Nobody downloaded yet

Atlantic Stingray (Dasyatis Sabina) - Essay Example

Comments (0) Cite this document
Name Instructor Course Date Atlantic Stingray (Dasyatis sabina) STATUS: The Atlantic stingray is currently designated as a species with least concern (LC) due to a lack of significant decline in wild populations (Piercy). Localized freshwater populations however are threatened by water quality issues such as algal blooms, stormwater runoff, and waste water discharge (Passareli)…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER96.1% of users find it useful
Atlantic Stingray (Dasyatis Sabina)
Read TextPreview

Extract of sample "Atlantic Stingray (Dasyatis Sabina)"

Download file to see previous pages DESCRIPTION: The Atlantic stingray, Dasyatis sabina (Lesueur 1824) has a disc shape typical to all stingrays, and it is one of the smallest in its family (Piercy). It has a spade-like body form, having a relatively long snout and a long, slender, whip-like tail (McEachran 177). It has a brown to or yellowish coloration on the dorsal side which goes lighter near the edges and white or light gray on the ventral side (Passareli). To distinguish it from other similar genera, characters such as a certain ratio of snout length (25-27% of the total disc width) and snout angle (maximum of 107-122°) confirm its species identity. The outer corners of the disc body are broadly-rounded, while the posterior margin is moderately convex. The floor of the mouth has a row of three stout papillae, and has 28-36 rows of teeth. Both males and females have similar-looking teeth, rounded and having flat, blunt surfaces, except during mating season when the males develop sharper and narrower sets for clasping the female during copulation (Tricas 224). The tail is similar to a whip, long and tapered with a barb measuring up to 25% of the disc width, and this modified scale secretes venom from both the dorsal and ventral sides (Passareli). Maximum disc size could reach up to 12.8 inches in males and 14.6 inches in females living in coastal or brackish lagoons, while for freshwater rays sizes reach up to 8.7 inches for females and 8.3 inches for males. Like other members of the cartilaginous fishes, the Atlantic stingray is capable of generating weak electrical fields, both in finding prey and females at the benthic zone. FOOD: Food can be primarily anything that can be caught near the bottom of the habitat or the benthic zone, and these are mostly polychaetes, crustaceans, and bony fishes (McEachran 177). Other reported organisms that are hunted include bivalves, tube anemones, clams, nereid worms, and amphipods (Passareli). HABITAT: Atlantic stingrays live in brackish benthic water systems, where the saltwater meets fresh waters coming from estuaries (Johnson 75). There is a preference for sandy bottoms but with water depths less than 25m (Piercy). These fish migrate from brackish waters to fresh waters and back again, depending on the climate of the areas, which shows that they have varying but wide degrees of salt tolerance. Water temperature ranges for the species is around 24.5°C-31.0°C (Wallman 259). MATING: Initial studies mentioned that Atlantic stingray mating seasons start from late March when ovulation in females begin and lasts up to July (Johnson 74). Later studies indicated that the mating season could last as long as nine months, from August to April of the following year (Tricas 209). Changes seen in the males such as sharper teeth happen during the breeding season in order to clasp the females during copulation, which is comparable to some mating behavior of related species like in some sharks. PREDATORS: Predators depend on the location of the Atlantic stingrays. In brackish to coastal areas, sharks such as white shark, tiger sharks and bull sharks are the major predators (Passareli). In freshwaters, alligators are reported to be the major stingray predators. BEHAVIOR: Atlantic stingrays are non-aggressive fish, and only attack when stepped on (Passareli). When hunting for food, rays swim slowly near ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Atlantic Stingray (Dasyatis Sabina) Essay Example | Topics and Well Written Essays - 1000 words”, n.d.)
Retrieved from
(Atlantic Stingray (Dasyatis Sabina) Essay Example | Topics and Well Written Essays - 1000 Words)
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Atlantic Stingray (Dasyatis Sabina)

Virgin Atlantic

...another, smaller company – such as when Virgin Atlantic spun off Virgin America. Another major philosophy is that the airline must deliver outstanding customer service. Branson also looks at his airline through the eyes of the customer. Moreover, Branson indicates that Virgin never wanted to compete on price, but, rather, on service, and that the backbone of the service end of the brand is the entertainment options, because that is what Virgin knows and does best. As for management style, Branson hires friendly people over experienced ones, and the company promotes from within. Branson also has a democratic management style, as he listens to both his employees and his customers – his employees are given his home phone...
14 Pages(3500 words)Essay

