Sunday, February 2, 2020
American Eels Habitat and Extinction Research Paper - 1
American Eels Habitat and Extinction - Research Paper Example One of the peculiarities of these eels is the regular basis of migration. In other words, they may not stay in a particular location for longer periods. They like to travel from rivers to river since it like fresh water very much. It stays major portions of tis life in rivers or fresh water sources and visit ocean mainly for spawning or laying eggs. A female eel can lay eggs as much as four million every year. However, after the egging period is over, it will suffer immediate death. Lafontaine et al. (2008) have pointed out that ââ¬Å"Since the 1980s, the American eel (Anguilla rostrata Lesueur) fisheries have declined dramatically in the Lake Ontarioââ¬âSt. Lawrence River watershed providing evidence of a large decline in population of this species (Lafontaine et al., p.185). American eels are decreasing in number over the last few decades because of various reasons such as climate changes, global warming, water pollution etc. Even though, the decline of eels have been noticed as early in the 1960ââ¬â¢s, the problem became intensified in the 80ââ¬â¢s and 90ââ¬â¢s. Eel landing started to decline considerably during the latter parts of the twentieth century, especially 1980 onwards. The decrease in the number of eel landing was calculated based on the catch per unit effort (CPUE) effort.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.