Three spined stickle back fishes are small fishes with a deep body with three spines in front of the dorsal fin and are therefore are named stickle back because if the spines on the dorsal fin. These fishes are brownish, green and pale or orange reddish on the underside and are about 6 cm in length. The breeding male fish usually has a red belly and blue eyes. The three spined stickleback fishes are found in Northern Asia, northern America and Europe and some parts of southern and central Europe such as Belgium. These fishes take about three years in breeding and they normally breed between late March and early August. Many populations of three spined sticklebacks take two years to mature and because of this they have one breeding season before dying.
Territorial males have a red throat and that red color is a sign stimulus which shows aggression towards other male and courtship behavior from female sticklebacks. However, the red color is not universal in all the species; there are also some black throated populations which are found in peat stained waters. Some males also develop blue irises on maturation, the breeding behavior of stickleback fishes in unusual because the male is usually the one who look after the eggs until they are hatched and young until they are independent on their own and this kind of parental care is rare in fishes towards their eggs.
The scientific name of three spined stickleback fishes is Gasterosteus aculeatus. The male stickleback undergoes a dramatic change during early spring for breeding. His throat and belly become bright orange – red and his eyes turn bright blue as well as the slivery scales appear on his back. These colors act as a warning to other males to keep them away from his territory...
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...the research of the courtship between two different male sticklebacks that were taken from Japan sea linage and Pacific Ocean lineage was studied ( Haglund et al.,1992; Higuchi &Goto,1996; Ishikawa & Mori,200;Ishikawa et al.,2006;Kitano et al.,2007) showed a bigger divergence between the dances of each lineage. The male fish from Pacific Ocean lineage performed a zig – zag dance, while the males from the Japan Sea lineage performed a different dance and is called as a rolling dance. The study also explained the kinematic analysis on the dance of both fishes revealed that the tempo of zig- zag dance is faster than the rolling dance and the head movements in the courtship explained showed tha the Japanese Sea males erected the gill covers, extended the red throats and opened their mouth more often during the rolling dance than the Pacific Ocean males zig - zag dance.
Known as Pterois Volitans in the animal kingdom, also called the red lionfish, is a sight to behold in the tropical waters as they swim like an underwater butterfly in the sea. In waters not native to their origin, as they are from the Pacific and have predators that will have them for a snack. Invasive to the Caribbean Sea they have rapidly reached the Gulf of Mexico and far south, spreading to parts of South America. The lionfish has become a persistent pest that’s more trouble than what it appears to be, attractive yet deceptive with a striking pattern of white and red stripes. In the New York Times article, A Call to Action… and Even Rodeos, scientists say that, “from 2005 onward, lionfish have become the most numerous nonnative invasive species in the world.” The average pound fish is one of nature’s clever creations, a venomous foe with spines and an infinite appetite that reproduce quickly. Invasive species are notorious because they have no or almost nonexistent natural predators and they are adapt to their new home very well. The biological adaptations of this fish has caused both ecological and economical mayhem, serious measures have been taken up to control their population as well as to protect our coral reefs.
The Longnose gars are found all over the eastern united states and grow to be a rather big fish. Their scientific name is Lepisosteus osseus and they are members of the gar family (Groves). Gars have been around for a very long time, some said even back to prehistoric times. However even with them being around for a long time, there is still little research done on them because they are considered pests to many fisherman. According to the Chesapeake Bay Program This is because “most fisherman consider gars to be a nuisance because they damage fishing gear and eat more important fish species” (Chesapeake Bay Program, 2012).
To begin with, it is an innate behavior when an animal has the instinct to know when to mate and to which species. This is known as a Courtship behavior. For example, I own a fish and a snail which live in the same tank. During the mating time, they both know not to mate with each other. They won’t mate because they aren’t the same species. When they find their correct mate, they may use dances, songs, colorful displays, or pheromones to attack their mate. Usually birds do a dance or song while peacocks show the colorful displays of their feathers. This r...
Shirihai, H. and B. Jarrett (2006). Whales, Dolphins and Other Marine Mammals of the World. Princeton, Princeton University Press. p.185-188.
Wofford, Sarah Jane. "Sex and Fighting: Male and Female Crayfish Utilize Different Assessment Strategies During Agonistic Behavior." MS thesis Graduate College of Bowling Green, 2013. Web.
Bottle-nosed dolphins are an extremely adaptable mammal. For example, the Atlantic Ocean form tends to be a little smaller and stockier with a shorter rostrum (nose) compared to the Pacific form. In Scottish waters, Bottle-nosed dolphins are chubby with a dark gray complexion, while the in Australian waters, Bottle-nosed dolphins are thin, light gray appearance, with a dominant circle around each eye. The reason why this dolphin may change its physical appearance is because there may be more fish in Scotland, or the prey may be a slower breed, making the Bottle-nosed dolphin not work as hard for its food, therefore creating a chubbier breed of Bottle-nosed dolphin compared to other parts of the world. Bottle-nosed dolphin have recently been introduced and are now bonding with hum...
