scholarly journals SEBARAN DAN HABITAT JUVENIL UDANG PENAEID DI PERAIRAN KUBU RAYA,KALIMANTAN BARAT

2015 ◽  
Vol 6 (2) ◽  
pp. 77
Author(s):  
Dimas Angga Hedianto ◽  
Sri Endah Purnamaningtyas ◽  
Riswanto Riswanto
Keyword(s):  
Habitat Preference ◽  
Penaeid Shrimp ◽  
Distribution Patterns ◽  
White Shrimp ◽  
Nursery Ground ◽  
Beam Trawl ◽  
Substrate Type ◽  
West Kalimantan ◽  
Area Method ◽  
Life Cycle Pattern

Tingkat keterkaitan juvenil udang terhadap habitat dapat dijadikan salah satu dasar untuk penentuan kawasan daerah asuhan. Penelitian tentang sebaran dan keterkaitan antara juvenil udang penaeid dengan habitatnya dilakukan di perairan Kubu Raya, Kalimantan Barat pada bulan Juni, September, November (tahun 2012) dan bulan April, Juli, Oktober (tahun 2013). Pengambilan sampel dilakukan dengan metode sapuan (swept area method)menggunakan mini beam trawl. Indeks constancy dan fidelity digunakan untukmengetahui pola sebarandan derajat keterkaitan udang penaeid dengan habitatnya sebagai dasar penentuan daerah asuhan juvenil udang. Identifikasi juvenil udang diperoleh 3 genera dan 12 spesies. Kelimpahan total tertinggi berasal dari genus Metapenaeus (70,5%), diikuti genus Parapenaeopsis (29,3%) dan Fenneropenaeus (0,2%). Juvenil udang dari genera tersebut memiliki pola sebaran dan preferensi habitat yang berbeda karena memiliki perbedaan pola daur hidup. Juvenil udangwangkang (F. indicus)memiliki derajat keterkaitan dengan kategori sangat tinggi di perairan Tanjung Bunga Dalam, sedangkan derajat keterkaitan dengan kategorimediumterdapat di perairan Tanjung Intandan Pulau Dabung. Habitat daerah asuhan udangwangkang terutama terdapat di daerah estuari dengan kerapatan mangrove cukup tinggi, mendapat massa air tawar secara langsung dengan tipe substrat pasir bercampur lumpur dan serasah. Udang dogol putih (M. elegans) dan udang rotan (P.gracillima)memiliki derajat keterkaitan dengan kategori mediumdi perairan Tanjung Tempurung. Habitat daerah asuhan yang disenangi adalah daerah estuaria yang memiliki banyak masukan massa air tawar dan air laut atau sangat dipengaruhi oleh proses pasang-surut dengan tipe substrat terdiri dari lumpur dan pasir serta banyak serasah.Habitat preference of juvenile shrimps as an indicator to determine of main shrimp nursery ground. Study on distribution and habitat preference of juvenile penaeid shrimps in Kubu Raya waters,West Kalimantan were carried out on June, September, November (2012) and April, July, October (2013). Sampling was conducted with a sweep area method using a mini beam trawl. Distribution pattern and habitat preference of juvenile shrimps were analyzed by constancy and fidelity index. Identification of juvenile penaeid shrimp consisted of 3 genera and 12 species with the highest of total abundance from genus ofMetapenaeus (70.5%), followed by Parapenaeopsis (29.3%) and Fenneropenaeus (0.2%). Juvenile shrimp for those genera have different distribution patterns in certain habitats because of different life cycle pattern. The habitat preference of indian white shrimp juvenile (F. indicus) in the waters of Tanjung Bunga Dalam have very high category. Meanwhile, in the waters of Tanjung Intan and Pulau Dabung has medium category. The main nursery ground of F. indicus were estuaries with high enough of mangrove density and most affected by freshwater discharge with the dominant substrate type is sandas sandly mud and mix with litters. The habitat preference of Juvenile of fine shrimp (M. elegans) and thin shrimp (P. gracillima) have medium category in the waters of Tanjung Tempurung. The main nursery ground characterneeds estuaries that have a lot of freshwater and saltwater mass input depending on the tides with substrate type are mud, sand and mix with litters.

scholarly journals ASPEK BIOLOGI, SEBARAN, DAN DAERAH ASUHAN UDANG Metapenaeus dobsoni (MIERS, 1878) DI PERAIRAN ACEH TIMUR

