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Bonaire hosts international team of biodiversity explorers which discover new marine species.

Last fall, during  October and November, an international research team investigated the marine biodiversity of Bonaire. Although Bonaire’s reefs have been well monitored over the years by researchers, as well as documented by underwater photographers, its marine biodiversity has been poorly explored. In previous decades, more research was performed on the neighboring island Curaçao, which resulted in many new species discoveries from there. Therefore, it was assumed that Bonaire also has a high potential for the discovery of undescribed species. The preliminary results from the expedition suggest that this assumption was correct. These results will be formally published in scientific journals, where they will be accessible to all who want to learn more about the marine biodiversity of Bonaire.

A call from WWF-Netherlands to consider applications for funding research on the biodiversity of the Netherlands (including its Caribbean islands) triggered marine biologists of Naturalis Biodiversity Center and ANEMOON Foundation to submit a joint-proposal. This proposal was rewarded with a research grant. In addition, matching funding was provided from Naturalis’ research program on the Nature of the Netherlands. The research team consisted of Naturalis’ experts in marine biodiversity, ANEMOON, and foreign universities (Belgium, Italy, Japan, Puerto Rico, and Russia), as well as a marine biology student from the University of Groningen. The expedition was under leadership of Bert Hoeksema (senior scientist at Naturalis and honorary professor at the University of Groningen) and Godfried van Moorsel (ANEMOON). The expedition received local support from Stichting Nationale Parken Bonaire (STINAPA) and the Dutch Caribbean Nature Alliance (DCNA).

Seven new marine species were discovered in the waters around Bonaire.

The expedition resulted in many new discoveries, among which were at least seven undescribed species of invertebrates that are new to science, as well as numerous new records for the marine fauna and flora of Bonaire. Among the new species were an unknown shrimp, while another shrimp was found in association with a species of coral that had never before been seen to host shrimps. These shrimps will be studied further by Charles Fransen of Naturalis. Adding to these discoveries, four new species of encrusting sea anemones known as zoantharians were discovered. Compared to Curaçao and St. Eustatius (where the team has previously studied biodiversity), the number of zoantharian species was surprisingly high. Some of these species live in association with sponges, forming colorful combinations of species. The new species have very small polyps that are less than 4 mm wide. These new discoveries were made by James Reimer from Okinawa, who is the world-leading scientist of zoantharians.

Sponges may also harbor many kinds of animal associates, amongst which small shrimp-like animals known as copepods. These animals are very small (usually less than 1 mm long) and many of them belong to species that are still undiscovered. Some copepods are known to cause diseases. Fan corals, which are very common at Bonaire, were found to show a condition known as Multiple Purple Spots Syndrome, which can be linked to the presence of an undescribed species of copepod. This relation between the coral and copepods was first discovered at St. Eustatius, during a similar expedition of Naturalis and ANEMOON. All new discoveries related to copepods were made by Slava Ivanenko from Moscow, who specializes in copepods that live in association with corals, sponges and other invertebrates. Another group of small crustaceans, amphipods – also known as beach fleas, was investigated by Ronald Vonk of Naturalis. Some of these species live in between sand grains on beaches or in the sea floor. He was able to find species of a particular family that needs to be studied with the help of molecular analysis for a better understanding of the amphipod evolution.

Expedition member Jaaziel Garcia-Hernandez, who is a PhD student from  the University of Puerto Rico – Mayagüez, searched for small calcareous sponges, which are called so because their skeleton is composed of limestone needles (spicules). They are poorly known because they usually live in crevices and underneath overhangs. Nevertheless, a total of 15 species were recorded. Together with Bert Hoeksema he also studied how sponges interact with corals. Simone Montano from Italy was looking for associations between tiny hydroids and corals. He is interested to know how these hydroids are able to settle on corals. Moreover, he also searched for particular coral diseases caused by ciliates, and how the hydrozoan-coral association may reduce the susceptibility to diseases. PhD candidate Luna van der Loos from Gent (Belgium) participated in the expedition to study algae. She was able to find approximately 100 large species, while small species could only be identified down to genus level. Among all species that she found, approximately five constitute new records for Bonaire. In addition, more than 165 species of fish were observed by Floris Bennema and Godfried van Moorsel of ANEMOON and 45 species of stony coral by various expedition members. Team members Marianne Ligthart and Marco Faasse of ANEMOON Foundation recorded sea anemones and echinoderms. They found an association between a brittle star and a scale worm, which was only known from Belize, Mexico and Venezuela. PhD candidate Werner de Gier of Naturalis and the University of Groningen studied the association between small pea crabs and their invertebrate host species. Finally, MSc student Lukas Verboom (University of Groningen) recorded the abundance of snails that eat corals and can cause damage to them.

