A5069752865- Fish Ecology and Management Studies
- Ichthyology and Marine Biology
- Marine and fisheries research
- Fish Biology and Ecology Studies
- Marine Bivalve and Aquaculture Studies
- Fish biology, ecology, and behavior
- Reproductive biology and impacts on aquatic species
- Marine animal studies overview
- Coral and Marine Ecosystems Studies
- Aquaculture Nutrition and Growth
- Physiological and biochemical adaptations
- Aquatic Invertebrate Ecology and Behavior
- Marine and coastal plant biology
- Aquaculture disease management and microbiota
- Ocean Acidification Effects and Responses
- Crustacean biology and ecology
- Venomous Animal Envenomation and Studies
- interferon and immune responses
- Cell Adhesion Molecules Research
- Marine Ecology and Invasive Species
- Water Quality and Resources Studies
- Environmental DNA in Biodiversity Studies
- Water Quality Monitoring Technologies
- Invertebrate Immune Response Mechanisms
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
Oregon State University
2023-2025
Arizona State University
2019-2024
Oregon State Hospital
2024
University of New England
2011-2021
New College of Florida
2020
University of New Hampshire at Manchester
2003-2008
University of Florida
2005-2007
University of New Hampshire
2003-2007
Florida Museum of Natural History
2007
DePaul University
2001
ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 14:135-140 (2011) - DOI: https://doi.org/10.3354/esr00354 AS WE SEE IT Killing for conservation: need alternatives lethal sampling of apex predatory sharks Neil Hammerschlag1,2,3,*, James Sulikowski4 1Rosenstiel School Marine and Atmospheric Science, University Miami, 4600 Rickenbacker Causeway, Florida 33149, USA...
Abstract This article documents the addition of 220 microsatellite marker loci to Molecular Ecology Resources Database. Loci were developed for following species: Allanblackia floribunda, Amblyraja radiata, Bactrocera cucurbitae, Brachycaudus helichrysi, Calopogonium mucunoides, Dissodactylus primitivus, Elodea canadensis, Ephydatia fluviatilis, Galapaganus howdenae howdenae, Hoplostethus atlanticus, Ischnura elegans, Larimichthys polyactis, Opheodrys vernalis, Pelteobagrus fulvidraco,...
Abstract In recent years, the recreational contribution to total catch of Atlantic cod (Gadus morhua) in Gulf Maine (GOM) has increased with discards outnumbering landings by 2:1. However, discard mortality (DM) rate released fishery remains poorly understood, thus contributing uncertainty stock assessments and management plans. The current study examined capture-related factors most detrimental DM GOM rod-and-reel fishery. (n = 640; 26.0–72.0 cm) were angled from June–October 2013 on...
Determining where and when animals give birth is critical for establishing effective conservation management that protects vulnerable life stages (e.g., pregnant females newborns) places nursery grounds). To date, this information has been elusive in the case of highly migratory sharks wild. Here, we report on deployment a novel intrauterine satellite tag implanted two mobile apex predators, tiger shark (Galeocerdo cuvier) scalloped hammerhead (Sphyrna lewini), remotely documented location...
Abstract Conservation concerns and new management policies such as the implementation of ecosystem-based approaches to fisheries are motivating an increasing need for estimates mortality associated with commercial fishery discards released fish from recreational fisheries. Traditional containment studies emerging techniques using electronic tags on wild producing longitudinal mortality-time data which discard or release mortalities can be estimated, but where there may also a account...
Spiny dogfish (Squalus acanthias) are assumed to be a highly migratory species, making habitual north-south migrations throughout their northwestern Atlantic United States (U.S.) range. Also benthic spiny stock structure is estimated through Northeast Fisheries Science Center (NEFSC) bottom-trawl surveys. Recent anomalies in population trends, including recent four-fold increase spawning biomass, suggest alternative movement patterns could exist for this shark species. To obtain better...
