scholarly journals Growth and Distribution of Frequency Long Fish (Decapterus sp) Catching Products In Iner And Outside Waters Of Bara Buru District - Maluku

2020 ◽  
Vol 13 (2) ◽  
pp. 310
Author(s):  
Abdussabar Polanunu ◽  
Samsia Umasugi ◽  
M. Chairul Basrun Umanailo
Keyword(s):  
Frequency Distribution ◽  
Catchment Area ◽  
Average Length ◽  
Standing Stock ◽  
Distribution Patterns ◽  
Fish Length ◽  
Fishing Gear ◽  
Long Line ◽  
Pelagic Fishing ◽  
Traditional Fishing

The waters of Bara Bay as one of the small pelagic fishing areas in Buru Regency have considerable potential. Fishing efforts carried out by small fishermen using traditional fishing gear such as gill nets and long line have changed along with the development of fishing technology so that studies are needed related to standing stock and the dynamics of fish resource populations. This study aims to determine the growth and frequency distribution patterns of Layang fish (Decapterus sp) and to compare body lengths of fish caught outside the bay and in the bay of Bara. The result study showed that the highest frequency distribution of Layang (Decapterus sp) fish was outside the bay at 208-218 mm, and the location in the bay was 168-179 mm in length. The growth pattern of Layang fish (Decapterus sp) at both catchment locations (Outside Bay and in the bay) is negative allometric meaning that the length growth is faster than the weight growth.The relationship between fish length and weight was very strong with value R = 0.995 at the Outside Bay catchment area and an R = 0.983 value at the Inside Bay catchment location. There is a difference in the length of the Layang fish (Decapterus sp) caught outside the bay and inside the bay with a significant value of p<0.05 where the average length of the Layang fish (Decapterus sp) outside the Bay is greater (215.876 mm) than the average length of Layang fish (Decapterus sp) in the inside Bay (193.661 mm).

Production and Biomass of Pokea Clam (Batissa violacea var. celebensis von Martens, 1897) in the Langkumbe River Waters North Buton Southeast Sulawesi

2021 ◽  
Vol 5 (1) ◽  
pp. 14-24
Author(s):  
Tri Abdul Rahman ◽  
Bahtiar Bahtiar ◽  
Pramono Hery Santoso
Keyword(s):  
Sampling Method ◽  
Total Sample ◽  
Dry Mass ◽  
Annual Production ◽  
Fishing Gear ◽  
River Waters ◽  
The People ◽  
Length Width ◽  
Traditional Fishing ◽  
Swept Area

Langkumbe River is located in West Kulisusu District and has long been used by the community for various daily activities. One of the resources often used by the people around Langkumbe River is pokea clams. The aim of this study was to determine the production and biomass of pokea clams (B. violacea) in Langkumbe River Waters of North Buton Regency from August to October 2017. The sampling method used was swept area method using a traditional fishing gear "Tangge" (fishing gear). The samples were measured for the length, width and thickness.  The total weight was measured with the clam/total mass (MT) and the weight of the meat. The samples were dried using an oven for 24 hours at 70 °C to obtain the shell-free dry mass (SFDW). Data were analyzed using standard formulas. The total sample obtained was 1.307 individuals. The highest density of pokea clam was found in August at 596.8 ind/m². Annual production of pokea clam (B. violacea) in Langkumbe River with a total annual production of 1,107.33 gSFDW/m2/year. The highest and lowest production are 297.09 gSFDW/m²/year at size 2.19-2.54cm and -0.16 gSFDW /m²/year at size 4.70-5.05cm, respectively. The total population biomass was 528.03 gSFDW/m2 with the highest biomass 171.72 gSFDW/m²/year at size 2.55-2.90 cm and the lowest was 1.40 gSFDW /m²/year at size 4.70-5.05 cm, so that the recovery rate (P/B ratio) was 2.1 gSFDW/m2/year.