2018 ◽  
Vol 23 (3) ◽  
pp. 153 ◽  
Author(s):  
Dimas Angga Hedianto ◽  
Astri Suryandari ◽  
Didik Wahju Hendro Tjahjo
Keyword(s):  
Coastal Area ◽  
Carapace Length ◽  
River Mouth ◽  
Penaeid Shrimp ◽  
Nursery Ground ◽  
Beam Trawl ◽  
Low Salinity ◽  
Bottom Waters ◽  
Biological Aspects ◽  
First Maturity

Udang Metapenaeus dobsoni (Miers 1878) atau dikenal sebagai udang halus/kapur merupakan jenis udang penaeid yang dominan tertangkap di pesisir perairan Aceh Timur. Penelitian yang dilaksanakan pada April dan September tahun 2014-2015 serta April 2016 di perairan Aceh Timur bertujuan untuk mengkaji beberapa aspek biologi, kepadatan stok dan sebarannya, serta menduga daerah asuhan udang Metapenaeus dobsoni yang berguna sebagai bahan masukan untuk pengelolaannya. Aspek biologi udang yang dianalisis meliputi hubungan panjang-berat, kebiasaan makanan, dan ukuran pertama kali matang gonad (Lm50). Pengambilan sampel untuk mengetahui sebaran Metapenaeus dobsoni dilakukan menggunakan metode sapuan dengan alat tangkap mini beam trawl di 25 stasiun yang mewakili daerah estuaria, sungai, dan pesisir. Udang Metapenaeus dobsoni memiliki pola pertumbuhan alometrik negatif dengan tingkat trofik sebagai detritivora. Ukuran pertama kali matang gonad dicapai pada ukuran panjang karapas 1,3 cm. Udang Metapenaeus dobsoni tergolong udang kosmopolit dan euryhaline, sehingga menyebar secara luas di sepanjang perairan Aceh Timur. Kepadatan stok udang Metapenaeus dobsoni pada fase juvenil dan udang muda banyak ditemukan di daerah sungai yang ditumbuhi mangrove dengan salinitas di dasar perairan yang relatif rendah dan substrat dominan berupa lumpur (fraksi debu dan liat). Di daerah muara (kuala) dan pesisir dengan substrat dominan pasir dan salinitas cukup tinggi banyak ditemukan udang pada fase muda hingga dewasa. Daerah asuhan utama udang Metapenaeus dobsoni terdapat di Kuala Arakundo.Metapenaeus dobsoni (Miers 1878) shrimp, locally called “udang halus/kapur”, is a dominant penaeid shrimp caught in the coastal waters of East Aceh. The research was conducted in April and September of 2014-2015 and April 2016 in East Aceh waters aims to assess some biological aspects, distribution, stock density, and nursery ground of the shrimp management. Analysis on biological aspects include length-weight relationship, food habits, and carapace length at first maturity (Lm50). Sampling to determine distribution of the species was based on swept area method using mini beam trawl. Total 25 sampling sites selected representing estuary, river, and coastal area, respectively. Metapenaeus dobsoni has negative allometric growth pattern with trophic level as detritivore. Size at first maturity the carapace length of 1.3 cm. Stock density of Metapenaeus dobsoni in the juvenile and adolescent phase commonly found in mangroves-covered river area with relatively low salinity at the bottom waters and have mud as dominant substrate (fraction of silt and clay). The adolescent to adult phase found in the estuary (river mouth) and coastal area with sand as dominant substrate and high salinity waters. The main nursery grounds of Metapenaeus dobsoni found in Kuala Arakundo.

scholarly journals Draft Genome Sequence of a Vibrio harveyi Strain Associated with Vibriosis in Pacific White Shrimp (Litopenaeus vannamei)

2017 ◽  
Vol 5 (7) ◽  
Author(s):  
Emille Moreno ◽  
Marci Parks ◽  
Lee J. Pinnell ◽  
James J. Tallman ◽  
Jeffrey W. Turner
Keyword(s):  
Genome Sequence ◽  
Litopenaeus Vannamei ◽  
Vibrio Harveyi ◽  
Draft Genome ◽  
Penaeid Shrimp ◽  
Pacific White Shrimp ◽  
Draft Genome Sequence ◽  
White Shrimp ◽  
Content Type ◽  
Future Studies

