We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Nobody downloaded yet

On the Basking Shark Forming an argument to list the Basking Shark as an Endangered species (with consideration to ES - Research Paper Example

Comments (0)
Summary
Basking Sharks: Should They Be Considered Endangered? Description, Systematics, Distribution & Significance The basking shark is considered one of the biggest fish in Canadian waters, according to Compagno (2001). It is also the second largest and highly endangered shark species…
Download full paper
GRAB THE BEST PAPER
Research on the Basking Shark Forming an argument to list the Basking Shark as an Endangered species (with consideration to ES
Read TextPreview

Extract of sample
On the Basking Shark Forming an argument to list the Basking Shark as an Endangered species (with consideration to ES

Download file to see previous pages... The color of basking shark is typically blackish to grey-brown, grey or blue-grey above and below the body and fins, often with irregular white blotches on the underside of the head and abdomen (Compagno, 2001 from COSEWIC, 2007). Basking sharks prefer cool and temperate coastal shelf waters and are distributed worldwide. In the North Atlantic (Compagno, 2001), basking sharks are sighted in waters off countries as far south and east as Senegal, through Europe, Norway, Sweden, Russia, Canada, along the eastern seaboard of the United States and into the Gulf of Mexico. In the North Pacific, they are observed as far south and west as Japan, through to China, Alaska, British Columbia, along the western seaboard of the United States and Mexico (Compagno, 2001, from COSEWIC, 2007). Habitat requirements The habitat requirements for basking shark (Sim et al, 1997) are associated with the oceanographic events on zooplankton concentration. Fronts off headlands, around islands and in bays with strong fluctuation of water masses from tidal flow were also frequented. In a study conducted by Compagno (2001), it recorded basking shark in the epipelagic zone by aerial surveys, in pelagic driftnet fisheries and is caught in bottom trawls off the St. Lawrence River, Scotian Shelf and Scotland. Te Newfoundland Observer Program (NOP) also noted that basking sharks have been caught in trawl nets fishing in depths up to 1370m. Fifteen percent of the records from waters deeper than 1000m were also observed. Skomal (2005) suggested that basking sharks migrate to different wintering habitats. They are seen to be influenced by patterns of prey distribution, varying by depths, location, and season (COSEWIC, 2007). Observed on the habitat trends of the basking sharks is the consistency of target areas and preference for high concentration of zooplankton. This has been linked to both large and small scale oceanographic conditions that change quickly (Sims and Quayle, 1998, from COSEWIC, 2007). Reproduction and Mortality The pairing of the basking shark (Sims et al, 2000) is perceived to occur in early summer. This is based on the observed courtship behavior which is nose to tail circling, and scarring. The gestation period of basking shark with a litter of six young is at 2.6 years (Pauly, 2002). The assumed length at birth is 1.5m. The time between successive litters may be two to three years (Compagno, 2001) and like other lamnoid sharks, the basking sharks develop embryonic ovophagy which supplies nutrients to the developing embryos (Compagno, 2001, from COSEWIC, 2007). The longevity of the basking shark is approximated at 50 years. The age of maturity is about 12 to 16 years in males and 16 to 20 years in females (UK CITES, 2002). Generally, females are presumed to mature at larger sizes than males with an estimated size at 4.6 to 6.1m in length at the stage of maturity. Yearly productivity ranges from 0.013 to 0.023 based on the methodology of Smith et al (1998). They used age at maturity, maximum age and average fecundity. Smith et al (1998) suggested that the potential for recovery or rebound rate may be lower for basking shark when compared to other species of Pacific sharks. Pauly (2002) determined the natural mortality to be 0.068 based on the age of maturity at 18 years for female which midrange is 16 – ...Download file to see next pagesRead More
Comments (0)
Click to create a comment
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Summary
Irrespective of the fact that humans have been fishing the basking sharks for a long time, the fish still retains the habits of exposing itself such that it is easily located and captured. The fish has great economic importance due to its liver that is used for oil extraction.
3 Pages(750 words)Essay
Can Minnesota justify taking the grey wolf off the endangered species list
Introduction a. Minnesota justifies the taking of the grey wolf off the endangered species. b. . The research focuses on justifying the removal of the grey wolf from the endangered species list. c. The research includes the voice of the pro –wolf conservation groups.
2 Pages(500 words)Research Paper
Endangered Species
-The endangered species face problems at the hands of nature. -They also face the problem at the hands of human beings. -Endangered species are important to us as they can provide many benefits. -They also have an effect on the whole environment and mostly concern with the stabilization of the ecological systems.
6 Pages(1500 words)Research Paper
Endangered Species Paper
Unlike precedent, group extinctions caused by natural calamities such as volcanic explosions, asteroid hits as well as shifts of natural atmosphere, today’s crisis is almost single handed caused by human beings. Almost all species facing extinction are at risk through people activities, principally those caused by global warming, habitat loss as well as the emergence of alien species.
5 Pages(1250 words)Research Paper
Endangered Species Reseach Paper
This branch of philosophy entails at conserving natural resources (Jardins 14). Plants and animals are living things and part of human life. They should be associated with human beings’ guiding principles and also moral and ethical values. Human beings need to check on their actions and impacts on the environment.
4 Pages(1000 words)Research Paper
Endangered Species Research Paper
Study shows that by the year 2050, more than 50 percent of different species will be subjected to extinction (Barr 24). It is indeed terrifying but also factual the world is in the midst of the most horrible wave of species extinction since the terrifying extinction of the dinosaurs, centuries ago.
5 Pages(1250 words)Research Paper
Why grey wolves should not be on the Endangered Species list
Why Grey Wolves Should Not Be on the Endangered List. This paper explores the state of the populations of grey wolves and argues that grey wolves should not be included in the list of species that are endangered. The grey wolf or the gray wolf was once on the verge of extinction after having thrived in many areas in North America, due to large scale hunting and the loss of habitats due to human activities.
4 Pages(1000 words)Research Paper
Shark Finn Soup
The essay pertains to two aspects of the shark fin harvesting that is the unethical practice of exposing sharks to a silent and painful death and how it has lead to a fall in the numbers of varied shark species around the world. The essay also happens to throw light on the cultural and economic aspects of shark fin harvesting.
8 Pages(2000 words)Research Paper
Endangered species
Such human activities include irresponsive hunting habits, infrastructural developments, industrial activities, and other major activities that either
2 Pages(500 words)Research Paper
Trade in Endangered Species
The purpose of this paper is to analyze the efficiency of the existing international bans on trade in endangered species. The paper will argue that legalizing trade will not save these animals from extinction. Further, it will present possible measures which can be taken in order to protect endangered animals.
9 Pages(2250 words)Research Paper
Let us find you another Research Paper on topic Research on the Basking Shark Forming an argument to list the Basking Shark as an Endangered species (with consideration to ES for FREE!
Contact us:
+16312120006
Contact Us Now
FREE Mobile Apps:
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us