astronomy

Mudjekeewis D. Santos

Mudjekeewis D. Santos is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Mudjekeewis D. Santos rather than just read about it. In short: Mudjekeewis Dalisay Santos (born June 7, 1971) is a Filipino fisheries scientist and marine biologist at the National Fisheries Research and Development Institute (NFRDI). He was the first Career Scientist to have been conferred the Scientist V rank by the Scientific Career System.

Key takeaways

Mudjekeewis D. Santos belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Mudjekeewis D. Santos to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Mudjekeewis D. Santos from memory before moving on to harder problems.

Reference excerpt

Mudjekeewis Dalisay Santos (born June 7, 1971) is a Filipino fisheries scientist and marine biologist at the National Fisheries Research and Development Institute (NFRDI). He was the first Career Scientist to have been conferred the Scientist V rank by the Scientific Career System. In July 2018, he was elected and conferred as an academician member of the National Academy of Science and Technology of the Philippines (NAST-PHL). His fields of interest in fisheries science are genetics, resource assessment, aquatic biodiversity, biotechnology, climate change adaptation, and policy. A marine fish was named after him in 2015 (Chelidoperca santosi), by two of the world's leading fish taxonomists, Jeffrey Williams and Kent Carpenter. In the same year, an Islet in Zamboanga City was named in his honor, "Mudjie Wise Key Islet," by the people of Barangay Dita, Zamboanga City. Later, he was officially recognized by the City of Zamboanga and by the Bureau of Fisheries and Aquatic Resources (BFAR) as one of the prime movers of the sardine fishing closure in the peninsula that not only benefitted the city but the entire country as well.

Early life and education Santos was born in Baguio City, Philippines. He was the firstborn of Juanario N. Santos and Guadalupe Dalisay, both government employees of the Department of Agriculture. He spent his elementary days at the Basa Air Base Elementary School in Floridablanca, Pampanga and Special Education (SPED) Center in Baguio City. He studied high school at the Chevalier School in Angeles City. In 1992, he obtained his bachelor's degree in biology from the University of the Philippines (UP) College Baguio. He was also assigned as a Deputy Corps Commander and Cadet Lieutenant Colonel of the university's Reserve Officer Training Corps (ROTC). He started his government career in 1992 as a commandant of the UP College Baguio High School Citizen. From 1992 to 1995, he was a research assistant at UP College Baguio and UP Diliman. He became an Aquaculturist I of the Bureau of Fisheries and Aquatic Resources (BFAR) in 1995 and eventually got promoted to Supervising Aquaculturist of the National Fisheries Research and Development Institute (NFRDI) in 2001. He pursued his Master's and Ph.D. degrees in biosciences at the Tokyo University of Marine Science and Technology (TUMSAT), Japan, as a Japanese Government (Monbukagakusho) scholar. He graduated with an MS in Aquatic Biosciences and a Ph.D. in Applied Marine Biosciences. After which, he did a Post-Doctoral Fellowship at TUMSAT under Professor Takashi Aoki. He returned to the Philippines in 2009 to resume his research work and official function in NFRDI. This was followed by his conferment as a career scientist under the Scientific Career System (CSC) implemented by the Civil Service Commission (CSC) and the Department of Science and Technology (DOST). He was conferred as Scientist I in 2010, Scientist II in 2014, Scientist IV in 2021 and currently the first-ever Career Scientist V in the country conferred in December 2023.

Research and involvements Santos' research interests are in fisheries science, specifically in the areas of genetics, resource assessment, aquatic biodiversity, biotechnology, climate change adaptation, and policy. Santos has authored and co-authored over 100 scientific publications. He co-authored the discovery of new fish species such as the Whitechin surgeonfish, Acanthurus albimento and the Arafura lanternbelly, Acropoma arafurensis. He also helped determine a number of first records of marine species in the Philippines including the Bali sardine, Sardinella lemuru, Tawian sardinella, S. hualiensis, Blacknape Large-Eye Bream, Gymnocranius satoi, Bohol lanternbelly, Acropoma boholensis, Pacific bluefin tuna, Thunnus orientalis, Deranayigala’s beaked whale, Mesoplodon hotaula and Noah’s giant clam, Tridacna noae

He became an academician of the National Academy of Science and Technology last 2018. In 2015, Jeffrey Williams and Kent Carpenter named a marine fish after him in recognition of his contributions to marine scientific research in the country. The Pogi perchlet, Chelidoperca santosi, was discovered in Iloilo's public fish market which was captured in the province of Palawan. An islet in Zamboanga City was named "Mudjie Wise Key Islet" by the people of Barangay Dita, Zamboanga City, in honor of his contributions that improved the well-being of the local fisherfolk. Santos also led The Philippine Journal of Fisheries (TPJF) revival and indexing in 2017 as its Editor-in-Chief. He also serves as an editor of Fisheries Science, a journal of the Japanese Society of Fisheries Science based in Japan and the section editor for Marine and Fishery Sciences of The Philippine Agricultural Scientist, published by the University of the Philippines Los Baños (UPLB). He is recognized as one of United Nations Division for Ocean Affairs and Law of the Sea Pool of Experts under the Asia-Pacific States Region with expertise on fish biology and ecology. He was also the president of the Philippine Society in Biochemistry and Molecular Biology (PSBMB) since 2022 and of the Philippine Association of Career Scientists (PACS) from 2017 to 2019, which he was a member of since 2011. Santos was also one of the Board of Directors of Outstanding Young Scientists, Inc. (OYSI) from 2014 to 2016. Santos is into science communication via social media to promote his advocacy on fisheries sustainability and marine biodiversity conservation. His verified Facebook page “Doc Mudjie” already has over 16,000 followers as of 2026.

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Mudjekeewis D. Santos

Start with the simplest possible case. Write down what Mudjekeewis D. Santos claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Mudjekeewis D. Santos before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Mudjekeewis D. Santos ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Mudjekeewis D. Santos

In research: Mudjekeewis D. Santos appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Mudjekeewis D. Santos in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Mudjekeewis D. Santos is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1971 births, Aquaculturists, Filipino magazine editors, so understanding it makes those chapters shorter.
In everyday life: Look for Mudjekeewis D. Santos outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Mudjekeewis D. Santos in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Mudjekeewis D. Santos means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Mudjekeewis D. Santos out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mudjekeewis D. Santos in simple terms?

Why does Mudjekeewis D. Santos matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Mudjekeewis D. Santos?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Mudjekeewis D. Santos.