Results 31 to 40 of about 14,738 (159)

Abundancia y talla de esponjas comerciales (Spongiidae) en el Golfo de Batabanó, Cuba

open access: yesRevista de Investigaciones Marinas, 2020
Las fluctuaciones de las capturas de esponja en Cuba evidencian disminuciones que obligan a mantener un enfoque precautorio y velar por el estricto cumplimiento de las medidas regulatorias.
Alexander Lopeztegui-Castillo   +2 more
doaj  

Evaluación del crecimiento del pejerrey Odontesthes bonariensis y su relacióncon la talla mínima de captura utilizada en las pesquerías

open access: yesRevista Peruana de Biología
El pejerrey Odontesthes bonariensis (Actinopterygii; Atherinopsidae) es un recurso pesquero relevante en varios países sudamericanos. En Argentina, su pesca permite la obtención de un importante volumen de proteína en numerosos ambientes acuáticos.
Miguel Mancini   +5 more
doaj   +1 more source

¿La experiencia es la única forma de mejorar el discurso público en la ciencia?

open access: yesNova Scientia, 2015
Introducción: Cualquier practicante de ciencia está frecuentemente expuesto al discurso público (DP): conferencias, congresos, simposios, talleres, etc. Por ello, es imprescindible saber comunicar las ideas con claridad y contundencia en una presentación
Pablo del Monte-Luna   +2 more
doaj   +1 more source

The food of the larvae of the northern anchovy Engraulis mordax [PDF]

open access: yes, 1959
ENGLISH: Hitherto the only investigation dealing with the food and feeding of the larvae of the northern anchovy, Engraulis mordax Girard, was that of Arthur (1956).
Berner, Jr., Leo
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Vulnerability of marine megafauna to global at‐sea anthropogenic threats

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened ...
Michelle VanCompernolle   +309 more
wiley   +1 more source

Stomach flushing technique applied to quantify microplastics in Crocodilians

open access: yesMethodsX, 2019
The impact of microplastics on wildlife is a recent problem for which methods to evaluate exposure still need development. Being able to identify and quantify microplastics (particles < 5 mm) in the gastric contents of live crocodiles allows us to ...
Mauricio Gonzalez-Jauregui   +5 more
doaj   +1 more source

Extent of threats to marine fish from the online aquarium trade in the United States

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
The global marine aquarium hobby is a multibillion‐dollar industry, largely driven by demand from the United States. Much of this trade occurs online. We web scraped 4 major US‐based e‐commerce platforms selling marine aquarium fish to determine the retail price and source (wild capture, aquaculture, or both) of 13 families of ray‐finned marine fish ...
Bing Lin   +6 more
wiley   +1 more source

Tiburones: El Estado de la ciencia [PDF]

open access: yes, 2010
Debido a sus características biológicas, los tiburones son particularmente vulnerables a la sobrepesca: crecen lento, maduran sexualmente a una edad tardía y producen pocas crías. Por ello, un gran número de sus especies se encuentran o bien amenazados o
Alexia C. Morgan
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Latitudinal changes of euphausiid assemblages related to the morphological variability of the sound scattering layer along Baja California, October 1994

open access: yesScientia Marina, 1999
Latitudinal changes in the euphausiid assemblages were compared to the morphological structure (size and compactness) of the sound scattering layer (SSL) during ten 24-h surveys made in October 1994 along the west coast of Baja California, México. During
J. Gómez-Gutiérrez   +3 more
doaj   +1 more source

Report of the Inter-American Tropical Tuna Commission for the year 1955 [PDF]

open access: yes, 1956
ENGLISH: This is the fifth year of investigations, by the Inter-American Tropical Tuna Commission, of the fisheries for tunas and tuna-bait fishes in the Eastern Pacific Ocean adjacent to the shores of the Americas.

core  

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