Select Currency
Translate this page

STUDIES ON THE BIOLOGY OF SILVER CATFISH (CHRYSICHTHYS NIGRODIGITATUS LACÈPÈDE 1803) IN JEBBA LAKE, NIGERIA

Format: MS WORD  |  Chapter: 1-5  |  Pages: 95  |  4219 Users found this project useful  |  Price NGN5,000

  DOWNLOAD THE FULL PROJECT

STUDIES ON THE BIOLOGY OF SILVER CATFISH (CHRYSICHTHYS NIGRODIGITATUS LACÈPÈDE 1803) IN JEBBA LAKE, NIGERIA

 

ABSTRACT

Studies on the biology of silver catfish Chrysichthys nigrodigitatus (Lacèpède, 1803) in Jebba Lake, Nigeria was carried out between January 2009 and December 2010. Samples collected using fleets of experimental gillnets were used for the study. There was fluctuations in the physico-chemical parameters measured; mean electrical conductivity (66.41±13.89μs/cm), and mean phosphate (0.20±0.15mg/l), which was significantly different (p<0.05) at the zones. The males and females showed allometric (2.49) and isometric (3.18) growth pattern respectively, with strong relationship and direct proportionality between length-length for males (0.93) and females (0.83). The condition factor for males (K=1.74) and females (K=1.83) showed that the lake was conducive for the survival of the fish because it was greater than 1. The positive correlations in the morphometric parameters, and the meristic counts confirmed the presence of the species in the lake. The age structure was between 0+ and 3+ with bulk of the samples within ranges of 2 and 2+, males being bigger than females. Size distribution ranged from small to adult, with few adults in the population. Chrysichthys nigrodigitatus has the tendency to grow bigger based on the growth performance index. Nine (9) major items ingested by C. nigrodigitatus ranged from plant materials (21.75%) to animal components (55.65%), which vary in abundance across months and seasons. Juveniles and sub-adult fed predominantly on insects (36.72% and 28.69), while adults on fry (27.86%). There was a direct relationship between the size of fish and ingested food items. Prey importance index showed insects (57.61%), insects (53.70%) and fry (39.65%) as the most important items ingested by juveniles, sub-adults and adults, respectively. There was high feeding intensity due to few number of fish stomachs without food. Chrysichthys nigrodigitatus is an omnivore with moderate gut length. There were more males than females (1.77:1) in the population. More gravid females were recorded in August and September, which coincide with the period of spawning. Gonad maturity showed stages I-VI, males attained first maturity than females. Female C. nigrodigitatus had higher gonado-somatic index (9.73) than males (1.32) especially during the wet season. Mean fecundity ranged between 1,670-3,375 eggs, which increase with increased in fish size. Chrysichthys nigrodigitatus was the most abundant species both within the family Claroteidae (13.06%) and in the overall catch (8.95%) during wet than dry seasons, dominant in zones I and II during the wet season, and commonly found at the bottom of the lake. It is recommended that morphometric and meristic parameters be used to identify the fish, study on population structure to reveal more class sizes be done, culture trials should also be done, and the feed components to be plant and animals materials.

 

CHAPTER ONE

1.1 Background to the Study

Fish is a resource mostly exploited by man and is basically linked to the trophic chain in the entire environment where they are commonly found (Craig et al., 2004). Inland waters of Nigeria consist of water bodies that support a wide array of aquatic organisms, which includes phytoplankton, zooplanktons, crustaceans, and vertebrates such as fish, crocodile, and aquatic mammals (Atobatele and Ugwumba, 2008). Fishes found in the tropics and tropical water bodies experience changes in their biological parameters and activities due to fluctuations in factors such as food composition and availability, spawning rate, and other environmental factors. Welcomme (2001) reported that factors such as fishing, pollution and eutrophication among others could bring about series of changes in fish size, species composition and abundance in the aquatic environment. Similarly, Bisht et al. (2009) and Soyinka et al. (2010) reported that changes in environmental factors such as water quality, depth, water current, availability of food and substratum influence the occurrence of fish fauna, abundance and distribution.

Despite massive world-wide development efforts, in terms of many laudable programmes and ways to reduce poverty and improve livelihoods in fisheries and other sectors of the economy, poverty remains a nightmare for millions of Africans. In West Africa alone, seven million people are involved in fishing, aquaculture and related activities, such as processing and trading because it is a major source of livelihoods in many coastal communities, both inland and on the Atlantic coast. In addition to providing employmentand income, fisheries play a very important role in local and national economies (Komolafe and Arawomo, 2011). Nigeria is the largest consumer of fish in Africa with an approximately 1.2 million tonnes of fish needed annually to satisfy the demand of the ever increasing population. FAO (2000) estimated fish demand for Nigeria from 1997 – 2025, based on projected population and gave an average of 1.11 million tonnes for a decade (2000 – 2010). The country is highly blessed and endowed with vast expanse of inland freshwater and brackish ecosystems with abundant fish species, which have potentials for culture. These water bodies also play an important role in the provision of protein to Nigerians, especially now that imported fish is becoming expensive to the common man (Komolafe and Arawomo, 2011).

Freshwater is a very important natural resource crucial for the survival of all living beings. UNESCO (2003)reported that water is the most vital resource for all kinds of life on earth and essential for sustainability of the earth’s crust ecosystem. The quality of life depends on the quality of water. Physico – chemical factors are important in estimating the constituents of water and concentration of pollutants or contaminants. These factors are interrelated and interdependent with biological factors (plants and animals). Similarly, these factors immensely influenced the uses as well as the distribution and richness of biota (Unanam and Akpan, 2006). Physical parameters of water bodes include water movement, depth, turbidity, transparency, temperature and suspended solids. Chemical parameters include pH, dissolved oxygen, carbonates, bicarbonates, nitrate, phosphate, carbon dioxide, cations and anions and dissolved organic matters (Mustapha and Omotosho, 2005). Growth is simply defined as change in size (length, weight and bulk) with time and can also be change in numbers with time in the case of population (Abowei and Ezekiel,2013).

