Organochlorine residues in finfish from Maryland waters 1976–1980

Abstract

Organochlorine pesticide and herbicide levels were monitored in samples of a variety of edible finfish harvested from the Maryland section of the Chesapeake Bay and its tributaries over a five-year period (1976-80). Qualitative and quantitative information was obtained for the various polychlorinated biphenyls (PCB's), heptachlor, alpha-BHC, chlordane, DDD, DDE, DDT, dieldrin, endrin, heptachlorepoxide, lindane, mirex, methoxychlor, aldrin, toxaphene, hexachlorobenzene, kepone and dacthal. In addition to analyses of the flesh of the animals, organochlorine residue levels were determined in roe or gonad tissue of several samples. Striped bass, white perch and yellow perch samples showed significantly higher concentrations of certain of these substances in roe or gonad tissue, especially PCB's, chlordane, DDD and dieldrin. Significantly higher levels of six organochlorine residues were found in the gonad tissue of striped bass; however, similar studies on gonad tissue of American Shad, harvested from the same region, show no such enhancement. Rather, the reverse is true; levels of certain organochlorine residues are higher in flesh tissue. All mean values, and virtually all individual values of organochlorine concentrations in the edible portion of the fish were within the U.S. Food and Drug Administration guideline, where such guidelines have been established.

Accumulation and Depuration of DDTs in the Food Chain from Artemia to Brook Trout ( Salvelinus fontinalis )

“…Although the widespread use of DDT has been banned in the US and many other countries since 1972, residues of DDT and its metabolites are still detected in many aquatic samples gathered in many different regions of the world (Eisenberg and Topping 1985;Teran and Sierra 1986;Ober et al 1987).…”

Updated Data on Mercury and DDE in Striped Bass (Morone saxatilis) in Relation to Consumption Advisories for the Saint John River, New Brunswick, Canada

“…Current THg levels in SJR Striped Bass muscle tissue remain up to 4 times the acceptable guideline for fish consumption of 0.5 mg/kg ww (Health Canada 2007) and are among the highest reported levels for Striped Bass in North America (Cunningham et al 2003, Mason et al 2006). High THg concentrations in Striped Bass are common in rivers and estuaries (Brim et al 2001, HRF 2004, Melwani et al 2009, Ray et al 1982) but may be lower in Striped Bass inhabiting coastal habitats (Andrews et al 2021, Eisenberg and Topping 1985, Gilmour and Reidel 2000, Greenfield et al 2005). Acipenser brevirostrum Lesueur (Shortnose Sturgeon) in the SJR that can venture to the estuary but rarely depart have THg= 1.17 mg/kg ww (muscle; Dadswell 1975).…”

Assessment of DDT accumulation by brine shrimp(Artemia salina)from filtered water and sewage effluent

“…Although, the widespread use of DDT as an organochlorine pesticide has been banned in many countries since the 1970's, its residues are still detected in many aquatic samples gathered in many different regions of the world (Eisenberg and Topping, 1985;Teran and Sierra, 1986;Ober et al, 1987). Sewage * Corresponding Author 15 Downloaded by [Northeastern University] at 12:19 03 January 2015 effluent is considered as the major source of organochlorine pollutants to the coastal waters, where DDT was recorded as one of the highest concentrations found in aquatic biota living around sewage outfall (Mearns, 1981;Swartz et al, 1985;Miskiewicz and Gibbs, 1994) Direct partitioning or adsorption of these organochlorine pollutants in the aqueous medium plays a major role in the uptake of lipophilic compounds by the lower level of small aquatic organisms, mainly plankton, because of the relatively higher biomass in the smaller sizes (Bruggeman et al, 1984;Harding, 1986;Opperhuizen and Stokkel, 1988;Hoke et al, 1994).…”