Scientific Program

Conference Series Ltd invites all the participants across the globe to attend 9th World Congress on Aquaculture & Fisheries Dubai, UAE.

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Day 1 :

  • Track 4: Biotechnology and Genetics in Aquaculture
Speaker
Biography:

Sadiqul Awal has completed his PhD at the age of 40 years from Deakin University Victoria Australia. He is currently working as a senior lecturer at Melbourne Polytechnic, Victoria Australia. He has published many papers in reputed journals and has been serving as reviewer in many journals. He is the author of two books. His research interest in sustainable aquaculture, reclamation/remediation of salinity affected soil/land, aquaculture in inland ground saline water, microalgae, and estuarine environmental management.

Abstract:

The issue of salinization and salinity intrusion is one of the elevated global problems. The issue of the salinization of Australia’s inland ground water is a recurring and major environmental problem that is often the result of previous uses of the land for agricultural purposes and the use of certain irrigation practices. Inundation of land by saline water for long periods leads to its percolation into the surrounding soils, resulting in altered soil chemistry. Prolonged inundation inhibits the fixation of free nitrogen and halts mineralization, thus impairing soil fertility within a few years. The elevation of a water table that features increased salinity levels (sometimes approaching or even exceeding that of seawater) means that while the environmental ramifications are potentially massive (and include crop damage), it is true also that such waters are an untapped and largely unexplored aquatic resource. It is no doubt true that such inland areas present a wonderful opportunity to farm a variety of fish, molluscs and crustaceans (an opportunity that has thus far been realised on a relatively very small scale), but there is no doubt considerable scope to grow microalgae, which underpin the bottom of the food chain in aquatic systems and have an enormous number of potential uses. Microalgae are potentially ideal candidates for remediation of these salt affected soil and lands. Microalgae can be deployed for bioremediation at sites with highly variable salinities, without significant effects on end-product potential.

Gen Hua Yue

Temasek Life Sciences Laboratory, Singapore.

Title: ASIAN SEABASS THE NEXT BIG FISH-STATUS OF ITS BREEDING PROGRAM
Speaker
Biography:

Gen Hua Yue is a Director (of Strategic Research Programs) and Senior Principal Investigator at the Temasek Life Sciences Laboratory, Singapore. He is an adjunct professor at several universities in China and Singapore. He got his PhD at the University Hohenheim, Germany in 1999. The research focus of his group is to use genomic approaches to improve the productivity and sustainability of economically important fish (e.g. Asian seabass and marine tilapia). He has published over 130 scientific papers in peer-reviewed international journals. He has been on the editorial boards of several international journals (e.g. Scientific Reports, BMC Genomics, Aquaculture, Aquaculture and Fisheries, Gene, Frontiers in Livestock Genomics, Plos One) and has evaluated over 200 scientific papers for 58 international journals. He has reviewed research proposals from the EU, USA, China, Ireand, Kuwait, New Zealand and Singapore since 2007.

 

Abstract:

The Asian seabass (Lates calcarifer) is an important marine foodfish and has been cultured for food in Southeast Asia since the 1980s. The aquaculture industry of this fish is growing at a rapid rate. In Singapore, with the strong support from Singapore government, we started a breeding program for Asian seabass to improve its growth performance, disease resistance and meat quality in 2004. We have developed a large number of genomic resources to facilitate the breeding program, such as whole genome sequence, DNA markers, a molecular parentage system, linkage maps, BAC libraries, transcriptomes, and a genotyping by sequencing platform based on NEXTseq 500. After three generations of family-based selection in mass crosses with molecular parentage analysis, we have increased the growth of Asian seabass by over 70% as compared to the control. Using progeny test and GWAS, we have identified brooders resistant to the big belly disease, nodavirus and iridovirus and established one line of Asian seabass resistant to these diseases. Using QTL mapping and GWAS, we identified DNA markers associated with growth and meat quality traits. We established one line for quick growth and another line for high content of omega-3s in flesh. Hybrids generated by crossing between the three lines are being tested in farms in Singapore and other countries. The growth and disease-resistance performance, as well as the content of omega-3 are very promising. In this presentation. I will summarize our traditional and molecular breeding program, and the achievements of this breeding program, as well as the future directions of research.

