Results 91 to 100 of about 58,795 (312)
Addressing anthropogenic threats compromising the persistence of tropical marine ecosystems requires a comprehensive understanding of the fundamental ecological functions organisms fulfill in these realms.
Erika Gress +3 more
doaj +1 more source
Informe de la Comisión Interamericana del Atún Tropical correspondiente al año 1999 [PDF]
ENGLISH: The Inter-American Tropical Tuna Commission (IATTC) operates under the authority and direction of a convention originally entered into by Costa Rica and the United States.
core
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia +9 more
wiley +1 more source
El género Hyphessobrycon incluye dieciocho especies reportadas para Colombia de las cuales 13 son miembros del grupo heterorhabdus; con las mismas, se realizó un análisis morfogeométrico por medio del Método de Cerchas (Box Truss) y Láminas Delgadas (TPS)
Carlos A. García-Alzate +4 more
doaj
Informe de la Comisión Interamericana del Atún Tropical correspondiente al año 1998 [PDF]
ENGLISH: The Inter-American Tropical Tuna Commission (IATTC) operates under the authority and direction of a convention originally entered into by Costa Rica and the United States.
core
This work brings new information on the sexual characteristics of the crocodile shark (Pseudocarcharias kamoharai) exploring the pelvic fin musculature, as well as the siphon sac and the musculature and skeleton of the clasper. Our paper is the first to point out clearly the sexual dimorphism related exclusively to the pelvic fin musculature in males ...
Laura F. Mianutti +2 more
wiley +1 more source
Diversity across organisational scale emerges through dispersal ability and speciation dynamics in tropical fish. [PDF]
Keggin T +6 more
europepmc +1 more source
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox +8 more
wiley +1 more source
El género Hyphessobrycon es uno de los más numerosos y morfológicamente complejos de la familia Characidae, incluye 122 especies válidas, de las cuales 17 están en Venezuela.
Carlos A García-Alzate +2 more
doaj
The impact of climatic variations on the aquaculture yield of tropical mountainous regions is an understudied phenomenon. These regions are subdivided into microclimatic zones that range from polar to tropical climate types.
Athanasius Ssekyanzi +3 more
doaj +1 more source

