Estuary

Dolphins can live into 30 years. So based on the comparison between dolphins in Hong Kong and dolphins in other places, the dolphins in Hong Kong have a shorter lifespan. Besides that, the largest population is found in coastal areas of Pearl River Estuary and only 62 individuals’ stays in Hong Kong. History of pink dolphins in Hong Kong In 1637, Chinese White Dolphins was first discovered in Hong Kong areas by the adventurer Peter Mudy…

The Historical Predation of the West Indian Manatee The West Indian Manatee (Trichechus manatus), also known as the sea cow; was listed as an endangered species by U.S Fish and Wildlife Services in 1972. However, since then it has been downgraded from an endangered species to a threatened species (Heavy Poaching in Prime Habitat: The Conservation Status of the West Indian Manatee). The main reasons behind their decline; are pollution in the water, powerboats, and slow reproduction. As a result,…

Recruitment of Organisms in the Galveston Ship Channel Abstract A study was done in the Galveston Ship Channel to see the recruitment of sessile or fouling organisms to a substrate. A total of six organisms were found. They were Barnacles, Serpulid Worms, Bryozoan, Limpets, Tunicates, and Amphipods. Recruitment structures were created by the students and were put into the Galveston Ship Channel and left for five weeks to allow adequate time for organisms to adhere to it. A full mesh cage was…

Red Snapper Industry of Pensacola Critical to understanding the eventual development of the fishing industry in Pensacola is recognizing the city’s geographical location and land features. In Hawkshaw: Prehistory and History in an Urban Neighborhood in Pensacola, Florida, the environmental setting is laid bare. A major land shaping force in the area is the Gulf of Mexico. During the Pleistocene Era, the sea level was 300 feet lower than it is today due to “glacial episodes.” Due to the low sea…

Do the coastal defences at Dawlish Warren have a significantly larger impact on coastal processes than at Slapton Sands? Throughout this independent enquiry I will be examining the structure and location of the majority of the coastal defences at two drift aligned depositional landforms on the South Devon coastline; Dawlish Warren (the geographer online)1 and Slapton Sands (Chadwick et al, 2005)2. In particular, the success of the defences placed at these two landforms will be compared by…

According to the National Wildlife Federation article, “Habitat Loss” by the NWF editorial board, pollutants such as untreated sewage, mining waste, acid rain, fertilizers and pesticides concentrate in rivers, lakes and wetlands and eventually end up in estuaries and the food web. Dams and other water diversions siphon off and disconnect waters, changing hydrology and water chemistry. During the dry season, the Colorado River has little to no water in it by the time it reaches the Sea of Cortez.…

Exxon Valdez spill, dispersants were also pumped and spread over the leak to help break up the oil in the area. In May, oil began to contaminate beaches in Louisiana. Here it was manually removed, which proved to be very difficult in the marshes and estuaries. In June, Mississippi, Alabama, and Florida beaches became affected by the oil. Total, around 1,100 miles of the coast was polluted, and three years later, around 340 miles still needed to be cleaned up. In June 2013, cleanup finally ended…

lightships in England from the 1670s through the 1730s. We focus particularly on the case of the opposition faced by private developers from Trinity House for the construction and operation of the lightship on the Nore, a shallow area on the Thames estuary going in and out of London from the North Sea. Section 4 ties this case to the argument that, rather than being an instance of market failure, the English (and Welsh) lighthouse system under Trinity House before the 19th century illustrates an…

The fossil record; what is it? First of all we need to know what a fossil is. A fossil is evidence of a life from years ago which has been preserved in some way. This includes impressions or remains of an organism embedded in strata (Biology Online, 2011). Now that you have an idea of what fossils are, what is the fossil record? The fossil record provides information about the history of life on earth through the placement of fossils within the rock strata. The fossil record also shows how a…

LITERATURE REVIEW 2.1. Introduction The aim of this chapter is to give a detailed review of remote sensing theory and its application in lakes/reservoirs, rivers, estuaries and coastal zones, especially in water quality. It will also give a review about the researches pertain the use of remote sensing techniques in Lake Nasser. 2.2. Remote sensing theory Remote sensing, also called earth observation, is a way to get information about objects by collecting and analyzing data without being in…