN SEBATIK, KALIMANTAN UTARA (WPPNRI-716)

Chodrijah

Priatna

Nugroho³

2018

JURNAL PENELITIAN PERIKANAN INDONESIA

View full text Add to dashboard Cite

Sumberdaya udang barong lumpur (Panulirus polyphagus Herbst, 1793) atau dalam bahasa lokal dikenal sebagai lobster Pakistan telah dimanfaatkan sebagai salah satu komoditas yang bernilai ekonomis di perairan pulau Sebatik, Kalimantan Utara. Data statistik perikanan menunjukkan produksi udang barong di perairan Timur Kalimantan tahun 2005 – 2015 meningkat pesat dengan kelipatan 10 kalinya. Terkait dengan fenomena tersebut, penelitian tentang aspek biologi populasi telah dilakukan pada bulan Maret sampai dengan November 2016. Penelitian ini bertujuan untuk mendapatkan parameter populasi sebagai landasan untuk mengetahui status stok pada tingkat pemanfaatan terkini. Hasil penelitian menunjukkan udang betina tertangkap pada ukuran rata-rata 86,9+ 8,58 mmCL sedangkan udang jantan pada ukuran 81,5 + 9,63 mmCL. Pola pertumbuhan udang jantan dan betina bersifat allometrik negatif (b<3). Estimasi panjang asimtotis (CL) sebesar 124,1 mm dengan laju pertumbuhan (K) 0,598/tahun. Rata-rata ukuran pertama tertangkap (CLc) adalah 84,5 mmCL. Nilai tersebut lebih rendah dari pertama kali matang gonad (CLm) sebesar 90,74 mmCL. Laju kematian total (Z) sebesar 2,26/tahun, laju kematian alamiah (M) 0,87/tahun serta laju kematian akibat penangkapan (F) 1,39/tahun. Estimasi laju eksploitasi cenderung mengarah kepada penangkapan berlebih (E = 0,61), oleh karena itu perlu dilakukan tindakan pengelolaan melalui pendekatan pengendalian upaya penangkapan dan pembatasan ukuran minimum yang boleh ditangkap. Mud spiny lobster (Panulirus polyphagus Herbst, 1793) or locally known as Pakistan lobster has been exploited as an important economic species in the waters of Sebatik Island, North Kalimantan. The best available capture fisheries statisticon 2005-2015 indicates the production of marine lobster were significantly increased by 10. Based on this phenomenon, observations on biological aspects were carried out during period of March to November 2016. The aim of this study were to estimate of stock status under existing fisheries condition. The result showed that the average size of females was 86.9+ 8.58 cmCL and males was 81.5 + 9.63 mmCL. The growth pattern indicates allometric negative (b<3). Population parameter performed by length based analysis indicates that asymptotic length (CL) was 124.1 mmCL with growth rate (K) of 0.598/yr.The average size of first capture (Lc) was estimated at 84.5 mmCL. This value was less than average size of first mature (CLm) of 90.7 cmCL.The predicted annual total mortality rates (Z) was 2.26/yr, the natural mortality (M) was 0.87/yr, and fishing mortalities (F) was 1.39/yr. The exploitation rates (E) of 0.61 tend to be beyond the sustainable exploitation level. To reduce the fishing mortality, the initiative of specific local management plan on restructuring active fleet and establishing minimum legal size should be implemented.

show abstract

“…Menurut Radhakrishnan (2013), lobster pasir yang bernilai ekonomi tinggi di India berumur lebih dari 2 tahun pada jantan dan 1,5 tahun pada betina. stok sebagaimana pernah terjadi di perairan India (Kagwade & Kabli, 1996;Duarte et al 2015;Deshmukh, 2001). Habitat lobster pasir berada pada perairan dengan kedalaman 10 hingga lebih dari 200 m pada substrat lumpur maupun lumpur berpasir (FAO, 1998).…”

Section: Pendahuluanunclassified

“…Kajian tentang stok lobster pasir (T. orientalis) pernah dilakukan pada beberapa perairan diantaranya di pantai Queensland, perairan Bombaydan Brazil (Courtneyet al,2001;Kagwade & Kabli, 1996;Duarte et al, 2015). Penelitian lobster pasir diLaut Jawa belumbanyakdilakukan.Informasi kepadatan dan biologi diperlukan sebagai dasar dalam pengelolaannya.…”

Section: Pendahuluanunclassified

See 1 more Smart Citation

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

Slipper lobsters (Scyllaridae) off the southeastern coast of Brazil: relative growth, population structure, and reproductive biology

Abstract: Abstract-The hooded slipper lobster (Scyllarides deceptor) and Brazilian slipper lobster (S. brasiliensis) are commonly caught by fishing fleets (with double-trawling and longline pots and traps) off the southeastern coast of Brazil.

Cited by 7 publications

References 27 publications

Variações nas capturas das lagostas vermelha (Panulirus meripurpuratus), verde (Panulirus laevicauda Latreille, 1817) e sapata (Scyllarides brasiliensis Rathbun, 1906) na costa de Pernambuco

Variações nas capturas das lagostas vermelha (Panulirus meripurpuratus), verde (Panulirus laevicauda Latreille, 1817) e sapata (Scyllarides brasiliensis Rathbun, 1906) na costa de Pernambuco

DISTRIBUSI UKURAN PANJANG DAN PARAMETER POPULASI LOBSTER LUMPUR (Panulirus polyphagus Herbst, 1793) DI PERAIRAN SEBATIK, KALIMANTAN UTARA (WPPNRI-716)

KEPADATANSTOKDANASPEKBIOLOGI LOBSTERPASIR (Thenus orientalis) DI LAUT JAWA

Contact Info

Product

Resources

About