Comparison of digital video surveys with visual aerial surveys for bird monitoring at sea

Monitoring Whooping Crane Abundance Using Aerial Surveys: Influences on Detectability

The whooping crane (Grus americana), an endangered species, has been counted on its winter grounds in Texas, USA, since 1950 using fixed-wing aircraft. Many shortcomings of the traditional survey technique have been identified, calling into question its efficacy, defensibility, repeatability, and usefulness into the future. To improve and standardize monitoring effort, we began investigating ne...

Mural Painting Digital Surveys

The method presented in this paper answers the following question related to the documentation of mural painting conservation: how can information technology be applied in order to achieve ease of symbolizing and updating, better accuracy, flexible presentation, ease of integration and cross-link with other data? Furthermore, another important issue: are all these possible at a low cost? 1. GRA...

Monitoring Winter and Summer Abundance of Cetaceans in the Pelagos Sanctuary (Northwestern Mediterranean Sea) Through Aerial Surveys

Systematic long-term monitoring of abundance is essential to inform conservation measures and evaluate their effectiveness. To instigate such work in the Pelagos Sanctuary in the Mediterranean, two aerial surveys were conducted in winter and summer 2009. A total of 467 (131 in winter, 336 in summer) sightings of 7 species was made. Sample sizes were sufficient to estimate abundance of fin whale...

The stock surveys and distribution of Haemulidae in the northern Oman Sea (Sistan and Baluchistan province)

This research was carried out to assess the amount of the biomass and Catch Per Unit of Area (CPUA) and also to determine the distribution pattern of the haemulidae family in the northern parts equipped with trawl floor area cape of meydani ('58 ˚55) east To Govater (61°25׳) east in the waters of the Oman Sea (Sistan and Baluchistan province) based on trawl survey results in 2013 by R/V Ferdo...

Review of Unmanned Aerial Systems (UAS) for Marine Surveys