scholarly journals A first appraisal of the landing and mechanism of the Santos fishery

1960 ◽  
Vol 11 (1) ◽  
pp. 05-85 ◽  
Author(s):  
I. D. Richardson ◽  
M. N. de Moraes
Keyword(s):  
Fishing Gear ◽  
Important Species ◽  
Fishing Area ◽  
Important Fish

This paper summarizes and analyses the landing data collected at Santos, Brazil, during the 12 months period, July 1958-June 1959. These data are given in terms of weight landed of the more important fish and shrimp and also in terms of value. The distribution of the landings of each of the more important species is shown both according to the type of fishing gear used and fishing area. The fishing area is given in the form of statistical rectangles of 60 miles square. The landings are broken down to obtain a figure for the landing per hour of fishing for each species, for each gear and for each rectangle fished. This figure of landing per unit fishing time is used to compare one area with another, one gear with another, and one month with another for each of the important species. In this way, comparisons of the available density of a species by time, area and fishing gear are made.

scholarly journals ANALISIS ASPEK TEKNIS KAPAL PUKAT CINCIN (PURSE SEINE) DAN ALAT TANGKAP YANG DIGUNAKAN NELAYAN DI PERAIRAN TELUK BONE

2020 ◽  
Vol 3 (2) ◽  
pp. 226-238
Author(s):  
Hawati Hawati ◽  
Angkasa Putra
Keyword(s):  
Survey Methods ◽  
Secondary Data ◽  
Purse Seine ◽  
Primary Data ◽  
Fishing Gear ◽  
Technical Aspects ◽  
Fish Resources ◽  
Trawl Fishing ◽  
Fisheries Regulation ◽  
Fishing Area

The utilization of fish resources by fishermen in the waters of Bone Bay uses different fishing gear and patterns as well as different utilization and management policies. This can affect the sustainability of existing fish resources, one of which is in the Bone Regency area. This study aims to analyze the technical aspects of purse seine and fishing gear used by fishermen in the waters of Bone Bay, especially in Bone Regency. Furthermore, the technical aspects of the vessel and fishing gear as a result of the calculation are compared with the provisions stipulated in the PERMEN-KP Number 71 of 2016 to determine the zone of the fishing area. This research was conducted in Panyula Village, which is the fishing base area of purse seine fishermen and the waters of Teluk Bone, starting from November 2016 to March 2017. This research uses a combination of survey methods and case studies. The type of data used consists of primary data and secondary data. Based on the technical aspects of purse seine vessels, ring trawl fishing gear and FAD fishing tools, purse seine units should be operated on Fishing Route II and Fishing Route III in accordance with Minister of Marine Affairs and Fisheries Regulation Number 71 of 2016.

Reproductive biology of Polybius henslowii Leach, 1820 (Decapoda, Polybiidae): a discard species from the northwestern Portuguese beam trawl fishery

Crustaceana ◽  
2014 ◽  
Vol 87 (7) ◽  
pp. 784-800 ◽  
Author(s):  
L. Magalhães ◽  
M. Felício ◽  
M. B. Gaspar ◽  
V. Quintino ◽  
A. M. Rodrigues
Keyword(s):  
Reproductive Biology ◽  
Current Knowledge ◽  
Carapace Width ◽  
Fishing Gear ◽  
Northern Coast ◽  
Beam Trawl ◽  
Total Catch ◽  
Important Species ◽  
Trawl Fishery ◽  
Minimum Landing Size

Polybius henslowii Leach, 1820, a Portunid crab distributed from the British Isles to Morocco and the Mediterranean Sea is caught in high densities by many types of fishing gear and frequently thrown back to the sea. Along the northern coast of Portugal, P. henslowii is an important species discarded in beam trawl fishery. There are no quantitative estimations of discards and very little is known about its biology, information that is needed to value this species. The present work was conducted from March 2007 to December 2010 in order to improve the current knowledge of the reproductive biology of P. henslowii. By-catches were registered aboard commercial vessels that volunteered to participate in the study. In that period P. henslowii represented 57.3% of the total catch and was present in all hauls analysed. The target species, Palaemon serratus (Pennant, 1777), represented 1.2% of the total catch, showing the low selectivity of the fishing gear and the need for suppression of this gear to catch this shrimp species. Differences in size between sexes were found, with males being larger and heavier than females. Mature females occurred mainly in autumn and the carapace width at which 50% of the females reach maturity was estimated to be 37.8 mm, which could be set as the minimum landing size of this potential exploitable resource. A macroscopic ovarian maturity stages classification was proposed, allowing a rapid field assessment of female sexual maturity. This study fills a gap in the knowledge of a very important species discarded in beam trawl fishery that may be basis of further work.