The scalloped hammerhead, Sphryna lewini (Griffith & Smith, 1834), is a globally exploited species of shark. In order to gain insight into the life history this in USA waters, age and growth was examined from specimens (n = 307) captured north-west Atlantic Ocean Gulf Mexico. von Bertalanffy model resulted parameters L∞ 214.8 cm fork length (FL), k 0.13 year–1, t0 –1.62 year for males 233.1 FL, 0.09 –2.22 females. oldest estimates obtained population were 30.5 years both females, which...
Presented are length–weight relationships for Rhinobatos rhinobatos, cemiculus, Gymnura altevela, Dasyatis pastinaca, Rhinoptera marginata, Pteromylaeus bovinus, Torpedo nobiliana, Raja miraletus and clavata captured by gillnet, longline bottom trawl fishing between May 2010 July 2011 off the east coast of Iskenderun Bay, Turkey.
To fuel the high energetic demands of reproduction, vertebrates employ different tactics resource use. Large sharks exhibit long gestation periods and have relatively few well-developed young, which likely incurs costs. However, information on relationship between reproductive states for most shark species is lacking. In present study, we used a noninvasive approach to assess relationships among stage, plasma triglyceride levels, body condition, circulating hormones in free-ranging female...
While significant progress has been made to characterize life history patterns, movement ecology, and regional estimates of abundance white sharks ( Carcharodon carcharias ) in the Western North Atlantic (WNA), patterns spatial distribution remain relatively unknown northern Gulf Maine. In this study, we utilize data collected from multiple acoustic telemetry projects 2012-2023 assess spatiotemporal along sections Maine coastline offshore waters. Acoustic receivers were deployed each year...
For highly mobile marine species such as pelagic elasmobranchs, the development of effective spatial management requires a comprehensive understanding movement ecology. Research incorporating data across seasons and life stages, including reproductive states, is valuable for informing management, yet absent most species. In Northwest (NW) Atlantic Ocean (hereafter referred to NW Atlantic), porbeagle shark Lamna nasus that overfished, has live retention ban (Canada) or landings regulations...
Age at size was linked to sexual maturity in 77 male and 93 female thorny skates Amblyraja radiata from the western Gulf of Maine using three criteria: 1) gross reproductive morphology, 2) histology 3) steroid hormone concentrations. Age‐bias plots coefficient variation vertebral band counts suggested that ageing method represented a non‐biased precise approach age assessment A. . Maturity ogives for males, based on data gathered clasper length, circulating testosterone concentrations...
The roundel skate (Raja texana) inhabits near-shore waters throughout the Gulf of Mexico. Despite such a wide distribution, very little is known about its biology. In order to gain insight into life history this species, age, growth and maturity 231 skates ranging in size from 277 630-mm total length (TL) were examined. Based on vertebral band counts, oldest age estimates obtained 8 years for males 9 females, which corresponded 495-mm TL respectively. Age-bias plots coefficient variation...
Understanding how rising temperatures, ocean acidification, and hypoxia affect the performance of coastal fishes is essential to predicting species-specific responses climate change. Although a population’s habitat influences physiological performance, little work has explicitly examined multi-stressor species from habitats differing in natural variability. Here, clearnose skate (Rostaraja eglanteria) summer flounder (Paralichthys dentatus) mid-Atlantic estuaries, thorny (Amblyraja radiata)...
ABSTRACT Elasmobranchs (i.e., sharks, skates, rays), known for their cognitive abilities and complex behaviours, often form aggregations that are thought to be crucial survival evolutionary success. However, understanding the drivers behind these remains challenging due dynamism of marine environment difficulty observing species directly. Here, we aim address challenges by introducing a methodological framework analysing catch data infer aggregation behaviour. Within this framework, outline...
The great hammerhead shark (Sphyrna mokarran) is a highly mobile species whose population in the United States declined dramatically through early 2000s. Their spatial ecology poorly understood, creating challenges for effective conservation of this enigmatic marine predator. Using acoustic telemetry and network analyses, we describe movement patterns 15 mature sharks (207-331.5 cm fork length) primarily within waters southeastern from April 2019 to December 2022, including identifying...