Special considerations in the culture of striped bass and striped bass hybrids
No abstract available at this time
Book chapter↗
Geology topics
G. T. Klar
Publications and source records attributed to G. T. Klar.
Diet related anemia in channel catfish: Case history and laboratory induction
Severe anemia among fingerling to adult channel catfish (Ictalurus punctatus) and blue catfish (Ictalurus furcatus) was reported by 39 of 166 catfish farmers in west‐central Alabama in 1983. The hematocrits of moribund fish in ponds ranged from 0 to 5%. Weekly mortalities as high as 5% in individual ponds were recorded. The gills of affected fish were pale or white, the kidneys and spleen were pink, and the liver was gray to tan. In 27 of 29 ponds where the type or brand of feed was changed, deaths ceased within 1 week. However, the disease was noted among fish regardless of the major brand or type of feed used. Under laboratory conditions, the feeding of diets from affected farms induced anemia in fry, but not in subadults. The cause of the anemia was associated with an unidentified factor or factors in diets.
Progressive Fish-Culturist↗
Marking fingerling striped bass and blue tilapia with coded wire tags and microtaggants
Fingerling striped bass ( Morone saxatilis ) of two year classes were tagged in four body locations with coded wire tags and on two locations with Microtaggants (laminated plastic particles containing layers of fluorescent and magnetic material). Retention of coded wire tags ranged from 33% for tags in the nose to 100% for tags in the cephalic portion of the adductor mandibularis (a small muscle located below the eye). Twenty percent of the fish tagged with Microtaggants in 1982 retained tags after 471 d; 98% of the ones tagged in 1983 retained Microtaggants after 270 d. Fingerling blue tilapias ( Tilapia aurea ) were tagged on the body with Microtaggant particles and in the nose and epaxial muscle with coded wire tags. After 328 d, retention was 11% for Microtaggants. Coded wire tag retention was 93% for tags in the nose, 94% for tags in the epaxial muscle anterior to the dorsal fin, and 88% for tags in the muscle posterior to the dorsal fin. For striped bass, implantation of coded wire tags in the adductor mandibularis is recommended for long-term tag retention. Implantation of coded wire tags in the nose is recommended for blue tilapia for long-term retention. Microtaggants are not recommended for long-term tagging of either species, but are appropriate for short-term studies of 1 year or less.
North American Journal of Fisheries Management↗