An Investigation of the Yeast Flora of Marine Fish from Scottish Coastal Waters and a Fishing Ground off Iceland

1965 ◽  
Vol 28 (2) ◽  
pp. 224-234 ◽  
Author(s):  
Sheena S. Ross ◽  
E. O. Morris
2021 ◽  
Vol 869 (1) ◽  
pp. 012054
Author(s):  
S Sulaiman ◽  
M A Abdullah ◽  
T M Mansur ◽  
N Roesa

Abstract This paper aims to examine how to protect of artisanal fishermen fishing ground and the policies that protect them. Small-scale fisher fishing grounds has to have a special attention due to their limitation. They are using very simple fishing gear, so they can’t sail far away from the coastal waters. The Fishing law give a specific attention for this matter, by limiting fishermen with 5 gross tonnage (GT) are only able to conduct their activities within the coastal waters. This study combines legal documents and the results of interviews with fishermen on 5 GT vessel. this studi of find, then the Law Number 27/2016 changed this regulation by increasing gross tonnage for small-scale fishermen from 5 became 10 GT, and it attract more serious problems for these small-scale fishermen since they have no exclusive fishing ground anymore. It will also affect to changes of fishing lane; fishing ground and vessels authorization procedure. By increasing GT, the 10 GT vessels also have rights to sail in the same fishing ground with 5 GT vessels and it’s created a potential conflict between the fishermen. So, harmonization of law is important task for the government in avoiding the overlapping rules on vessels criteria, by choosing law that prioritize on small-scale GT vessels.


2019 ◽  
Vol 22 (2) ◽  
pp. 157
Author(s):  
Chrisna Adhi Suryono ◽  
Agus Sabdono ◽  
Subagiyo Subagiyo

The coastal waters at Demak and Surabaya as areas for fishing ground bivalve for consumption proposes.  Unfortunately, mostly the coastal land these areas were used for industry and settlement, it will have an impact on the coastal environment.  Heavy metal is one of aspect on coastal environments will give impact, especially on bivalves. This study aims to determine the metal As and Hg in several of bivalves tissue, seawater, sediments and bioaccumulation factors in the of Demak and Surabaya coastal waters. The analysis of As and Hg content in bivalves tissue, sediments and seawater using ICPMS. The results showed bivalves, sediments and seawater samples were found As and Hg concentrations. The highest concentration of As was found in the sediments; meanwhile the highest Hg concentration was found in the bivalve tissue of P. attenuatus > A. pectinata > A.inaequivalvis > A. granosa > P. viridis > P. undulada > M. hiantina respectively.  The BAF bioaccumulation factor a significant difference p = 0.021 and the BSAF sediment bioaccumulation factor showed a very highly significant difference p = 0.009. The concentration of As, Hg and bioaccumulation factors in the two fishing ground bivalves areas shows a difference. Pesisir sekitar Demak dan Surabaya merupakan daerah fishing ground berbagai jenis bivalvia untuk dikonsumsi.  Namun sekarang pesisir daratan sebagian besar dimanfaatkan untuk industri dan pemukiman hal tersebut akan memberi dampak pada lingkungan pesisir.  Logam berat merupakan salah satu aspek yang memberi dampak pada linkungan pesisir terutama pada bivalvia.  Penelitian ini bertujuan mengetahui logam As dan Hg yang terdapat dalam jaringan beberapa jenis bivalvia, air laut, sedimen serta faktor bioakumulasi di pesisir Demak dan Surabaya.  Analisa kandungan As dan Hg dalam jaringan bivalvia, sedimen dan air laut menguunakan ICPMS.  Hasil penelitian menunjukan sampel bivalvia, sedimen dan air laut ditemukan As dan Hg.  Konsentrasi As tertinggi ditemukan dalam sedimen, sedangkan konsentrasi Hg tertinggi ditemukan dalam jaringan bivalvia secara berurutan P. attenuatus > A. pectinata > A.inaequivalvis > A. granosa > P. viridis > P. undulada > T. timorensis. Adanya perbedaan yang nyata p=0.021 terhadap faktor bioakumulasi BAF dan faktor bioakumulasi sedimen BSAF menunjukan perbedaan yang sangat nyata p = 0.009.  Konsentrasi As, Hg dan faktor bioakumulasi di kedua daerah fishing ground bivalvia menunjukan adanya perbedaan.


2007 ◽  
Vol 24 (1) ◽  
pp. 238-245 ◽  
Author(s):  
Vernon E. Thatcher ◽  
Gustavo S. de Araújo ◽  
José T. A. X. de Lima ◽  
Sathyabama Chellappa

Cymothoa spinipalpa sp. nov. (Isopoda, Cymothoidae) a buccal cavity parasite of the marine fish, Oligoplites saurus, is described on the basis of eight male specimens and one female. The fish hosts were captured in the coastal waters of Natal, Rio Grande do Norte State, Brazil. In the new species, the anterior margin of the cephalon is doubled ventrally over the bases of the antennae. In this respect, it resembles C. recifea Thatcher & Fonseca, 2005. It differs from that species, however, in being much smaller and having basal carinae on the pereopods 4 to 7 that are small and rounded (not large and pointed). Also, pleopods 2-4 lack the folds and pockets that are present in C. recifea. The new species can be distinguished from all known Cymothoa spp. by the mandibular palps which are entirely covered with small spines in adult males. The mancas of the new species resemble those of Cymothoa oestrum since they have elongate antennae but they are wider and have shorter uropods.