ABSTRACT Vibrio harveyi is a Gram-negative bacterium associated with vibriosis in penaeid shrimp. Here, we report the draft genome sequence of a V. harveyi strain isolated from Pacific white shrimp (Litopenaeus vannamei) during a vibriosis outbreak. The availability of this genome will aid future studies of vibriosis in shrimp aquaculture.

scholarly journals Habitat-preference in South African antelope species and its significance in natural and artificial distribution patterns

Koedoe ◽  
1974 ◽  
Vol 17 (1) ◽  
Author(s):  
U. De V. Pienaar
Keyword(s):  
South African ◽  
Habitat Preference ◽  
Distribution Patterns ◽  
Individual Species ◽  
Habitat Requirements ◽  
Unequal Distribution ◽  
Vegetation Zones ◽  
Herbivorous Mammals ◽  
The Individual ◽  
Artificial Introduction

The unequal distribution of species is due to different environmental conditions of the various regions of the globe. The environmental factors governing the occurrence, distribution and abundance of large herbivorous mammals may be divided into physical, historical and biotic. Vegetation is all-important in herbivore biology as it provides habitat, cover and food. Many of the distribution patterns and structural attributes of species are associated with living in and utilizing particular vegetation zones. Africa has an enormous diversity of habitats and animal species utilizing these habitats. An attempt is made to characterize the patterns of habitat preference of South African antelope species and the significance of the habitat requirements of the individual species is discussed in thelight of natural and artificial distribution patterns. It is stressed that artificial introduction of species without prior knowledge of the habitat requirements of such species may lead to disastrous consequences.

Organoleptic, Bacterial, and Chemical Characteristics of Penaeid Shrimp Subjected to Short-Term High-Temperature Holding

1977 ◽  
Vol 40 (4) ◽  
pp. 256-260 ◽  
Author(s):  
BRYANT F. COBB ◽  
CHIAPING S. YEH ◽  
FRANK CHRISTOPHER ◽  
CARL VANDERZANT
Keyword(s):  
Storage Temperature ◽  
Penaeid Shrimp ◽  
Enzymic Activity ◽  
White Shrimp ◽  
Short Term ◽  
Color Development ◽  
Red Color ◽  
Penaeus Setiferus ◽  
Urea Production ◽  
Orange Color

White shrimp (Penaeus setiferus) were held at 0, 10, 20, 30, 37, and 44 C for 3, 6, and 24 h. Serious quality deterioration, as evidenced by off-color development (red and orange pigmentation) and off-odor development, was beginning to occur in shrimp held for 3 h at 30, 37, and 44 C, for 6 h at 20 C and for 24 h at 10 C. Red color development was evident in shrimp held at 30 and 37 C, orange color in those held at 44 C. Putrid odors appeared more rapidly in shrimp held at 37 than at 44 C where shrimp developed cooked-shrimp odors. Large increases in bacterial counts at 30–44 C (after 6 and 24 h) were usually accompanied by putrid odors. Tissue pH changes were erratic and small. Total volatile nitrogen (TVN), free amino acid nitrogen (AA-N), and urea production increased with storage temperature during the 3- and 6-h storage experiments. Musty and cooked-shrimp off-odors developed in the shrimp as a result of chemical and/or enzymic activity while putrid and sour odors were produced by bacteria growing in the shrimp.

scholarly journals Distribution pattern and habitat preference of barking deer (Muntiacus muntjac Zimmermann) in Nagarjun forest, Kathmandu

1970 ◽  
Vol 4 (6) ◽  
pp. 70-74 ◽  
Author(s):  
Ajaya Nagarkoti ◽  
Tej Bahadur Thapa
Keyword(s):  
Distribution Pattern ◽  
Key Words ◽  
Habitat Preference ◽  
Rainy Season ◽  
Distribution Patterns ◽  
Pine Forest ◽  
Oak Forest ◽  
Schima Wallichii

