Weissman Amelia M, Mandelman John W, Rudders David B, Sulikowski James A
Marine Science Center, University of New England, 11 Hills Beach Rd., Biddeford, ME, USA.
Anderson Cabot Center for Ocean Life, New England Aquarium, 1 Central Wharf, Boston, MA, USA.
Conserv Physiol. 2018 Oct 26;6(1):coy058. doi: 10.1093/conphys/coy058. eCollection 2018.
Capture and handling stress studies are considered a primary research priority, particularly for species and fisheries where discard rates are high, and/or for overfished stocks and species of concern. , a commercially valuable finfish in New England, constitutes the second highest bycatch species within the sea scallop dredge fishery. Despite its commercial importance, no data exists on the capture and handling stress of monkfish for any gear type. Given these shortcomings, our goals were to evaluate the stress response of monkfish captured in scallop dredge gear by evaluating physical, behavioural and physiological responses to scallop fishing practices. While 80% of monkfish displayed little to no physical trauma, behavioural and physiological assessment indicated high levels of stress, especially as air exposure and tow duration increased. This finding suggests that the manifestation of stress in monkfish may be a cryptic response necessitating further research in addition to estimates of post-release mortality rates to appropriately advise fisheries management regarding the mortality of monkfish bycatch in the sea scallop fishery.
捕捞和处理应激研究被视为首要研究重点，特别是对于丢弃率高的物种和渔业，以及/或者对于过度捕捞的种群和受关注的物种。在新英格兰具有商业价值的食用鱼，在海扇贝拖网渔业中是副渔获物第二多的物种。尽管它具有商业重要性，但对于任何渔具类型的安康鱼的捕捞和处理应激都没有数据。鉴于这些不足，我们的目标是通过评估安康鱼对扇贝捕捞作业的物理、行为和生理反应，来评估在扇贝拖网渔具中捕获的安康鱼的应激反应。虽然80%的安康鱼几乎没有身体创伤，但行为和生理评估表明应激水平很高，尤其是随着空气暴露时间和拖曳时间的增加。这一发现表明，安康鱼应激的表现可能是一种隐秘反应，除了估计放流后死亡率之外，还需要进一步研究，以便就海扇贝渔业中安康鱼副渔获物的死亡率向渔业管理提供适当建议。
