... development Gonadotropin independent Body size dependent Stages of Reproduction Stage 1 Oocyte development Stage 2 Vitellogenesis Egg yolk production High ...
General Concepts in Fish Reproduction. General Considerations ... closure of micropyle. Silting. MS222 is toxic to eggs and milt! Spawning. Induced Spawning ...
... feed producer of feed for farmed fish. 40% of the global market for salmon ... Spawn annually and multiple batches,sea bass, sea bream (4-6), halibut (10), cod ...
Can be used to sex embryos in mammals 3. ... Temperature-dependent sex determination Alligators and turtles have no heteromorphic pair of chromosomes-sex is ...
Workshop on Gonadal Histology of Fishes New Orleans, 11-12 July ... Capelin (Mallotus villosus) Lamprey (Petromyzontiformes) Eel (Anguilla anguilla) ...
Fish Farming vs Cattle Ranching ... FISH--Male/female development is ... individuals develop first into females and turn later into males-Ex (Clown Fish) ...
No.1 feed producer of feed for farmed fish. 40% of the global ... Spawn annually and multiple batches,sea bass, sea bream (4-6), halibut (10), cod (15-20) ...
Title: PowerPoint-esitys Author: Pasi Ter sti Last modified by: Oulun yliopisto Created Date: 2/20/2003 8:01:58 AM Document presentation format: Overhead
seminal fluid: activates sperm; production regulated by JH ... 3. vagina (bursa copulatrix) The Insect Reproductive System. II. Female Reproductive System ...
E7-1. Hormonal Control of Reproduction. female. male. Dendrobates azureus. E7-2 ... Therefore, must be precisely timed to insure maximal survival of young ...
Events in Fish Maturation Remember This? GnRH has a primary role in reproduction It is common to all things with a spine Must be some connection to spawning groups A ...
Conclusion Many internal and external factors affect the size of parasite populations Genes vs ecology hypotheses for determination of parasite population ...
Mink Lake Michigan. Repro failure. Fed lake fish. Those fed fish from other sources normal ... Fish-eating birds Gulf Coast, Great Lakes. Abnormalities of ...
Gametogenesis Twice upon a time . Oocyte Maturation For the majority of organisms, yolk proteins and developmental regulatory factors are added to the egg ...
FISH--Male/female development is regulated by genetic and hormonal control ... individuals develop first into females and turn later into males-Ex (Clown Fish) ...
Evaluate exposure of Cincinnati fathead minnow fry to sediment from Lake 260 ... Fish were collected in Lake 114 using minnow traps two days before deployment. ...
Vitellogenin (phospholipoglycoprotein) is an egg ... Males have the ability to produce egg yolk protein but generally never receive ... Rosuvastatin (Crestor) ...
Sensory perception. 1. Olfaction smell. nares - often a pit with a flap of skin. Olfactory rosette structure ... Leptocephali, elver, adults. Migrations: ...
University of Puerto Rico Intercampus Doctoral Program in Biology ENDOCRINE DISRUPTING CHEMICALS: EFFECTS AND MECHANISM OF ACTION IN VTG GENE EXPRESSION IN THE ...
Meiosis is the first step in gametogenesis: separation of homologous chromosomes into haploid daughter cells Spermatogonia and oogonia are the germ cells that will ...
Invertebrate Endocrinology As You know: Invertebrates are animals without a backbone. The invertebrates form all of the major divisions of the animal kingdom called ...