1 Wildlife Biologist, Institute of Arctic Biology, University of Alaska, Fairbanks, AK 99705 2 Wildlife Biologist, U.S. Fish and Wildlife Service, U.S. Department of Interior, 2800 Cottage Way, Room E1803, Sacramento, CA 95825 Abstract: Evidence of breeding and natal dispersal in alcids is typically provided by the resightings of banded birds, the establishment of new colonies, and/or evidence ...

As yet, cooperative breeding has been described only for some fish species. However, evidence is accumulating that it is widespread among Lake Tanganyika cichlids. We studied the cooperative breeding system of the substrate breeding cichlid Neolamprologus savoryi. Breeding groups typically consisted of a large breeding male with one to four breeding females and three to 33 helpers (mean group s...

This work provides information on Mugilidae fish reproduction in Grand-Lahou lagoon. From September 2009 to August 2011, for each specimen sampled, the total length cm, mass and eviscerated g, gonads cg, sex maturity stages were recorded. Parameters studied size at first sexual maturity, period ratio. The is reached between 16.1 cm 21.0 four of five species 41.6 Mugil cephalus females. Liza dum...

cobitis faridpaki cobitis faridpaki (mousavi-sabet, vasil'eva, vatandoust and vasil'ev, 2011) is found in streams of the siahrud river in the southeastern caspian sea basin, and this is the first report on reproductive parameters of the newly described endemic loach. reproductive conditions are key parameters of fish populations, and their assessment is very important for endemic fishes. to stu...

Sharks are a globally threatened group of marine fishes that often breed in their natal region of origin. There has even been speculation that female sharks return to their exact birthplace to breed ('natal philopatry'), which would have important conservation implications. Genetic profiling of lemon sharks (Negaprion brevirostris) from 20 consecutive cohorts (1993-2012) at Bimini, Bahamas, sho...

This review briefly highlights previous studies on the gonadotropin-releasing hormone (GnRH) and its approaches to improving fish reproduction in aquaculture industry. Reproductive system dysfunction of captive is main problem that has be treated depending compatibility species. caused by non-synchronized maturation female male broodstock, low quality broodstock. As shown studies, induced breed...

Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, Guangdong, China, Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, Guangdong, China, Department of Veterinary Microbiolo...

APPLICATION OF ARTIFICIAL NEURAL NETWORKS IN CONTROLLED DRUG DELIVERY SYSTEMS Mohammad Rafieniaa; Mahmood Amirib; Mohsen Janmalekic; Alireza Sadeghiand a Medical Physics and BioMedical Engineering Department, School of Medicine, Biosensor Research Center, Isfahan University of Medical Sciences, Isfahan, Iran b Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermansha...

The article deals with the issue around list of Osman's Quran (Mushaf ʻUthman) in history Golden Horde. On basis information from medieval Arabic sources, it is proved that one copies was presented to Horde ruler Berke by Mamluk Sultan Egypt Baybars as a sign friendship and respect for fact Khan became Muslim spread traditions Islam territory this mysterious, many scientists religious figures t...