Virgin Atlantic

...? Virgin Atlantic VIRGIN ATLANTIC Assess the major macro-environmental trends facing Virgin Atlantic as they operate in the airline sector and highlight the implications on the organizations strategic decisions of the trends identified. Virgin Atlantic is a UK airline, which forms part of Sir Richard Branson’s Virgin Group. In December 2012, Delta Airlines agreed to buy Singapore Airline’s stake that will need completion of approval by regulatory authorities. The airline’s headquarters are near Gatwick Airport in Crawley, West Sussex. They use a mixed Boeing and Airbus fleet, operating between Australia, Asia, the Caribbean, Middle East, Africa, North America, and the UK...
4 Pages(1000 words)Case Study

The Atlantic Slave Trade

4 Pages(1000 words)Essay

The Atlantic Slave Trade

2 Pages(500 words)Book Report/Review

Atlantic Conveyor Belt System

...The Atlantic Conveyor Belt System The Atlantic conveyor belt system was observed by scientists to have sped up the water circulation in the past years (NASA/Jet Propulsion Laboratory 2010). The Atlantic conveyor belt, which is also termed Thermohaline circulation, is one of the major ocean currents driven by fluxes of heat and freshwater across the sea surface and the subsequent mixing of heat and salt (Rahmstorf 2006). The ocean water circulation occurs globally due to the influence of established geophysical factors. The Atlantic conveyor belt system influences the global climate and probable changes in the speed of overturning circulation poses adverse effects. In...
2 Pages(500 words)Essay

Stingray's camuoflage, sting, and its adaptations to be more successful in hunting

...Association of theJournal of the Marine Biological Association of the United Kingdom, 83, 871-872. Grey, M., Blais, A. & Hunt, B. (2006). The USAs international trade in fish leather, from a conservation perspective. Environmental Conservation, 33 (2), 100-108. Lam, K., Tsui, T., Nakano, K. & Randall, D. J. (2005). Physiological Adaptations of Fishes to Tropical Intertidal Environments . Fish Physiology 21 , 501-581. Nunez, S., & Trant, J. M. (1999). Regulation of Interrenal Gland Steroidogenesis in the Atlantic Stingray (Dasyatis Sabina). Journal of Experimental Zoology 284 (5), 517-525. Richards, J. G. (2010). Physiological, Behavioral and Biochemical Adaptations of...
6 Pages(1500 words)Research Paper

Issue for Virgin Atlantic

... IT Issue on Virgin Atlantic In 2009, Virgin Atlantic Airways (VAA) faced a significant information and technology problem that reduced customer satisfaction and operations among employees. According to Mark Cameron, the head of IT infrastructure in VAA, the airline lacked an updated and proactive IT system that monitored clients on the plane and employees in their various departments (par 2). The air travel market was very competitive, and VAA desperately needed efficient and effective IT systems that link airport operations, data centers and other contact centers across the world. The system would solve problems relating to business applications thus facilitating quick and effective service to clients and meeting their demands... ...
1 Pages(250 words)Book Report/Review

HBC Atlantic Computer

...Answer Jowers should charge $6538 for Atlantic Bundle. It would mainly comprise of basic price of Tron $2000 + Cost of PESA $2000 + $1538 cost per server. Answer 2 Matzer would appreciate the price structure as it would not only deliver revenue for the company but also gives value to the customers by saving huge recurring cost on extra servers as required by the customers. Indeed, customers like as their complex net based applications would require more than 2 Ontario servers which a single Atlantic bundle is able to serve. Answer 3 Cadena’s sales force may not initially react favorably to Jowers’ price structure as the bundle cost cost also includes the cost of software which...
1 Pages(250 words)Case Study

Trans-Atlantic Slave Trade

...Trans-Atlantic Slave Trade Q1. Describe the role of the Portuguese in the development of the Trans-Atlantic Slave Trade? The Portuguese played a crucial role in the development of the Trans-Atlantic slave trade. Portugal was the first European nation to engage in slave trading, dating as far back as the mid to late 1400’s. During this time the Portuguese ships set sail on voyages down the West African Coast aimed at bypassing the Muslim North Africans, who had a firm monopoly on the trade of various Sub-Saharan commodities, such as spices and gold, which the Europeans wanted. These voyages helped the Portuguese make maritime discoveries and also furthered their expertise on shipbuilding,...
4 Pages(1000 words)Assignment

Atlantic Creoles

...﻿ Atlantic Creoles Slavery in America was a controversial phenomenon, and its consequences live up to the present. Most of the people subjected to slavery were mainly Africans who worked on the European plantations. The Atlantic Creoles traced their origin in the 15th century when Africans and European met around the trading factories along the African coast. Many acted as intermediaries to necessitate negotiations between the Africa merchants and European sea captains. The group had a culture advantage in that it would blend well with both the African and European culture. The mixed heritage enables them to be integrated into the European trade...
2 Pages(500 words)Book Report/Review
sponsored ads

Let us find you another Essay on topic Atlantic Stingray (Dasyatis Sabina) for FREE!

Contact Us