Organochlorine contaminants and maternal offloading in the lecithotrophic Pacific angel shark ( Squatina californica ) collected from southern California

Lyons, Kady; Lowe, Christopher G.

doi:10.1016/j.marpolbul.2015.05.019

Cited by 13 publications

(1 citation statement)

References 18 publications

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“…from Cardigan Bay (UK), for which the concentrations of polychlorinated biphenyls (PCBs) were defined as being in the "medium" category of contamination. Lyons and Lowe (2015) analysed the organochlorine contaminants in the liver of S. californica (n = 4), with both dichloro-diphenyl-trichloroethane (DDT; 0.63-16.2 μg g −1 wet weight) and PCBs (0.60-3.3 μg g −1 ), as well as the total organochlorine concentrations (10.1 ± 7.7 μg g −1 ) found to be higher than observed in other demersal elasmobranchs from the study area.…”

Section: Trophic Ecologymentioning

confidence: 99%

Angel sharks (Squatinidae): A review of biological knowledge and exploitation

Ellis

Barker

Phillips

et al. 2021

Journal of Fish Biology

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Angel sharks (Squatina spp.) are distributed in warm temperate to tropical waters around the world. Many species occur in shelf seas and exhibit seasonal inshoreoffshore migrations, moving inshore to give birth. Consequently, there can be high spatial overlap of angel shark populations with fisheries and other human activities. Their dorso-ventrally flattened body shape, large size (most species attain >100 cm total length, L T) and demersal nature means that they may be taken in a variety of demersal fishing gears from birth. Available data indicate that angel sharks typically have a biennial reproductive cycle, with litter sizes generally <20 and the young born at c. 20-30 cm. The biological characteristics of angel sharks render them susceptible to overexploitation, as exemplified by the decline of Squatina squatina from many parts of its former range in the northeast Atlantic and Mediterranean Sea. Currently, half of the 22 recognized extant species of angel shark are classed as Threatened on the International Union for Conservation of Nature (IUCN) Red List (with a further three classified as Data Deficient). Given the biological vulnerability of angel sharks, and that many species are data-limited, the current paper provides a review of available biological information and fisheries data pertaining to this family.

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Section: Trophic Ecologymentioning

confidence: 99%