scholarly journals UJI COBA PENANGKAPAN JARING INSANG DUA LAPIS UNTUK MENANGKAP IKAN TERUBUK (Tenualosa macrura Bleeker, 1852) HIDUP DI BENGKALIS

2018 ◽  
Vol 1 (1) ◽  
pp. 25
Author(s):  
Hufiadi Hufiadi ◽  
Baihaqi Baihaqi ◽  
Mahiswara Mahiswara
Keyword(s):  
Species Conservation ◽  
Catch Rate ◽  
Fishing Gear ◽  
Adult Fish ◽  
Gill Net ◽  
Dominant Fish ◽  
Bombay Duck ◽  
Important Fish

Ikan terubuk (Tenualosa macrura Bleeker, 1852) merupakan komoditas perikanan yang penting di Bengkalis, Provinsi Riau. Populasi terubuk di Bengkalis sangat menurun akibat dieksploitasi meskipun pembatasan penangkapan juga telah diterapkan melalui metode konservasi. Upaya selain konservasi juga melalui budidaya ikan namun upaya ini terkendala oleh ketersedian ikan terubuk hidup baik sebagai induk maupun ikan dewasa. Tulisan ini membahas hasil uji coba pengoperasian alat penangkap ikan jaring dua lapis untuk menangkap ikan terubuk hidup. Uji coba penangkapan dilaksanakan pada tahun 2015 – 2016 di perairan Selat Bengkalis dan sekitarnya. Hasil uji coba penangkapan menunjukkan bahwa jenis ikan yang dominan tertangkap adalah ikan biang-biang (Setipinna breviceps) dan nomei (Harpodon sp). Laju tangkap jaring dua lapis terhadap ikan terubuk berkisar 0,7 - 2,6 ekor/setting. Jumlah ikan terubuk yang tertangkap dalam kondisi hidup mencapai 27,1% dari total tangkapan ikan terubuk. Nilai ukuran panjang pertama kali tertangkap ikan terubuk dengan jaring dua lapis (Lc) yaitu 17,43 cmFL. Terubok (Tenualosa macrura Bleeker, 1852) is an important fish commodity in Bengkalis, Riau Province. The terubok resosurce in Bengkalis is heavily degraded due to the high exploitation even fishing limitation was applied in term of species conservation. Conservation efforts through fishculture are constrained by the availability of live terobuk fish as both parent and adult fish. This paper present the results of fishing trial of double-net fishing gear for catching alive terubok fish. Fishing trial was conducted in 2015-2016 periods in Bengkalis strait waters and its adjascent. The results shown that the dominant fish catches of doublé net were Shorthead hairfin anchovy (Setipinna breviceps) and bombay duck (Harpodon sp). Double gill net catch rate for terubok were between 0,7 -2,6 fish/setting. Number of alive terubok fish was 27,1% of total terubok catches, length of first capture (Lc) value of terubok by using doublé net was 17.4 cm FL.

scholarly journals Composition and Occurrence of Fish Fauna from Thanbyuzayat Township, Mon Coastal Area

Bionatura ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 1363-1370
Author(s):  
Zarni Ko Ko
Keyword(s):  
Species Composition ◽  
Fish Species ◽  
Dominant Species ◽  
Fish Fauna ◽  
Important Species ◽  
Foreign Countries ◽  
Commercially Important ◽  
Bombay Duck ◽  
Study Sites ◽  
Important Fish

A total of 48 species of fish fauna were identified during the present study period. The dominant species of fish were found under order Perciformes in all study areas. The most species composition (40) was recorded in Setse fish landing area. The commercially important fish species were mostly found in Kyaikkhami area. Moreover, 17 species of fish were exported to other regions and foreign countries. Among the fish species, species such as Threadfin (Polynemidae), Croaker (Sciaenidae), Hilsa (Clupeidae), Bombay duck (Harpadontidae), Anchovy (Engraulidae), and Pomfret fish (Stomateidae) were the most economically important species. Bombay duck and Anchovy (especially Coilia dussumieri) were more abundant (70%) at the present study sites. Harpodon nehereus and Coilia species were the leading food employed as fresh and dried for local people in the present study areas. Key words: Ichthyology, Taxonomy, Compositions, Occurrence, fish landing centers, Thanbyuzayat Township, Mon Coastal Areas.

