The sero-prevalence of Toxoplasma gondii in British marine mammals
Serum samples from 101 stranded or bycatch cetaceans from British waters were screened for Toxoplasma gondii-specific antibodies using the Sabin Feldman Dye Test.
Dan Forman +3 more
doaj +1 more source
Revision of the types of species of Alloxysta described by Cameron and Fergusson (Hymenoptera: Figitidae: Charipinae) and deposited in the Natural History Museum (London), including a key to the fauna of Great Britain [PDF]
Type material of the species of Alloxysta described by Cameron and Fergusson and deposited in the Natural History Museum of London has been revised. Seven species are considered valid: Alloxysta abdera Fergusson, 1986, A.
Ferrer-Suay, Mar +3 more
core +3 more sources
Effect of Leading Edge Protuberance on Thrust Production of a Dynamically Pitching Aerofoil [PDF]
The paper presents a computational analysis of the characteristics of a NACA 634-021 aerofoil modified by incorporating sinusoidal leading-edge protuberances at Re = 14,000.
Benaissa, M. +3 more
core +2 more sources
Structure and Dynamics of Humpback Whales Competitive Groups in Ecuador [PDF]
We assessed the social structure and behavior of humpback whale (Megaptera novaeangliae) competitive groups off Ecuador between July and August 2010. During this time we followed 185 whales in 22 competitive groups for 41.45 hr.
Fernando Félix, Johana Novillo
doaj +1 more source
Direct numerical simulations of the flow around wings with spanwise waviness at a very low Reynolds number [PDF]
Inspired by the pectoral flippers of the humpback whale, the use of spanwise waviness in the leading edge has been considered in the literature as a possible way of improving the aerodynamic performance of wings.
Meneghini, JR, Serson, D, Sherwin, SJ
core +1 more source
The enigmatic whale: the North Atlantic humpback
We know more about the North Atlantic humpback whale (Megaptera novaeangliae) than we do for virtually any other cetacean, yet attempts to use this information to describe the status of the populations in this ocean basin have not proven satisfactory ...
Tim D Smith, Daniel G Pike
doaj +1 more source
Apistogramma megaptera (Perciformes: Cichlidae), una nueva especie para la cuenca del Orinoco
Se describe una nueva especie, Apistogramma megaptera (Perciformes: Cichlidae), distribuida en la cuenca alta del Orinoco (ríos Inírida, Atabapo y Mavaca) de Venezuela y Colombia.
Lina M. Mesa Salazar, Carlos A. Lasso
doaj +3 more sources
Ecotourism focused on whales and dolphins has become a popular activity and an important source of revenue for many countries. Whale watching is vital to supporting conservation efforts and provides numerous benefits to local communities including ...
Arielle M. Amrein +9 more
doaj +1 more source
Perceptually Motivated Wavelet Packet Transform for Bioacoustic Signal Enhancement [PDF]
A significant and often unavoidable problem in bioacoustic signal processing is the presence of background noise due to an adverse recording environment. This paper proposes a new bioacoustic signal enhancement technique which can be used on a wide range
Cohen I. +8 more
core +2 more sources
Se registran tres especies de crustáceos ectoparásitos y epibiontes en dos ballenatos y cuatro adultos de ballena jorobada (Megaptera novaeangliae) que visitaron el PNN Gorgona y Bahía Málaga en el Pacífico colombiano, en la temporada reproductiva del ...
Isabel Cristina Avila +2 more
doaj +1 more source

