Results 211 to 220 of about 511 (236)

Interactions Between Leatherback Turtles and Peruvian Artisanal Fisheries

Chelonian Conservation and Biology, 2007
ABSTRACT From 1985 to 1999, data were gathered opportunistically on the bycatch of 33 leatherback turtles in coastal Peru, and from 2000 to 2003, a dockside observer program provided data on an additional 133 leatherbacks caught in the coastal gillnet and longline fisheries targeting mahi mahi, sharks, and rays.
Joanna Alfaro-Shigueto, Peter H. Dutton, Marie-françoise Van Bressem, Jeffrey Mangel   +3 more
openaire   +1 more source

An illuminating idea to reduce bycatch in the Peruvian small-scale gillnet fishery

Biological Conservation, 2020
Abstract Found in the coastal waters of all continents, gillnets are the largest component of small-scale fisheries for many countries. Numerous studies show that these fisheries often have high bycatch rates of threatened marine species such as sea turtles, small cetaceans and seabirds, resulting in possible population declines of these non-target ...
Alessandra Bielli, J. Alfaro-Shigueto, P.D. Doherty, B.J. Godley, C. Ortiz, A. Pasara, J.H. Wang, J.C. Mangel   +7 more
openaire   +1 more source

Impact of El Niño events on pelagic fisheries in Peruvian waters

Deep Sea Research Part II: Topical Studies in Oceanography, 2004
Abstract Using data from stock assesment surveys on pelagic resources during El Nino events of 1972/73, 1982/83, 1997/98, we analyze biological changes on pelagic ecosystems and pelagic fisheries during different stages of development of El Nino phenomenon: emergence, full, final and post-Nino.
Miguel Ñiquen, Marilú Bouchon
openaire   +1 more source

Biology and fisheries of Peruvian hake (M. gayi peruanus)

1995
The Humboldt Current ecosystem off western South America is a typical eastern boundary current upwelling system which is characterized by high levels of organic production. It is dominated by four pelagic schooling fish species: anchovy (Engraulis ringens), sardine (Sardinops sagax sagax), horse mackerel (Trachurus murphyi) and mackerel (Scomber ...
Marco Espino, Raúl Castillo, Flor Fernández   +2 more
openaire   +1 more source

Geoarchaeological evidence for multidecadal natural climatic variability and ancient Peruvian fisheries

Quaternary Research, 2004
Understanding the influence of natural climatic variability on modern fisheries is complicated by over a century of industrial fishing. Archaeological data provide unique opportunities for assessing precolonial and preindustrial fisheries. Records show that anchoveta-vs sardine-dominated fisheries correlate with 20th-century climate change in the ...
Daniel H. Sandweiss, Kirk A. Maasch, Fei Chai, C.Fred T. Andrus, Elizabeth J. Reitz   +4 more
openaire   +1 more source

Fisheries in upwelling regions — with special reference to peruvian waters

Geoforum, 1972
Abstract The anchovy population that is the basis of the Peru fishery, the world's largest, is a phytoplankton feeding species, supported by an upwelling based ecosystem. The fish is very short-lived and grows rapidly — both criteria for high turnover rate — high yield fisheries.
openaire   +1 more source

Climate variability and the Peruvian scallop fishery: the role of formal institutions in resilience building

Climatic Change, 2009
Peru experiences recurrent ENSO (El Nino Southern Oscillation) events during which the Peruvian bay scallop (Argopecten purpuratus) undergoes substantial changes in its stock size. In the North of the country strong warm ENSO events are synonymous with floods and river discharges that negatively affect scallop biomass, while in the South increased sea ...
Marie-Caroline Badjeck, Jaime Mendo, Matthias Wolff, Hellmuth Lange   +3 more
openaire   +1 more source

Small cetacean captures in Peruvian artisanal fisheries: High despite protective legislation

Biological Conservation, 2010
We detail the first direct, at sea monitoring of small cetacean interactions with Peruvian artisanal drift gillnet and longline fisheries. A total of 253 small cetaceans were captured during 66 monitored fishing trips (Gillnet: 46 trips; Longline: 20 trips) from the port of Salaverry, northern Peru (8 o 14 0 S, 78 o 59 0 W) from March 2005 to July 2007.
Jeffrey C. Mangel, Joanna Alfaro-Shigueto, Koen Van Waerebeek, Celia Cáceres, Stuart Bearhop, Matthew J. Witt, Brendan J. Godley   +6 more
openaire   +1 more source

Stock Assessment of the Peruvian Anchovy (Engraulis ringens) and Management of the Fishery

Journal of the Fisheries Research Board of Canada, 1973
The upwelling of cool nutrient-rich water makes the area off Peru one of the most productivein the world. The first major use of this resource was the production of guano. In 1957 the fishery for anchoveta (Engraulis ringens) for reduction to meal and oil began on a significant scale.
L. K. Boerema, J. A. Gulland
openaire   +1 more source

Characterization of a Peruvian coastal fishery targeting the Pacific guitarfish Pseudobatos planiceps

Journal of Fish Biology
AbstractFrom December 2012 to June 2014, 796 Pacific guitarfish were caught in 183 fishing sets in northern Peru. Catch occurred in 86.3% of sets. Most individuals caught were mature with a bias toward males. The mean total length for females and males was 83.4 cm, and 91.1 cm, respectively. The capture per unit effort (CPUE) was 12.6 ± 3.4 guitarfish (
Astrid Jimenez, Sergio Pingo, Adriana González‐Pestana, Joanna Alfaro‐Shigueto, Jeffrey C. Mangel   +4 more
openaire   +2 more sources