Results 41 to 50 of about 22,009 (168)

Implicancias de la Variabilidad Físico-Biológica y la Aplicación de Normas Legislativas Sobre el Recurso Pesquero en la Zona Costera del Sur de la Provincia de Buenos Aires, Argentina [PDF]

open access: yesAnuário do Instituto de Geociências, 2017
Las condiciones hidrográficas y climatológicas de las aguas costeras son el principal factor a tener en cuenta cuando se analiza la abundancia de las especies ictícolas.
Ana L. Delgado   +3 more
doaj   +1 more source

Shedding light on the parasite communities and diet of the deep‐sea shark Deania profundorum (Smith & Radcliffe, 1912) (Squaliform: Centrophoridae) from the Avilés Canyon (southern Bay of Biscay)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Deep‐sea elasmobranchs are less resilient to the increasing scale of anthropogenic impacts such as fisheries, owing to their life‐history traits. The necessity for proper management measures is hampered by the scant knowledge on these taxa and their biology. Here we provide the first comprehensive insight into the parasite infracommunities and
Wolf Isbert   +5 more
wiley   +1 more source

Bibliografía sobre organismos, ambientes y procesos marinos y atmosféricos en Bahía Culebra, Pacífico norte, Guanacaste, Costa Rica (1922-2012)

open access: yesRevista de Biología Tropical, 2012
Bahía Culebra se locoaliza en la parte norte de la costa Pacífica de Costa Rica. Es una región de afloramiento estacional, rica en ambientes y organismos marinos, y además, la zona de mayor desarrollo turístico del país. En este trabajo compilo y analizo
Jorge Cortés
doaj  

Tidal dynamics on the North Patagonian Argentinean Gulfs [PDF]

open access: yes, 2017
Semidiurnal (M2, S2, N2 and K2), diurnal (K1,O1 and P1) and quarter-diurnal (M4, MN4 and MS4) barotropic tides over the North Patagonian Gulfs of Argentina: San Matías, (SMG), Nuevo (NG) and San José (SJG) are examined using a regional numerical model ...
Palma, Elbio Daniel   +1 more
core   +1 more source

Age and growth of the endemic groovebelly stingray (Dasyatis hypostigma), a heavily exploited batoid in the Brazilian Meridional Margin (21–34° S)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Life‐history data are often lacking for exploited elasmobranchs, jeopardizing proper management and conservation measures for this vulnerable group. Herein, we provided age and growth estimates for the groovebelly stingray (Dasyatis hypostigma), a medium‐sized, heavily exploited batoid endemic to the southwestern Atlantic Ocean.
Giovanni Arlan Torres   +5 more
wiley   +1 more source

Preliminary data on polycyclic aromatic hydrocarbons (PAHs) in wild mussels from the Cantabrian coast (N Spain) following the Prestige oil spill

open access: yesCiencias Marinas, 2006
Concentrations of parent polycyclic aromatic hydrocarbons (PAHs) were studied in wild mussels (Mytilus galloprovincialis) from the Cantabrian coast of Spain after the oil spill produced by the tanker Prestige.
JA Soriano-Sanz   +4 more
doaj   +1 more source

Microbial influence on the formation and subsequent changes of vertebrate tracks: field experiments on present‐day coastal sediments

open access: yesSedimentology, EarlyView.
ABSTRACT The presence of microbial mats is often invoked to explain the good preservation of vertebrate tracks, because they can cover and biostabilize such structures. However, microbial influence on the sediment properties when the track is made and on the track characteristics has not been so thoroughly analysed.
Isabel Emma Quijada   +4 more
wiley   +1 more source

Deep-water fishing tactics of the Spanish fleet in the Northeast Atlantic. Seasonal and spatial distribution

open access: yesScientia Marina, 2011
The classification and identification of all the Spanish fishing activity targeting deep-sea species was conducted using a non-hierarchical classification technique designed for large matrices (CLARA).
Antonio Punzón   +5 more
doaj   +1 more source

The distribution and ecological effects of the introduced Pacific oyster Crassostrea gigas (Thunberg, 1793) in Northern Patagonia [PDF]

open access: yes, 2004
In this work we studied the actual coverage, distribution patterns and ecologic effects of the introduced oyster Crassostrea gigas 20 y after their introduction to the Northern Argentinean Patagonia (Bahia Anegada; 39º50´S to 40º40´S and 61º59 to 62º28 W)
Alberti, Juan   +8 more
core  

Sabellaria nanella (Sabellariidae): from solitary subtidal to intertidal reef building worm at Monte Hermoso, Argentina (39°S, south­west Atlantic) [PDF]

open access: yes, 2013
This contribution reports the first record of intertidal reefs built by the sabellariid worm Sabellaria nanella in the lower intertidal at Monte Hermoso beach, Argentina (39ºS). All previous records of S.
Bremec, Claudia Silvia   +4 more
core   +2 more sources

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