Differences in the Chromogenic Properties of Freshwater and Marine Fish Liver Oils

Nature ◽  
1937 ◽  
Vol 140 (3536) ◽  
pp. 233-233 ◽  
Author(s):  
E. LEDERER ◽  
V. ROSANOVA ◽  
A. E. GILLAM ◽  
I. M. HEILBRON
Keyword(s):  
Marine Fish ◽  
Fish Liver

Response of Marine Fish Liver on Environmental Pollution

2017 ◽  
pp. 383-402
Author(s):  
Irina I. Rudneva ◽  
Maria P. Rudyk ◽  
Victoria V. Shepelevich ◽  
Larisa M. Skivka ◽  
Natalia N. Roslova ◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Marine Fish ◽  
Fish Liver

Dietary Marine Fish Oils and Cholesterol Metabolism 3. The Comparative Hypocholesterolemic Activities of Fish Oil and Vitamin A

1961 ◽  
Vol 18 (3) ◽  
pp. 377-382 ◽  
Author(s):  
J. D. Wood ◽  
J. Topliff
Keyword(s):  
Vitamin A ◽  
Fish Oil ◽  
Marine Fish ◽  
Corn Oil ◽  
Cholesterol Metabolism ◽  
Fish Oils ◽  
Cholesterol Feeding ◽  
Fish Liver ◽  
Marine Oils

Certain fish liver oils, when present in the diet, prevented hypercholesterolemia in chicks produced by cholesterol feeding. The hypocholesterolemic activity of the oils was proportional to the amount incorporated into the diet. Vitamin A-enriched corn oil produced similar results but corn oil itself was without effect. It was concluded that vitamin A was responsible for 73 to 85% of the activity of the fish liver oil. The cause of the additional activity of the marine oils is at present unknown.

Chapter 19: Response of Marine Fish Liver on Environmental Pollution

2016 ◽  
pp. 383-402
Author(s):  
Irina I. Rudneva ◽  
Maria P. Rudyk ◽  
Victoria V. Shepelevich ◽  
Larisa M. Skivka ◽  
Natalia N. Roslova ◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Marine Fish ◽  
Fish Liver

scholarly journals Ureidoglycollate lyase, a new metalloenzyme of peroxisomal urate degradation in marine fish liver

1986 ◽  
Vol 235 (2) ◽  
pp. 391-397 ◽  
Author(s):  
Y Takada ◽  
T Noguchi
Keyword(s):  
Metal Ions ◽  
Marine Fish ◽  
Active Form ◽  
Gel Filtration ◽  
Fish Liver ◽  
Bivalent Metal ◽  
Bivalent Metal Ions ◽  
One Step ◽  
Liver Peroxisomes

Ureidoglycollate lyase (UGL, EC 4.3.2.3), which catalyses the degradation of S(-)-ureidoglycollate to urea and glyoxylate, was found in the peroxisomes of marine fish (sardine and mackerel) liver. The enzyme highly purified from sardine liver had an Mr of about 121,000, with two identical subunits. When UGL was purified in the presence of 1 mM-EDTA, a much less active form was obtained. It was markedly activated by bivalent metal ions, particularly by Mn2+. The Mn2+-activated enzyme remained active when free Mn2+ was removed by gel filtration on Sephadex G-50, suggesting that UGL may be a metalloenzyme and the activation resulted from the binding of Mn2+ to the apoenzyme. UGL was found to be essential in peroxisomal urate degradation, since allantoate, the intermediate of urate catabolism, was found to be degraded to urea and glyoxylate in a two-step reaction catalysed by allantoicase (EC 3.5.1.5) and UGL via S(-)-ureidoglycollate as an intermediate in fish liver peroxisomes, but not in a one-step reaction as previously believed.

Component fatty acids of marine fish liver oils

1954 ◽  
Vol 31 (8) ◽  
pp. 332-334 ◽  
Author(s):  
S. P. Pathak ◽  
P. N. Suwal
Keyword(s):  
Fatty Acids ◽  
Marine Fish ◽  
Fish Liver

Studi pengembangan unit perbenihan ikan laut di Pulau Gumilamo Kabupaten Halmahera Utara

2015 ◽  
Vol 3 (3) ◽  
Author(s):  
Yitzhak Koloba ◽  
Hengky J Sinjal ◽  
Ockstan Kalesaran
Keyword(s):  
Local Government ◽  
Development Strategy ◽  
Marine Fish ◽  
Government Regulation ◽  
Swot Analysis ◽  
Fishing Effort ◽  
Government Support ◽  
Fish Hatchery ◽  
The Development Strategy ◽  
Internal And External Factors

