Results 171 to 180 of about 67,643 (303)

Experimentally testing the function of anal fins in the bluefin killifish, Lucania goodei

Journal of Fish Biology, EarlyView.
Abstract Anal fins are thought to affect many functions, including swimming, sperm flow and signalling. However, there are few experimental demonstrations of these functions. We manipulated male anal fins by placing a cut in the fin. We found that cut males had lower fertilization rates than uncut males.
Edie Smelko, Rebecca C. Fuller
wiley   +1 more source

Histological characterisation of gonadal sex differentiation in Malabar red snapper (Lutjanus malabaricus) for aquaculture advancement

Journal of Fish Biology, EarlyView.
Abstract The Malabar red snapper (Lutjanus malabaricus) is a high‐value tropical marine species receiving growing attention for aquaculture development in Singapore and Southeast Asia. At present, seed production relies primarily on uncontrolled mass spawning in sea cages, a practice that lacks consistency, biosecurity and control of genetic ...
Bing Liang, Dean R. Jerry, Joyce Koh, Purushothaman Kathiresan, Celestine Terence, Xueyan Shen, Grace Loo, Shubha Vij, Jose A. Domingos   +8 more
wiley   +1 more source

Male‐territory‐visiting polygamy in the sand‐dwelling goby Fusigobius inframaculatus (Gobiidae) inhabiting reef caves

Journal of Fish Biology, EarlyView.
Abstract We conducted an observational field survey of the innerspotted sandgoby Fusigobius inframaculatus on reefs of Kuchierabu‐jima Island, southern Japan, to investigate its mating system. Individuals of the goby maintained home ranges on sandy bottoms within rocky caves or beneath overhangs that served as shelters. Of 34 identified individuals, 32%
Ryoga Seiwa, Yoichi Sakai
wiley   +1 more source

Fathers Are Frightened but May Not Know It: Considering Masculinity and Attachment When Working With Fathers in Family Therapy

Journal of Family Theory &Review, EarlyView.
ABSTRACT Given the often‐unacknowledged emotional realities in theory and practice around masculinities and fatherhood, working with fathers in family therapy needs ongoing attention. Therapists' efforts can be enhanced through attending to how men and fathers may have been socialized towards restrictive masculine ideologies (e.g., devaluing emotional ...
Allen K. Sabey, Jakob F. Jensen, Brandon Jacobs   +2 more
wiley   +1 more source

Epididymal sperm maturation in mouse species with differing levels of sperm competition†. [PDF]

Biol Reprod
Agudo-Rios C, Sanchez-Rodriguez A, Idrovo IID, Laborda-Gomariz JÁ, Soler AJ, Valverde A, Teves ME, Roldan ERS.   +7 more
europepmc   +1 more source

Sperm competition in squamate reptiles. [PDF]

Philos Trans R Soc Lond B Biol Sci, 2020
Friesen CR, Kahrl AF, Olsson M.
europepmc   +1 more source

Reproductive Curation: Assisted Reproductive Technologies ( ARTs ) and Lesbian Motherhood‐Making

Journal of Marriage and Family, EarlyView.
ABSTRACT Objective This paper introduces reproductive curation, the deliberate coordination of reproductive arrangements, as a theoretical framework for examining how legal, institutional, and interpersonal factors interact with technology in shaping reproductive decision‐making, based on interviews with 32 lesbian mothers and mothers‐to‐be in China ...
Xiaomin Cai, Susanne Y. P. Choi
wiley   +1 more source

Male-derived PBP4 is essential for sperm competition by mediating sperm motility in moths. [PDF]

Proc Natl Acad Sci U S A
He Y, Yan Q, Hou JH, Li Y, Wei ZQ, Guo JM, Liu NY, Knaden M, Hansson BS, Dong SL, Zhang J.   +10 more
europepmc   +1 more source

The baculum affects paternity success of first but not second males in house mouse sperm competition. [PDF]

BMC Ecol Evol, 2021
Winkler L, Lindholm AK, Ramm SA, Sutter A.   +3 more
europepmc   +1 more source

Sperm competition in humans [PDF]

, 2006
Nicholas Pound, Todd K. Shackelford, Aaron T. Goetz   +2 more
openaire   +1 more source