The distribution pattern and habitat preference of barking deer (Muntiacus muntjac Zimmermann) were analyzed during spring and rainy seasons of 2005 in Nagarjun Forest, Kathmandu. A total of 14 observations (seven males and seven females), 247 pellets and 118 footprints of barking deer were recorded in the spring and 14 observations (nine males and five females), 151 pellets and 140 footprints were recorded during the rainy season. The result showed uneven or clumped distribution patterns for deer in both spring (S2√X = 331.03 > 1; Χ² = 331.02, p = 0.01) and rainy season (S2√X = 233.48 > 1; Χ² = 233.48, p = 0.01). Among four types of habitats (Schima wallichii forest, mixed broadleaved forest, pine forest and dry oak forest), the mixed broadleaved forest was much preferred in spring (RPI = 0.81) and pine forest during the rainy season (RPI = 0.15). Key words: Barking deer, Muntiacus muntjac, distribution, habitat preference, Nagarjun forest, Nepal Himalayan Journal of Sciences Vol.4(6) 2007 p.70-74

Size-related habitat use, aggregation patterns and abundance of anglerfish (Lophius budegassa) in the Mediterranean Sea determined by generalized additive modelling

2003 ◽  
Vol 83 (5) ◽  
pp. 1171-1178 ◽  
Author(s):  
Christos Maravelias ◽  
Costas Papaconstantinou
Keyword(s):  
Generalized Additive Models ◽  
Aegean Sea ◽  
Distribution Patterns ◽  
Habitat Associations ◽  
Additive Models ◽  
Seasonal Effects ◽  
Nursery Ground ◽  
Size Category ◽  
Aegean Area ◽  
Eastern Aegean

Spatial distribution patterns of black anglerfish, Lophius budegassa were examined in relation to size category, bathymetry, locational covariates, and season. Data were collected during a 2-y period (1998–1999) of quasi-synoptic seasonal sampling using demersal trawl surveys in the Aegean Sea. Generalized additive models (GAMs) were used to test the hypotheses that there was size-related variation in species' habitat associations and that the study area might serve as a nursery ground for black anglerfish. The current results supported these hypotheses. Data are presented that reveal size-dependent aggregation patterns of black anglerfish and an important habitat utilization of the north-eastern Aegean area. The modelled anglerfish abundances showed a strongly non-linear dependence on the explanatory covariates. The different size-classes exhibited significant seasonal effects and preferences for specific regions and distinct water depths. The present results also suggested that 1-y-old fish and potential spawners appeared to concentrate in the vicinity of the same areas. Two main areas of juvenile aggregations were detected in the deeper water regions of the study area on a seabed of around 300 m depth; both emerged in the proximity of the locations of larger fish. The bathymetric distribution of intermediate size anglerfish followed an inverse trend, with fish captured mainly in shallower waters. Results indicated a preferential aggregation of 1-y-old L. budegassa in the study area that is hypothesized to influence the supply of recruits to distant regions of the Aegean Sea.

BAC end sequencing of Pacific white shrimp Litopenaeus vannamei: a glimpse into the genome of Penaeid shrimp

2011 ◽  
Vol 30 (3) ◽  
pp. 456-470 ◽  
Author(s):  
Cui Zhao ◽  
Xiaojun Zhang ◽  
Chengzhang Liu ◽  
Pin Huan ◽  
Fuhua Li ◽  
...  
Keyword(s):  
Litopenaeus Vannamei ◽  
Penaeid Shrimp ◽  
Pacific White Shrimp ◽  
White Shrimp ◽  
Bac End Sequencing

Effect of High Temperature Holding and Ice Storage on Protein, Non-Protein Nitrogen, Water, and Collagen Content of Penaeid Shrimp

1977 ◽  
Vol 40 (4) ◽  
pp. 252-255 ◽  
Author(s):  
WUNWIBOON WILAICHON ◽  
BRYANT F. COBB ◽  
DWAYNE A. SUTER ◽  
THAYNE R. DUTSON
Keyword(s):  
Water Content ◽  
Storage Temperature ◽  
Penaeid Shrimp ◽  
Collagen Content ◽  
White Shrimp ◽  
Ice Storage ◽  
Initial Water ◽  
Protein Nitrogen ◽  
Penaeus Setiferus ◽  
The Relationship

Five different sample lots of white shrimp (Penaeus setiferus) were divided into two groups. One group was kept at room temperature (23–24 C) and the other on ice until putrid odors began to appear. Protein and non-protein nitrogen (NPN), water, and collagen contents were measured initially and when putrid odors began to appear. Initial protein content ranged from 14.04–16.93% and water content ranged from 68.24–77.31% Initial water and protein [(Total Nitrogen - NPN) × 6.25] had the relationship % water = 122.25 – 3.19(% protein), r = 0.998). At 23–24 C the NPN to TN ratio increased significantly (p < 0.01) in two lots and slightly in one lot. In ice stored shrimp NPN and protein nitrogen decreased by an average amount of 50% and 25%, respectively. During ice storage, water content increased significantly in all three lots of shrimp. Initial total collagen content ranged from 6.71–8.83 mg/g with the %soluble ranging from 11.92–45.22%. Soluble collagen increased significantly in two lots and decreased significantly in one lot at both room and ice-storage temperature.

