Results 31 to 40 of about 554 (146)
Environmental Drivers of Jumbo Squid During Fishery Collapse in the Gulf of California (2019–2024)
ABSTRACT The jumbo squid (Dosidicus gigas) is a cephalopod endemic to the eastern Pacific with significant ecological and economic importance. Its exploitation in the Gulf of California (GC) peaked in the 1990s, with catches exceeding 100,000 tons, but collapsed in 2009 and virtually disappeared by 2015, largely due to environmental changes and ...
Mario Vásquez‐Ortiz +5 more
wiley +1 more source
Phytoplankton Communities’ Seasonal Fluctuation in Two Neighboring Tropical High-Mountain Lakes
High-mountain lakes (HMLs) are remote, extreme, and sensitive ecosystems recognized as sentinels of global change. Lakes El Sol and La Luna are very close to each other inside the crater of the Nevado de Toluca volcano, but they differ morphometrically ...
Rocío Fernández +4 more
doaj +1 more source
ABSTRACT Microplastic (MP) pollution represents a growing environmental challenge, especially in tropical and subtropical coastal regions of the Global South, where methodological fragmentation, funding discontinuity, and dependence on external analytical infrastructure limit the production of comparable data and the formulation of evidence‐based ...
Guilherme Malafaia +1 more
wiley +1 more source
Objective. To determine the level of environmental impact caused by an intensive aquaculture season of rainbow trout (Onchorhynchus mykiss) in floating cage systems in water nutrients and benthic macroinvertebrates in Lake Guamuez. Materials and methods.
González Legarda, Edgar Andrés +4 more
core +1 more source
ABSTRACT The Atlantic pygmy devil ray (Mobula hypostoma) is an endangered mobulid species whose conservation is hindered by taxonomic confusion and significant gaps in ecological and life history knowledge. Here, we present an integrative study that clarifies the species' taxonomic status, updates its distribution and synthesizes new and existing data ...
Atlantine Boggio‐Pasqua +35 more
wiley +1 more source
Whale sharks (Rhincodon typus) are found circumglobally in tropical, subtropical, and warm temperate waters, and their known seasonal aggregations and migratory movements are influenced by factors such as ocean currents, thermobiological systems, and ...
Hector M. Guzman +4 more
doaj +1 more source
Abstract Proxy records of seawater radiocarbon (14C/C) provide strong constraints on how changes in ocean ventilation contributed to the increase in atmospheric CO2 during the termination of the last ice age (≈18,000‐to‐12,000 years ago). One outstanding problem, however, is the existence of anomalously low deglacial benthic foraminiferal 14C/C in the ...
Patrick A. Rafter +14 more
wiley +1 more source
Estado del arte del conocimiento sobre perifiton en Colombia
El perifiton es un componente de las comunidades bióticas acuáticas, su estudio es importante tanto desde la perspectiva ecológica, para comprender el funcionamiento de los ecosistemas acuáticos, como desde el punto de vista ambiental, pues su ...
Yimmy Montoya Moreno, Nestor Aguirre
doaj +2 more sources
Se evaluaron algunas características morfométricas básicas en la microcuenca de la quebrada Los Andes en el departamento de Antioquia (Colombia).
Yimmy Montoya Moreno +1 more
doaj
Crustaceans in Phragmatopoma sp. (Polychaeta: Sabellariidae) intertidal reefs, Pacific, Costa Rica
Introduction: Annelid polychaete worms of the family Sabellariidae build reefs by cementing together sand grains. These reefs increase local habitat heterogeneity and species diversity.
José A. Vargas +2 more
doaj +1 more source

