Schoeman Stephanie, Simon Carol A
Department of Botany and Zoology, Stellenbosch University, Stellenbosch 7405, South Africa.
Biology (Basel). 2023 Mar 21;12(3):483. doi: 10.3390/biology12030483.
Regeneration is critical for survivorship after injury, sublethal predation, and asexual reproduction; it allows individuals to recover, potentially enabling populations of bait species to overcome the effects of bait collection through incidental asexual reproduction. Opportunities for regeneration are created when worms break during collection (which happens more often than not) and are thrown back into the estuary. Additionally, the trade and movement of bait could result in the range expansion of invasive species. This study investigated bait collection habits of local fishermen and the in situ incidence of regeneration in the estuarine moonshine worm, . The evidence shows that this species is capable of anterior and posterior regeneration. The disproportionately small percentage of worms that seem to be recovering from the degree of damage that may be inflicted during bait collection suggests that regeneration may not help worms to withstand the effects of bait collection. However, the continuous movement and discarding of even small numbers of bait in other estuaries can lead to range expansion through incremental build-up, forming new populations, if these fragments are large enough to regenerate.
再生对于受伤、亚致死性捕食和无性繁殖后的生存至关重要；它使个体得以恢复，这可能使诱饵物种的种群通过偶然的无性繁殖克服诱饵采集的影响。当蠕虫在采集过程中折断（这种情况经常发生）并被扔回河口时，就创造了再生的机会。此外，诱饵的贸易和移动可能导致入侵物种的范围扩大。本研究调查了当地渔民的诱饵采集习惯以及河口月光蠕虫的原位再生发生率。证据表明，该物种能够进行前后端再生。从诱饵采集过程中可能遭受的损伤程度来看，似乎正在恢复的蠕虫比例小得不成比例，这表明再生可能无法帮助蠕虫抵御诱饵采集的影响。然而，如果这些碎片足够大能够再生，那么即使在其他河口少量诱饵的持续移动和丢弃也可能通过逐步积累导致范围扩大，形成新的种群。
