Contrasting beta-diversity patterns of temperate coastal fish species and their functional traits

Estuarine Coastal and Shelf Science, Journal Year: 2025, Volume and Issue: unknown, P. 109245 - 109245

Published: March 1, 2025

Language: Английский

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Use of presence vs absence of symphyseal teeth in jaws for the forensic analysis of bites by large traumatogenic shark species

Journal of Forensic Sciences, Journal Year: 2024, Volume and Issue: 69(6), P. 2270 - 2274

Published: Aug. 8, 2024

Abstract Identifying the species of shark responsible for a bite on humans is both complex and important understanding managing risk. Depending species, tiny teeth may or not be present in symphyseal space at junction upper lower half‐jaws. In case bites, these (if present) often leave specific marks that enable to quickly reliably distinguished. We first anatomo‐morphological characteristics jaws three most traumatogenic which are white, tiger, bull sharks. The white has no teeth, while tiger sharks do. On basis confirmed real studies involving those we then show shark, wide between two each jaw usually leads wounds including presence (quite) large flesh flaps, without any tooth imprint. Conversely, following bites made by will generally characteristic small imprints especially incomplete superficial bites. Although systematic, this diagnostic approach provides fast, reliable, clean results. discrimination with can complementary anatomic information such as curvature details linked anatomy themselves, well ecological context.

Language: Английский

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Optimizing landscape-scale coastal monitoring and reporting through predicted versus observed animal abundance models

ICES Journal of Marine Science, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 10, 2024

Abstract Effective environmental management hinges on monitoring drivers of change and effectively communicating results to stakeholders. While animals are valuable for engagement, few programs successfully integrate metrics quantifying their assemblages. We studied fish responses factors (including landscape context water quality) in a 3-year survey across six ecosystems 13 estuaries eastern Australia (for >1800 surveys), developed novel predicted versus observed approach monitoring, grading, reporting animal populations. Fish species richness the abundance five indicator were explained significantly by at least one spatial attribute sites (e.g. connectivity with mangroves ocean), quality metric reflecting annual median conditions (especially turbidity, dissolved oxygen (DO), chlorophyll concentration). For our grading approaches, values calculated each replicate using best-fit models indicator, thereby accounting natural spatiotemporal variation standardizing site-to-site comparisons. Evaluating methods translating into graded scores estuary, we recommend simple metric: percentage above predictions. discuss this as useful complementary predominantly physical parameter challenges establishing ongoing protocols.

Language: Английский

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Interdecadal stability in ecological indicators suggests no ecosystem downgrading by a long-standing shark fishery

Ocean & Coastal Management, Journal Year: 2024, Volume and Issue: 261, P. 107521 - 107521

Published: Dec. 10, 2024

Language: Английский

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