  DOWNLOAD THE FULL PROJECT

STUDIES ON THE BIOLOGY OF SILVER CATFISH (CHRYSICHTHYS NIGRODIGITATUS LACÈPÈDE 1803) IN JEBBA LAKE, NIGERIA

Not The Topic You Are Looking For?



For Quick Help Chat with Us Now!

+234 813 292 6373

+233 55 397 8005


HOW TO GET THE COMPLETE PROJECT ON STUDIES ON THE BIOLOGY OF SILVER CATFISH (CHRYSICHTHYS NIGRODIGITATUS LACÈPÈDE 1803) IN JEBBA LAKE, NIGERIA INSTANTLY

  • Click on the Download Button above.
  • Select any option to get the complete project immediately.
  • Chat with Our Instant Help Desk on +234 813 292 6373 for further assistance.
  • All projects on our website are well researched by professionals with high level of professionalism.

Here's what our amazing customers are saying

Azeez Abiodun
Moshood Abiola polytechnic
I actually googled and saw about iproject master, copied the number and contacted them through WhatsApp to ask for the availability of the material and to my luck they have it. So there was a delay with the project due to the covid19 pandemic. I was really scared before making the payment cause I’ve been scammed twice, they attended so well to me and that made me trust the process and made the payment and provided them with proof, I got my material in less than 10minutes
Very Good
Peace From Unilag
I cried not knowing how to go about my project but the day i searched online and saw iprojectmaster, i called and got my full project in less than 15minutes, i was shocked!
Excellent
Abdulrazak Bello Marsha
Usman Dan fodio University
It was quite a better guide for project and paper presentation purpoting. Many thanks.
Average
Adam Alhassan Yakubu
UDS
Excellent work and delivery , I promise to share my testimonies everyone in need of this kind of work. You're the best
Excellent
Merry From BSU
I am now a graduate because of iprojectmaster.com, God Bless you guys for me.
Excellent
MATTHEW NGBEDE
Ahmadu Bello University
I wish I knew you guys when I wrote my first degree project, it took so much time and effort then. Now, with just a click of a button, I got my complete project in less than 15 minutes. You guys are too amazing!
Excellent
Abdul Mateen Iddrisu
UDS
At first I taught is a site full of fraudsters until I saw my project in my Gmail after my payment.. THANK YOU IPROJECTMASTER and May God the almighty bless u guys abundantly
Excellent
Dau Mohammed Kabiru
Kaduna State College of Education Gidan Waya
This is my first time..Your service is superb. But because I was pressed for time, I became jittery when I did not receive feedbackd. I will do more business with you and I will recommend you to my friends. Thank you.
Very Good
Musa From Ahmadu Bello University
Thank you iprojectmaster for saving my life, please keep it up and may God continue to bless you people.
Excellent
Abubakar Iliyasu Hashim
Federal college of education pankshin affiliated to university of jos
I am highly impressed with your unquantifiable efforts for the leaners, more grace to your elbow.I will inform my colleagues about your website.
Very Good

FREQUENTLY ASKED QUESTIONS

How do I get this complete project on STUDIES ON THE BIOLOGY OF SILVER CATFISH (CHRYSICHTHYS NIGRODIGITATUS LACÈPÈDE 1803) IN JEBBA LAKE, NIGERIA?

Simply click on the Download button above and follow the procedure stated.

I have a fresh topic that is not on your website. How do I go about it?

How fast can I get this complete project on STUDIES ON THE BIOLOGY OF SILVER CATFISH (CHRYSICHTHYS NIGRODIGITATUS LACÈPÈDE 1803) IN JEBBA LAKE, NIGERIA?

Within 15 minutes if you want this exact project topic without adjustment

Is it a complete research project or just materials?

It is a Complete Research Project i.e Chapters 1-5, Abstract, Table of Contents, Full References, Questionnaires / Secondary Data

What if I want to change the case study for STUDIES ON THE BIOLOGY OF SILVER CATFISH (CHRYSICHTHYS NIGRODIGITATUS LACÈPÈDE 1803) IN JEBBA LAKE, NIGERIA, What do i do?

Chat with Our Instant Help Desk Now: +234 813 292 6373 and you will be responded to immediately

How will I get my complete project?

Your Complete Project Material will be sent to your Email Address in Ms Word document format

Can I get my Complete Project through WhatsApp?

Yes! We can send your Complete Research Project to your WhatsApp Number

What if my Project Supervisor made some changes to a topic i picked from your website?

Call Our Instant Help Desk Now: +234 813 292 6373 and you will be responded to immediately

Do you assist students with Assignment and Project Proposal?

Yes! Call Our Instant Help Desk Now: +234 813 292 6373 and you will be responded to immediately

What if i do not have any project topic idea at all?

Smiles! We've Got You Covered. Chat with us on WhatsApp Now to Get Instant Help: +234 813 292 6373

How can i trust this site?

We are well aware of fraudulent activities that have been happening on the internet. It is regrettable, but hopefully declining. However, we wish to reinstate to our esteemed clients that we are genuine and duly registered with the Corporate Affairs Commission as "PRIMEDGE TECHNOLOGY". This site runs on Secure Sockets Layer (SSL), therefore all transactions on this site are HIGHLY secure and safe!