This research intended  to evaluate the development strategy of Marine Fish Hatchery Unit at Gumilamo Island, North Halmahera. Analysis SWOT was used to determine the development strategy. Data were collected by questionnaire, interview and literature relevant to the research. SWOT analysis showed the internal and external factors that affected the development of Marine Fish Hatchery at Gumilamo island. The strenght were location, water quality , local government support, and availability of seeds and feed. Weakness were lack of public interest, lack of extension and human resources. Opportunity were the high value of the sale, business opportunities and  local government regulation. Treat were  dependence on fishing effort and safety.   Keywords : hatchery, gumilamo, north halmahera, SWOT analysis

Isolation, morphometry, and culture of Colurella sp. (Rotifera: Ploimida)

2013 ◽  
Vol 1 (2) ◽  
pp. 143
Author(s):  
Petrus P Letsoin ◽  
Henneke Pangkey ◽  
Julius Sampekalo ◽  
Inneke F.M Rumengan ◽  
Stenly Wullur ◽  
...  
Keyword(s):  
Body Size ◽  
Marine Fish ◽  
Fish Larvae ◽  
Nannochloropsis Oculata ◽  
Tropical Fish ◽  
Sampling Location ◽  
Larval Rearing ◽  
Brachionus Rotundiformis ◽  
Marine Fish Larvae ◽  
Significant Difference

The rotifer Brachionus rotundiformis (total body length 240.59±10.24 μm, lorica length 175.28±9.18 μm, and lorica width 124.28±7.76μm) is commonly used as starter food in the larval rearing of marine fish. But, larvae of some marine tropical fish species required starter food with body size smaller than B. rotundiformis. The present study was aimed to isolate minute rotifers from nature and to assess the possibility of culturing these rotifers. Sampling of rotifers was conducted in an estuary of Mangket (Kema-Minut), using plankton net (mesh size 40 µm). A trial of culturing the rotifers was conducted at salinities of 10, 20 and 30 ppt by using a microalga, Nannochloropsis oculata. A species of rotifer identified as Colurella sp. (family Lepadellidae) was successfully isolated from the sampling location. Body size of Colurella sp. was extremely small (Total length 123.22±5.45 μm, lorica length 95.96±3.81 μm, and lorica width 53.57±3.11 μm), which were smaller than Brachionus rotundiformis SS-type as a conventional starter food for marine fish larvae.  Results of culturing the minute rotifer Colurella sp. showed that the species grew well at salinities of 10, 20 and 30 ppt with no significant difference among treatments (ANOVA, p>0.05), indicating a potential use of minute rotifer Colurellasp. as starter food for marine fish larvae. Rotifera Branchionus rotundiformis (ukuran tubuh: panjang total 240,59±10,24 μm, panjang lorika 175,28±9,18 μm, dan lebar lorika 124,28±7,76μm) sering digunakan sebagai pakan awal pemeliharaan larva ikan laut. Namun, larva beberapa spesis ikan laut tropis membutuhkan pakan awal berukuran tubuh lebih kecil dari Branchionus rotundiformis. Penelitian ini bertujuan untuk mendapatkan minute rotifer dari alam (berukuran tubuh lebih kecil dari B. rotundiformis) dan menguji kemungkinan pemeliharaannya. Sampling rotifer dilakukan di perairan estuari Desa Mangket (Kema-Minut), menggunakan plankton net (ukuran mata jaring 40 µm). Uji coba pemeliharaan dilakukan pada salinitas (10, 20, dan 30 ppt) dengan menggunakan Nannochloropsis oculata. Satu spesies minute rotifer yang teridentifikasi sebagai Colurella sp. (family Lepadellidae) berhasil diisolasi dari lokasi sampling. Colurella sp. memiliki ukuran tubuh sangat kecil (panjang total [PT] 123,22±5,45 µm, panjang lorika [PL] 95,96±3,81 µm, dan lebar lorik [LL] 53,57±3,11 µm) yang mana lebih kecil dari Branchionus rotundiformis tipe-SS sebagai pakan awal larva ikan laut. Hasil uji coba pemeliharaan minute rotifer Colurella sp. menunjukkan bahwa spesis ini dapat tumbuh pada salinitas 10, 20, dan 30 ppt dengan perbedaan kepadatan populasi yang tidak signifikan antar perlakuan (Uji ANOVA, p > 0.05) mengindikasikan potensi pemanfaatan minute rotifer Colurella sp. sebagai pakan awal larva ikan laut.

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