Results 211 to 220 of about 70,647 (263)
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Community Effects of Fishing

2019
This chapter uses the community model to repeat many of the classic impact calculations of a single stock on the entire community. Here, a focus is the appearance of trophic cascades initiated by the removal of large predators. When a component of an ecosystem is perturbed, the effects are not isolated to the component itself but cascade through the ...
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Chemical Communication in Fish

Canadian Journal of Fisheries and Aquatic Sciences, 1982
Chemical signals (pheromones) have been shown to be involved in schooling, territorial marking, species, sex and individual recognition, courtship, the induction of physiological readiness for mating, and in parent–young interactions. Alarm substances released from damaged skin elicit avoidance behavior.
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Teach a Community to Fish

2018
Have you ever swept a net through a stream, a lake, or a river and found a fish you did not recognize?
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Effects of trap fishing on reef fish communities

Aquatic Conservation: Marine and Freshwater Ecosystems, 2006
Abstract Trap fishing is widespread on coral reefs but the sustainability of this practice is causing concern because it is efficient and unselective. The effects of trap fishing were investigated by comparing fish assemblages among six Caribbean islands subject to different trapping pressures.
Julie P. Hawkins   +3 more
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Historical Fishing Communities

2016
Community-building is one tool of human resilience to overcome the challenges of a hostile environment such as the marine. The chapter provides an overview of how the concept of community has been deployed in historical and social anthropology studies of maritime communities since the 1920s.
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The benthic fish community

1991
Abstract There is a remarkable benthic fish community in deep water in Lake Tanganyika that is rich in endemic species and genetically diverse. Its lower limit is determined by oxygen concentration, some species ranging down to about 200 m depth at the south of the lake where the oxygenated layer is deepest.
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Visual Communication in Fishes

1980
The intensity and spectral distribution of the light encountered by an animal species set reasonably broad operational limits for the efficient generation and reception of visual signals. This phenomenon is of special importance to fishes because aquatic environments cause profound changes in the nature of light that penetrates to any depth (Blaxter ...
Joseph S. Levine   +2 more
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Fishing communities at risk

Nature Climate Change, 2019
With climate change, marine species are on the move and changing in abundance. Now, research shows that the ecological impacts of climate change will differentially affect fishing communities, even within the same region.
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Communication in Fishes

2006
Fishes, the most abundant and diverse group among all vertebrates, exploit the largest number of communication channels. These two volumes explore how fishes use hearing and vision, as well as the vibrational, electric and chemical modalities in their interactions with one another.
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Sound Communication in Fishes

2015
1 Fish sounds and mate choice M. Clara P. Amorim, Raquel O. Vasconcelos and Paulo J. Fonseca 2 Comparative neurobiology of sound production in fishes Andrew H. Bass, Boris P. Chagnaud and Ni Feng 3 Mechanisms of fish sound production Michael L. Fine and Eric Parmentier 4 Ontogenetic development of sound communication in fishes ...
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