Community based local management of fisheries - a paradigm from Minicoy, Lakshadweep, lndia

Traditional practices related to fishing observed by the fishermen of Minicoy, Lakshadweep with a mew to conserve the resource and avoid conflicts among them are detailed here

Feeding habits of skipjack tuna, Katsuwonus pelamis associated with flotsam in Minicoy, Lakshadweep

Feeding habits of skipjack tuna associated with flotsam and those from free schools were studied based on data collected from the pole and line fishery from Minicoy during 1999-2001. The flotsam were found in different months but was more frequent during Sept. to Nov. A preponderance of smaller siz-e groups below 40 cm (48%) was seen around flotsam whereas in free schools size groups above 50 cm (65%) dominated. Stomach contents of 828 individuals were analysed. In flotsam associated skipjack, stomachs were found to be either empty or with natural prey. Caridian shrimps were found to be the main food in all size groups/and were actively fed. The average ration per 1000 g body weight ranged between 17.3 and 39.4 ml suggesting that the flotsam have a function related to feeding rather than refuge

Compounded feeds for post larval rearing of marine prawns

Availability of appropriate feed has been the main constraint for rearing the various stages of prawn larvae. This is largely overcome by the use of live feed cultures. But the maintenance of these live feed cultures require specialised technical inputs, labour and time

Myc-binding Protein Orthologue Interacts with AKAP240 In the Central Pair Apparatus of the \u3cem\u3eChlamydomonas\u3c/em\u3e Flagella

Background Flagella and cilia are fine thread-like organelles protruding from cells that harbour them. The typical ‘9 + 2’ cilia confer motility on these cells. Although the mechanistic details of motility remain elusive, the dynein-driven motility is regulated by various kinases and phosphatases. A-kinase anchoring proteins (AKAPs) are scaffolds that bind to a variety of such proteins. Usually, they are known to possess a dedicated domain that in vitro interacts with the regulatory subunits (RI and RII) present in the cAMP-dependent protein kinase (PKA) holoenzyme. These subunits conventionally harbour contiguous stretches of a.a. residues that reveal the presence of the Dimerization Docking (D/D) domain, Catalytic interface domain and cAMP-Binding domain. The Chlamydomonas reinhardtii flagella harbour two AKAPs; viz., the radial spoke AKAP97 or RSP3 and the central pair AKAP240. Both these were identified on the basis of their RII-binding property. Interestingly, AKAP97 binds in vivo to two RII-like proteins (RSP7 and RSP11) that contain only the D/D domain. Results We found a Chlamydomonas Flagellar Associated Protein (FAP174) orthologous to MYCBP-1, a protein that binds to organellar AKAPs and Myc onco-protein. An in silico analysis shows that the N-terminus of FAP174 is similar to those RII domain-containing proteins that have binding affinities to AKAPs. Binding of FAP174 was tested with the AKAP97/RSP3 using in vitro pull down assays; however, this binding was rather poor with AKAP97/RSP3. Antibodies were generated against FAP174 and the cellular localization was studied using Western blotting and immunoflourescence in wild type and various flagella mutants. We show that FAP174 localises to the central pair of the axoneme. Using overlay assays we show that FAP174 binds AKAP240 previously identified in the C2 portion of the central pair apparatus. Conclusion It appears that the flagella of Chlamydomonas reinhardtii contain proteins that bind to AKAPs and except for the D/D domain, lack the conventional a.a. stretches of PKA regulatory subunits (RSP7 and RSP11). We add FAP174 to this growing list

Note on catfish landing with gravid females, male brooders and young ones at Cuddalore, Tamil Nadu

In Tamil Nadu catfish is landed mainly as a by-catch in trawlers, drift gill netters and the hook and line units. In 2018, the total catfish landing in Tamil Nadu was 4165 t of which almost 90 % was contributed by trawlers. On 22.8.2019, around 3000 kg of catfish, Arius maculatus was landed by a ring seiner at Cuddalore, Tamil Nadu. The catch was comprised of gravid females and incubating males of total length ranging from 350 mm to 370 mm. Along with the catch, eggs in various stages of development, juveniles with yolk and without yolk were also seen in good quantity in the boat. One gravid ovary contained 24 eggs in the right ovary and 29 in the left

भारत के दक्षिण पूर्व तट पर कवाकवा मछली (यूथिन्नस) एकिनिस का विदोहन और इसका जीवविज्ञान

कृपया पूरा लेखा पढ

Seasonal hand line fishery for yellowfin tuna at Colachel

In Tamil Nadu, the oceanic tunas like skipjack and yellowfin tuna are exploited mainly by multiday drift gill netters. However, in Colachel, Kanyakumari, there is a seasonal fishery targeting yellowfin tuna of medium size weighing around 30 kg, with hand lines that are operated from multiday trawlers. This is an additional income for both the fishermen and the trawl boat owners

TGFBR2 (Transforming Growth Factor, Beta Receptor II (70/80kDa))

Review on TGFBR2, with data on DNA/RNA, on the protein encoded and where the gene is implicated

Detection of colistin susceptibility in extended spectrum β lactamases positive Klebsiella pneumoniae and Escherichia coli clinical isolates by broth disc elution method

Background: Antibiotic resistance is one of the greatest threats in human health. Extended spectrum β lactamases mediated resistance is prevalent worldwide, Klebsiella pneumoniae and Escherichia coli leap out as this significant ESBL producers conferring resistance to the expanded spectrum cephalosporins. Colistin is being administered as last line therapy for patients that have failed to respond to other available antibiotics that are active against Gram-negative bacteria. Methods: The present study was conducted at school of medical education Kottayam, Kerala from January 2023 to November 2023.During the period of study 150 isolates of K. pneumoniae and 136 isolates of E. coli were collected from various diagnostic microbiology laboratories in Kerala. The colistin susceptibility pattern of ESBL producing isolates was detected by broth disc elution method recommended by CLSI. Results: In this study prevalence of multi-drug resistant is 6% and 9.6% and Extensively-drug resistant is 62% and 63.9% for K. pneumoniae and E. coli respectively. ESBL production was detected as 72% in K. pneumoniae and 79% in E. coli. The colistin susceptibility pattern of ESBL producing K. pneumoniae and E. coli was detected as 76.9% and 87.9% respectively Conclusions: Our result demonstrated that the recent use of colistin as last resort treatment for extensively drug resistant gram-negative bacilli, it is essential to know the prevalence of susceptibility pattern to this antibiotic

Large sized oilfish Ruvettus pretiosus (Cocco, 1833) ever recorded from Gulf of Mannar, south-east coast of India

Ruvettus pretiosus belonging to the Family Gempylidae of perciform fishes is closely related to Scombridae. Gempylidae fishes are commonly called as snake mackerels or escolars and this family has 16 genus and 24 valid species. R. pretiosus is one of the large sized fishes with the maximum record of 300 cm total length (Nakamura and Parin, 1993). It is bentho-pelagic, reported to be distributed along the tropical and temperate seas of the world