Jens Currie

Jens Currie
Pacific Whale Foundation · Research

BSc, MS

About

36
Publications
8,914
Reads
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217
Citations
Citations since 2016
22 Research Items
192 Citations
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201620172018201920202021202201020304050
201620172018201920202021202201020304050
Introduction
Jens Currie is the Chief Scientist at Pacific Whale Foundation and manages the organization's domestic (USA) research program. His research focuses on modelling anthropogenic and environmental impacts on cetacean populations.

Publications

Publications (36)
Article
Full-text available
Anthropogenic greenhouse gas emissions are triggering changes in global climate and warming the ocean. This will affect many marine organisms, particularly those with high site fidelity and habitat temperature preferences, such as humpback whales on their breeding grounds. To study the impacts of a warming ocean on marine organisms, large-scale pro...
Article
Full-text available
The increase and diversification of vessel traffic worldwide has resulted in a variety of known disturbances to dolphins. As a remote island chain, the Hawaiian Islands rely heavily on the marine environment for transportation, recreation, and fishing that aggregates into significant levels of vessel traffic. Given the known presence of dolphins in...
Article
Cigarette filters are made of non-biodegradable plastic and are one of the top littered items worldwide. Here, we determine if policy implementation is an effective strategy for reducing cigarette filter litter on beaches in Maui, Hawai'i by comparing cigarette filter counts before and after a policy banning tobacco use was implemented. We use a be...
Article
Full-text available
In Maui Nui, Hawai‘i, limited information is available regarding the impact of fisheries interactions on two island-associated populations of common bottlenose (Tursiops truncatus) and pantropical spotted dolphins (Stenella attenuata). To quantify the number of individuals with evidence of fisheries interactions, this study examined images of bottl...
Article
Full-text available
Swim-with-whale tourism has expanded across several countries globally, with humpback whales ( Megaptera novaeangliae ) being the most commonly targeted species of baleen whale. Behavioural responses from humpback whales to swim-with-whale tours have been reported, however, responses are likely context-dependent. In 2014, swimming with humpback wha...
Article
Full-text available
Species conservation relies on understanding population demographics, yet this information is lacking for many species and populations. Four stocks of common bottlenose dolphins Tursiops truncatus inhabiting the waters surrounding the main Hawaiian Islands (USA) are exposed to anthropogenic disturbances including fisheries interactions, tourism, na...
Article
Full-text available
Understanding the impacts of foraging disruptions to odontocete body condition is fundamental to quantifying biological effects of human disturbance and environmental changes on cetacean populations. Here, reductions in body volume of free-ranging pygmy killer whales (Feresa attenuata) were calculated using repeated measurements of the same individ...
Article
Full-text available
We need reliable information about the spatial and temporal distribution of mobile species to effectively manage anthropogenic impacts to which they are exposed. Yet, we often cannot sustain dedicated annual surveys and data obtained from platforms of opportunity offer an alternative avenue to understand where these species spend time. Four odontoc...
Article
Full-text available
The concurrent increase in marine tourism and vessel traffic around the world highlights the need for developing responsible whale watching guidelines. To determine the impact of vessel presence on humpback whale behaviors in Maui Nui, a land-based study was conducted from 2015 to 2018 in Maui, Hawai'i. Theodolite tracks were used to summarize hump...
Article
Full-text available
Spinner dolphins Stenella longirostris longirostris in Hawai‘i exhibit a predictable diurnal behavioral pattern which makes them vulnerable to human disturbance: feeding at night in offshore waters and resting during daytime in bays. There is concern that human activity, such as swimming with and viewing wild dolphins from vessels, is altering thei...
Article
Full-text available
We examined the incidence of bent or collapsed dorsal fins of eight species of odontocetes observed in the nearshore waters of Maui Nui, Hawaii. Between 1995 and 2017, 1,312 distinctive individual odontocetes were photographically documented. Our photo-identification catalogs include 583 spinner dolphins (Stenella longirostris longirostris), 164 bo...
Article
Full-text available
Tourism activities are expanding in both terrestrial and marine environments, which can have detrimental effects on the target species. Balancing the amount of disturbance a population of animals receives against the educational value of tourism requires localised research and adaptive management. This study examined the distribution of humpback wh...
Article
Located within the subtropical convergence zone, the Hawaiian archipelago is subject to high debris loads. This paper represents the first study to determine the spatial and temporal trends of floating macro debris quantities and polymer composition within Maui County waters. Ocean surveys were conducted from 2013 to 2017 and collected 2095 debris...
Article
Full-text available
Pacific Whale Foundation (PWF) Eco-Adventures operates a fleet of nine ecotour vessels in Maui, Hawaii and has used these vessels as an opportunistic research platform since 2010. The researchers at PWF have utilized ecotour vessels as a platform of opportunity (PoP) to collect photo-ID data, through a program called Researcher-on-Board (ROB) and f...
