The Ocean Explained Clément J.E.

This episode takes you on a deep dive into the vibrant and diverse marine ecosystems of the country, with a special focus on the unique biodiversity of Jeju Island.

Discover how technology aids in conservation efforts, the transformative effects of climate change on marine benthic ecosystems, and the importance of seaweeds and gastropods in these underwater paradises.

Join us as we unravel the mysteries of marine life, from the role of the Taiwan current in shaping ecosystems to the fascinating reproductive traits of the sea hare species, Aplysia kurodai.

References :

-Khim, J. S., Lee, C., Song, S. J., Bae, H., Noh, J., Lee, J., ... & Choi, J. W. (2021). Marine biodiversity in Korea: A review of macrozoobenthic assemblages, their distributions, and long-term community changes from human impacts. Oceanography and Marine Biology, 483-532.
-Yang, H. S., Kim, T., Lee, K. T., Kim, T., Baker, D. M., & Kang, D. H. (2023). Use of autonomous reef monitoring structures to monitor changes in the marine environment in Jeju, South Korea: A brief review. Ocean Science Journal, 58(2), 17.
-Cho, I. Y., Kang, D. W., Kang, J., Hwang, H., Won, J. H., Paek, W. K., & Seo, S. Y. (2014). A study on the biodiversity of benthic invertebrates in the waters of Seogwipo, Jeju Island, Korea. Journal of Asia-Pacific Biodiversity, 7(1), e11-e18.ISO 690-Ko, J. C., Ko, H. J., Kim, B. Y., Cha, H. K., & Chang, D. S. (2012). Distribution characteristic of exploitable macrobenthic invertebrates of beach sediments in the southern coastal water of Jeju Island. The Korean Journal of Malacology, 28(3), 197-213.ISO 690
-Lee, C. H., Kaang, B. K., & Lee, Y. D. (2014). Spawning behavior and egg development of Aplysia kurodai inhabiting the coastal waters of Jeju Island, Korea. Development & Reproduction, 18(1), 25.ISO 690-Kang, J. C., Choi, H. G., & Kim, M. S. (2011). Macroalgal species composition and seasonal variation in biomass on Udo, Jeju Island, Korea. Algae, 26(4), 333-342.

A daily intake of approximately 4 tons of krill equates to about 3 million calories for the blue whale, the earth's largest creature.

This is a stark contrast to the mere 2,500 calories an average human requires. This comparison alone offers a glimpse into the blue whale's impressive lifestyle and biology that we will explore.

We'll also delve into the best conservation methods for this species and discuss why its size defies typical mammalian norms.

References :

- Abrahms, B., Hazen, E. L., Aikens, E. O., Savoca, M. S., Goldbogen, J. A., Bograd, S. J., ... & Mate, B. R. (2019). Memory and resource tracking drive blue whale migrations. Proceedings of the National Academy of Sciences, 116(12), 5582-5587

⁠- Slater Graham J.⁠, ⁠Goldbogen Jeremy A.⁠ and ⁠Pyenson Nicholas D.⁠ 2017 Independent evolution of baleen whale gigantism linked to Plio-Pleistocene ocean dynamics Proc. R. Soc. B.*28420170546.
- Sylvestre, J.-P. (2016). Cétacés du monde: Systématique, éthologie, biologie, écologie, statut. Editions Quae.

All creatures are bound by time, yet their lifespan is dictated by their genetic and epigenetic makeup. The leatherback turtle is a prime example, armed with sophisticated survival strategies that defy time and mortality.

Discover where they hatch, their diet, their behavior, and how their exceptional ability to regenerate could provide invaluable insights for us.

References :

-Avens L, Taylor JC, Goshe LR, Jones TT, Hastings M (2009) Use of skeletochronological analysis to estimate the age of leatherback sea turtles Dermochelys coriacea in the western North Atlantic. Endang Species Res 8:165-177

-Heaslip SG, Iverson SJ, Bowen WD, James MC (2012) Jellyfish Support High Energy Intake of Leatherback Sea Turtles (Dermochelys coriacea): Video Evidence from Animal-Borne Cameras. PLoS ONE 7(3): e33259. https://doi.org/10.1371/journal.pone.0033259

-Avens L, Taylor JC, Goshe LR, Jones TT, Hastings M (2009) Use of skeletochronological analysis to estimate the age of leatherback sea turtles Dermochelys coriacea in the western North Atlantic. Endang Species Res 8:165-177. https://doi.org/10.3354/esr00202

-J. Michael C, Myers Ransom A and Ottensmeyer C. Andrea 2005 Behaviour of leatherback sea turtles, Dermochelys coriacea, during the migratory cycle*Proc. R. Soc. B.*2721547–1555

The topic today is the oarfish, this strange odd-looking fish that seems to come straight out of a Jules Verne novel.

