Changes

= Reproductive Endocrinology =

= Reproductive Endocrinology =

In fish, as with all higher animals, [[Endocrine_System_-_Hormones_-_Anatomy_%26_Physiology|hormones]] play a critical role in the reproductive process. [[Endocrine_System_-_Hormones_-_Anatomy_%26_Physiology|Hormones]] are chemical messengers released into the blood by specific tissues, such as the pituitary gland. The [[Endocrine_System_-_Hormones_-_Anatomy_%26_Physiology|hormones]] travel through the bloodstream to other tissues, which respond in a variety of ways. One response is to release another [[Endocrine_System_-_Hormones_-_Anatomy_%26_Physiology|hormone]], which elicits a response in yet another tissue. The primary tissues involved in this hormonal cascade are the hypothalamus, pituitary gland, and gonads.

In fish, as with all higher animals, [[Endocrine_System_-_Hormones_-_Anatomy_%26_Physiology|hormones]] play a critical role in the reproductive process. [[Endocrine_System_-_Hormones_-_Anatomy_%26_Physiology|Hormones]] are chemical messengers released into the blood by specific tissues, such as the [[Endocrine_System_-_Pituitary_Gland_-_Anatomy_%26_Physiology|pituitary gland]]. The [[Endocrine_System_-_Hormones_-_Anatomy_%26_Physiology|hormones]] travel through the bloodstream to other tissues, which respond in a variety of ways. One response is to release another [[Endocrine_System_-_Hormones_-_Anatomy_%26_Physiology|hormone]], which elicits a response in yet another tissue. The primary tissues involved in this hormonal cascade are the hypothalamus,[[Endocrine_System_-_Pituitary_Gland_-_Anatomy_%26_Physiology|pituitary gland]], and gonads.

* Reproduction occurs under environmental conditions that are favorable to the survival of the young.  

* Reproduction occurs under environmental conditions that are favorable to the survival of the young.