Distribution of vitamin B-12 in some fishes and marine invertebrates

Distribution of vitamin B-12 in the skeletal muscle of several marine and fresh water fish and marine invertebrates are reported. The vitamin B-12 content of white muscle of various fish ranges between 0.05 and 1.5 micrograms. The elasmobranch fish, such as sharks and rays, has a lower levels of vitamin B-12. The distribution of vitamin B-12 in the red muscle, heart, brain and liver of various fish is also shown. Content in red muscle varies between 3 and 22 micrograms, averaging 8 micrograms. The values show that the heart is a rich source of vitamin B-12. Internal organs are also rich in vitamin B

Study on Mitochondrial DNA Cytochrome b Gene of Chinese sea bass, Lateolabrax sp.

参考鳗鲡等鱼类线粒体 DNA序列进行了中国花鲈线粒体 DNA细胞色素 b基因片断的引物设计、PCR扩增及其序列测定。得到中国花鲈的碱基序列为 4 10 bp,其 A、T、G、C含量分别为 10 1bp(2 4 .6 3% )、112 bp(2 7.32 % )、72 bp(17.56 % )、12 5bp(30 .4 9% ) ,与鳗鲡等其他鱼类相同基因片断序列碱基含量相似。

12种鳃形目鱼类mt DNA NI4 L- NI4基因的序列变异及其分子系统学

鳃形目鱼类是一类在鱼类乃至脊椎动物进化史上占有很重要地位的古老濒 危鱼类，长期悬而未决的系统演化关系为世人瞩目.采用DNA测序技术首次测定了 包括中国特有鳃形目鱼类在内的12种鳃形目鱼类的mtDNA ND4L和ND4基因(703 by)的序列，并进行了分子系统学分析.从分子系统学的角度得出了如下结论:(1) 鲤属可以归并到鳃属;(2)达氏鳃与中华鳃的亲缘关系最近，很有可能为中华鳃的 一陆封类型;(3)环太平洋地区的鳃科鱼类可能有共同的起源;(4) ND4L和ND4基 因是进行鳃形目鱼类系统演化研究很好的遗传标记.

Studies on phenolase enzyme in prawns. II. The inhibitory action on the enzyme by certain chemical agents

The effect of certain chemical agents on dopa oxidation by phenolases has been examined. Sulphur containing amino carboxylic acids are inhibitory agents for dopa oxidation. Tyrosine, a substrate for the enzyme also acts as an inhibitor for dopa oxidation by the enzyme. The possible mode of action has been discussed. The function of diethyl dithiocarbamate in suppressing the display of enzyme activity has been detailed and its behaviour has been compared to the other chemical agents studied.

Phylogenetic relationships of 12 Penaeoidea shrimp species deduced from mitochondrial DNA sequences

DNA sequences of an 847 bp fragment of mitochondrial cytochrome oxidase subunit I (COI) gene and a 514 bp fragment of 16s rRNA gene were determined to examine the phylogenetic relationships of 12 Penaeoidea shrimp species (Penaeus chinensis, Penaeus japon

Isolation of Salmonella agona (4, 12:f, g, 5:-) from commercial frozen boiled clam meat

Details are given of the morphological, biochemical and serological characteristics of a specimen of Salmonella agona isolated from a sample of frozen boiled clam meat (Villorita cyprinoides) processed in a factory at Cochin. Possible association of this serotype with human salmonellosis is considered briefly.

Notes on the construction of 12 cu m ferrocement maturation tank for prawn broodstock

The study aimed to develop an economical, rational and easy method of constructing ferrocement tank suitable for P. monodon maturation.

BOBLME Mergui Archipelago Stakeholder Workshop, Yangon, Myanmar, 11-12 October, 2010

Updating environmental baselines and information; identification of major gaps; promotion of environmental services; promotion of livelihood interests; systematic monitoring practices; and increasing public awareness

BOBLME Oceanographic Working Group Meeting, Perth, Australia, July 12-16, 2010

Overview from member countries of oceanography and large scale dynamic processes affecting the Bay of Bengal

Report of the ICM best practices Southeast Asia workshop, Bogor, Indonesia, 12-13 January, 2011

The workshop objectives were to discuss the status of Community Based Coastal Resource Management (CB-CRM), Integrated Coastal Management (ICM) and Co-management in Indonesia,Malaysia, Myanmar and Thailand.

Report of the regional workshop in transboundary aquatic animal health issues, Bangkok, Thailand, 12-13 January, 2012

This workshop was implemented as part of the Transboundary Diagnostic Analysis (TDA). The main focus was on the shrimp and fish aquaculture sectors and addressed issues such as aquatic animal health and transfers of aquatic animals and plants.

Report of the Marine Protected Areas Working Group meeting, Penang, Malaysia, 11-12 February, 2014

The objectives of the workshop were to review and update Marine Protected Area (MPA) data, finalise policy briefs for each country and recommend future actions and policies for sustainable management of MPAs.

Report of the BOBLME ecosystem characterisation workshop, Phuket, Thailand, 10-12 February, 2014

The goals of the workshop were to: present verified data, draft a report containing visual descriptors and information on the structure and function of BOBLME ecosystems; identify information gaps and transboundary issues and develop capacity of national scientists on data integration techniques.