Biography:

Abstract:

In recent years, there has been a growing interest in controlling disease problems through alternative methods since the use of chemotherapeutic agents may lead to occurrence of resistant bacteria. In this study, a  total  of twenty fresh and  dry catfish samples respectively were purchased at three  different markets in Ibadan metropolis and  were analyzed for enumeration of lactic acid bacteria. The lactic acid bacteria isolates were subjected to various  morphological and biochemical tests. Antagonistic activity and antibiotics susceptibility of the isolates was carried out using agar diffusion method. Our results indicate that only 13 isolates out of 55 isolates obtained were heterofermenters, 15 out of the isolates had antagonistic activity against Salmonella typhi ATCC  33458 and Escherichia coli  ATCC 35218. Salmonella typhi was more inhibited by the LAB isolates. Only 8 out the LAB isolates were inhibited by the antibiotics of which Ofloxacin had the highest zone of inhibition . The lactic acid bacteria isolated in this study as ldentified  by API CHL 50 kit include Lactobacillus plantarum, Lactobacillus acidophilus andLactobacillus pentosus. This study revealed that the lactic acid bacteria from catfish can inhibit the growth of pathogenic bacteria and could be used in aquaculture  to control pathogenic organisms.

 

  • Track 2: Aquatic Resources and Environmental Management
Biography:

Sandhya Sukumaran has her expertise in conservation genetics, genotoxicology, molecular ecology and biodiversity. She worked on reef corals of Gulf of Mannar and Palk Bay to understand their ecology, taxonomy and diversity.  The effect of genotoxic chemicals on aquatic ecosystem and the role of sex in shaping evolutionary adaptations were studied using matrix population modeling in Artemia.  Presently her research is focused on population and conservation genetics of fishes and its relation to climatic fluctuations in the Indian Ocean.

Abstract:

Conservation of intra-specific biodiversity and bio-complexity of marine fishes is very pertinent as this gives resilience to climatic and environmental fluctuations. Anchovies are small pelagic fishes which occupy a key position in the trophic food web of the ocean. They are sensitive to environmental and climatic fluctuations as they respond with population abundances and crashes. In view of their importance, it is essential to understand the intra-specific diversity and genetic stock structure patterns as diversity is the key to sustainability. Hence, a study was carried out to understand genetic stock structure and historic demography of Indian anchovy, Stolephorus indicus from Indian peninsular waters using mitochondrial DNA markers, mitochondrial ATPase and COI sequences. Indian anchovy, Stolephorus indicus was collected from its range of distribution along Indian peninsular waters; Vizag, Tuticorin, Cochin, Goa and Andamans. Mitochondrial ATPase and COI gene regions were amplified and analysed in 90 and 105 individuals respectively. High haplotype diversity was associated with low nucleotide diversity in both sets of sequences. There were 44 haplotypes out of 90 individuals with a haplotype diversity value of 0.82 and nucleotide diversity value of 0.002 when ATPase sequences were analyzed. The sequences of Cytochrome C oxidase revealed 52 haplotypes out of 105 individuals with a haplotype diversity value of 0.651 and nucleotide diversity value of 0.002. Overall genetic differentiation (Fst) was low and insignificant between populations indicating panmixia. Historic demographic analyses showed signals of stable population size. Larvae of S. indicus is pelagic and widespread dispersal of larvae due to ocean currents may be contributing to substantial mixing and consequent homogeneity of stocks across Indian peninsular waters. 

Biography:

Abstract:

In most developing countries of sub-Saharan Africa, riverine ecosystems have suffered from intense human perturbation resulting in habitat degradation and as such, many fish species have become highly endangered. This study was carried out between April 2012 and December 2013, in three selected sites along the stretch of Agbura River. Fish sampling was carried out at the three sites on monthly basis at both day and night. A total of 42 fishes species belonging to 20 families and 30 genera were collected from the selected study sites. Fish community structure analysis, showed the two mochokid species; Synodontis budgetii and S. batensoda as dominant, while there were 25 subdominant/ common species, 14 occasional species and one rare species in the study stretch.  The Shannon-Weiner diversity index showed slight variation among the three study sites, with site 1 having the highest diversity (3.130), while site 11 has the least (1.992) diversity. Sand dredging and other related human activities going on in this site, may have contributed to its   low fish abundance and species richness. The study recommended a concerted ecological conservation measure in the exploitation of the aquatic resources of this river, in order to preserve its once rich and flourishing biota particularly fish.

Biography:

Abstract:

The position of fish hatcheries in an extreme arid area may indicate that they acquire specific environmental conditions. The purpose of this work is to describe the main features of the fish ponds phytoplankton population in relation to their ecological status. Attention is paid to phytoplankton quantity and quality as well as to changes in phytoplankton assemblages caused by alterations of environmental features. Investigations of the hydrobiological conditions of aquaculture's phytoplankton that were carried out during the last two decades in aquacultures of the Nile tilapia; Oreochromis niloticus (L., 1758) and the grass carp; Ctenophryngodon idella (Val., 1844) were followed as a case study. The phytoplankton population dynamics are expected as a consequence of the impact of combination of different biotic and abiotic elements. The phytoplankton development may reflect the ecological status of fishponds. Due to occasional man-made manuring, irregular variations in the availability of macronutrients could influence the qualitative and quantitative composition of the phytoplankton community. The feasibility of phytoplankton monitoring as an indicator of ecological status of fish ponds, identification problems of phytoplankton and the need of a methodological tradition are considered. These investigations provide evidence on complex trajectories of aquatic ecosystem shifts driven by hydrobiological alterations in aquacultures of subtropical habitats.

