4
هذا هو التسجٌل الأول لبُزاق البحر أرنب ( لُواع ) البحر كورودا ( أبلٌسٌا كوروداي بابا ، 7391 ) من بحر البدٌة ، خلٌج عُمان من على عُمك 4 أمتار ... عدسة مُدربة الغواصٌن الكابتن عُلا خلف ... 4.0.71 .. 01
This is the first record of the Kuroda ’ s Sea Hare ( Aplysia kurodai Baba , 1937 ) from the Bidyah Sea , Gulf of Oman . Photo by Ola Khalaf in the Bidyah Lagoon , 4 meters deep ; body length around 8 cm . 28.04.2017 . http :// marine-life-uae-2 . webs . com / aplysia-kurodai
Self-defense : Aplysia species were once thought to use ink to escape from predators , much like the octopus . Instead , recent research has made it clear that these sea slugs are able to produce and secrete toxic “ substances such as ammonia ” in self-defense . The ability of the Aplysia species to hold toxins within their bodies without poisoning itself is a result of the unique way that the toxin is stored within the slug . Different molecules essential to the creation of the toxin are accumulated in separate parts of the body of the slug , rendering them benign , as only the mixing of all the molecules can result in a toxic chemical cloud . When the sea hare feels threatened it immediately begins the process of defending itself by mixing the distinct molecules in an additional part of the body used specifically for that purpose . At which point , enzymes within the sea slug begins the process of making the substance toxic , and the mixture is ejected out at the predator in self-defense ( Wikipedia ). Reproduction : Aplysia has the ability to store and digest allosperm ( sperm from a partner ) and often mates with multiple partners . A potent sex pheromone , the waterborne protein attractin , is employed in promoting and maintaining mating in Aplysia . Attractin interacts with three other Aplysia protein pheromones ( enticin , temptin or seductin ) in a binary fashion to stimulate mate attraction ( Wikipedia ).
Gazelle : The Palestinian Biological Bulletin – Number 161 – May 2018