INVENTARISASI ALAT TANGKAP BERDASARKAN KATEGORI STATUS PENANGKAPAN IKAN YANG BERTANGGUNGJAWAB DI PERAIRAN TANAH LAUT (INVENTORY OF FISHING GEARS BASED ON CATEGORY OF RESPONSIBLE FISHERIES STATUS AT TANAH LAUT WATERS)

2016 ◽  
Vol 2 (4) ◽  
pp. 141 ◽  
Author(s):  
Rusmilyansari Rusmilyansari
Keyword(s):  
Sustainable Development ◽  
Well Being ◽  
Purse Seine ◽  
Fishing Gear ◽  
Policy Recommendations ◽  
Development Programs ◽  
Fishery Resources ◽  
Fishing Gears ◽  
The Status ◽  
Fishing Area

<p>Program pembangunan perikanan tangkap dalam upaya meningkatkan kesejahteraan harus mencerminkan juga upaya menjaga kelestarian sumberdayanya. Penelitian ini bertujuan untuk mengetahui status alat penangkap ikan berdasarkan kategori penangkapan yang bertanggung Jawab.  Penelitian dilakukan di Kabupaten Tanah Laut.</p><p> Penelitian dilakukan dengan metode observasi berdasarkan dan wawancara.  Analisis data dilakukan secara deskriptif.  Hasil penelitian menunjukan bahwa alat penangkap ikan yang termasuk kategori bertanggung jawab yaitu rawai dan set gillnet; kategori kurang bertanggung jawab yaitu encircling gillnet, drift gillnet, trammel net, purse seine dan beach siene. Sedangkan  kategori tidak bertanggung jawab yaitu skimming net dan mini trawl.  Rekomendasi kebijakan dapat dilakukan dengan cara pengendalian jumlah alat tangkap, penutupan daerah penangkapan dan penguatan kesadaran pemangku kepentingan.  Dengan demikian pengelolaan sumberdaya perikanan dalam rangka pembangunan berkelanjutan dapat dilaksanakan.</p><p>Fisheries development programs in an effort to improve the well-being should also reflect an effort to preserve its resources . This study aims to determine the status of fishing gear base on categoryResponsibility Fisheries. The study was conducted in Tanah Lautdistrict . Research carried out by the method of observation and interview based . The data were analyzed descriptively . The results showed that the fishing gears base on responsible category are longline and set gillnet; less responsible category are encircling gillnet, drift gillnet, trammel net, purse seine and beach siene. While the not responsible categories are Skimming net andMini Trawl . Policy recommendations can be done by controlling the amount of fishing gear, fishing area closures and strengthening stakeholder awareness. Thus the management of fishery resources in the context of sustainable development can be implemented</p>

scholarly journals Can permanent closures of nearshore areas reduce the proportions of undersized fish in the Icelandic longline fishery?

2014 ◽  
Vol 72 (3) ◽  
pp. 841-850 ◽  
Author(s):  
Björn Björnsson ◽  
Jón Sólmundsson ◽  
Ólafur K. Pálsson
Keyword(s):  
Gadus Morhua ◽  
Melanogrammus Aeglefinus ◽  
Fishing Gear ◽  
Longline Fishery ◽  
Total Length ◽  
Length Measurements ◽  
Feasible Option ◽  
Fishing Area ◽  
Haddock Melanogrammus Aeglefinus ◽  
Icelandic Waters

Abstract In recent years, about one-third of the cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) catches in Icelandic waters have been obtained with longline. Although longlining has been regarded as a conservation-oriented fishing method, a serious drawback of this fishing gear is the high catches of undersized fish. Our purpose was to locate areas where catches of undersized fish are high and consider if it may be feasible to close them permanently for longlining. Extensive length measurements used in the analysis were made by official inspectors on-board longliners during 2005–2013 in the main fishing area around Iceland. We found that the percentage of undersized cod (&lt;55 cm total length) and haddock (&lt;45 cm) in those samples decreased in relation to both depth and distance from shore. Our results suggest that permanent closures of large nearshore areas for longlining is a feasible option to reduce catch of undersized cod and haddock.