An alternative to modern salmon fishing gear

Fisheries ◽  
2021 ◽  
Vol 2021 (1) ◽  
pp. 99-102
Author(s):  
Oleg Telyatnik
Keyword(s):  
Work Experience ◽  
Fishing Gear ◽  
New Developments ◽  
Traditional Fishing

Based on the study of work experience in the areas of p.o. Kamchatka in the work proposed alternative fishing tools for salmon fishing. Under the alternative in the work are called fishing tools that are not widely used or are new developments. The use of such fishing gear will make it possible to catch elk in areas where traditional fishing is not currently conducted. However, this is important due to the approach of salmonids, in 2020, to traditional fishing areas.

scholarly journals Bioecology of Manggabai Fish (Glossogobius giuris) in Limboto Lake

2020 ◽  
Vol 4 (2) ◽  
pp. 89
Author(s):  
Dewi Nuryanti Fazrin ◽  
Hasim Hasim ◽  
Juliana Juliana
Keyword(s):  
Fishing Gear ◽  
Residential Areas ◽  
Chemical Parameters ◽  
Fish Traps ◽  
Physical And Chemical Parameters ◽  
Glossogobius Giuris ◽  
Net Cages ◽  
Physical And Chemical ◽  
Traditional Fishing ◽  
The Relationship

The purpose of this study was to determine the relationship between the length and weight of Manggabai fish (Glossogobius giuris) and to know the relationship between the presence of Manggabai fish (Glossogobius giuris) and water quality in Limboto Lake. This research was conducted in February 2019, located in the waters of Lake Limboto, Gorontalo Province. The method used in determining the location of sampling is Purposive Sampling. Fish sampling is determined by considering fishing locations, litoral areas, the presence of residential areas, agricultural and plantation areas, the existence of floating net cages and in the middle of the lake. The study was conducted at 20 observation stations using fish traps in the form of bamboo and used motorcycle tires that have been modified and become traditional fishing gear. The results showed that the physical and chemical parameters in Lake Limboto and showed temperature values ​​ranged from 29.77 to 31.630C, dissolved oxygen levels ranged from 2.1 to 5.48 ppm, pH ranged from 7.09 to 8.94, TDS ranging from 0.251 to 0.369, Nitrite Levels 0.04-0.08 ppm, Nitrate Levels 1.2-4.7 ppm, BOD ranges from 2.5-57 ppm and phosphate levels 0.1-1.14 ppm. The relationship between length and body weight of fish are allometric, where W = 0.8769 L10,023 and constant b (10,023)> 3.

scholarly journals Size and Ambundance of glass eel Anguilla spp in mouth of Poigar River

2019 ◽  
Vol 7 (1) ◽  
pp. 212
Author(s):  
Kristanto R. Lumi ◽  
Victor N. R. Watung ◽  
Nego E. Bataragoa
Keyword(s):  
River Flow ◽  
Average Length ◽  
Sampling Site ◽  
River Estuary ◽  
Average Density ◽  
Fishing Gear ◽  
Sampling Area ◽  
Glass Eel ◽  
Phase Sampling ◽  
New Moon

The  aims of this study are determine the composition of the length and abundance of glass eel Anguilla spp that migrates at the mouth of the Poigar River. Sampling is done every month for four months in the new moon phase. Sampling site on one side of the Poigar River estuary, by making a 10 meter track in the direction of the river flow. The fishing gear used is a triangle-shaped handy scoop net with a length of 100 cm and a width of 75 cm. The catch of Glass eel eel for four months (from April to July 2018) as many as 3,551 individuals. Average length (± SD) in April was 44.4 ± 1.4 cm, May 48.7 ± 1.6 cm, June 51.1 ± 2.0 cm and July 51.1 ± 2.4 cm. The highest number of catches in May was 1,841 individuals, followed by June 785, July 860 individuals and April as many as 55 individuals. The average density of eels in April, Mai, June and July 2018 migrating in the sampling area of 10 x 0.7 meters is 1,160 individuals.Keywords: glass eel, size, abundance, Poigar River.ABSTRAKPenelitian ini bertujuan untuk mengetahui komposisi ukuran panjang dan kelimpahan  ‘‘glass eel’’ sidat Anguilla spp yang bermigrasi di muara Sungai Poigar.  Pengambilan sampel dilakukan setiap bulan selama empat bulan pada  fase  bulan baru. Tempat sampling  pada  satu sisi muara Sungai Poigar, dengan membuat lintasan sepanjang 10 meter searah aliran sungai. Alat tangkap yang digunakan adalah seser (handy scoop net) berbentuk segitiga dengan panjang 100 cm dan lebar 75 cm. Hasil tangkapan Glass eel sidat selama empat bulan (dari bulan April sampai Juli 2018) sebanyak 3.551 individu.  Rata-rata  panjang (± SD) pada bulan April 44,4±1,4 cm, Mei 48,7±1,6 cm, Juni 51,1±2,0 cm dan Juli 51,1±2,4 cm.  Jumlah tangkapan terbanyak pada bulan Mei 1.841 individu, diikuti bulan Juni 785, bulan Juli 860 individu dan bulan April sebanyak 55 individu.  Rata-rata kepadatan sidat pada bulan April, Mai, Juni dan Juli 2018 yang bermigrasi dalam wilayah sampling 10 x 0,7 meter adalah 1.160 individu.Kata kunci: glass eel, ukuran, kelimpahan, Sungai Poigar.

