If a lake is cut from the ocean and has no large fish as predators (only dragonflies), then the sticklebacks will have a better chance at surviving and reproducing because the sticklebacks will be better adapted to the environment (presence/absence of a pelvic bone) and have little to no predators. The hypothesis was supported.
The three spined stickleback fish has many unique traits. some of the most notable structural adaptive traits of this specie are the three spines and body armor. The three spines are sharp and located on the back forward of the dorsal fin. The lateral bony plates are located on each side of the body. These structural armors projecting from the back and pelvis can simultaneously flare out when the fish feels threatened as a defense against predatory vertebrates making it difficult for predators to swallow them. With the back spines pointing directly upward and the pelvic spine pointing out at a perpendicular angle make it difficult for a predatory fish that catches a stickleback to swallow the stickleback. This added benefit allows the fish
In my hypothesis, I state that the stickleback fish would not have a pelvic spine caused by an insertion mutation in the Pitx1 enhancer region. According to the gel, the stickleback fish in Big Lake do not have the pelvic spine due to a deletion mutation found in the Pitx1 enhancer region. This can be further proved by the phenotype of the fish found in Big lake. The stickleback fish found in Big Lake (seen in figure 2) is smooth across the bottom, with no pelvic spine present. This proof supports the results of the gel
The ocean is a giant body of water that is home to all types of fish. The ocean provides a rich environment for a plethora of animals from the tiniest of fish to the enormous whale. In the ocean, these creatures live and explore. Some of them must hunt other fish in order to survive, which means that others must try to avoid predators. Nature has provided all of these animals with a unique capability to survive. The ocean abounds with interesting animals of all shapes and sizes that have their unique appearances and habitats at different depths of the sea.
Adaptations allow deep-sea creatures to survive in extreme environments. There are many different adaptations that allow an animal to survive. The three common adaptations consist of habitat, appearance, and diet. The Giant Squid, Zombie Worm, and the Yeti Crab utilized these adaptations to survive, and without them it would be difficult to nearly impossible to keep their species alive and flourishing. Each one of theses species is suited for its environment and survival tasks through its adaptations.
The ocean is a giant body of water that is home to all types of fish. The ocean provides a rich environment for a plethora of animals from the tiniest of fish to the enormous whale. In the ocean, these creatures live and explore. Some of them must hunt other fish in order to survive, which means that others must try to avoid predators. Nature has provided all of these animals with a unique capability to survive. The ocean abounds with interesting animals of all shapes and sizes that have their unique appearances and habitats at different depths of the sea.
The Native Americans of the North West Coast region adapted to their environment with the uses of fish, trees, and animal hides.
Question: Why does sex change occur in clownfish and what are the behavioral effects that result from the sex change?
It is strongly recommended to avoid those activation to protect stream environment for eel natural habitat.(17) Thus, in light of the results in this study, it can be assumed that excavation and habitat destruction observed in recent years has probably reduced the quantity and quality of suitable habitats for juvenile eel, which could be negatively affecting both ecologically and economically. 4.5 Further studies Various observations European eel life history should be describe not as truly catadromous, but "facultative or semi catadromous". Due to fact that European eel were found in different waters such as freshwater,brakish and coastal,and freshwater phase is not be a essential part of their life history, could not make them not truly catadromous species.(18) This is the only experimental study until now, as far as we know, that contribute to the understanding the habitat choice of eel juveniles in brackish salinity water .Therefore
Endangered Native Atlantic Salmon: Salmon Presentation Project (Not a Final Draft) Salmo salar, most commonly known as Atlantic Salmon, was once native to almost every freshwater river connected to the Hudson River. Due to what people have treated salmon during their history, many species have been endangered and even extinct, this includes the Native Atlantic Salmon. When people first came to Maine, Atlantic Salmon was the main source of food to eat. The population was still very steady then, but it wasn 't until the early 1800’s that populations decreased.
Aquatic Conservation: Marine and Freshwater Ecosystems, 20(7),
The newts and other native animals in the lake now have to compete with the crayfish for food, crayfish have even been known to kill newts at times. The park’s aquatic biologist, Mark Buktenica, says "You can hardly turn a rock over without finding a juvenile or adult crayfish. " Scientists and researchers are trying to quickly find a way to install barriers that wouldn’t be visible to park visitors, but will keep the crayfish separate from the native
This laboratory experiment involving invertebrates is conducted to enable students to investigate Daphnia magna’s responses to external stimuli, therefore developing a better understanding and knowledge of homeostasis that occurs in organisms and the reaction and behavior exhibited by the daphnia magna when varying conditions are exposed to the organism compared to its natural environment conditions (Carter-Edwards et al, 2011). In order to understand the experiment, a foundation of information about the chosen organism such as its natural environment and physiology must be understood. According to Clare (2002) and Ebert (2005), Daphnia magna are small planktonic crustaceans belonging to the subclass Phyllopoda, found in lakes and
One of the leading causes for reefs to be endangered is due to the invasive lionfish. The lionfish’s impulsive eating habits are threatening our sea life of the reefs and decreasing our fisheries economically. According to Lionfish Hunters, the green side includes the cleaners that maintain the health of the reef and the health of other fish such as “grazers.” The grazers are the parrotfish, goatfish, wrasses, surgeonfish, and tangs. (The Lionfish Hunters, web.) These fish help clean the algae that grow over the reef, lowers the algae levels to support enough oxygen for coral to grow, and to establish efficient space for baby coral. There are three main ideas of how we as a community and as a nation can attempt to eliminate lionfish: spread
I can’t believe what just happened! Today, my goldfish died! About 2 weeks ago I won little bubbles at a carnival. As long as I have lived I have begged my parents to get a goldfish! That day was the happiest day of my life. I spent 5 hours thoroughly customizing bubble’s bowl and spent 30 minutes searching for the most nutritious fish food out of all of the local pet stores. Mr. Bubbles and I played all day long. We even developed our own language and communication. When he blew a Bubble, it meant he was saying hello. When he swam in a circle, it meant he was hungry. I protected Bubbles with my life. You see, my dad had this cat named Squeezle. Squeezle couldn’t get enough of watching Bubbles. Instead of television, Squeezle and I were entertained