All together about 35 localities were visited by SCUBA diving, snorkeling, wading, and beach combing. Among them four were at Klein Bonaire and several locations at the poorly studied exposed east coast of Bonaire. The results need further analyses after which new species and new records will be added to the Dutch Caribbean Species Register of Naturalis (https://www.dutchcaribbeanspecies.org/). Eventually, the results will also show, which localities around Bonaire are particularly rich or poor in species. It will also be interesting to compare the marine fauna and flora of Bonaire with those of other localities in the Caribbean. The outcome of the expedition has certainly revealed that the marine underwater life of Bonaire is very rich in species, which will be demonstrated in the scientific publications that will follow.

A sea fan showing the Multiple Purple Spots Syndrome (marked by yellow circles), which is caused by a new species of copepod.
A yellow zoantharian living in a dark green sponge.
A small cryptic calcareous sponge at 30 m depth.
A symbiotic shrimp living on a black coral host recorded from Bonaire for the first time.
Association between a brittle star and a scale worm.
The reefs of Bonaire show a high concentration of fish species.
A reef coral affected by a deadly disease known as Caribbean Ciliate Infection.
The hydrozoan Solanderia gracilis, is rare on Bonaire.

Related Posts

(Source:  Dutch Caribbean Nature Alliance (DCNA))


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Susan Davis, Bonaire InsiderSusan Davis has been living on Bonaire for over 25 years. She is a PADI Master Instructor, a certified bird guide, and an underwater and topside photographer. She also enjoys writing for The Bonaire Insider tourism news blog. 


 

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Restaurant Reviews on BonReviews:

5/5

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5/5

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4/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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4/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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3/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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4/5

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5/5

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4/5

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Mezze Restaurant on Bonaire
4/5

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5/5

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4/5

Latin Vibe at Cuba Compagnie!  I was invited to dinner by friends. Previously, I had been to Cuba for cocktails but dinner was a new experience. We sat outside surrounded by a lively and bustling vibe. The wait staff are very friendly and helpful. They are very busy so it takes patience and some effort […]

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5/5

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4/5

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5/5

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5/5

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5/5

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5/5

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4/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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5/5

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4/5

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5/5

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5/5

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3/5

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4/5

Good food and good friends at Diver’s Diner Bar & Grill!  We have been return customers every time we come to Bonaire. This is trip number 7. Try the walking sticks for sure and the dipping sauce. I could go on and on. Try it out you won’t be sorry.

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Lionfish pizza at Pasa Bon Pizza on Bonaire
5/5

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5/5

Jasmine Garden is a typical Chinese restaurant, where we had a delicious dinner. We ordered the Yeung chow fried rice and the Kung pao chicken, which were served by friendly staff. During our 2 week’s holiday in Bonaire, we went there 4 times to eat. Every time we were satisfied.

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5/5

Bistro de Paris is accommodating for vegans and vegetarians.  We love going to Bistro because we know we can eat a fabulous meal for our vegan needs. Mary makes a mean veggie salad large enough for a meal. The rice bowls, carrot bourgenon is soo tasty, the potato terrine is to die for, so rich […]

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5/5

Great lunches at Donna & Georgio’s.  It’s like stepping off Bonaire’s streets and into Italy. Wonderful food and great atmosphere plus air conditioning. Daily specials and mouth watering pizzas await you…..

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4/5

Love lunch at Zen’s Bar Café!  I am always impressed with the Lunch specials. They are as appealing to the eye as to the stomach and my pocketbook.

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5/5

Great food at a great price! Had some of the best sushi I’ve ever had the other night at Exito Buffet & Grill along with a wonderful wok dish prepared by their new chef. The service was great and the food fabulous. The new menu is coming shortly so be sure to go and try […]

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Dining review of Blue Garden Brazilian Grill & Pizza Gourmet
2/5

Pizza needs work at Blue Garden Brazilian Grill & Pizza Gourmet. The mojitos are great Service started off OK, then once I got my food, I never saw the server again, so never got any more water. The pizza needs work. The crust is about 2mm thick & is heavy & still not totally cooked. […]

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3/5

Cuba Compagnie Going Downhill We have been here a few times before. I went there tonight with my son and the service was unresponsive and when I said something I got a rude smart mouth response from management. The food is generally good. But don’t order the sodas. You get a small glass full of […]

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