scholarly journals Kajian Struktur Komunitas Krustasea Pada Kondisi Lingkungan Mangrove Di Desa Tireman Kabupaten Rembang

2020 ◽  
Vol 9 (4) ◽  
pp. 393-398
Author(s):  
Via Jeanieta Berliana Ardyatma ◽  
Sunaryo Sunaryo ◽  
Hadi Endrawati
Keyword(s):  
Environmental Parameters ◽  
Distribution Patterns ◽  
Research Station ◽  
Nursery Ground ◽  
Ecological Functions ◽  
Purposive Sampling ◽  
Feeding Ground ◽  
Plot Sampling ◽  
Mangrove Vegetation ◽  
Sampling Plot

ABSTRACT: Mangrove ecosystems are ecosystems located in coastal areas that are affected by tides so that the bases are always flooded. Mangroves have ecological functions that can support the growth of organisms in them. The ecological functions include nursery ground, feeding ground, and spawing ground for organisms living in it, one of which is crustaceans. The Rembang coastal area is used by the surrounding community to change the function of mangrove vegetation land into a pond area so that it can affect the existence of crustaceans. This study aims to determine the structure of the crustacean community including composition, abundance, diversity, uniformity, dominance, and distribution patterns of mangrove vegetation in Tireman Village, Rembang District, Rembang Regency. The study was conducted in April - May 2019. The method of determining the location using purposive sampling. Sampling uses a qualitative method with a 5x5 meter sampling plot with three repetitions. The material used is crustacean community structure data and environmental parameters. The results obtained were found 10 types from 4 families originating from 2 infra-orders (Brachyura and Anomura). The highest abundance is found in Station B of 1.59 individuals / m2. Diversity individuex is low to moderate (H '= 0.98 - 1.28) and uniformity individuex is low (e = 0.21 - 0.27), and there is no dominance at each research station (C = 0.34 - 0.47). The type of distribution pattern that is found is clustered (clumped). ABSTRAK: Ekosistem mangrove merupakan ekosistem yang terdapat pada daerah tepi pantai yang dipengaruhi oleh pasang surut air laut sehingga dasarnya selalu tergenang air. Mangrove mempunyai fungsi ekologi yang dapat menunjang pertumbuhan organisme yang ada di dalamnya. Fungsi ekologi tersebut meliputi nursery ground, feeding ground, dan spawing ground bagi organisme yang tinggal di dalamnya salah satunya krustasea. Wilayah pesisir Rembang dimanfaatkan oleh masyarakat sekitar untuk alih fungsi lahan vegetasi mangrove menjadi areal tambak sehingga dapat mempengaruhi keberadaan krustasea. Penelitian ini bertujuan untuk mengetahui struktur komunitas krustasea meliputi komposisi, kelimpahan, keanekaragaman, keseragaman, dominansi, dan pola sebaran pada vegetasi mangrove Desa Tireman Kecamatan Rembang Kabupaten Rembang. Penelitian dilaksankan pada bulan April – Mei 2019. Metode penentuan lokasi menggunakan purposive sampling. Pengambilan sampel menggunakan metode kualitatif dengan plot sampling 5x5 meter dengan tiga kali pengulangan. Materi yang digunakan adalah data struktur komunitas krustasea dan parameter lingkungan. Hasil penelitian yang diperoleh ditemukan 10 jenis dari 4 famili yang berasal dari 2 infra ordo (Brachyura dan Anomura). Kelimpahan tertinggi terdapat pada Stasiun B sebesar 1,59 individu/m2. Indeks keanekaragaman termasuk kategori rendah hingga sedang (H' = 0,98 – 1,28) dan indeks keseragaman kategori rendah (e = 0,21 – 0,27), dan tidak ada dominansi di setiap stasiun penelitian (C = 0,34 – 0,47). Pola sebaran jenis yang dijumpai yaitu mengelompok (clumped).

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