scholarly journals Pengaruh umpan buatan warna merah dan kuning terhadap hasil tangkapan pancing pompa di perairan pantai Desa Bajo, Kabupaten Minahasa Selatan

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Hermanus B. Usili ◽  
Ivor L. Labaro ◽  
Mariana E. Kayadoe
Keyword(s):  
Reef Fishes ◽  
Experimental Methods ◽  
Demersal Fish ◽  
Fishing Gear ◽  
Traditional Fishing ◽  
Demersal Fishes ◽  
Parrot Fish

ABSTRACT Pump handline is a traditional fishing gear commonly used by fishermen in the Gulf Amurang to catch demersal fishes/reef fishes. This handline uses artificial baits made of fiber cloth of different colors, and an effective bait color is unknown yet. This research aims to study the effect of artificial bait colors on the pump handline catches, and to identify the species. This research was conducted through experimental methods by operating four pump handline units using red and yellow artificial baits starting at 07:00 am until 14:00 pm. The catches were 33 fishes, consisting of 23 fishes caught with red baits and 10 fishes caught with yellow baits. The results showed that red and yellow artificial baits on the pump handline had different number of catches, the average catches per hour of the respective bait colors were 3.83 (4 fishes) and 1.67 (2 fishes). The catch species consisted of 17 species, and was predominated by groupers, parrot fish, snappers and goat fish. Keywords: pump handline, artificial bait, demersal fish/reef fishes.   ABSTRAK Pancing pompa merupakan alat tangkap ikan tradisional yang umum dioperasikan oleh nelayan di Teluk Amurang untuk menangkap jenis-jenis ikan demersal/ikan-ikan karang. Umpan yang digunakan adalah umpan buatan dari serat kain yang warnanya bervariasi, dan warna umpan yang efektif belum diketahui. Sehingga tujuan penelitian ialah mempelajari pengaruh warna umpan buatan terhadap hasil tangkapan pancing pompa dan mengidentifikasi jenis-jenis ikan yang tertangkap. Penelitian ini dilakukan melalui metode eksperimental dengan mengoperasikan empat unit pancing pompa yang menggunakan umpan buatan warna merah dan kuning pada pukul 07.00 hingga pukul 14:00 Wita. Hasil tangkapan yang diperoleh berjumlah 33 ekor ikan, terdiri dari 23 ekor tertangkap dengan umpan buatan warna merah dan 10 ekor tertangkap dengan umpan buatan warna kuning. Hasil analisis menyimpulkan bahwa umpan buatan warna merah dan warna kuning pada pancing pompa ternyata berbeda, karena umpan warna merah mendapatkan hasil rata-rata 3,83 (4 ekor) per jam, sedangkan umpan warna kuning rata-rata 1,67 (2 ekor) per jam. Jenis-jenis ikan yang tertangkap dengan pancing pompa terdiri dari 17 spesies, dan didominasi oleh goropa, kakatua, gorara dan biji nangka. Kata-kata kunci: pancingpompa,  umpan buatan, ikandemersal/ikankarang

scholarly journals The necessitive impersonal REIK(Ė)TI ‘need’: the rise of modal meaning

2017 ◽  
pp. 1-27
Author(s):  
Erika Jasionytė-Mikučionienė ◽  
Jolanta Šinkūnienė
Keyword(s):  
Quantitative Analysis ◽  
Qualitative Study ◽  
Qualitative Analysis ◽  
Frequency Distribution ◽  
Distribution Patterns ◽  
Biomedical Sciences ◽  
Common Features ◽  
Patterns Of Use ◽  
Usage Patterns ◽  
Over Time

