ipl-logo

Fiddler Crab Case Study Answers

720 Words3 Pages

Nadia Mendoza 09/16/16 BIOS 101 Problem Set 1 1. . a. The fiddler crab is a semi marine-terrestrial crab that encompasses many different species of crab (Wikipedia). The main characteristic of this crab is that the males generally have one large claw. They are likely to compete for resources like food and shelter on land or in the ocean with other species of animals also living there. b. The hypothesis she was testing was: The distribution of the crab is determined by osmoregulatory physiology. Her results showed that the U. imadeitupensis do not survive more than 2 weeks in the marine enclosures. c. It looks like the U. imadeitupensis started to compete with the U. imaginariensis after 48 hours in the same marine enclosure. These results …show more content…

The species richness is 7. b. Species n n/N ^2 Plodia interpunctella 4 0.04 0.0016 Abrenthia cuprea 26 0.26 0.0676 Achatia distincta 21 0.21 0.0441 Acronicta acristrigatus 9 0.09 0.0081 Agonopteris dimorphella 20 0.20 0.0400 Epimartyria pardella 12 0.12 0.0144 Heliomata cycladata 8 0.08 0.0064 Total 100(N) 0.1822 Simpson’s index of diversity= 1-Spi^2 = 1-0.1822 = 0.817 c. The Epimartyria pardella is a species of moth that was first found in Oregon and north-western California in the late 1800s (Wikipedia). They thrive during the day and the warmer months of the year. 5. . a. N= (100*100)/36= 277.77 ~ 288 individuals in population b. Yes, the yellow tang is a species of saltwater fish. Even though they are the most common fish in areas like Hawaii and Japan, they live in shallow reefs and are commonly taken to be exotic pets to be put in aquariums which could affect their population

Show More
Related
235 Words | 1 Pages

Crayfish are decapods pertaining to the phylum arthropoda, which are invertebrates and contain an open-circulatory system.1 The system works by the hemolymph getting re-oxygenated in the gills before being transporting to the heart by brachio-cardiac veins and then pumped to sinuses that bathe tissues with oxygenated hemolymph.2 The crayfish contain a neurogenic heart that depends on neuronal input from cardiac ganglion.3 The neurogenic heart requires nerve impulses to produce contractions in contrast to a myogenic heart that can contract independently from the nervous system.3 The crayfish heart will beat due to the reaction of the ganglion to stimuli in the environment.4 Stimuli will affect the autonomic nervous system in the crayfish that control involuntary actions such as the heart rhythm.4 Neurotransmitters are the chemical signals in which the nervous system regulates both heart rate and contraction.3The autonomic nervous system breaks into two categories as parasympathetic system that is involved in relaxation of organs and the sympathetic system that will stimulate increased activity. Neurotransmitters can either increase or decrease heart rate by altering the patterns in neural activity of the heart.4 Crayfish are poikilotherms, which means they cannot metabolically thermoregulate thus conform to the ambient temperature in the water.

Read More
589 Words | 3 Pages

It was also observed that there was no decline in horseshoe crabs and in fact, the population has held steady with the likelihood of

Read More
266 Words | 2 Pages

In the essay “High Tide in Tucson” by Barbara Kingsolver depicts the main point of the essay as Human Nature and evolution. During the essay Barbara has a hermit crab show up at her home. We see the hermit crab as a metaphor. The hermit crab is characterized as a person or animal, depending on the reader, who got into an unnatural state. Later we see Barbara leave her home to travel to a new state, there she live in a new place where she had to adapt to her new environment.

Read More
70 Words | 1 Pages

Horseshoe crabs, marine arthropods known for their horseshoe like shells have been roaming the Earth long before the dinosaurs. These living fossils only inhabit the Eastern Shore and can be found on Delaware beaches such as the Delaware Bay, but these living relics may be in for extinction. Due to this exact reason Delaware has begun studying and protecting these species. Horseshoe crabs are vital to the Delaware Bay ecosystem,

Read More
1239 Words | 5 Pages

The article “Consider the Lobster” by David Wallace was first published in August 2004 and it has led to a lot of public controversies based on the morality and ethicality, surrounding the massive cooking of the lobster. There have been a lot of debates also from the vegetarians and the animal rights activists concerning the great lobster festival held at the Penobscot festival every late July. One thing we ought to understand is that the lobster is a summer food, and most people would want to have it freshly caught from the sea. In addition, it is a festival that is performed once a year, and therefore it gives them some time to reproduce. However, the central issue raised concerning this festival is based on the fact that some people feel that the festival is completely against the animal rights, and especially inflicts pain to the lobsters.

Read More
1547 Words | 7 Pages

Young hermit crabs will often pick up a young sea anemone to attach to their shell and they become partners for life. Hermit crabs and sea Anemones engage symbiotic relationship, meaning they live in harmony together. The sea anemone offers protection for the hermit crab. When in danger or facing a potential threat, the hermit crab somehow is alert. The sea anemone spreads out long stinging threads over the hermit crab and extends its stinging tentacles out as additional protection, therefore the crab is less likely to be eaten.