Speaker
Biography:

Ph.D, Zoology (Fisheries Science), Jamal Mohamed College, Bharathidasan University, Trichy, Tamil Nadu, India.

Abstract:

The brown paper nautilus, Argonauta hians Lightfoot, 1786 was recorded for the first time from Indian waters while investigating the biodiversity of the molluscs of  Gulf of Mannar during June, 2011. One specimen of the said species was collected as an incidental by-catch in the trawl catch off Thoothukudi coast of Gulf of Mannar, from India, between 08º 35’ 22.5" N 78º 27’ 40.9" E and 08º 31’ 91.2"N 78º 25’ 32.7"E at a depth of 305-310 m.

  • Track 1: Aquaculture/Freshwater and Marine Fisheries
Speaker
Biography:

Faculty member of Islamic Azad University of Bandar Gaz Branch since 2007. Associate proffessor since 2015. Print and submit more than 60 articles in scientific journals and scientific conferences.

Abstract:

Statement of the Problem: Rutilus rutilus caspicus and Rutilus frisii kutum in the Caspian Sea are valuable bony fishes. Due to the decline in fishing and Rutilus rutilus caspicus and Rutilus frisii kutum stocks, fisheries Organization of Iran each year to reproduce and release the fish fry into the Caspian Sea. Due to count the better the problems of separation of fry from each other that the two species are very similar in terms of appearance at an early age and also obtain accurate statistics released annually, Iran Fisheries Organization take action to monoculture in the pond to since its release in the sea. But what is important for better productivity growth under culture conditions that can be considered apart from the tasks Fisheries Organization. The objective of this study was to evaluate the feasibility necessary in order to foster growth and juveniles together to achieve better growth took place. Methodology & Theoretical Orientation: This study was operated as long as 6 weeks and in 9 tanks with 20 numbers fish in each tank, with 3 groups and 3 replicate as: Group A: Rutilus rutilus caspicus, Group B: Rutilus frisii kutum and Group C: Rutilus rutilus caspicus and Rutilus frisii kutum .Initial body weight and length average were 1.07±   0.007 gr and 3.26±   0.23 cm. At the end of the rearing period (six weeks), the length, weight and growth indices of fish in each group were evaluated. Findings: According to the results of study showed the largest increase in the weight of fish in Group C (p < 0.05). The results indicate that breeding Rutilus rutilus caspicus and Rutilus frisii kutum combined increased weight and length compared to any alone (monoculture) is culturing. The results showed that there isn't any meaningful difference in SGR, % BWI and CF in different groups (p > 0.05). But, there is meaningful difference in FCR, GR and Survival (p < 0.05). Also, the minimum amount of FCR in combined method (Rutilus rutilus caspicus and Rutilus frisii kutum), and the highest survival rate is in this group. Conclusion & Significance: The results of this study show that a combination of Rutilus rutilus caspicus and Rutilus frisii kutum farming improves weight and growth indices in both the fish. Since the two fish canibalism or not carnivorous diet and despite similar diet (omnivorous) and based on the results of this study may be the combination of these two species breeding programs carried out in the future. Since the two fish breeding these fish in brackish water and the environment in the Caspian Sea now the commercial breeding of this species does not occur in Iran. But with the advancement of culture and further studies the adaptation of these fish can be reared in fresh water to mix the two species in the pond did.

 

Biography:

Researcher at KNTU & Tabriz university as environment sector head researcher.The main publications and researches are about air and water quality and prediction by data mining using the newest methods.

Abstract:

This paper aimed to analyze effective factors of water quality and aquatic life level in the lake of the Sattarkhan dam with the respect to collected data during four years from this lake. Due to the human food chain, aquatic life quality plays a direct role in human health. Water and its materials are crucial for aquatic and when a pollution penetrates into water, it can cause diseases, poisoning and other dangerous menaces for human health which is commencing point of urban and rural social problems. Datasets are gathered from all over the lake during January 2011 to July 2015 to  assessing electric conductivity, PH, water and air temperature, transparency or turbidity, dissolved oxygen, family biotic index and Shannon-Weiner index as indicators of water quality and aquatic life quality. The analysis of cited factors demonstrated the water appropriation for both human uses and aquatic life due to PH, electric conductivity, temperature while the water can supply minimum requirements of dissolved oxygen and by probing the grabbed samples, it inferred that the reservoir suffers from suspended materials which increase turbidity. Diversity indexes scrutiny presented a few types of aquatics with vast numbers where means the low diversity and condition hardness for varied aquatics.