scholarly journals PERKEMBANGAN HASIL TANGKAPAN IKAN PELAGIS KECIL DI SEKITAR LAUT JAWA

2017 ◽  
Vol 15 (4) ◽  
pp. 307
Author(s):  
Achmad Zamroni ◽  
Suwarso Suwarso
Keyword(s):  
Fishing Gear ◽  
Fuel Price ◽  
Fishing Trip ◽  
Catch Data ◽  
Main Target ◽  
Java Sea ◽  
Fishing Area ◽  
Pelagic Fisheries

Pukat cincin merupakan alat tangkap utama untuk perikanan pelagis kecil serta mempunyil peranan penting di dalam pengusahaan sumber daya perikanan di Laui iawa Armada pukat cincin berkembang pesat sejak tahun 1976 dan daerah penangkapan tersebar luas di perairan paparan Sunda, di antaranya Laut Jawa, Selat Makassar, Laut Cina Selaian, Selat Karimata, dan saat ini telah mencaoai perairan Sulawesi. Tahun 1994 diindikasikan perkembangan daerah penangkapan ini telah mencapai maksimum. Tujuan dari penelitian ini adalah untuk mengemukakan perkernbangan hasil tangkapan dan upaya ikan pelagis di Laut Jawa berdasarkan pada data berbasis hasil tangkapan pukat cincin yang mendarat di Pekalongan tahun 2002 2007. Hasil perrelitian menunjukkan bahwa ikan layang (DecapterLts spp.) tetap merupakan jenis utama atau dominan hampir di semua daefah penangkapan, yailu 52% dari seluruh hasil tangkapan. Hasil tersebut tidak berbeda ciengan hasil pada tahun 1985-1992. Jumlah trip mengalami penurunan yang cukup signifikan pada bulan Nopember 2005 karena adanya kenaikan harga bahan bakar minyak Penurunan jumlah trip ini diikuti dengan menrngkatnya jumlah hari di laut menjadi sekitar 2 buian. LaJu tangkap ieius mengalaml penurunan dari 1.OOO,7 kg per hari pada tahun 2004, menjadi 409 kg per hari pada tahun 2007. Ratarata laju tangkap tefsebut jauh lebih kecil iika dibandingkan pada tahtrn '1992-1996 yang mencapai 2,387 kg per hari. Di antara 7 daerah penangkapan di perairan Laut Jawa dan Selat Makassar, laju tangkap lebih tinggi dijumpai di perairan sekitar Kepulauan Kangean, yaitu sekilar 950 kg per hari. Purse serne is the main fishing gear of small pelagic fisheries and lhe most impoftant Eeat for flsheries resoufces exploitation in Java sea. since 1976, purse selre has spread out quickly and thc selners were able to extend their exploitation area outsicle the Java sea. ln 1994, it itldicated lhat fishing area has .eached the naxinium point. The purpose of this study is lo explain catch develapment of petagic fish in the Java sea based on catch data of purse sei}e that landed in Pekalongan fror', 2002-2007- Ihe rest//fs show that sca.rs (Decapterus sppJ species still provided the main target of the exploitation and reprcsents 52% of the total catclt. Thts condition was found similafly ilt 1985' 1992. The fishing trip of yesse/ decrease d significantly iti Navember 2005due ta tlte increase of fuel price. The day at sea increased up to 2 monlhs. Calch per unit of eflotl tllso decreasecl from 1,000.7 kg per day in 2OO4 becoming 4Og kg per day in 2OO7. This catch per unit ol effoft was significanUy stnaller than lhe resutts in 1992-1996 that reached 2,387 kg per day. From lhe seven fishing areas of waters around lhe Kangean archipelago provided the highest catch per unit af effott, of ahout 9 50 kg per day.

scholarly journals INVENTORY OF FISHING GEAR IN KECAMATAN TUNGKAL ILIR, TANJUNG JABUNG BARAT, JAMBI

AQUASAINS ◽  
2018 ◽  
Vol 6 (2) ◽  
pp. 615
Author(s):  
Lisna Lisna ◽  
Agnes Vincentia ◽  
Noferdiman Noferdiman ◽  
Jasmine Masyitha Amelia
Keyword(s):  
Data Collection ◽  
Fishing Gear ◽  
Gill Net ◽  
Long Line ◽  
Fishing Area

