منابع مشابه
Effects of Otter Trawling on a Benthic Community in Monterey Bay National Marine Sanctuary
Bottom trawling is one of the most disruptive and widespread human-induced physical disturbances to seabed communities and has become a global environmental concern. We used a comparative approach to test the hypothesis that persistent otter trawling decreases bottom habitat complexity and biodiversity, increases the abundance of opportunistic species, and benefits prey important in the diet of...
متن کاملA prospectus for UK marine sustained observations.
It takes a certain type of scientist to have the forethought and motivation to initiate a series of repeat measurements that may not show significant change throughout their lifetime. However, it is such records that we must turn to if we are to make informed decisions regarding long-acting issues such as the impact of climate change on human habitation, food supplies and ecosystem health. The ...
متن کاملEffects on marine sedimentary habitats of experimental trawling analysed by sediment profile imagery
Demersal trawling causes significant impact on marine benthic habitats including sediment biogeochemistry and faunal composition. To examine the effect of shrimp trawling on benthic sedimentary habitats a replicated Before/After (B/A) experiment was performed in the Gullmarfjord, Western Sweden, after 6 years protection against trawling activities. The experimental area was randomly divided int...
متن کاملThe influence of the California marine layer on bill size in a generalist songbird.
The hypothesis is tested that birds in hotter and drier environments may have larger bills to increase the surface area for heat dissipation. California provides a climatic gradient to test the influence of climate on bill size. Much of California experiences dry warm/hot summers and coastal areas experience cooler summers than interior localities. Based on measurements from 1488 museum skins, ...
متن کاملTrawling the Web for Emerging Cyber-Communities
The web harbors a large number of communities -groups of content-creators sharing a common interest -each of which manifests itself as a set of interlinked web pages. Newgroups and commercial web directories together contain of the order of 20000 such communities; our particular interest here is on emerging communities -those that have little or no representation in such fora. The subject of th...
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ژورنال
عنوان ژورنال: Marine Pollution Bulletin
سال: 2009
ISSN: 0025-326X
DOI: 10.1016/j.marpolbul.2009.06.009