Article
Marine debris poses considerable threat to biodiversity and ecosystems and has been identified as a stressor for a variety of marine life. Here we present results from the first study quantifying the amount and type of debris accumulation in Maui leeward waters and relate this to cetacean distribution to identify areas where marine debris may prese...
Article
Full-text available
Increasing humpback whale populations and vessel traffic has led to an increase in reported whale-vessel collisions. This paper reports on factors that affect the rate of whale-vessel collisions in the four-island region of Maui, Hawai‘i. More specifically, it aims at quantifying the probability of a whale-vessel collision with varying vessel speed...
Technical Report
Full-text available
Increasing humpback whale populations and vessel traffic has led to an increase in whale-vessel collisions. This paper presents results from the first three years of a five-year study designed to quantify the probability of whale-vessel collisions in the four-island region of Maui, Hawai'i. More specifically, it aims at quantifying the probability...
Technical Report
Full-text available
The whalewatching industry and other platforms of opportunity (PoPs) have the potential of making valuable contributions to the understanding of cetacean populations, especially in areas where data are lacking. Pacific Whale Foundation (PWF) has developed a web-based application, Whale and Dolphin Tracker (WDT), which allows for simultaneous collec...
Technical Report
Full-text available
The large size of Australian humpback whale (Megaptera novaeangliae) photo-identification (ID) catalogs is both a strength and a challenge. Every year, researchers add hundreds of new flukes photographs to their catalogs, making the task of pairwise checking all individuals exponentially more difficult. Large catalogs mean that cross-checking is pr...
Technical Report
Full-text available
The whalewatching industry and other platforms of opportunity (PoPs) have the potential of making valuable contributions to the understanding of cetacean populations, especially in areas where data are lacking. Pacific Whale Foundation (PWF) has developed a web-based application, Whale and Dolphin Tracker (WDT), which allows for simultaneous collec...
Technical Report
Full-text available
The concurrent increase in abundance of certain whale populations and vessel traffic in many parts of the world has highlighted the need for quantifying the probability of whale encounters and whale-vessel strikes. The number of humpback whales (Megaptera novaeangliae) frequenting Hawaiian breeding grounds has been increasing, along with the number...
Conference Paper
Full-text available
The concurrent increase in abundance of certain whale populations and boat traffic in many parts of the world has highlighted the need for quantifying the probability of whale encounters and vessel strikes. The number of humpback whales (Megaptera novaeangliae) frequenting Hawaiian breeding grounds is increasing. A study investigating the probabili...
Article
Full-text available
This paper evaluates the applicability of neural networks to estimate wind speeds at various target locations using neighboring reference locations on the South coast of Newfoundland Canada. The stations were chosen to cover a variety of topographic features, and span distances in excess of 100 km. The goal of the study was to provide a general des...
Technical Report
Full-text available
The concurrent increase in abundance of certain whale populations and boat traffic in many parts of the world has highlighted the need for quantifying the probability of whale encounters and whale-vessel strikes. The number of humpback whales (Megaptera novaeangliae) frequenting Hawaiian breeding grounds is increasing, along with the number of repo...
Article
Full-text available
Estimates of key population parameters are required to evaluate conservation or management measures, but are often available at only a few locations within the range of a species. We assembled all available estimates of a single parameter (fecundity as a function of size) in the lobster Homarus americanus to develop a large-scale model applicable t...
Article
Full-text available
We investigated a noninvasive sampling technique that estimates fecundity for ovigerous American lobster based on field measurement and live release. These estimates were compared with fecundity estimates obtained from the widely used traditional invasive technique involving the removal, drying, and weighing of the entire egg mass. The noninvasive...
Conference Paper
Population parameters for lobsters are known to vary with latitudinal variation in environmental conditions, but a quantitative model, applicable throughout the species range has not been developed. To create such a model, fecundity estimates for American Lobster (Homarus americanus) were obtained from 11 different locations in the Northwest Atlant...

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Projects

Projects (6)
Project
The goal of this study is to determine the type, amount, and source of marine debris in the nearshore waters and shorelines of Hawaii, so we can advocate on local and global levels for data-driven policies to prevent this material from entering the oceans.
Project
The goal of this study is to measure the impact that human activities, such as climate change, vessel traffic, fisheries, and marine tourism can have on the target populations and use scientific data to advise stakeholders on best practices and sustainable co-existence.
Project
The goal of this study is to maintain long-term continuous monitoring of dolphins in Hawaii, and identify threats or stressors to provide science-based recommendations on mitigation and conservation strategies.