Results 131 to 140 of about 36,316 (310)

Stock assessment of Lates niloticus (L.), Oreochromis niloticus (L.) and Rastrineobola argentea (Pellegrin) using fisheries-dependent data from Tanzania waters of Lake Victoria [PDF]

open access: yes, 1999
Three commercially important fish species, Lates niloticus (L.), Rastrineobola argentea (Pellegrin) and Oreochromis niloticus (L.) that are fished by artisanal fishermen of Lake Victoria, Tanzania part, were studied in Kagera, Mwanza and Mara beaches ...
Nsinda, P.E.
core  

REPRESENTING POLLUTION AT THE AGRARIAN–URBAN FRONTIER: Participatory Documentary Film‐Making in Bar Elias, Lebanon

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract The Beqaa Valley in Lebanon has become increasingly polluted, and residents are attributing illness to improper waste disposal and dumping. This article explores local epistemologies of pollution’s causes and effects in three films, which were researched and produced by local residents of Bar Elias, a small town in the Beqaa, which has rapidly
Hannah Sender   +2 more
wiley   +1 more source

Problems and prospects of community-based resource management approach: an experience with the implementation of the ban on beach seines on Lake Kainji [PDF]

open access: yes, 2003
Community Based Resource Management (CBRM) understood as an approach emphasizes a community's capability, responsibility and accountability with regards to managing resources.
Alamu, S.O., Okomoda, J.K.
core  

Modeling Skin Mark Temporal Variations to Estimate the Sex of Delphinids with Low Sexual Dimorphism: Implications for Management and Conservation

open access: yesIntegrative Zoology, EarlyView.
This work aimed to apply the principles of skin mark analysis to a cetacean species to build a sex‐discrimination model exclusively based on photographic material. Relevant differences between sexes emerged in markings, with males presenting more social, aggression‐related, and fishing‐related marks overall, and a stronger tendency of mark accumulation
Alice Turchi   +7 more
wiley   +1 more source

COPIS: A robust and versatile robotic imaging system for the 3D digitization of natural history specimens with photogrammetry

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Ecologists and evolutionary biologists are increasingly turning to 3D models to use in scientific research. Natural history museums are one of the primary sources for specimens used as 3D models, and efforts are underway to digitize their collections using methods like photogrammetry.
Jeremy D. Pustilnik, Genevieve S. Rios
wiley   +1 more source

An analysis of poverty and aquatic resources use - focusing especially on the livelihoods of the poor - in Cambodia [PDF]

open access: yes, 2000
The main objectives of this report, which is based on the current literature and key informant interviews, is to assess and analyse the nature and distribution of poverty and aquatic resources use, focusing especially on the livelihoods of the poor.

core  

Latinos mobilizing beyond threats: The role of fear and hope in issue activism

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract Interest groups intent on spurring political participation often highlight potential threats to galvanize audiences into action. However, while loss aversion is typically seen as a strong motivator, it is important not to neglect the motivational effect of hope and reward‐seeking behavior as people navigate their political landscape.
Vanessa Cruz Nichols
wiley   +1 more source

Achumawi and Atsugewi Fishing Gear

open access: yes, 1990
During a collecting trip for the Field Columbian Museum of Chicago in 1902, John W. Hudson acquired gear used by the Achumawi and Atsugewi for fishing. In 1986-87 the Pit River Tribal Council and the California Department of Parks and Recreation collaborated to protect the unique stone fish traps or weirs at Ahjumawi Lava Springs State Park in ...
openaire   +1 more source

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