Results 21 to 30 of about 4,475 (221)

Abundancia, biomasa y estructura de la ictiofauna demersal del mar Caribe de América Central

Uniciencia, 2019
Se analizaron 96 puntos de muestreo realizados a bordo del B/O Miguel Oliver, desde el 3 de enero hasta el 3 de febrero del 2011. En cada punto se llevaron a cabo faenas de pesca de arrastre utilizando una red Lofoten.
Rosario Benavides-Morera, Fernando Campos-Calderón   +1 more
doaj   +1 more source

Tropicalization of demersal megafauna in the western South Atlantic since 2013

Communications Earth & Environment, 2022
Increases in demersal species with higher temperature preferences in commercial catches landed in Brazil indicate tropicalization of demersal megafauna in the western South Atlantic since 2013, according to species composition and biomass analysis of 29 ...
Jose Angel Alvarez Perez, Rodrigo Sant’Ana   +1 more
doaj   +1 more source

Temporal changes in the dietary niche of sympatric seals provides insight into the role of competition in population declines

Oikos, EarlyView.
Competition theory suggests that interspecific prey competition can result in changes to the dietary niche, but obtaining timeseries of data from sympatric species experiencing temporal variation in competition is challenging. Scotland is an important area for two species of seals, but over the past 20 years, populations of harbour seals Phoca vitulina
Izzy Langley, Philip S. Hammond, Paul M. Thompson, Graham J. Pierce, Lindsay J. Wilson, Ailsa J. Hall, Gordon D. Hastie, Debbie J. F. Russell   +7 more
wiley   +1 more source

Demersal fish in Icelandic waters

, 2021
A sudden increase in population size and distribution around Iceland took place in several species in 2000-2010. What they have in common is that Iceland is placed at the northern border of their geographic range making the susceptible to environmental fluctuations.
openaire   +2 more sources

Rhyming in the cold: first evidence of soniferous fishes in the Southern Ocean

Remote Sensing in Ecology and Conservation, EarlyView.
The acoustic ecology of Southern Ocean fishes remains unknown due to a lack of dedicated acoustic research on the fishes of this ocean. Passive acoustic monitoring data were collected at the South African sub‐Antarctic Prince Edward Islands using an underwater acoustic recorder, and towed underwater Ski‐Monkey cameras were deployed to identify fish ...
Fannie W. Shabangu, Grant van der Heever, Charles von der Meden, Hannah Truter, Stephen J. Lamberth, Ofer Gon   +5 more
wiley   +1 more source

HUBUNGAN TIPE DASAR PERAIRAN DENGAN DISTRIBUSI IKAN DEMERSAL DI PERAIRAN PANGKAJENE SULAWESI SELATAN 2011

Jurnal Teknologi Perikanan dan Kelautan, 2017
Tipe substrat dasar perairan berpengaruh terhadap sebaran jenis ikan demersal. Tipe substrat di Perairan Pangkajene Sulawesi Selatan didominasi oleh pasir berlumpur.
Hidayanto Akbar, Sri Pujiyati, M. Natsir
doaj   +1 more source

Ontogeny of foraging behaviour in an opportunistic gull inhabiting urban marine ecosystems

Wildlife Biology, EarlyView.
Urbanization affects ecosystems by reducing biodiversity and displacing species from native habitats. While some suffer, others, like urban wildlife, adapt through innovative feeding and behaviours that improve their fitness in human‐altered settings. Despite research on wildlife in urban areas, the development of foraging behaviour in urban species is
Joan Navarro, Víctor Martín-Vélez, Joan Giménez, José Antonio Garcia, Pablo Cermeño, Jordi Figuerola, Raül Aymí, Tomás Montalvo   +7 more
wiley   +1 more source

Traditional and Geometric Morphometrics and Invariant Shape Descriptors of Catfish Otoliths in the Yucatán Peninsula: Tools for Species Identification and Individual Size Estimation at Maya Archaeological Sites

Archaeometry, EarlyView.
ABSTRACT This study investigates the use of otolith shape analysis for species identification and size estimation in Ariopsis felis and Bagre marinus, based on 181 modern otoliths obtained from a scientific collection and recent sampling in the coastal regions of Campeche and Yucatán, as well as 39 archaeological otoliths corresponding to the Early ...
Ariana Solis‐Gómez, Jorge Luis Pérez‐Gonzalez, Nayeli Jiménez‐Cano, Maribel Badillo‐Alemán, Alfredo Gallardo‐Torres, Nidiyare Hevia‐Montiel, Daniel Arceo‐Carranza, Xavier Chiappa‐Carrara   +7 more
wiley   +1 more source

Monitoring small‐scale fisheries through participatory, app‐based surveys in the tropical archipelago of São Tomé and Príncipe

Conservation Science and Practice, EarlyView.
Small Island Developing States have limited capacity to monitor Small Scale Fisheries, despite their high dependence on marine resources. Participatory monitoring of Small Scale Fisheries can fill data gaps while integrating resource users into fisheries management.
Guillermo Porriños, Philip D. Doherty, Ana Nuno, Manuel da Graça, Edson dos Santos, Sinaida Espírito Santo, Katy Walker, Albertino Santos, Márcio Guedes, Lodney Nazaré, Tiago Capela Lourenço, Luisa Madruga, Litoney Matos, Berry Mulligan, Mafalda Navas, Rita F. Ramos, Nina da Rocha, Kristian Metcalfe   +17 more
wiley   +1 more source

Does nature shape risk preferences? Evidence from Chile, Norway, and Tanzania

Economic Inquiry, Volume 63, Issue 2, Page 568-590, April 2025.
Abstract Does exposure to a more risky environment affect risk preferences? Going beyond single‐case study evidence, we report results from five surveys conducted in three countries and link this with administrative data to study whether a link between exposure and preferences is detectable and widespread. We find no evidence for endogenous preferences
Florian Diekert, Robbert‐Jan Schaap
wiley   +1 more source