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Article Reference Reconciling the impact of mobile bottom-contact fishing on marine organic carbon sequestration
Anthropogenic activities that disturb the seafloor inadvertently affect the organic carbon cycle. Mobile bottom-contacting fishing (MBCF) is a widespread fishing technique that involves the dragging of fishing gear across the seafloor and disrupts seafloor sediments and alters carbon storage dynamics. However, the impact of MBCF on carbon sequestration is still not well quantified, with global estimates of MBCF-induced carbon release ranging from less than 17 Mt C yr−¹ to 400 Mt C yr−¹ with limited assessment of associated uncertainties. Addressing these knowledge gaps is essential for informing effective, evidence-based policy. Here, we force a carefully parametrized organic carbon mineralization model with empirical relationships and observational data from the Northwest European continental shelf and use a Monte-Carlo approach to assess the uncertainty associated to our estimate. We find that MBCF on the Northwest European continental shelf could reduce sedimentary carbon storage by 270 kt C yr−¹. However, the estimated uncertainty remains large (25%-75% percentile range = 620 kt C yr−1), mainly due to uncertainties in the spatial variability of organic carbon reactivity. Our findings also show that the divergence of carbon release estimates in the literature is primarily due to differences in how organic carbon reactivity is parameterized, with higher release estimates often reflecting overestimated mineralization rates. Overall, our study demonstrates the need for targeted experimental studies to quantify how sediment disturbance influences organic carbon reactivity, to better constrain the impacts of anthropogenic activities on the marine carbon cycle and support accurate carbon accounting and informed policymaking.
Located in Library / RBINS Staff Publications 2025
Article Reference ANNiKEY Linear – diagnoses, descriptions, and a single-access identification key to Annelida family-level taxa
Phylum Annelida are ubiquitous metazoans found in almost every terrestrial and aquatic habitat on Earth. Historically, taxonomic studies on the phylum have been focused largely on its majorgroups, polychaetes, oligochaetes and leeches, so that while family-level keys for each group are available, no single-source identification guide exists to the world’s annelid families. Here, the first illustrated linear key to annelid families is provided and family-level descriptions and diagnoses that distinguish individuals of each family from those of other families in the phylum are updated. This information is generated from an annelid DELTA database of 334 characters and 166 mostly family-level taxa. A link is provided to downloadable software (ANNiKEY Interactive) allowing the same data to be interrogated using the open-source DELTA program Intkey, which enables both interactive identification and taxonomic query functionality. For each family-level taxon, a diagnosis, full description, links to taxonomic data at the World Register of Marine Species, illustrations of diagnostic features, and a summary of the recent literature, including a list of published keys to genera and species are provided.
Located in Library / RBINS Staff Publications 2025
Article Reference An ichthyological borderland: The fishfauna of Nyungwe National Park and surroundings (Rwanda, East Africa)
Nyungwe National Park (NP) is a mountainous region situated in the southwestern part of Rwanda on Congo-Nile watershed. In spite of the high biodiversity in pri- mates, birds and plants, no fish were reported to occur in the park, probably because of the cold temperatures of the rivers. An expedition in 2022 examined the fish diver- sity within the Nyungwe NP and its buffer zones. Additional sampling was performed in the main river draining the park into Lake Kivu: the Kamiranzovu. Three hundred and twenty specimens belonging to 13 species were collected. Specimens were col- lected only in the western part of the park, draining towards the Congo basin. The diversity within the park proper was limited to two putative species within the com- plex of Amphilius cf. kivuensis, which were caught on either side of the Kivu–Rusizi watershed. In contrast, a higher fish diversity, including one clariid species and two species of Enteromius, was observed in the rivers at a lower altitude of the buffer zone. However, the highest species diversity was found near the mouth of Kamiran- zovu River, including 11 species, of which 4 were non-native: the guppy Poecilia reti- culata, Astatotilapia burtoni, the blue-spotted tilapia Oreochromis leucosticus and the Egyptian mouth-brooder Pseudocrenilabrus multicolor.
Located in Library / RBINS Staff Publications 2025
Webpublished Reference Fish Remains. In: Bolger, D., Peltenburg, E. (eds) Tell Jerablus Tahtani, Syria, Vol. II. Reports on excavations at the Jerablus Tahtani Settlement (1992-2004) [data-set]. York: Archaeology Data Service [distributor]
This report provides details on some of the fish remains from the Jerablus settlement. The analysis includes only remains from contexts that were undisturbed, in situ, or safely stratified but not in situ. The number of specimens is low in contexts belonging to the Late Chalcolithic (Period IA), the pre-fort phase of the Early Bronze Age (Period IIA), and the Islamic period (Period V). The majority of the remains are from the Middle˗Late Uruk period (Period IB) and the fort phase of the Early Bronze Age (Period IIB). No fish bones examined by the author were from Hellenistic-Byzantine times (Period IV).
Located in Library / RBINS Staff Publications 2025
Article Reference Non-exchangeable hydrogen (δ2H) stable isotope ratios in fauna provide enhanced dietary, isotopic niche and home range reconstruction at Aqaba Castle, Jordan
Bone collagen of terrestrial and marine animals (n = 218) recovered from Ottoman period contexts at Aqaba Castle, Jordan (16th–19th centuries CE), were analyzed for δ13C, δ15N, and δ2H isotope ratios. While δ13C and δ15N values showed considerable overlap among species in the hyperarid environment, δ2H values exhibited less overlap, enhancing stable isotopic niche differentiation. In domesticates, δ2H values show trophic enrichments of +18.4‰ from herbivores to omnivores (dogs), and +26‰ to cats which had the highest δ2H values. Fish δ2H values show a positive relationship with increasing trophic level but also moderately correlate with body size (r = 0.6
Located in Library / RBINS Staff Publications 2025
Article Reference High expectation, low implementation: perceptions of African fish and fisheries experts on genetic indicators in fisheries management
Located in Library / RBINS Staff Publications 2025
Article Reference ANNiKEY Interactive – A Taxonomic Information System and multi-access identification key to Annelida
Located in Library / RBINS Staff Publications 2025
Article Reference Erratum to: redescription of the Upper Jurassic Aeshna antiqua Vander Linden, 1827 in the anisopteran family Protolindeniidae (Odonata)
Located in Library / RBINS Staff Publications 2025
Article Reference Redescription of the Upper Jurassic Aeshna antiqua Vander Linden, 1827 in the Anisopteran family Protolindeniidae (Odonata)
Located in Library / RBINS Staff Publications 2025
Article Reference Ordovician (Darriwilian–Katian) brachiopods from the southeastern margin of Avalonia (Condroz Inlier, Belgium)
Located in Library / RBINS Staff Publications 2025