Maritime environmental monitoring based on wireless sensor networks is a challenging area of research due to the characteristics of the water environment. Thus, there are certain designing considerations must be taken into account, for instance network architecture, remote sensor data management and security of data transmission. The system must have the ability to adjust its sensor members in the network in response to environmental changes, and the condition of sensor nodes. In terms of data security, our scheme applied number of security algorithms on the network, such as advanced encryption standard based wireless sensor networks and message digest algorithm, which is providing source travelling data via authenticated sensor nodes to end user. For the sake of network stability, this work presents new technique relaying on recommendation for node called Leader node. This node is monitoring all network members behavior and reconstruct the network topology in case of abnormal member behavior. The system has been tested in real time on Waspmote sensor platform in University of Limerick Campus.