This research was conducted at Tungkal Ilir, Jambi on May to July 2017. The aims of this study were (1) to determine the types of fishing gear that operates in Tungkal Ilir, (2) fishing area and (3) the dynamics of operating fishing gear in Tungkal Ilir. Data collection was done by interview and observation. The data will be analyzed descriptively using tables and graphs. Based on the results of this research, the fishing gear used in Tungkal Ilir are gill net, trawl, togok, sondong, trap and long line. Gill net is the largest fishing gear used with 15 fishermen. While the least used fishing gear is trap. The dynamics of fishing is strongly influenced by the season and the type of fishing gear used by the fisherman. The fishing area in Tungkal Ilir ranges from 1 mile to 30 miles

scholarly journals TINGKAT PENGELOLAAN IKAN TEMBANG (Sardinella gibbosa) YANG TERTANGKAP DENGAN BAGAN TANCAP DI KABUPATEN PANGKEP

2020 ◽  
Vol 3 (2) ◽  
pp. 151-160
Author(s):  
Handayani Pratiwi B ◽  
Muhammad Jamal Alwi ◽  
Danial Sultan
Keyword(s):  
Fishing Effort ◽  
Utilization Rate ◽  
Fishing Gear ◽  
Sufficient Knowledge ◽  
The North ◽  
Sardinella Gibbosa ◽  
Fish Catch ◽  
Administrative Area ◽  
Fixed Line ◽  
Fishing Area

The success of fishing depends on sufficient knowledge of the overall behavior of the fish, which is the basis for the development of existing methods. Utilization of Fishery Potential Activities in Pangkep Regency waters still depends a lot on simple fish catching technology. One of the factors for the success of catching fish with a chart is light. Light is a tool to help collect fish to the fishing area. Toli-toli village, Tekkolabua sub-district, Pangkep district is geographically located between 04º79'07.71 "- 4º79'14.35" LS and 119º43'75.13 "- 119º44'02.01" East Longitude (Figure 4). The administrative area is included in the North Liukang Tupabbiring District, Pangkep Regency. The production of tembang fish (S. gibbosa) caught with fixed-line fishing gear occurred in 2012 as much as 927.70 tons and the lowest was in 2009 as many as 50.30 tons. The level of utilization (TP) and level of cultivation (TPu) of fixed-line fisheries in Pangkep waters according to the Schaefer model for 8 years has exceeded the allowable utilization rate (JTB), namely in 2011, 2012, 2013, and in 2008, 2009 , 2010, 2014 and 2017 are still in an underexploited condition. Based on the analysis of the sustainable potential of tembang fish using the Schaefer model, the allowable amount of tembang fish catch (JTB) is 80% of the MSY value, it is recommended that the number of fish catches allowed in Pangkep Regency is 409.36 tons with a maximum number of fishing effort units of 26 units / year.

scholarly journals Kepadatan Stok, Komposisi Jenis, Struktur Ukuran dan Daerah Penangkapan Ikan di Teluk Jakarta

2021 ◽  
Vol 14 (2) ◽  
Author(s):  
Prihatiningsih Wagiyo ◽  
Prihatiningsih P ◽  
Sri Turni Hartati
Keyword(s):  
Species Composition ◽  
Density Distribution ◽  
Size Structure ◽  
Demersal Fish ◽  
Horizontal Distribution ◽  
Fishing Ground ◽  
Fishing Gear ◽  
Mouth Part ◽  
Fishery Resource ◽  
Fishing Area

Jakarta Bay has a variety of biota as a fishery resource, the utilization of which is continuous intensively. this study aims to obtain the data and information on stock density, species composition, size structure and fishing ground.  The research was conducted by means of exploration and observation in 2016. The results showed that the average stock density in Jakarta Bay was 11,400 kg/km2 and in the Seribu Islands 25,500 kg/km2. Stock density distribution based on vertical coastline is obtained; mouth part 13,925 kg/km2, middle 11,709 kg/km2 and the coast 8,326 kg/km2. Coastal horizontal distribution; West area 15,311 kg/km2, Central 9,256 kg/km2 and East 9,259 kg/km2. Based on area in the Seribu Islands 25,500 kg/km2, Jakarta Bay 11,320 kg/km2 and Tangerang 11,610 kg/km2. Stock composition includes; demersal fish 84.53%, Cephalopods 9.98%, Crustaceae 4.32% and others. The fishing area of gill nets is wider and more spread out than other fishing gear.

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