Spinner Dolphins

The development of sole, distinct sounds from captive orcas is troubling, as they cannot communicate with a variety of pods within the wild.

For the first seven months of their training period, the dolphins were acquainted with several gestures and sounds. They were presented with simple two-choice sound-discrimination stimuli to familiarize them with some sounds that the study would use. Correct responses were rewarded with freshly thawed silver smelt fish. The positive reinforcement aimed at developing a positive attitude toward learning and encouraging dolphins to solve problems. Gestural training was also initiated in this period to accustom the dolphins to responses that that would later be expected from them in the study. Akeakamai was made to specialize in gestural

Bottlenose dolphins are among the most familiar cetaceans, just as whales. The Bottlenose dolphin is a primitive member of the subfamily Delphinine. Bottlenose dolphins are grey, varying from dark grey at the top near the dorsal fin to very light grey and almost white at the underside. There are two ecotypes of bottlenose dolphins the coastal and the offshore. The Coastal dolphin has a small body and large flippers to increase agility and heat dissipation. They have a limited movement into offshore waters and like shallow warm water near the shore. Coastal dolphins for the most part remain in their region. The Offshore dolphin has a large body to help conserve heat and defend itself against predators. They are less restricted in range and movement and like deep, cold waters. Offshore dolphins in the North Atlantic have migratory patterns that follow prey distribution. Bottlenose dolphins live in groups typically of 10–30 members, called pods, but group size varies from single individuals up to more than 1,000. In a case study performed by Randall Wells who is the leader of the longest study of dolphin population since 1970, it was discovered that there are three main factors that influence migration: Seasonal changes in prey location, predation pressure and reproductive requirements. (Wells, 1980). In the fall dolphins follow mullet fish when they migrate from the bays into the Gulf of Mexico to spawn. Dolphins experience the most predation pressure during the summer when

Bottlenose dolphins produce a extensive variety sounds that are divided into two categories: pulsed emissions, i.e. echolocation clicks and burst-pulsed sounds; and non-pulsed signals, i.e. whistles (Caldwell et al., 1990; Janik, 2013) (Figure 1:2).

Communication between killer whales is primarily used for reproduction, orientation and hunting (Erbe, 2002; Holt et al, 2009). The three sounds that killer whales produce are echolocation clicks, whistles and pulsed calls (Deecke et al, 2005). Clicks occur in a series and are short sounds used for orientation and when finding prey; whistles are used for communication when

Recent Off-Shore drilling in the United States in the Atlantic Ocean has had a very negative effect on Bottlenose Dolphins. The noise caused from drilling has negatively affected their ability to communicate effectively. Recently off-shore drilling has increased to help create more jobs in America however, the Bottlenose Dolphins have been paying the price. Off-shore drilling creates lots of boat traffic around the drilling areas which interferes with the dolphins ability to communicate through echolocation. However the main interference with dolphins communication has been caused by seismic testing from these boats. Seismic testing is when loud blasts of compressed air are sent deep into the ocean to bounce off the seafloor to test to

Spinner dolphins like to be the star of the show, given they’re the most acrobatic of all the dolphins. They will compete with each other, they are competitive animals. They compete on who does better tricks, but they are friendly afterwards. Spinner Dolphins communicate through spins, the louder the flop, the sterner they are, like an extreme exclamation

Dolphins are social animals, when in the wild they live in pods varying in sizes from 2-40 dolphins. They develop a social hierarchy with either a head male or female to essentially lead the group. In comparison, social bonds between dolphins and even their trainers in their tanks have also been found to have remarkable bonds, and specifically the partnership between the dolphin and its trainer has been notarized for their mutual respect. However, the human communication is nothing in comparison to the conversing between an actual pods of dolphins in the wild with one ultimate goal of survival.

Beaked whales are whales that use noise to communicate. Any type of unusual noises underwater can cause problems, so if there is a background coming from our equipment then they can't really communicate. You might be thinking, " It should be okay if they can't communicate." Well you are wrong. You see, whales use there communication as a backup if they are in trouble, such as being attacked, or even stuck for that matter.

Bottlenose dolphins will decrease their calls in the presence of certain vessels. Call rates decrease, frequency and length of whistles increase, and creaks changed in the presence of ferries and leisure boats. Dolphin whistles are a form of social communication. Vessel noise masks whistles interfering with important social interactions such as mating and mother-calf communication, it is hard for the receiver to recognize signals. Dolphins use creaks in echolocation; changes in these creaks reduce the efficiency of foraging. Short-term vessel noise effects on foraging and mating may turn into long-term, affecting residency patterns (David Lundquist et al.,

This paper explores the life of bottlenose dolphins. In this paper, we explain that dolphins are intelligent and general information about them. The research was conducted by analyzing books about bottlenose dolphins and doing online research. From doing this research, I learned the truth behind the myths of bottlenose dolphins and their anatomy.

The fish listen for popping from hunting dolphins, and stop singing when the sound gets

Transition: After learning about a dolphin’s sense of communication, we can now build upon this information by examining their unique behavior.

There is something about dolphins that fascinates me. They are some of the most intelligent and beautiful animals that I have ever seen. Their faces are so cute that every time I look at a dolphin it looks like it is smiling at me and wants to tell me something. The noises they make represent some kind of language and it makes me wonder if they can really communicate. I also want to know what kind of feeling they have and whether they have emotions. This is why I chose to do this I-search project on dolphins; the different kinds of dolphins there are, the places that they can be found and their mental abilities.

Bottlenose dolphins find fish by using echolocation. This is when a dolphin sends out a beam of short sonar pulses from its melon, or forehead. The beam reflects off of fish or other objects and echoes back to the lower jaw. The echoes are then sent to the ear bones where they are characterized. Using echolocation, dolphins are able to locate prey that is buried up to one and a half feet under the sand (Cahill 140-141).