Results 71 to 80 of about 2,528 (204)

Incidental catches of pelagic megafauna by the EU pelagic fleet in the Mauritanian exclusive economic zone during the year 2001 : results extracted from the scientific observer program [PDF]

open access: yes, 2003
The joint project between the Netherlands Institute for Fisheries Research (RIVO) and the Mauritanian Institute for Oceanography and Fisheries Research (IMROP) has been initiated in 1998 in order to strengthen Mauritania’s capacity for research on stocks
Hofstede, R., ter
core   +1 more source

Scaling of bite force corresponds with ontogenetic niche shifts in coastal elasmobranchs

open access: yesFrontiers in Marine Science
IntroductionPredators, such as sharks, play important ecological roles in coastal ecosystems when abundant and these roles change over ontogeny. However, these shifts in ecological role are often not evaluated in light of feeding performance.
Joshua A. Cullen   +3 more
doaj   +1 more source

Defining Sex-Specific Habitat Suitability for a Northern Gulf of Mexico Shark Assemblage

open access: yesFrontiers in Marine Science, 2020
Understanding the factors that influence species’ distributions is crucial for implementing effective management and conservation practices, yet difficult for highly vagile species like sharks.
J. M. Drymon   +9 more
doaj   +1 more source

Nursery Resource Use Dynamics in Great Hammerheads (Sphyrna mokarran) Across Ontogeny

open access: yesEcology and Evolution, Volume 15, Issue 6, June 2025.
The ecological trade‐offs required by nursery dependence are poorly understood. Using multi‐tissue stable isotope analysis, this research provides evidence of constrained resource use in juvenile great hammerheads (Sphyrna mokarran) associated with year‐round dependence on the Biscayne Bay nursery during their first two years of life.
John F. Hlavin, Catherine C. Macdonald
wiley   +1 more source

Trophic organization and predator prey interactions among commercially exploited demersal finfishes in the coastal waters of the Southeastern Arabian Sea [PDF]

open access: yes, 2010
Trophic interactions in commercially exploited demersal finfishes in the Southeastern Arabian Sea of India were studied to understand trophic organization with emphasis on ontogenic diet shifts within the marine food ...
Abdurahiman, K P   +3 more
core  

Identification and phylogenetic inferences on stocks of sharks affected by the fishing industry off the Northern coast of Brazil [PDF]

open access: yes, 2009
The ongoing decline in abundance and diversity of shark stocks, primarily due to uncontrolled fishery exploitation, is a worldwide problem. An additional problem for the development of conservation and management programmes is the identification of ...
ROCHA, Tainá Carreira da   +5 more
core   +1 more source

The reproductive biology of the sandbar shark, Carcharhinus plumbeus(Chondrichthyes: Carcharhinidae), from the Gulf of Gabès (southern Tunisia, central Mediterranean) [PDF]

open access: yes, 2005
The sandbar shark, Carcharhinus plumbeus, is commonly captured in the Gulf of Gabès (southern Tunisia). Of 932 specimens collected from January 2001 to May 2004, the smallest mature male was 1545 mm total length and the largest male was 1935 mm.
Abderrahman Bouaïumln   +4 more
core   +1 more source

Spatial patterns of the epipelagic species caught incidentally in the tuna fishery on floating objects, in the eastern Pacific Ocean

open access: yesCiencias Marinas, 2001
The spatial pattern of the fauna associated with floating objects in the eastern tropical Pacific (ETP) was analyzed. Different presence indexes for the groups of species caught incidentally in log sets were estimated, using information from the Inter ...
R Solana-Sansores
doaj   +1 more source

Closing the air gap: the use of drones for studying wildlife ecophysiology

open access: yesBiological Reviews, Volume 100, Issue 3, Page 1206-1228, June 2025.
ABSTRACT Techniques for non‐invasive sampling of ecophysiological data in wild animals have been developed in response to challenges associated with studying captive animals or using invasive methods. Of these, drones, also known as Unoccupied Aerial Vehicles (UAVs), and their associated sensors, have emerged as a promising tool in the ecophysiology ...
Adam Yaney‐Keller   +3 more
wiley   +1 more source

Hydrodynamic aspects of shark scales [PDF]

open access: yes
Ridge morphometrices on placoid scales from 12 galeoid shark species were examined in order to evaluate their potential value for frictional drag reduction.
Musick, J. A., Raschi, W. G.
core   +1 more source

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