Discover why exactly this fish is extremely sought after by professional divers and scientist around the globe.

In addition to explaining its stunning biology, bioluminescence and size, this fish has a very special relationship with earthquakes and you will se how.

References :

-Acanthocephalan Parasites of the Oarfish, Regalecus russelii (Regalecidae), With A Description of A New Species of Gymnorhadinorhynchus (Acanthocephala: Gymnorhadinorhynchidae) Michelle L. Steinauer; Ana E. Garcia-Vedrenne; Sara B. Weinstein; Armand M. KurisJ Parasitol (2019) 105 (1): 124–132.

-R. Brown - Pictures of an oarfish washed ashore in the Philippines - Nat. Geo. the 17 February, 2017.-ROBERTS T. R. 2012. — Systematics, Biology, and Distribution of the Species of the Oceanic Oarfish Genus Regalecus (Teleostei, Lampridiformes, Regalecidae). Muséum national d'Histoire naturelle, Paris, 268p. (Mémoires du Muséum national d'Histoire naturelle ; 202).

-Bichara, Alexandra JF - Manoa VL - 35 IS - 2 SP - 16 EP - 20 PY - 2023 PB - Finding Faults and Dragons A1 - University of Hawai'i Press SN - 1527-943x UR - https://muse.jhu.edu/pub/5/article/917281 N1 - Volume 35, Number 2, 2023 ER.

In this episode, we dive deep into the vibrant and diverse marine life of Brazil. Join us as we explore the convergence zone of freshwater giants, invasive species, and cold-blooded reptiles.

We uncover the origin of the Amazon River, the real freshwater giant behind local legendary creatures, and whether or not sea monsters still lurk in the depths of the Amazon. We also delve into the fascinating world of sharks swimming inland and the effect of such a change on their survival.

Throughout the episode, we share astonishing news, incredible discoveries, and captivating stories that will leave you in awe of Brazil's ocean life. We focus specifically on marine biodiversity, geology, and biology, offering unique insights into the intricate web of life in the Amazon and along Brazil's coastline.

Join us as we unravel the mysteries of Brazil's ocean life, and expect to learn more insights about the diverse ecosystems, fascinating creatures, and the delicate balance between freshwater and saltwater environments. Don't miss out on this episode filled with awe-inspiring discoveries and incredible stories.

If you want to be informed of future episodes or even suggest topics, don't hesitate to subscribe and send a message on Instagram :

@oceanexplained_

References :

- NOAA https://education.nationalgeographic.org/resource/amazon-rainforest/

- National Geographic https://education.nationalgeographic.org/resource/amazon-rainforest

- "Ocean, a global odyssey", Sylvia A. Earle 2021



- Brittanica

https://www.britannica.com/place/Amazon-River

In this episode of Ocean Explained, we invite you to join us on an extraordinary journey into the depths of the Red Sea.

Immerse yourself in the captivating world of this magnificent body of water as we uncover its secrets and unveil its wonders.

Explore the vibrant biodiversity, encounter unique fish species, and witness the geological marvels that shape this incredible ecosystem.

Delve into the intricate relationship between dugongs and seagrass, and gain insight into the challenges that threaten this delicate environment.

Prepare to be captivated by the mesmerizing beauty of the Red Sea in this enlightening episode of Ocean Explained!

Don't miss out on this immersive experience, and subscribe to stay informed about future episodes and suggest topics.
References for Stats and Studies :

-https://www.nationalgeographic.com/
-Bouma, T. J., van Belzen, J., Balke, T., Zhu, Z., Airoldi, L., & Blight, A. J. (2014). Identifying knowledge gaps hampering application of intertidal habitats in coastal protection: opportunities & steps to take. Coastal Engineering, 87, 147-157
-Gullström, M., Bodin, M., Nilsson, P. G., Öhman, M. C., & Moksnes, P. O. (2008). Evaluating the role of seagrass beds as a habitat for fish and decapods crustaceans in a Swedish fjord. Estuarine, Coastal and Shelf Science, 78(4), 741-748
-https://www.padi.com/