Monotreme Reproductive Biology and Behavior. Monotremes are mammals that are oviparous, or egg-laying. There are only 3 extant species of monotremes: the playtpus and two species of echidna. Their reproductive systems are highly specialized to facilitate both the production of eggs and milk.
In society, constructs of correctness have been formed on the basis of expected, gendered behavior. Individuals have traditional roles that they play which are based on the historical performance of their gender. Although very rigid, these traditional roles are frequently transferred, resulting in an altered and undefinable identity that exists beyond the boundaries of gender. These transgressions into the neuter role are characterized by a departure from the normal roles of society which, if successful, complete the gender transference and allow the individual to live within a new set of boundaries. The Female Marine, or the Adventures of Lucy Brewer is the fictional autobiography of a woman who recounts her experiences in the navy and life as a cross-dressed male. Throughout her narratives, Lucy is able to successfully leap back and forth between gender roles without repercussion. On the other hand, Hannah W. Foster's The Coquette is a sentimental seduction tale that narrates the tragic demise of a young woman who attempts to exceed acceptable behavioral boundaries by establishing herself as a virile, independent individual, a role established by Simone de Beauvoir to be associated with the male (Beauvoir 405). Because of the similarity in the situations of these women there lies a need for an examination of their narrative purpose. The differing results of success with these women are found in the author's reflection of their audience's narrative expectations that deal with the social outcome of women who attempt to move beyond gender-identified behavioral roles.
Olsson, O., Bonnedahl, J., & Anker-Nilssen, P. (2001). Mate switching and copulation behaviour in King Penguins. Journal of Avian Biology, 32(2), 139. Retrieved from EBSCOhost.
The female red Oophaga pumilios prefers to only mate with red males which leads to speciation. According to GrrlScientist, 4 researchers conducted an 18-month mark-recapture study on this. These researchers captured 677 wild Oophaga pumilios (312 males, 274 females, and 91 juveniles) (GrrlScientist, “Choosy Females Speed Speciation of Poison Dart Frogs.”). When the researchers analyzed the data, they found that 91% of the females mated with red males. With the yellow females, there was no clear pattern on how they mated leaving out that most of the frogs were red. That leaves the frogs that were yellow not being able to breed down. If this was to continue, then the frogs would separate and become different species of different
The purpose of this study was to better understand the molecular mechanisms that control hindlimb reduction or absence during vertebrate evolution. The reduction or absence of hindlimbs has evolved in many different species such as reptiles, marine mammals, fish and amphibians. However, for this study the fish species known as the threespine stickleback species was focused on. Within this species the marine stickleback has a pelvis region where as the benthic stickleback does not. In order to analyze the molecular mechanisms at hand the scientists conducting this experiment carried out genetic crosses between threespine stickleback fish with complete or missing pelvic structures. This allowed the scientists to be able to identify the general
The morphology of whale sharks is mostly similar to aquatic fish species, but many specific traits help differentiate them from the rest. Whale sharks are the largest fish in the world and can reach a size of around 20 meters (Martins, C., and C. Knickle). This is often compared to the size of a school bus. The shark has a very large transverse mouth. They have 5 very large gill slits and have a larger first dorsal fin compared to the second one (Whale Shark). They have a distinctive spotted “checkerboard” pattern with stripes (Martins, C., and C. Knickle). It is not exactly known why they have this specific body marking. It is believed that the body markings act as a camouflage. The strange thing about whale sharks is that they have 300 rows of teeth that play no role in feeding (Martins, C., and C. Knickle).
Why do kissing fish kiss others? You you're probably thinking it’s so they can kiss, but you’re wrong.It’s because they are having a showdown! They do it for the spot to be the dominant fish. This part of their body is what people like about the fish,but there are plenty of other amazing features about this fish. Another attraction is their color. Some of the fish are different types/colors such as “dwarf” and “balloon pink”.Balloon pink are like a hot pink color.Dwarf are like a brown color but are shorter than others. The structure of the fish is changed based on the length of any of the fins.
Did you know in the world there are more than 90 species of whales, dolphins, and porpoises? (WDC) The dolphin is a very important animal to the ocean and there are many different types to discover. In order to learn about dolphins, it is important to discuss where they live, their appearance, and what they eat. Some helpful words to understand are “dorsal fin”, a dorsal fin is the top pointed fin on the dolphins back, “flippers”, a flipper is a flat fin that dolphins use to swim, and “echolocation” is a tool dolphins use to find food by sounds bouncing off of objects (dictionary.com).