Results 61 to 70 of about 20,797 (178)
Conservation benefits of a large marine protected area network that spans multiple ecosystems
Abstract Marine protected areas (MPAs) are widely implemented tools for long‐term ocean conservation and resource management. Assessments of MPA performance have largely focused on specific ecosystems individually and have rarely evaluated performance across multiple ecosystems either in an individual MPA or across an MPA network.
Joshua G. Smith+23 more
wiley +1 more source
Swimming Behavior of the Nudibranch Melibe leonina [PDF]
Swimming in the nudibranch Melibe leonina consists of five types of movements that occur in the following sequence: (1) withdrawal, (2) lateral flattening, (3) a series of lateral flexions, (4) unrolling and swinging, and (5) termination.
Lawrence, Kaddee A.+1 more
core +1 more source
Many fishes can change their sex. The remarkable example, Lubricogobius exiguus, is a goby that can undergo bidirectional sex change with hermaphroditic gonads, containing both developed ovaries and testes (simultaneously hermaphroditic phase gonad). Based on field observations, we demonstrate that the goby experiences frequent social changes, such as ...
Takumi Oyama+2 more
wiley +1 more source
Effects of human chorionic gonadotropin (HCG), toad and Clarias pituitary hormogenates on spawning in the catfish: Clarias Lazera (C. and V.) and Clarias anguillaris (Linne) [PDF]
Experiment on induced spawning of Clarias lazera and C. anguillaris using human chorionic gonadotropin (HCG) freshly prepared toad and Clarias pituitary hormogenates were carried out. Clarias pituitary hormogenates induced spawning in C.
Nwoko, C.U.
core
Familiarity preferences in zebrafish (Danio rerio) depend on shoal proximity
Abstract Individuals of many species prefer to associate with familiar conspecifics from their established social group over unfamiliar conspecifics. Such familiarity preferences are thought to be adaptive and have been documented widely in many social fishes.
William T. Swaney+3 more
wiley +1 more source
Penelitian ini bertujuan untuk mengeksplorasi pengaruh aplikasi probiotik Bacillus spp. terhadap pembentukan biofilm dan kualitas air pada media budidaya udang vaname (Litopenaeus vannamei).
Khibar Syiar Moehammad+2 more
doaj +1 more source
Life History Aspects of \u3ci\u3eAnthopotamus Verticis\u3c/i\u3e (Ephemeroptera: Potamanthidae) [PDF]
The study of the larval development and life cycle of a population of the mayfly Anthopotamus verticis from the Tippecanoe River, Indiana was based on monthly and weekly sampling in 1990 and 1991.
Bae, Y. J, McCafferty, W. P
core +2 more sources
Abstract This study investigates the growth and calcification of the appendicular skeleton in Raja asterias (Delaroche, 1809), a member of the Batoidea, to explore the relationship between histomorphology and the mechanics of batoid locomotion within the water column. Although much prior research has focused on the “tessellated pattern” in these fishes,
Ugo E. Pazzaglia+6 more
wiley +1 more source
Settlement and post-larvae behaviour of Mytitus galtoprovincialis: field and laboratory experiments [PDF]
11 pages, 6 figures, 3 tables.Field sampling carried out in the Rfa de Vigo (NW Spain) from 1991 to 1993 showed that Mytilus galloprovincialis settle directly from the plankton onto substrates exposed to various environmental conditions: exposed rocky ...
Cáceres-Martínez, J.+2 more
core +1 more source
Abstract Research on wild fishes has tended to overlook the role of abiotic factors in shaping behaviours associated with boldness and exploration. This oversight could exist because small‐scale variation in the abiotic environment might seem unlikely to influence such behaviours. We challenged this assumption through research in the Trinidadian guppy (
Alexis M. Heckley+6 more
wiley +1 more source