The focus of the paper is on the frequency, distribution patterns and semantic profile of the necessitive impersonal reik(ė)ti ‘need’ in old and contemporary Lithuanian texts. The study employs corpus based quantitative and qualitative analysis to investigate the patterns of use of reik(ė)ti ‘need’ in the Database of Old Writings (16th-17th centuries) as well as the fiction sub-corpus of the Corpus of the Contemporary Lithuanian Language and the humanities and biomedical sciences sub-corpora of the Corpus of Academic Lithuanian (CorALit). The study follows van der Auwera and Plungian’s (1998) modality framework. The quantitative analysis shows that the present tense form reikia ‘need.PRS.3’ is the dominating one across all the sub-corpora analysed. The results of the qualitative study indicate that the deontic sub-type of participant external modality is prevailing in the old Lithuanian texts as well as in the fiction sub-corpus and in the biomedical sciences texts of the contemporary Lithuanian. The discourse of the humanities displays a fairly frequent employment of reik(ė)ti ‘need’ for discourse organising functions alongside the deontic uses. Although the usage patterns of reik(ė)ti ‘need’ in the biomedical sciences and the humanities share certain common features, they also point to discipline specific trends of argumentation. It is also important to observe that the objective deontic reik(ė)ti ‘need’ seems to gradually acquire the features of subjective deontic modality over time, which corresponds to the typical subjectification cline (cf. Traugott 1989).

scholarly journals Regional variations in occupancy frequency distribution patterns between odonate assemblages in Fennoscandia

Ecosphere ◽  
2018 ◽  
Vol 9 (4) ◽  
Author(s):  
Esa Korkeamäki ◽  
Merja Elo ◽  
Göran Sahlén ◽  
Jukka Salmela ◽  
Jukka Suhonen
Keyword(s):  
Frequency Distribution ◽  
Distribution Patterns ◽  
Regional Variations

An Evaluation of Preposition Representation in the Omani Basic Education ELT Textbooks

2019 ◽  
pp. 311-328
Author(s):  
Rahma Al-Mahrooqi ◽  
Faisal Said Al-Maamari ◽  
Christopher Denman
Keyword(s):  
Content Analysis ◽  
Frequency Distribution ◽  
English Language ◽  
Basic Education ◽  
Language Teaching ◽  
Distribution Patterns ◽  
English Language Teaching ◽  
Design Phase ◽  
Textbook Design ◽  
Practical Implications

The chapter employed a corpus-based approach to evaluate the representation of prepositions in the Omani Basic Education English language teaching (ELT) school textbooks in Grades 1-4. In doing so, it sought to investigate English preposition distribution patterns in the textbooks in order to understand more about how Omani learners are introduced to them. To achieve this, a corpus of Omani ELT school textbooks was used and a qualitative page-by-page content analysis performed through manual content analysis. Findings indicate that prepositions were not presented with enough frequency for learners to be adequately exposed to them across all grades. Moreover, results suggest that the textbook writers have not considered the frequency distribution of patterns of prepositions during the textbook design phase. Practical implications of these results are offered.

Marine mammals and Japanese long-line fishing vessels in Australian waters: operational interactions and sightings

2006 ◽  
Vol 12 (1) ◽  
pp. 31 ◽  
Author(s):  
Catherine Bell ◽  
Peter Shaughnessy ◽  
Margie Morrice ◽  
Bob Stanley
Keyword(s):  
Marine Mammal ◽  
Marine Mammals ◽  
East Coast ◽  
Fishing Gear ◽  
Killer Whales ◽  
Fishing Vessels ◽  
Long Line ◽  
Target Fish ◽  
Pilot Whales ◽  
Warm Temperate

Observers from the Australian Fisheries Management Authority worked on randomly chosen Japanese long-line vessels in the Australian Fishing Zone (AFZ) between 1980 and 1997. Observer reports (n = 451) were inspected for interactions or sightings of marine mammals. An operational interaction was defined as an activity or behaviour that involved direct contact between a marine mammal and fishing gear, bait, target fish or bycatch, or indications that the marine mammal was feeding. A sighting was defined as the recording of marine mammals that passed the vessel without changing course and/or did not appear to interact with the vessel or its gear. Observers witnessed 23 interactions and made another 44 sightings of marine mammals. A further 24 interactions and sightings were relayed by crew members. Killer whales were reported most frequently: most incidences of fish being damaged, taken or frightened away were attributed to them. Eleven marine mammals were caught: two died, seven were released, and the fate of two others was not recorded. Between 1991 and 1996, when observer coverage was 11.5% overall in the AFZ, the incidence of interactions was 1.71 per million hooks set. The estimated number of interactions in that seven-year period was 157 in the AFZ. Since 1997, the long-line fishery has been conducted by Australian vessels, primarily off the east coast of mainland Australia in warm-temperate waters. A higher proportion of interactions can be expected with killer whales and short-finned pilot whales in these waters, and fewer with seals.

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