Author(s):  
Ucha E. Janis ◽  
Alfret Luasunaung ◽  
Lefrand Manoppo

ABSTRACT The success of baited hook and line fishing gear is determined by the activity of fish in terms of finding and catching food. Adding shrimp extract on bait may increase the fishing power of the bait; but this kind of scientific information, particularly on the bottom hand line is not widely available. This study aimed to determine the effect of shrimp extracts on demersal fish catch in the surrounding fishing ground and to identify the species caught by the bottom hand line. This research was conducted in coastal waters Tateli Weru Village, District of Mandolang, Minahasa in October 2015 which was based on an experimental method. Six units of bottom hand line was operated, where three units using bait of scad mackerel marinated in shrimp extract, and three other units using plain bait of scad mackerel; and the data were analyzed using t-test. Total catches was 60 fish; 38 fish caught by bait with shrimp extract, and 22 fish caught by bait without shrimp extract. The results showed that use of bait with shrimp extract give more catches. Keywords: bottom hand line, extrack of shrimp, demersal fish, Tateli Weru   ABSTRAK Keberhasilan alat tangkap pancing dasar berumpan sangat ditentukan oleh aktivitas hidup ikan dalam hal mencari dan menangkap makanan. Pemberian ekstrak udang pada umpan diduga dapat meningkatkan kemampuan tangkap dari umpan; namun informasi ilmiah seperti ini, khususnya pada pancing dasar belum banyak tersedia. Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak udang terhadap hasil tangkapan ikan demersal di sekitar daerah penangkapan dan mengidentifikasi jenis ikan hasil tangkapan pancing dasar. Penelitian ini dilakukan di perairan pantai Desa Tateli Weru, Kecamatan Mandolang Kabupaten Minahasa  pada bulan Oktober 2015 yang didasarkan pada metode experimental. Enam unit pancing dasar dioperasikan, di mana tiga unit menggunakan umpan ikan malalugis yang direndam dalam ekstrak udang, dan tiga unit lainnya hanya menggunakan umpan ikan malalugis tanpa ekstrak; dan data dinalisis dengan uji t. Tangkapan total berjumlah 60 ekor; 38 ekor tertangkap dengan umpan yang diberi ekstrak udang, dan 22 ekor tertangkap dengan umpan tidak memiliki ekstrak udang. Hasil analisis menunjukkan bahwa penggunaan ekstrak udang pada umpan memberikan hasil tangkapan yang lebih banyak. Kata-kata kunci: pancing dasar, ekstrak udang, ikan demersal, Tateli Weru


2019 ◽  
Vol 7 (2) ◽  
pp. 437
Author(s):  
Alfian M Berlianmastan ◽  
Angga J Aponno ◽  
Refindo Arundaa ◽  
Isti Utami Indah Sari Ali ◽  
Wilhelmina Patty

Since the fishing ground is getting farther from the coastal waters, Fish Aggregating Device is needed  as auxiliary fishing gear. Light is one of the auxiliary gear to attract fish gathering in the fishing ground. The use of underwater light has the potential to make the fish be in the target locality. Fish distribution underwater can be detected using a fish finder. Both technologies was applied to the partnership fishermen in Malalayang Satu Timur, Manado Bay, who have got impact of the coast reclamation. The technological implementation of yellow and red LED-sourced light underwater can be automatically turned on through automatically charged solar. In fishing operations, together with the partnership fishermen, the underwater light and the fish finder were put on the 3x4 m raft. Results revealed that the use of these technologies gave the economic advantage obtained that the catch has increased from the average before using the underwater light of 150 kg / trip to 400 kg / trip, after using this technologic underwater light.The average fishermen's income increased from the previous Rp 1,439,500 / trip to Rp. 4,020,000 / trip, after using of underwater light. The fish finder observation showed that the fish migration to the fishing ground was highly affected by the light color as well.Keywords: Light, fish behavior, Manado.ABSTRAKDengan semakin bergeser daerah penangkapan yang semakin jauh dari wilayah pesisir, maka diperlukan alat bantu penangkapan. Cahaya merupakan salah satu alat bantu penangkapan yang membuat ikan terpikat untuk berkumpul di suatu lokasi penangkapan. Penggunaan lampu dalam air memiliki keunggulan untuk memikat ikan karena berada langsung di lokasi ikan. Distribusi ikan yang berada di sekitar lampu dalam air dapat dideteksi dengan menggunakan fish finder. Kedua tipe teknologi ini diterapkan ke nelayan mitra di kelurahan Malalayang Satu Timur yang merupakan salah satu lokasi di Teluk Manado yang terkena dampak reklamasi di Teluk Manado. Penerapan teknologi alat bantu cahaya dua warna kuning dan merah bersumber dari lampu LED dalam air dan dapat dinyalakan secara otomatis dengan bantuan panel surya dan control charge otomatis. Dalam kegiatan penangkapan, bersama nelayan mitra, alat bantu lampu dalam air dan fish finder diletakan dirakit berukuran 3x4 m2. Keunggulan ekonomis yang diperoleh nelayan adalah jumlah hasil tangkapan mereka meningkat dari rata-rata sebelum menggunakan lampu sebanyak 150 kg/trip menjadi 400 kg/trip, setelah menggunakan lampu LED dalam air otomatis. Pendapatan nelayan rata-rata sebelum menggunakan lampu LED dalam air tenaga surya otomatis, sebesar Rp 1.439.500/trip menjadi Rp. 4.020.000/trip, setelah menggunakan lampu LED dalam air otomatis. Pengamatan dengan fish finder menunjukan bahwa migrasi ikan ke daerah penangkapan  sangat dipengaruhi oleh penggunaan warna lampu kuning dan merah.Kata kunci: Lampu, Tingkah laku ikan, Manado


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