Read More
1085 Words | 5 Pages

In the book, “Crabs Dig Holes According to Size of Their Shells” by James McPherson He talks about his ‘shell” which is his room, and crabs which is himself. The story is mostly about him being alone and him seeming like he is sad about something in life, which brings me to my thought of what his message is. My thought of his message is McPherson’s message is that at one point in life you are going to hit a low in life then develop a shell you want to hide in. My first quote is “Something was denying me peace because I was denying it from range and meaning” To paraphrase the quote the keywords are deny,peace and something. In the quote the word deny means that he is denying his own peace by something in life.

Read More
232 Words | 1 Pages

Brine Shrimps tend to hatch in specific environmental conditions, such as high and low salt concentrations in water, weather and temperature. As one of the environmental conditions in which Brine Shrimp eggs hatch is water salinity and so, in this assignment, we were given 4 different salinity levels of water, which were 0%, 3%, 6% and 9%. As a result of the experiment, we noted that after 24 hours only one egg hatched at 3% salinity level and none at 0%, 6% and 9% levels. The second day, which was after 48 hours, there were 0 shrimps that hatched in 0% and 9% salinity levels, whereas at 3%, 7 out of 46(15.3%) eggs hatched and 6 out of 49(11%) at 6% levels. Based on this data our group concluded that the best level for hatching shrimps is 3%

Read More
499 Words | 2 Pages

The Asian shore crab has recently invaded the temperate east coast of North America, being a native species to temperate and subtropical regions of the western pacific it can thrive in any like environment (2). The first reports of this species in North American waters were in intertidal habitats in Delaware Bay and stretch to areas of the coast of Maine (2). In a study from 2002 to 2005 of Asian shore crabs in Western Long Island Sound Estuary it was seen

Read More
587 Words | 3 Pages

Introduction In 1867, the Federal Department of Fisheries and Oceans (DFO) was created to regulate and control lobster fishing by issuing licenses, creating fishing seasons, documenting quota, regulating how many people could fish lobster, and how many fish could be brought ashore (Campbell, 2017). A hundred and fifty years later, DFO is still in the position to manage the Prince Edward Island lobster fishing industry. This is not the beginning of the story and this paper will discuss the people who fished off PEI before DFO was created; scientific information needed to know before fishers can catch lobster; the evolutionary technological changes in the lobster fishing industry. The purpose of this paper is to share more information about

Read More
914 Words | 4 Pages

It lives in waters around 2000 feet deep. They live in Coral Reefs, and they are the only catfish that do. The Coral Catfish was discovered in 1982 in the Indo Pacific. A few facts about the Coral Catfish is they have barbells on their mouth, they have a poisonous spine, and they swim in spheres. Many people keep Coral Catfish as pets, so without them many people could not have as cool homes.

Read More
143 Words | 1 Pages

Some ways that the medical assistant can demonstrate professionalism when supporting patients who might be uncomfortable with having their skin examined by asking for their permission before touching them. It is very important for the patient to be comfortable with the medical assistant enough so they can see what is going on. Another way to demonstrate professionalism when dealing with patients that are uncomfortable with having their skin examined is by letting the patient know that you are not there to judge them. Explaining to the patient that you are only there to help find out the problem is vital because as an MA, you have to be able to see if there is any necrosis, redness, or dryness of the skin. Some patients might be embarrassed

Read More
1988 Words | 8 Pages

In addition to birds, plenty of fish can be found in the basin and fishermen frequent the basin in search of Tilapia (3). Tilapia can be found by the hundreds in the basin along with corvina and an occasional striped bass, mullet, croaker, or sargo (3). The endangered pupfish, though rare, also rely on the basin for survival (10). Pupfish are also the only native species in the Salton Sea, thriving in shallow bodies of water with a high salt and heat

Read More
1087 Words | 5 Pages

Horseshoe crabs are marine living fossils, probably traced back to 485 million years ago. There are two horseshoe crab species found in Hong Kong. Horseshoe crabs are an ancient marine chelicerates, identified as the Class Merostomata, Order Xiphosura. The animals are identified by the possession of appendages around their ventral mouth and their swimming legs at their distal end.

Read More
2541 Words | 11 Pages

Within the first group, Haplochrominae, there are two subgroups. Both subgroups require different environments which is something that you should consider when setting up the tank. The first one, known as Haps, consists of open water and sand dwelling species. The second subgroup is known as mbuna, which means “rockdwellers”. The Mbuna fish are smaller, and both sexes are often brightly colored, though in some species the females may be brownish overall.

Read More

More about Fiddler Crab Case Study Answers

Related Topics

Open Document