Results 31 to 40 of about 89,120 (294)
Scientia Marina, 2006 We investigated the relationships, at a local level, between fish condition and environmental variables in Gobius cobitis juveniles. The relationships between 14 ecological variables of shallow areas of the Mar Menor coastal lagoon (water temperature ...
David Verdiell-Cubedo +2 more
doaj +1 more source
Temporal stability of an endemic Mexican treefrog [PDF]
PeerJ, 2015 The demographic characteristics of an amphibian population fluctuate independently over time, mainly in response to the temporal variation of environmental factors, especially precipitation and temperature.
Griselda Cruz-Ruiz +3 more
doaj +2 more sources
Ciencias Marinas, 1992 Samplings with plankton net, cast net and otter trawl were made every two weeks to estimate the distribution and abundance of Penaeus shrimp postlarvae and juveniles in Kino Bay (IX/89-IX/90) and La Cruz coastal lagoon (VII/89-IV/91), Sonora, Mexico ...
JM Grijalva-Chon, RH Barraza-Guardado
doaj +1 more source
Postfledging Survival, Movements, and Dispersal of Ring Ouzels (Turdus torquatus) [PDF]
, 2013 We thank Invercauld Estate for cooperation with access to Glen Clunie. S. Redpath, J. Wilson, and S. Roos provided valuable comments on the manuscript. This study was funded by the Royal Society for the Protection of Birds, Scottish Natural Heritage, and
Eaton M. A. +10 more
core +1 more source
Effects of harvesting methods on sustainability of a bay scallop fishery: dredging uproots seagrass and displaces recruits [PDF]
, 2005 Fishing is widely recognized to have profound effects on estuarine and marine ecosystems (Hammer and Jansson, 1993; Dayton et al., 1995). Intense commercial and recreational harvest of valuable species can result in population collapses of target and ...
Bishop, Melanie J. +3 more
core +3 more sources
Belowground Distribution and Abundance of Botrychium Gametophytes and Juvenile Sporophytes
American Fern Journal, 2002 Abstract A significant portion of the stages of the life history of Botrychium, the gametophyte and juvenile sporophytes, are spent belowground. Surveys were conducted to determine the distribution and abundance of belowground gametophytes, juvenile sporophytes and gemmae of eight species of Botrychium.
Cindy Johnson-Groh +3 more
openaire +2 more sources
Effects of cortisol treatment on the salinity tolerance of Persian sturgeon, Acipenser persicus Juveniles [PDF]
Caspian Journal of Environmental Sciences, 2019 Persian sturgeon, Acipenser persicus juveniles are annually produced and released (2-3g body weight) to the estuaries surrounding the southern parts of the Caspian Sea by hatchery centers.
S.A Shirangi +3 more
doaj +1 more source
Seasonal abundance of small cladocerans in Lake Mangakaware, Waikato, New Zealand [PDF]
, 1999 The seasonal changes in the dynamics and life histories of the Cladocera in Lake Mangakaware, North Island, New Zealand, were studied over 19 months by sampling at weekly or 2-weekly intervals.
Chapman M. A. +19 more
core +2 more sources
Известия ТИНРО, 2022 Annual data on the 1976–2019 year-classes of pink salmon from Iturup Island are presented, as their number on spawning grounds, abundance of wild and hatchery juveniles migrating downstream, and returns of adult fish after the marine period of life.
A. M. Kaev
doaj +1 more source
Avian malaria is absent in juvenile colonial herons (Ardeidae) but not Culex pipiens mosquitoes in the Camargue, Southern France [PDF]
, 2015 Apicomplexan blood parasites Plasmodium and Haemoproteus (together termed “Avian malaria”) and Leucocytozoon are widespread, diverse vector-transmitted blood parasites of birds, and conditions associated with colonial nesting in herons (Ardeidae) and ...
Gauthier-Clerc, Michel +1 more
core +1 more source