The visual line transect aerial survey conducted by marine mammal observers aboard the turbo commander was 685 of the cost of the photo strip transect survey aboard the same aircraft and 94 of . The gov means its official federal government websites often end in gov or mil before sharing sensitive information make sure youre on a federal government site the site is secure the https ensures that you are connecting to the official website and that any information you provide is . This volume comprises the proceedings of a symposium on marine mammal survey assessment methods which took place in seattle washington usa table of contents instructors. Marine mammal survey and has been added to your cart add to cart turn on 1 click ordering prime book box for kids story time just got better with prime book box a subscription that delivers hand picked childrens books every 1 2 or 3 months learn more product details . Future directions for acoustic marine mammal surveys stock assessment and habitat use david mellinger1 and jay barlow 2 co convenors executive summary current uses of acoustics acoustic survey methods are now used pri marily to augment visual sighting methods during line transect surveys
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